Настройки

Укажите год
-

Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

Подробнее
-

Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

Подробнее

Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Укажите год
Укажите год
Применить Всего найдено 1317. Отображено 106.
20-07-2016 дата публикации

FUEL GAS SUPPLY SYSTEM IN SHIP

Номер: KR1020160086440A
Автор: LEE, WEON DOO, KANG, HO SUK, YOON, HO BYUNG, LEE, JONG CHUL, HWANG, YE RIM
Принадлежит:

A fuel gas supply system in a ship is disclosed. According to an embodiment of the present invention, the fuel gas supply system in a ship comprises: a storage tank accommodating fuel gas composed of liquefied gas and evaporated gas; a liquefied gas supply line evaporating the liquefied gas to be supplied to an engine; an evaporated gas supply line compressing the evaporated gas to be supplied to the engine; and a methane number control unit having a buffer tank which stores a portion of the evaporated gas so as to supply fuel gas by being suitable for a condition methane number of the fuel gas which the engine requires. COPYRIGHT KIPO 2016 (150) Control unit ...

Подробнее
Номер записи: 1
16-02-2017 дата публикации

선박의 연료 가스 공급 제어 장치 및 방법

Номер: KR0101707511B1
Автор: 장재형, 류승각, 손수정, 유진열
Принадлежит: 대우조선해양 주식회사

... 본 발명은 MEGI 엔진의 이상 정지 시 연료 가스 공급을 효율적으로 제어하는 장치 및 방법에 관한 것이다. 본 발명의 일 측면에 따르면, 선박의 연료 가스 공급 제어 장치에 있어서, 제1 MEGI 엔진의 가스 로드와 제2 MEGI 엔진의 가스 로드를 모니터링하다가 상기 제1 MEGI 엔진의 가스 로드 및 상기 제2 MEGI 엔진의 가스 로드 중 적어도 하나가 0이 되면 피드포워드 제어 신호를 하이콤 제어기 및 PRS 제어기로 전송하는 피드포워드 제어기; 상기 피드포워드 제어 신호를 수신하면 하이콤 재순환 밸브를 현재보다 더 개방하는 하이콤 제어기; 및 상기 피드포워드 제어 신호를 수신하면 PRS 밸브를 현재보다 더 개방하는 PRS 제어기를 포함하고, 상기 하이콤 재순환 밸브는 하이콤 내부로 재순환되는 가스의 양을 조절하는 밸브이고, 상기 PRS 밸브는 PRS로 공급되는 가스의 양을 조절하는 밸브인, 선박의 연료 가스 공급 제어 장치가 제공된다.

Подробнее
Номер записи: 2
18-07-2016 дата публикации

APPARATUS AND METHOD FOR CONTROLLING FUEL GAS SUPPLY IN SHIP

Номер: KR1020160085616A
Автор: JANG, JAE HYEOUNG, LYU, SUNG KAK, SON, SU JEONG, YU, JIN YEOL
Принадлежит:

The present invention relates to an apparatus and a method for efficiently controlling fuel gas supply at the time of abnormal stopping of a MEGI engine. An apparatus for controlling the supply of fuel gas in a ship according to an embodiment of the present invention comprises: a feedforward controller which monitors a gas load of a first MEGI engine and a gas load of a second MEGI engine, and transmits, when at least one of the gas load of the first MEGI engine and the gas load of the second MEGI engine becomes 0, a feedforward control signal to a HICOM controller and a PRS controller; a HICOM controller which further opens a HICOM recirculation valve more than the current when receiving the feedforward control signal; and a PRS controller which further opens the PRS valve more than the current when receiving the feedforward control signal, wherein the HICOM recirculation valve is a valve which controls the amount of gas recirculated into a HICOM, and the PRS valve is a valve which controls ...

Подробнее
Номер записи: 3
20-07-2016 дата публикации

FUEL GAS SUPPLY SYSTEM IN SHIP

Номер: KR1020160086460A
Автор: LEE, WEON DOO, KANG, HO SUK, YOON, HO BYUNG, LEE, JONG CHUL, HWANG, YE RIM
Принадлежит:

A fuel gas supply system in a ship is disclosed. According to an embodiment of the present invention, the fuel gas supply system in a ship comprises: a storage tank accommodating fuel gas composed of liquefied gas and evaporated gas; a first fuel gas supply line supplying the evaporated gas to an engine; and a methane number control unit controlling a methane number of the fuel gas. Moreover, the methane number control unit comprises: a pressurization pump pressurizing the liquefied gas of the storage tank; an evaporator evaporating the liquefied gas compressed by the pressurization pump; and a methane number control line supplying the liquefied gas which is evaporated to the storage tank. COPYRIGHT KIPO 2016 ...

Подробнее
Номер записи: 4
20-07-2016 дата публикации

FUEL SUPPLY APPARATUS FOR VESSEL AND FUEL SUPPLY METHOD FOR VESSEL

Номер: KR1020160086434A
Автор: LEE, WEON DOO, KANG, HO SUK, YOON, HO BYUNG, LEE, JONG CHUL, HWANG, YE RIM
Принадлежит:

A fuel supply apparatus for a vessel is disclosed. According to an embodiment of the present invention, provided is the fuel supply apparatus for a vessel, which comprises: a storage tank accommodating fuel composed of liquefied natural gas and boiled off gas; a liquefied gas supply line supplying the liquefied natural gas of the storage tank to an engine; a boiled off gas supply line supplying the boiled off gas of the storage tank to an engine, and having a compression unit compressing the boiled off gas; and a methane number control unit having an auxiliary tank to store boiled off gas generated in a laden voyage so as to supply fuel by being fitted to a condition methane number of fuel which an engine requires. COPYRIGHT KIPO 2016 ...

Подробнее
Номер записи: 5
20-07-2016 дата публикации

FUEL GAS SUPPLY SYSTEM IN SHIP

Номер: KR1020160086583A
Автор: JUNG, IL WOONG, MOON, SUNG JAE, YOO, HO YUN, JYEON, CHUN SEEK, CHO, MIN KYU, CHO, JUNG KWAN, CHOI, BYUNG YOON, CHOI, SUNG HUN
Принадлежит:

A fuel gas supply system in a ship is disclosed. According to an embodiment of the present invention, the fuel gas supply system in a ship comprises: a storage tank accommodating fuel gas composed of liquefied gas and evaporated gas; a liquefied gas supply line supplying the liquefied gas of the storage tank to an engine; an evaporated gas supply line supplying the evaporated gas of the storage tank to an engine; and a methane number control unit injecting evaporated gas passing through an evaporated gas supply line to the liquefied gas of the storage tank and spraying liquefied gas passing through a liquefied gas supply line to the evaporated gas of the storage tank to be mixed. COPYRIGHT KIPO 2016 ...

Подробнее
Номер записи: 6
13-02-2014 дата публикации

Valve assembly for high-pressure fluid reservoir

Номер: US20140041737A1
Автор: Daniel Lee Pifer, Ronald Sexton, Vaughn Mills
Принадлежит: Eaton Corp

A valve assembly is disclosed for controlling fluid flow between two reservoirs. The valve assembly includes a relief valve arranged inside the housing and configured to open a first fluid flow path when the first reservoir is above a first predetermined pressure value.

Подробнее
Номер записи: 7
21-01-2021 дата публикации

Valve Assembly for a Fuel Tank

Номер: US20210016656A1
Автор: Jens Donat, Markus Stephan, Sebastian Morgott, Werner Ruppert
Принадлежит: Alfmeier Praezision SE

A valve assembly for a fuel tank includes a housing with a tank connection and a filter connection to respectively connect the valve assembly to the fuel tank and to an active carbon filter. The tank connection and the filter connection are or can be fluidically connected through a vent duct. A main vent valve with a valve element in the vent duct closes the vent duct in a closing position and opens it in a releasing position. A pilot valve to open the main vent valve is or can be fluidically connected to a pressure chamber of the main vent valve or to an overflow area. The overflow area fluidically connects or can fluidically connect the tank connection or a tank-side vent duct and the filter connection or a filter-side vent duct. Three check valves are also included.

Подробнее
Номер записи: 8
17-04-2014 дата публикации

Vapor fuel processing apparatus

Номер: US20140102419A1
Автор: Hidetoshi Ooiwa, Takashi Senda
Принадлежит: Denso Corp

A canister absorbs evaporated fuel produced in a fuel tank and supplies the absorbed evaporated fuel to an engine. A sealing valve is equipped between the fuel tank and the canister. A detection unit detects a state of a lid of the fuel tank. An intention estimation unit estimates existence of a refueling intention according to an activity of a user. A release time period estimation unit estimates a release time period, which is needed to release a pressure in the fuel tank, according to a state of a vehicle. A manipulation control unit opens the sealing valve when the lid is opened. The manipulation control unit opens the sealing valve, even in a case where the lid is closed, on estimation that the refueling intention exists, and on determination that the estimated release time period is greater than a predetermined time period.

Подробнее
Номер записи: 9
16-01-2020 дата публикации

Vaporized-fuel treating apparatus

Номер: US20200018247A1
Автор: Masanobu SHINAGAWA, Shota Tsukamoto, Yoshihiko Honda
Принадлежит: Aisan Industry Co Ltd

A vaporized-fuel treating apparatus includes a pump part for controlling a flow of purge gas and a heating part for controlling driving of the pump part and for generating heat. At least a part of the heating part is placed to be exposed in an atmosphere passage. The pump part is either placed in the purge passage or arranged connecting to the purge passage.

Подробнее
Номер записи: 10
10-02-2022 дата публикации

FUEL TANK ISOLATION SOLENOID VALVE FOR VEHICLE

Номер: US20220042481A1
Автор: JEON Hyun Do, KIM Tac Koon, RYU Bu Yeol
Принадлежит:

A fuel tank isolation solenoid valve for a vehicle includes: a plunger disposed in the isolation solenoid valve to be vertically moved and has first vent holes for releasing overpressure or over-negative pressure; a valve body disposed in the isolation solenoid valve to be vertically moved and has second vent holes for releasing overpressure or over-negative pressure. 1. A fuel tank isolation solenoid valve for a vehicle , the fuel tank isolation solenoid valve comprising:an upper case;a bobbin mounted in the upper case;a coil wound around the bobbin;a core mounted in the bobbin, the core having therein a plunger passage that is open at a lower end thereof; a first passage configured to communicate with a fuel tank,', 'a second passage configured to communicate with a canister, and', 'a communication passage defined between the first passage and the second passage;, 'a lower case coupled to the upper case, the lower case includinga plunger having a lower open space formed therein and a plurality of first vent holes configured to allow the first passage to communicate with the lower open space, the plunger being disposed in the plunger passage and configured to vertically move;a main seal mounted on a lower surface of the plunger;a valve body disposed in the communication passage to be vertically moved and having a plurality of second vent holes, wherein the plurality of second vent holes are vertically formed through the valve body and are configured to allow the first passage to communicate with the second passage;a sealing plate mounted on the lower case at an outer circumference of the communication passage so as to be in airtight contact with both a lower surface of the main seal and an upper surface of the valve body;a first spring disposed between a lower surface of the core and a lower end of the plunger; anda second spring disposed between a lower surface of the valve body and a bottom surface of the communication passage.2. The fuel tank isolation solenoid ...

Подробнее
Номер записи: 11
09-02-2017 дата публикации

Tank sealing valve and evaporation fuel processing device including the same

Номер: US20170036532A1
Автор: Yuichiro Miura
Принадлежит: Denso Corp

A tank sealing valve arranged in a passage network through which a fluid flows between a fuel tank and a canister includes a first valve unit and a second valve unit. A first port and a second port of three ports included in an outer case body of the first valve unit are open toward a first chamber of two chambers divided by a diaphragm or a bellows of the first valve unit, and a third port of the three ports is open toward a second chamber of the two chambers. A valve body of the first valve unit includes a through passage penetrating a valve portion and a column portion of the valve body. The valve portion communicates with the first port and the second chamber through the through passage in a case where the first port is closed. The second valve unit opens and closes the third port.

Подробнее
Номер записи: 12
14-02-2019 дата публикации

CONTROLLER FOR INTERNAL COMBUSTION ENGINE AND METHOD FOR CONTROLLING INTERNAL COMBUSTION ENGINE

Номер: US20190048815A1
Автор: IKUTA Eiji, MYOJO Keiichi, NOSE Yuki
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A controller for an internal combustion engine includes processing circuitry that performs a dither control process on condition that a temperature increase request of a catalyst is made. The processing circuitry operates fuel injection valves so that during the dither control process, one or more cylinders are lean combustion cylinders in a first period and another one or more cylinders are rich combustion cylinders and so that the average value of an exhaust gas-fuel ratio is a target air-fuel ratio in a second period including the first period. The dither control process is restricted in a manner that, on condition that the rich process is performed, the degree of richening of the richest exhaust gas-fuel ratio of exhaust gas-fuel ratios in the cylinders is reduced. 1. A controller for an internal combustion engine , wherein the internal combustion engine includes a catalyst , configured to purify exhaust gas discharged from a plurality of cylinders , a plurality of fuel injection valves , respectively configured to supply fuel to the plurality of cylinders , a canister , configured to collect fuel vapor of fuel stored in a fuel tank , and an adjustment device , configured to adjust a flow rate of the fuel vapor collected by the canister flowing into an intake passage , the controller comprising:processing circuitry configured to perform a dither control process on condition that a temperature increase request of the catalyst is made, wherein the dither control process includes operating the fuel injection valves so that one or more of the plurality of cylinders is a lean combustion cylinder in which an air-fuel ratio is leaner than a stoichiometric air-fuel ratio and another one or more of the plurality of cylinders is a rich combustion cylinder in which the air-fuel ratio is richer than the stoichiometric air-fuel ratio, and a purge control process that operates the adjustment device to control a purge rate that is a value obtained by dividing a purge flow rate ...

Подробнее
Номер записи: 13
14-02-2019 дата публикации

VAPOR IMPERMEABLE SOLENOID FOR FUEL VAPOR ENVIRONMENT

Номер: US20190048829A1
Автор: Dayton Robert Andrew
Принадлежит: EATON CORPORATION

A vapor impermeable solenoid includes an outer housing fabricated from a vapor impermeable material configured to prevent fuel vapor molecules from passing therethrough; windings configured to generate a magnetic flux when energized, a flux collector configured to direct the magnetic flux, a pole piece, and a magnetic armature disposed within the housing and coupled to a seal configured to selectively seal a passage that allows fuel vapor to pass to a purge canister. The magnetic armature is configured to move from a first position to a second position when an electric current is applied to the windings. 1. A vapor impermeable solenoid for a fuel tank isolation valve assembly , the impermeable solenoid comprising:an outer housing fabricated from a vapor impermeable material configured to prevent fuel vapor molecules from passing therethrough;windings configured to generate a magnetic flux when energized;a flux collector configured to direct the magnetic flux;a pole piece;an armature tube disposed inboard of the flux collector and formed of magnetic material; anda magnetic armature disposed within the housing and coupled to a seal configured to selectively seal a passage that allows fuel vapor to pass to a purge canister, the magnetic armature configured to move from a first position to a second position when an electric current is applied to the windings.2. The vapor impermeable solenoid of claim 1 , wherein the first position is a sealed position preventing flow of the fuel vapor to the purge canister claim 1 , and the second position is an unsealed position allowing flow of the fuel vapor to the purge canister.3. The vapor impermeable solenoid of claim 1 , wherein the magnetic armature includes a first end having a generally frustoconical shape.4. The vapor impermeable solenoid of claim 3 , wherein the magnetic armature includes a second end having an arm extending therefrom claim 3 , and a seal coupled to the arm claim 3 , the seal configured to selectively block ...

Подробнее
Номер записи: 14
13-02-2020 дата публикации

PURGE CONTROL SOLENOID VALVE WITH NON-ADHESION COATING AT LOW TEMPERATURES AND METHOD FOR MANUFACTURING THE SAME

Номер: US20200049107A1
Автор: Lee Ahn Hee, Lee Du Seok, LEE Ji Hyun
Принадлежит:

A purge control solenoid valve includes a gas access body including an evaporation gas inlet, an evaporation gas outlet, and a path that connects the evaporation gas inlet and the evaporation gas outlet; a valve operation body including an armature coupled to the gas access body and performing a reciprocating motion in a direction in which the armature is brought into close contact with or separated from the path by a core that generates a magnetic force; and an armature top member being in close contact with or separated from the path due to the reciprocating motion of the armature to open or close the path. The armature top member has a non-adhesion coating formed on a top surface of a body thereof, and the non-adhesion coating includes a binder, graphite, polytetrafluoroethylene, and a crosslinking agent. 1. A purge control solenoid valve comprising:a gas access body including an evaporation gas inlet, an evaporation gas outlet, and a path that connects the evaporation gas inlet and the evaporation gas outlet;a valve operation body including an armature coupled to the gas access body, wherein the armature is configured to perform a reciprocating motion in a direction in which the armature is brought into close contact with or separated from the path by a core that generates a magnetic force; andan armature top member being in close contact with or separated from the path due to the reciprocating motion of the armature to open or close the path,wherein the armature top member includes a non-adhesion coating formed on a top surface of a body thereof, and the non-adhesion coating includes a binder, graphite, polytetrafluoroethylene, and a crosslinking agent.2. The purge control solenoid valve of claim 1 , wherein the non-adhesion coating is formed using a non-adhesion coating composition comprising claim 1 , by weight claim 1 , 25% to 80% binder claim 1 , 1% to 15% graphite claim 1 , 3% to 25% polytetrafluoroethylene claim 1 , 3% to 25% crosslinking agent claim 1 , ...

Подробнее
Номер записи: 15
10-03-2022 дата публикации

EVAPORATIVE FUEL VAPOR EMISSION CONTROL SYSTEMS

Номер: US20220074331A1
Автор: Hiltzik Laurence H., McCrae Peter D., Miller James R., Williams Roger S.
Принадлежит:

An evaporative emission control canister system comprises an initial adsorbent volume having an effective incremental adsorption capacity at 25° C. of greater than 35 grams n-butane/L between vapor concentration of 5 vol % and 50 vol % n-butane, and at least one subsequent adsorbent volume having an effective incremental adsorption capacity at 25° C. of less than 35 grams n-butane/L between vapor concentration of 5 vol % and 50 vol % n-butane, an effective butane working capacity (BWC) of less than 3 g/dL, and a g-total BWC of between 2 grams and 6 grams. The evaporative emission control canister system has a two-day diurnal breathing loss (DBL) emissions of no more than 20 mg at no more than 210 liters of purge applied after the 40 g/hr butane loading step. 1. An evaporative emission control canister system comprising:one or more canisters comprising:a fuel-side adsorbent volume having an effective incremental adsorption capacity at 25° C. of greater than 35 grams n-butane/L between vapor concentration of 5 vol % and 50 vol % n-butane; anda plurality of subsequent adsorbent volumes each having an effective incremental adsorption capacity at 25° C. of less than 35 grams n-butane/L between vapor concentration of 5 vol % and 50 vol % n-butane, wherein at least one of the subsequent adsorbent volumes has an effective butane working capacity (BWC) of 1.6-3 g/dL, andwherein the fuel-side adsorbent volume having an effective incremental adsorption capacity at 25° C. of greater than 35 grams n-butane/L between vapor concentration of 5 vol % and 50 vol % n-butane, and the at least one subsequent adsorbent volume are located within a single canister, or in separate canisters that are connected to permit sequential contact by fuel vapor.2. The canister system of claim 1 , wherein the at least one of the subsequent adsorbent volumes has a g-total BWC of 0.8-6 g claim 1 , and an effective butane working capacity (BWC) of 1.6-3 g/dL.3. The canister system of claim 2 , wherein ...

Подробнее
Номер записи: 16
10-03-2022 дата публикации

MAGNETICALLY LATCHING VALVE FOR FUEL VAPOR MANAGEMENT SYSTEMS AND SYSTEMS INCORPORATING SAME

Номер: US20220074370A1
Автор: GILMER Matthew C., III Donald P., LUCKA Kevin W., Miller James H., TINSLEY
Принадлежит: DAYCO IP HOLDINGS, LLC

Magnetic latching valves have a housing with first and second ports in controlled fluid communication with one another. Enclosed within the housing is a linearly translatable armature within a solenoid. The armature is movable between open and closed positions and is connected to a poppet valve. A permanent magnet is fixedly seated at a position for magnetically latching the armature in the open position, and a spring is seated with a first end against the poppet valve and a second end against the housing. The spring biases the poppet valve closed when the armature is in the closed position and has a pre-selected spring rate that mechanically relieves pressure if the spring rate is exceeded. The armature is moved to the open position after a pulse of voltage to the solenoid and is in an unpowered state thereafter. Vehicle fuel refueling system are disclosed that include a magnetic latching valve. 1. A magnetic latching valve of a vehicle engine comprising:{'claim-text': ['a linearly translatable armature seated within a solenoid and connected to a poppet valve; wherein the armature can move between an open position and a closed position, respectively, after a pulse of voltage to the solenoid;', 'a permanent magnet fixedly seated within the housing at a position for magnetically latching the armature in the open position after one pulse of voltage to the solenoid moves the armature to the open position; and', 'a spring seated around the connection of the armature to the poppet valve with a first end against the poppet valve and a second end against the housing; wherein the spring biases the poppet valve closed when the armature is in the closed position and has a pre-selected spring rate that mechanically relieves pressure if the spring rate is exceeded;'], '#text': 'a housing having a first port and a second port in controlled fluid communication with one another; wherein the housing encloses:'}wherein the armature is in an unpowered state after translation to ...

Подробнее
Номер записи: 17
21-02-2019 дата публикации

SYSTEMS AND METHODS FOR PREHEATING A FUEL VAPOR STORAGE CANISTER

Номер: US20190055905A1
Автор: Dudar Aed M.
Принадлежит:

Methods and systems are provided for preheating a fuel vapor storage canister in an evaporative emissions system prior to a vehicle start. In one example, a method may include learning common vehicle routes and identifying routes in which fuel vapor storage canister preheating is indicated, such as routes that will enable fuel vapors to be purged to an engine intake shortly after the vehicle start. Then, in anticipation of an identified route for fuel vapor storage canister preheating, a vehicle controller may be transitioned from a sleep mode to an awake mode prior to the vehicle start in order to commence a fuel vapor storage canister preheating routine. 18-. (canceled)9. An evaporative emissions method , comprising:setting a timer to wake a controller of a vehicle to preheat a fuel vapor storage canister prior to an anticipated vehicle key-on event that occurs after a first key-off event and before the controller transitions to a sleep mode; andnot setting the timer to preheat the fuel vapor storage canister after a second key-off event and before the controller transitions to the sleep mode.10. The method of claim 9 , wherein the timer is set for preheating the fuel vapor storage canister when an identified driving route for fuel vapor storage canister preheating is anticipated subsequent to the anticipated vehicle key-on event and when a fuel vapor load of the fuel vapor storage canister is greater than a threshold load claim 9 , and wherein the identified driving route is learned based on data gathered while the vehicle is driven.11. The method of claim 9 , wherein the timer is set for a determined duration prior to the anticipated vehicle key-on event.12. The method of claim 11 , further comprising: actuating a canister heating element coupled to the fuel vapor storage canister, the fuel vapor storage canister included in an evaporative emissions system in fluidic communication with a fuel system of the vehicle and an engine intake of the vehicle;', ' ...

Подробнее
Номер записи: 18
03-03-2016 дата публикации

CHAMBER FOR REDUCING OPERATING NOISE OF PURGE CONTROL SOLENOID VALVE FOR EVAPORATIVE EMISSION CONTROL SYSTEM

Номер: US20160061156A1
Автор: KIM Youngmin
Принадлежит:

A chamber for reducing operating noise of a purge control solenoid valve (PCSV) for an evaporative emission control system comprises a first housing into which operating noise of the PCSV enters. The first housing has an inner space to change a cross sectional area of an operating noise path or an operating noise transfer direction at least once. A second housing has an upper portion coupled to a lower portion of the first housing to transfer the operating noise outside. At least one end of the chamber in a length direction thereof is connected with a vapor hose which connects a canister collecting fuel evaporation gas generated from a fuel tank with the PCSV to deliver the fuel evaporation gas to an engine and through which the fuel evaporation gas flows. 1. A chamber for reducing operating noise of a purge control solenoid valve (PCSV) for an evaporative emission control system , the chamber comprising:a first housing into which the operating noise of the PCSV enters, the first housing having an inner space such that a cross sectional area of an operating noise transfer path or an operating noise transfer direction is changed at least once; anda second housing having an upper portion coupled to a lower portion of the first housing to transfer the operating noise to the outside,wherein at least one end of the chamber in a length direction thereof is connected with a vapor hose which connects a canister collecting fuel evaporation gas generated from a fuel tank with the PCSV to deliver the fuel evaporation gas to an engine and through which the fuel evaporation gas flows.2. The chamber of claim 1 , whereinthe operating noise transfer direction is opposite to a flow direction of the fuel evaporation gas.3. The chamber of claim 1 , wherein the first housing comprises:a column extending from an upper portion of a center of the first housing in a lower direction;a fixing hole formed from a lower end of the column in an upper direction; andat least one inlet hole formed ...

Подробнее
Номер записи: 19
01-03-2018 дата публикации

SYSTEMS AND METHODS FOR DIAGNOSING COMPONENTS IN A VEHICLE EVAPORATIVE EMISSIONS SYSTEM

Номер: US20180058384A1
Автор: Dudar Aed M.
Принадлежит:

Methods and systems are provided for conducting a canister purging operation and for rationalizing components of a vehicle evaporative emission system. In one example, after completion of a refueling event, a first fuel vapor canister purge operation is conducted to desorb hydrocarbon light ends from the fuel vapor canister, and subsequently the canister is heated to desorb hydrocarbon heavy ends from the canister, which are routed to a hydrocarbon sensor to rationalize the hydrocarbon sensor, before being purged to engine intake in a second purging operation. In this way, a fuel vapor storage canister may be thoroughly cleaned of hydrocarbon light ends and hydrocarbon heavy ends, while additionally indicating whether a canister heating element, and a hydrocarbon sensor positioned between the canister and atmosphere, are functioning as desired. 1. A method comprising:capturing and storing fuel vapors in a fuel vapor storage canister positioned in a vehicle evaporative emission system, the fuel vapor canister removably coupled to a fuel tank that provides fuel to an engine that propels the vehicle;actively routing fuel vapors from the fuel vapor canister into a vent line coupling the fuel vapor canister to atmosphere; anddiagnosing one or more evaporative emission system components responsive to the routing.2. The method of claim 1 , wherein actively routing fuel vapors from the fuel vapor canister into the vent line includes activation of a canister heating element coupled to and/or within the fuel vapor canister to promote desorption of fuel vapors stored in the fuel vapor canister.3. The method of claim 2 , wherein actively routing fuel vapors from the fuel vapor canister further comprises:sealing the fuel vapor canister from atmosphere, from an intake manifold of the engine, and from the fuel tank during activation of the canister heating element; andresponsive to the canister heating element being activated for a predetermined duration of time or until a ...

Подробнее
Номер записи: 20
01-03-2018 дата публикации

FUEL VAPOR PURGE SYSTEM

Номер: US20180058385A1
Автор: CHOI Choo Saeng
Принадлежит: HYUNDAI MOTOR COMPANY

A fuel vapor purge system may include a recirculation line that is branched from an intake line that supplies intake air to an engine to join to the intake line of the rear end portion of a compressor of a turbocharger; an ejector that is integrally formed with a recirculation valve housing that is disposed at a point in which the recirculation line and the intake line join; a first purge line that connects a canister and the intake line; and a second purge line that connects the canister and the ejector. 1. A fuel vapor purge system , comprising:a recirculation line that is branched from an intake line that supplies intake air to an engine to join to the intake line of the rear end portion of a compressor of a turbocharger;an ejector that is integrally formed with a recirculation valve housing that is positioned at a point in which the recirculation line and the intake line join;a first purge line that connects a canister and the intake line; anda second purge line that connects the canister and the ejector.2. The fuel vapor purge system of claim 1 , wherein the ejector includes:a trunk portion having a flow channel therein;a first inlet that fluidically-communicates with the flow channel and that fluidically-communicates with the intake line of the rear end portion of the compressor;a second inlet that fluidically-communicates with the flow channel and that fluidically-communicates with the second purge line; andan outlet that fluidically-communicates with the flow channel and that fluidically-communicates with the recirculation line.3. The fuel vapor purge system of claim 2 , wherein the first inlet and the outlet are located on a same axis along the flow channel claim 2 , andthe second inlet is located vertically to the flow channel.4. The fuel vapor purge system of claim 2 , wherein a cross-section of the fluid path increases as advancing to the outlet while decreasing from the first inlet according to fluid flow.5. The fuel vapor purge system of claim 1 , ...

Подробнее
Номер записи: 21
04-03-2021 дата публикации

PURGE CONTROL VALVE DEVICE

Номер: US20210062735A1
Автор: ASAKA Ryo, INOGUCHI Tetsunori, Kobayashi Yasunori, RI Younan
Принадлежит:

In a purge control valve device, a purge valve includes a first electromagnetic valve and a second electromagnetic valve which are provided inside a housing. The first electromagnetic valve has a first valve body that controls a flow rate of evaporative fuel flowing in the housing. The second electromagnetic valve has a second valve body that controls a flow rate of evaporative fuel flowing in the housing. The upstream passage and the downstream passage are arranged in series. The first electromagnetic valve switches a seated state and an unseated state of the first valve body. The purge valve has a narrowed passage in which a flow rate of the evaporative fuel is smaller in one of the seated state and the unseated state than in another of the seated state and the unseated state. 1. A purge control valve device comprising:an inflow port into which the evaporative fuel flowing out of a canister flows;an outlet port through which the evaporative fuel flows out toward an engine;a housing having an in-housing passage connecting the inflow port and the outflow port;a first electromagnetic valve provided inside the housing and having a first valve body opening and closing a first internal passage included in the in-housing passage to control a flow rate of the evaporative fuel; anda second electromagnetic valve provided inside the housing and having a second valve body opening and closing a second internal passage included in the in-housing passage to control a flow rate of the evaporative fuel, whereinthe first internal passage and the second internal passage are arranged in series in the in-housing passage,the first electromagnetic valve and the second electromagnetic valve are controlled to operate individually, andthe first electromagnetic valve is switched between a seated state in which the first valve body contacts a first valve seat and an unseated state in which the first valve body is separated from the first valve seat,the purge control valve device further ...

Подробнее
Номер записи: 22
04-03-2021 дата публикации

EVAPORATED FUEL TREATMENT APPARATUS

Номер: US20210062739A1
Автор: Miyabe Yoshikazu, SHINAGAWA Masanobu
Принадлежит: AISAN KOGYO KABUSHIKI KAISHA

An evaporated fuel treatment apparatus includes a partition wall for dividing the inside of a canister into a first region located close to a purge passage and a fuel tank and a second region located close to an atmosphere passage, an electromagnetic valve provided in the partition wall and configured to open and close between the first and second regions, a small hole provided in the partition wall to release the pressure between the first and second regions, and a determination unit for performing a leak determination of the apparatus and a failure determination of a purge valve and the electromagnetic valve based on behaviors of the internal pressure of the canister according to opening and closing operations of the electromagnetic valve. 1. An evaporated fuel treatment apparatus comprising:a canister connected to a fuel tank and provided with a plurality of adsorption layers for adsorbing evaporated fuel generated in the fuel tank;a purge passage configured to allow purge gas containing the evaporated fuel to flow from the canister to an engine;a purge valve configured to open and close the purge passage;an atmosphere passage configured to take atmospheric air into the canister;a controller configured to perform purge control by placing the purge valve in an open state to introduce the purge gas from the canister into the engine through the purge passage;a partition wall dividing an inside of the canister into a first region located close to the purge passage and the fuel tank and a second region located close to the atmosphere passage;an electromagnetic valve provided in the partition wall and configured to open and close between the first region and the second region;a relief part provided in the partition wall and configured to release pressure between the first region and the second region; anda determination unit configured to perform a leak determination of the apparatus and a failure determination of the purge valve and the electromagnetic valve based on ...

Подробнее
Номер записи: 23
04-03-2021 дата публикации

Engine device

Номер: US20210062767A1
Автор: Hiromichi Yasuda
Принадлежит: Toyota Motor Corp

An engine device is provided with a fuel vapor processor comprising a first supply pipe configured to supply a vaporized fuel gas including fuel vapor generated in a fuel tank, to a downstream side of a compressor in an intake pipe; a first valve provided in the first supply pipe; a second supply pipe configured to supply the vaporized fuel gas to an upstream side of the compressor in the intake pipe; and a second valve provided in the second supply pipe. When a supercharger operates and the first valve is closed, the engine device performs abnormality diagnosis of the second valve, based on a control state of the second valve and a pressure in the fuel tank.

Подробнее
Номер записи: 24
17-03-2022 дата публикации

FUEL TANK ISOLATION VALVE

Номер: US20220082057A1
Автор: Biehl Andrew, Petri Dominic
Принадлежит: TLX Technologies, LLC

A fuel tank isolation valve (FTIV) and methods of operation are provided. The FTIV includes first and second solenoid valves with the movable valve member of one of the solenoid valves seating against a movable valve member of the other one of the solenoid valves. One of the solenoid valves may be refueling valve allowing for evacuation of fuel vapor during refueling operations as well as to allow for purging high vapor pressure within the fuel tank. One of the solenoid valves may be a proportional valve used to control the flow of fuel vapor to an intake manifold of an operating internal combustion engine as well as to reduce a vacuum generated within the fuel tank. 1. A fuel tank isolation valve comprising:a valve body defining an inlet, an outlet and a flow path between the inlet and outlet;a first valve seat located within the flow path between the inlet and outlet;a first solenoid valve having a first valve member that is configured to seat on the first valve seat, the first solenoid valve having a first armature operably connected to the first valve member for imparting movement to the first valve member between a seated position and unseated position relative to the first valve seat, the first valve member defining a first aperture therethrough and a second valve seat surrounding the first aperture; anda second solenoid valve having a second valve member that is configured to seat on the second valve seat, the second solenoid valve having a second armature operably connected to the second valve member for imparting movement to the second valve member between a seated position and unseated position relative to the second valve seat.2. The fuel tank isolation valve of claim 1 , wherein the second solenoid valve is a proportional valve.3. The fuel tank isolation valve of claim 1 , wherein the first and second armatures move along first and second axes claim 1 , respectively claim 1 , that are parallel or coaxial to one another.4. The fuel tank isolation valve of ...

Подробнее
Номер записи: 25
17-03-2016 дата публикации

VAPORIZED FUEL PROCESSING APPARATUS

Номер: US20160076490A1
Автор: Kimoto Junya, Makino Katsuhiko
Принадлежит: AISAN KOGYO KABUSHIKI KAISHA

A vaporized fuel processing apparatus has a casing defining an adsorption chamber therein and having a tank port, a purge port, and an atmospheric port. The tank port is connected to a fuel tank. The purge port is connected to an internal combustion engine. The atmospheric port is open to the atmosphere. A heater is disposed between the adsorption chamber and the atmospheric port and has a fin heat exchanger and a heating element. The heating element is configured to generate heat by electricity supply. The fin heat exchanger is joined to the heating element. The surface area of the fin heat exchanger between the heating element and the adsorption chamber is larger than the surface area of the fin heat exchanger between the heating element and the atmospheric port. 1. A vaporized fuel processing apparatus comprising:a casing defining an adsorption chamber therein and having a tank port, a purge port, and an atmospheric port, the tank port being connected to a fuel tank, the purge port being connected to an internal combustion engine, and the atmospheric port being open to the atmosphere; anda heater disposed between the adsorption chamber and the atmospheric port, wherein the heater includes a fin heat exchanger and a heating element, the heating element being configured to generate heat by electricity supply, and the fin heat exchanger being joined to the heating element;wherein a surface area of the fin heat exchanger between the heating element and the adsorption chamber is larger than a surface area of the fin heat exchanger between the heating element and the atmospheric port.2. The vaporized fuel processing apparatus according to claim 1 ,wherein the fin heat exchanger extends only between the heating element and the adsorption chamber.3. The vaporized fuel processing apparatus according to claim 1 ,wherein the adsorption chamber is divided into a plurality of compartments including a first compartment facing the atmospheric port; andwherein a first adsorbent ...

Подробнее
Номер записи: 26
05-03-2020 дата публикации

VALVE DEVICE

Номер: US20200072165A1
Автор: UCHIDA Kimio
Принадлежит:

A valve device has a valve housing, a valve member, a guide member and a valve control unit. A center axis of a vapor outlet pipe is defined as a passage axis of a vapor outlet passage. A cross section of the vapor outlet pipe on a plane perpendicular to an axial direction of the vapor outlet pipe is defined as an outlet-pipe cross section. An area of the outlet-pipe cross section is defined as an outlet passage area. An overlapping area, in which the outlet-pipe cross section overlaps with an outlet-nearest wall portion, is formed when viewed them in the axial direction of the vapor outlet pipe and when the outlet-pipe cross section is projected on the outlet-nearest wall portion. The valve housing and the guide member are so formed that the overlapping area is smaller than a half of the outlet passage area. 1. A valve device comprising;a valve housing formed in a cylindrical shape and having;(1a) a vapor inlet passage through which fluid flows into an inside of the valve housing;(1b) a vapor outlet pipe including a vapor outlet passage, which extends in a radial direction perpendicular to an axial direction of the vapor inlet passage and through which the fluid from the vapor inlet passage flows to an outside of the valve housing;(1c) a valve inside passage formed in the inside of the valve housing and operatively communicated to each of the vapor inlet passage and the vapor outlet passage;(1d) a valve seat portion formed in an inner wall of a housing bottom portion, which is formed on an axial side of valve housing connected to the vapor inlet passage;a valve member movably accommodated in the valve housing for blocking off fluid flow through the valve inside passage when the valve member is brought into contact with the valve seat portion, the fluid being allowed to flow from the vapor inlet passage to the vapor outlet passage through the valve inside passage when the valve member is separated from the valve seat portion in the axial direction;a guide member ...

Подробнее
Номер записи: 27
22-03-2018 дата публикации

SYSTEMS AND METHODS FOR PURGING A FUEL VAPOR CANISTER

Номер: US20180080417A1
Автор: Dudar Aed M.
Принадлежит:

A method for an engine is presented, wherein during a first condition, pressurized gas from an engine coolant degas bottle to an ejector positioned in a vent line coupled to a fuel vapor canister; and the contents of the fuel vapor canister are purged to an engine intake. The ejector may draw atmospheric air into the fuel vapor canister, thus enabling purging of the fuel vapor canister even when an engine intake vacuum is below a threshold. In this way, boosted engines and other engines configured to operate with reduced intake vacuum may execute canister purging events that are independent of engine intake pressure. 19-. (canceled)10. An engine system , comprising:an ejector coupled between a fuel vapor canister fresh air port and atmosphere; anda pressurized gas source selectively coupled to an inlet of the ejector.11. The engine system of claim 10 , wherein the pressurized gas source is an engine coolant degas bottle.12. The engine system of claim 11 , further comprising:a degas routing line coupled between the engine coolant degas bottle and the inlet of the ejector; anda degas bottle routing valve deposed in the degas routing line, the degas bottle routing valve selectively operable to permit flow of pressurized gas between the engine coolant degas bottle and the inlet of the ejector.13. The engine system of claim 12 , further comprising:a filter deposed within the degas routing line between the engine coolant degas bottle and the degas bottle routing valve.14. The engine system of claim 12 , further comprising:a liquid fluid trap coupled to the degas routing line between the engine coolant degas bottle and the degas bottle routing valve.15. The engine system of claim 10 , further comprising:a canister vent line coupled between the fuel vapor canister fresh air port and atmosphere; anda canister vent valve deposed within the canister vent line, and wherein the ejector is coupled to the canister vent line between the fuel vapor canister fresh air port and the ...

Подробнее
Номер записи: 28
02-04-2015 дата публикации

Hybrid vehicle fuel vapor canister

Номер: US20150090233A1
Автор: Aed M. Dudar, Dennis Seung-Man Yang
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

Embodiments for controlling fuel vapors are provided. In one example, a method comprises initiating a purge of a fuel vapor canister responsive to a temperature profile at a vent side of the fuel vapor canister. In this way, release of fuel vapors to the atmosphere may be reduced.

Подробнее
Номер записи: 29
25-03-2021 дата публикации

VAPOR IMPERMEABLE SOLENOID FOR FUEL VAPOR ENVIRONMENT

Номер: US20210088005A1
Автор: Dayton Robert Andrew
Принадлежит: Eaton Intelligent Power Limited

A vapor impermeable solenoid for a fuel tank isolation valve assembly an outer housing defining an inner cavity, windings configured to generate a magnetic flux when energized, and a flux collector configured to direct the magnetic flux. An armature tube is disposed within the inner cavity inboard of the flux collector and formed of a magnetic and vapor impermeable material configured to prevent fuel vapor molecules from passing therethrough. A pole piece is disposed within the armature tube, and a magnetic armature is disposed within the armature tube and operably coupled to a seal configured to selectively seal a passage that allows fuel vapor to pass to a purge canister. The magnetic armature is configured to move from a first position to a second position when an electric current is applied to the windings. 1. A vapor impermeable solenoid for a fuel tank isolation valve assembly , the vapor impermeable solenoid comprising:an outer housing defining an inner cavity;windings configured to generate a magnetic flux when energized;a flux collector configured to direct the magnetic flux;an armature tube disposed within the inner cavity inboard of the flux collector and formed of a magnetic and vapor impermeable material configured to prevent fuel vapor molecules from passing therethrough;a pole piece disposed within the armature tube; anda magnetic armature disposed within the armature tube and operably coupled to a seal configured to selectively seal a passage that allows fuel vapor to pass to a purge canister, the magnetic armature configured to move from a first position to a second position when an electric current is applied to the windings.2. The vapor impermeable solenoid of claim 1 , further comprising an O-ring disposed in a groove formed in an outer surface of the armature tube.3. The vapor impermeable solenoid of claim 2 , wherein the armature tube includes a flange to bound a first side of the O-ring.4. The vapor impermeable solenoid of claim 3 , further ...

Подробнее
Номер записи: 30
09-04-2015 дата публикации

FAILURE DETERMINATION DEVICES FOR FUEL VAPOR PROCESSING SYSTEMS

Номер: US20150096355A1
Автор: AKITA Minoru, Makino Katsuhiko, SHINAGAWA Masanobu, Yoshioka Mamoru
Принадлежит: AISAN KOGYO KABUSHIKI KAISHA

A failure detecting device for a fuel vapor processing system may include a leakage determination device configured to determine leakage of fuel vapor from a target region of the fuel vapor processing system. The leakage determination device may include a canister closed valve provided in an atmospheric passage connected between a canister and an atmosphere. The canister closed valve may switch between an open position and a closed upon receiving a supply of electric power, and may maintain the open position or the closed position when no electric power is received. 1. A failure detecting device for a fuel vapor processing system including a fuel tank and a canister , the failure detecting device comprising:a pressure detecting device configured to detect a pressure within a target region of the fuel vapor processing system;a closing device configured to close the target region; and the closing device comprises a canister closed valve provided in an atmospheric passage that connects the canister to an atmosphere; and', 'the canister closed valve is configured to switch between an open position and a closed position upon receiving a supply of electric power, and to maintain the open position or the closed position when no electric power is supplied to the canister closed valve., 'a leakage determination device configured to determine leakage of fuel vapor from the target region based on a change of pressure within the target region in a closed state of the target region; wherein2. The failure detecting device according to claim 1 , further comprising a fuel temperature detecting device configured to detect a temperature of a fuel within the fuel tank claim 1 , wherein the leakage determination device is configured to determine leakage of fuel vapor from the target region based on a change of temperature of the fuel in addition to the change of pressure within the target region.3. The failure determining device according to claim 1 , wherein:the fuel vapor processing ...

Подробнее
Номер записи: 31
09-04-2015 дата публикации

VALVE ASSEMBLY

Номер: US20150096633A1
Автор: Mills Vaughn, Pifer Daniel Lee, Sexton Ronald
Принадлежит:

An angle flow valve comprises a housing and a cover. The housing comprises a first recess for receiving a flow restrictor, a second recess for receiving a relief valve, a first port fluidly connected to the first recess, an angled flow path fluidly connected to the first recess and to the second recess, a second port fluidly connected to the angled flow path, and a relief passage between the first recess and the second recess. The first recess is parallel to the second recess, permitting drop-in assembly of the flow restrictor and relief valve. The cover comprises a solenoid assembly, and the cover couples to the housing by adjoining the solenoid against the flow restrictor and by adjoining the cover against the relief valve. A single o-ring seals the leak path between the cover and the housing. 1. An angle flow valve comprising: a first recess for receiving a flow restrictor;', 'a second recess for receiving a relief valve;', 'a first port fluidly connected to the first recess;', 'an angled flow path fluidly connected to the first recess and to the second recess;', 'a second port fluidly connected to the angled flow path; and', 'a relief passage between the first recess and the second recess,, 'a housing, the housing comprisingwherein the first recess is parallel to the second recess.2. The angle flow valve of claim 1 , wherein fluid flow is selectable between two flow paths:a first flow path of the two flow paths is bidirectionally from the first port, through the first recess, through the angled flow path to the second port; anda second flow path of the two flow paths is from the first port, through the first recess, through the relief passage, through the second recess, through the angled flow path to the second port.3. The angle flow valve of claim 2 , further comprising the flow restrictor claim 2 , the flow restrictor comprising a first movable piston comprising a first seal with a first passage.4. The angle flow valve of claim 3 , wherein the first recess ...

Подробнее
Номер записи: 32
01-04-2021 дата публикации

Leakage Detector For Fuel Vapor Treatment Device

Номер: US20210095620A1
Автор: Ito Yuzuru
Принадлежит: AISAN KOGYO KABUSHIKI KAISHA

A leakage detector for a fuel vapor treatment device includes a control unit. The control unit shifts a purge control valve and a shutoff valve to a first state with the purge control valve is an opened position and the shutoff valve in a closed position, and then shifts the purge control valve and the shutoff valve to a second state with the purge control valve is a closed position and the shutoff valve in a closed position. The control unit compares a first purge passage pressure acquired from the purge passage pressure detector when the purge control valve and the shutoff valve were shifted to the second state with a second purge passage pressure acquired from the purge passage pressure detector after a lapse of a first waiting time after being shifting to the second state. This comparison is used to determine leakage in the purge passage. 1. A leakage detector for a fuel vapor treatment device , comprising:a canister including a purge port;a purge passage connecting the purge port of the canister and an intake passage;a shutoff valve disposed along the purge passage, wherein the shutoff valve has an opened position and a closed position;a purge control valve disposed along the purge passage between the intake passage and the shutoff valve, wherein the purge control valve has an opened position and a closed position;a purge passage pressure detector disposed along the purge passage between the shutoff valve and the purge control valve; and the control unit is configured to shift the purge control valve and the shutoff valve to a first state with the purge control valve in the opened position and the shutoff valve in the closed position;', 'the control unit is configured to shift the purge control valve and the shutoff valve from the first state to a second state with the shutoff valve in the closed position and the purge control valve in the closed position;', 'the control unit is configured to compare a first purge passage pressure acquired from the purge ...

Подробнее
Номер записи: 33
16-04-2015 дата публикации

LATCHING CANISTER VENT VALVE

Номер: US20150101577A1
Автор: Balsdon David William, Woods Brian Gordon
Принадлежит:

A purge vapor system, which includes a fuel tank, a fuel tank isolation valve in fluid communication with the fuel tank, and a carbon canister in fluid communication with the fuel tank isolation valve. The purge vapor system also includes a canister vent valve in fluid communication with the carbon canister, an air filter in fluid communication with the canister vent valve, and a latching mechanism for changing the canister vent valve between an open position and a closed position, where the latching mechanism is part of the canister vent valve. The latching mechanism is energized as the latching mechanism changes the canister vent valve between the open position and the closed position, and the latching mechanism is de-energized as the canister vent valve is held in the open position or the closed position. 1. An apparatus , comprising: a carbon canister;', 'a canister vent valve in fluid communication with the carbon canister; and', 'a latching mechanism for changing the canister vent valve between an open position and a closed position, the latching mechanism being part of the canister vent valve;', 'wherein the latching mechanism is energized as the canister vent valve is changed between the open position and the closed position, and the latching mechanism is de-energized when the canister vent valve is held in the open position or held in the closed position., 'a vapor purge system, including2. The apparatus of claim 1 , the canister vent valve further comprising:a valve connected to the latching mechanism; anda valve seat;wherein the valve in contact with the valve seat when the canister vent valve is in the closed position, and the valve is moved away from the valve seat when the canister vent valve is in the open position.3. The apparatus of claim 2 , the canister vent valve further comprising:an overmold assembly;a reservoir connected to the overmold assembly;an overmold assembly cavity formed as part of the overmold assembly; anda reservoir cavity formed ...

Подробнее
Номер записи: 34
16-04-2015 дата публикации

Integrated pressure transducer in a latching valve

Номер: US20150101677A1
Автор: Brian Gordon Woods, David William Balsdon
Принадлежит: Continental Automotive Systems Inc

A vapor purge system having a tank isolation valve and a canister vent valve, where each valve includes a latching mechanism for maintaining the valves in an open position, and a diagnostic test is performed on the purge system to prove that each of the valves are functioning correctly. Using latching valves in these applications reduces electricity draw from the battery and reduces electrical interference with integrated pressure sensors. The fuel tank is sealed by the tank isolation valve between the fuel tank and a vapor storage canister, and the canister vent valve provides sealing between the canister and the atmosphere, and controls venting of the canister. The diagnostic test is performed using the tank isolation valve and the canister vent valve under different operating conditions.

Подробнее
Номер записи: 35
16-04-2015 дата публикации

Latching mechanism for a fuel tank isolation valve assembly

Номер: US20150102039A1
Автор: Brian Gordon Woods, David William Balsdon
Принадлежит: Continental Automotive Systems Inc

A vapor purge system having a tank isolation valve and a canister vent valve, where each valve includes a latching mechanism for maintaining the valves in an open position. A diagnostic test is performed on the purge system to prove that each of the valves are functioning correctly. Using latching valves in these applications reduces electricity draw from the battery and reduces electrical interference with integrated pressure sensors. The fuel tank is sealed by the tank isolation valve between the fuel tank and a vapor storage canister, and the canister vent valve provides sealing between the canister and the atmosphere, and controls venting of the canister. The tank isolation valve reduces power consumption from the battery, while the valve is being held in either an open position or a closed position by the latching mechanism, and uses only a single pulse of voltage to change the state of the valve.

Подробнее
Номер записи: 36
23-04-2015 дата публикации

HEAT STORAGE MEMBER FOR CANISTER

Номер: US20150107561A1
Автор: Makino Katsuhiko
Принадлежит: AISAN KOGYO KABUSHIKI KAISHA

A heat storage member housed in a canister together with an adsorbent capable of adsorbing fuel vapor has a sealed container and a phase-change material housed in the sealed container. The phase-change material becomes semisolid gel state at the melting point of the phase-change material. The phase-change material is disposed along an entire inner surface of the sealed container such that a space capable of compensating for volume alteration of the phase-change material caused by phase-change is formed at a center of an inner space of the sealed container. 1. A heat storage member housed in a canister together with an adsorbent capable of adsorbing fuel vapor , comprising:a sealed container; anda phase-change material housed in the sealed container, the phase-change material becoming semisolid gel state at the melting point of the phase-change material, and the phase-change material being disposed along an entire inner surface of the sealed container such that a space capable of compensating for volume alteration of the phase-change material caused by phase-change is formed at a center of an inner space of the sealed container.2. The heat storage member according to claim 1 , wherein the phase-change material contains a gelator and at least one of C15-C18 paraffinic hydrocarbons.3. The heat storage member according to claim 2 , wherein the gelator is olefin elastomer. This application claims priority to Japanese patent application serial number 2013-216280, filed Oct. 17, 2013, the contents of which are incorporated herein by reference in their entirety for all purposes.This disclosure relates to heat storage members for canisters. The heat storage members and phase-change material are housed in the canister configured to adsorb fuel vapor, which has vaporized in a fuel tank. The phase-change materials decrease temperature alteration in the canister by using latent heat generated during solidification or melting.Japanese Laid-Open Patent Publication No. 2009-215938 ...

Подробнее
Номер записи: 37
04-04-2019 дата публикации

EVAPORATED FUEL PROCESSING DEVICE

Номер: US20190101082A1
Автор: KATO Nobuhiro, Sanuma Daisaku
Принадлежит:

An evaporated fuel processing device including a purge passage through which a purge gas sent from a canister to an intake passage passes, a pump sending the purge gas to the intake passage, a control valve switching between a communication state and a cutoff state, a branch passage branching from the purge passage at an upstream end and joining the purge passage at a downstream end, a pressure specifying unit comprising a small diameter portion disposed on the branch passage, and specifying a pressure difference of the purge gas passing through the small diameter portion between an upstream side and a downstream side, and an estimation unit estimating a flow rate of the purge gas sent from the pump by using an evaporated fuel concentration in the purge gas that is estimated using an air-fuel ratio and the pressure difference. 1. An evaporated fuel processing device mounted on a vehicle , the evaporated fuel processing device comprising:a canister configured to adsorb fuel evaporated in a fuel tank;a purge passage connected between the canister and an intake passage of an engine, and through which a purge gas sent from the canister to the intake passage passes;a pump configured to send the purge gas from the canister to the intake passage;a control valve disposed on the purge passage and configured to switch between a communication state and a cutoff state, the communication state being a state where the canister and the intake passage communicate through the purge passage, and the cutoff state being a state where the canister and the intake passage are cut off on the purge passage;a branch passage branching from the purge passage at an upstream end of the branch passage and joining the purge passage at a downstream end of the branch passage, the downstream end of the branch passage being located at different position from the upstream end of the branch passage;a pressure specifying unit comprising a small diameter portion disposed on the branch passage and through ...

Подробнее
Номер записи: 38
19-04-2018 дата публикации

FUEL EVAPORATIVE EMISSION CONTROL DEVICE

Номер: US20180106203A1
Автор: KUNII Kenichi, WAKAMATSU Atsushi
Принадлежит: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA

A fuel evaporative emission control device including an electronic control unit that, when fuel tank inner pressure exceeds a first predetermined pressure, performs tank purge of closing a bypass valve and opening a sealing valve, discharging fuel evaporative gas inside the fuel tank into an air intake path of an engine in an operated state through a purge pipe and a vapor pipe, and treating the fuel evaporative gas, where, when tank purge is performed, if a first predetermined period of time passes after closing of the bypass valve without the fuel tank inner pressure falling to or below the first predetermined pressure, the sealing valve is closed and tank purge is stopped. 1. A fuel evaporative emission control device of a vehicle , comprising:a communication path that communicates between an air intake path of an internal combustion engine of the vehicle and a fuel tank;a canister that is connected to the communication path, and that absorbs fuel evaporative gas in the communication path;a canister opening/closing valve that opens and closes communication between the communication path and the canister;a sealing valve that serves as a normally closed valve for opening and closing the communication path between the fuel tank and the canister;a tank pressure detection unit that detects inner pressure of the fuel tank;a tank purge control unit that, when the inner pressure of the fuel tank exceeds a first predetermined pressure, performs tank purge of closing the canister opening/closing valve and opening the sealing valve, introducing fuel evaporative gas inside the fuel tank into the air intake path of the internal combustion engine in an operated state through the communication path, and treating the fuel evaporative gas; anda tank purge restriction unit that, when the tank purge is performed, stops the tank purge by closing the sealing valve, based on an operation state of the canister opening/closing valve,wherein in a case where an open command for the ...

Подробнее
Номер записи: 39
20-04-2017 дата публикации

FUEL VAPOR RECOVERY

Номер: US20170107954A1
Автор: Kopinsky Joel
Принадлежит:

Fuel vapor emissions from a fuel tank directed to a canister containing adsorbent are minimized by an intermediate condenser and conduit configuration. Condensing and cooling fuel vapor emissions allows a reduction in canister capacity, where the canister can still meet and accommodate refueling and/or diurnal emissions control requirements. Pressurized and unpressurized fuel tanks for various vehicles, including vehicles with an internal combustion engine and hybrid electric vehicles, can be configured with the present fuel vapor recovery systems. 1. A fuel vapor recovery system comprising:a fuel tank;a canister including an adsorbent;a conduit fluidly coupling the fuel tank and the canister; anda condenser configured to cool a portion of a fluid in the conduit;wherein the fuel vapor recovery system is configured to direct a flow of the fluid in the conduit from the fuel tank to the canister, including the portion of the fluid in the conduit cooled by the condenser.2. The fuel vapor recovery system of claim 1 , wherein the fuel tank is a pressurized fuel tank.3. The fuel vapor recovery system of claim 1 , wherein the adsorbent includes activated carbon.4. The fuel vapor recovery system of claim 1 , wherein the conduit is configured to direct a condensed fluid to the fuel tank by gravity claim 1 , the condensed fluid arising in the portion of the fluid in the conduit that is cooled by the condenser.5. The fuel vapor recovery system of claim 1 , wherein the condenser is configured to operate by thermoelectric cooling.6. The fuel vapor recovery system of claim 1 , wherein the condenser is actuated by an electrical signal.7. The fuel vapor recovery system of claim 1 , wherein the portion of the fluid in the conduit that is cooled by the condenser follows a tortuous path.8. The fuel vapor recovery system of claim 1 , further comprising a valve configured to control movement of the fluid through the conduit.9. The fuel vapor recovery system of claim 1 , further ...

Подробнее
Номер записи: 40
07-05-2015 дата публикации

METHOD AND SYSTEM FOR ADJUSTING A FUEL TANK ISOLATION VALVE

Номер: US20150122229A1
Автор: Aitken Brian Thomas, Dudar Aed M., Jentz Robert Roy, JR. Robert, Ognjanovski, Yang Dennis Seung-Man
Принадлежит:

Methods and systems are provided for adjusting and diagnosing a position of a fuel tank isolation valve (FTIV) of a fuel system. In one example, a method comprises adjusting a FTIV of a fuel system by sending an electrical pulse to the FTIV; and comparing a current draw of the FTIV to a known current draw profile to verify the position of the FTIV. In this way, the position of the FTIV may be diagnosed, thereby resulting in increased accuracy of subsequent valve control. 1. An engine method , comprising:adjusting a fuel tank isolation valve (FTIV) of a fuel system by sending an electrical pulse to the FTIV; andcomparing a current draw of the FTIV to a known current draw profile to verify the position of the FTIV.2. The method of claim 1 , wherein the known current draw profile is an open current draw profile and the position of the FTIV is open when the current draw of the FTIV matches the open current draw profile.3. The method of claim 2 , wherein the open current draw profile includes a current draw peak indicating the FTIV is moving from a closed valve position to an intermediate valve position and a subsequent current draw plateau indicating the FTIV is held in the intermediate valve position claim 2 , the current draw peak and the subsequent current draw plateau occurring within the duration of the electrical pulse.4. The method of claim 1 , wherein the known current draw profile is a closed current draw profile and the position of the FTIV is closed when the current draw of the FTIV matches the closed current draw profile.5. The method of claim 4 , wherein the closed current draw profile includes a current draw plateau occurring within the duration of the electrical pulse.6. The method of claim 1 , further comprising adjusting the FTIV by sending the electrical pulse to the FTIV in response to one or more of the position of the FTIV being unknown claim 1 , a duration since a last FTIV position diagnosis claim 1 , or the position of the FTIV being invalidated. ...

Подробнее
Номер записи: 41
07-05-2015 дата публикации

LIQUID VAPOR SEPARATOR DRAIN VALVE

Номер: US20150122347A1
Автор: Hurley Darrin W., Marlow George J.
Принадлежит:

A liquid vapor separator drain valve includes an outer housing defining upper and lower chambers separated by a divider. An upper housing coupled to the outer housing partitions the upper chamber into inner and outer chambers and defines an upper port for communication with a carbon canister. The outer housing defines an external port in communication with the outer chamber and for communicating with a fill limit valve. Upper and lower valves are positioned in the respective upper and lower chambers such that the valves and upper and lower chambers are arranged in a vertically stacked, concentric manner. The lower valve vents fuel vapor to the upper chamber in a rest position and seals a divider vent passage when liquid fuel reaches a lower threshold. The upper valve vents fuel vapor to the upper port and seals the upper port when liquid fuel reaches an upper threshold. 1. A liquid vapor separator drain valve (LVSDV) assembly for a fuel tank of a vehicle , comprising: an outer housing defining upper and lower chambers separated by a divider member having a vent passage;', 'an upper housing coupled to the outer housing and having a body positioned in the upper chamber thereby partitioning the upper chamber into an outer chamber and an inner chamber, the upper housing defining an upper port adapted to be in communication with a carbon canister, the outer housing defining an external port in communication with the outer chamber and adapted to be in communication with a fill limit vapor valve; and', 'a lower valve movably positioned in the lower chamber and an upper valve movably positioned in the inner chamber, wherein the upper and lower chambers and the upper and lower valves are positioned in a vertically stacked, concentric arrangement;', 'wherein the lower valve is operable to vent fuel vapor from the fuel tank to the upper chamber in a rest position and seal off the vent passage when liquid fuel reaches a lower predetermined level, and the upper valve is operable ...

Подробнее
Номер записи: 42
05-05-2016 дата публикации

METHOD FOR CONTROLLING ENGINE OF VEHICLE

Номер: US20160123279A1
Автор: Byun Jung Sup, Park Seong Kyu
Принадлежит: HYUNDAI MOTOR COMPANY

A method for controlling an engine for a vehicle may include determining, by a controller, whether a symptom of an electrical failure where an opening state of a Purge Control Solenoid Valve (PCSV) is settled is sensed, increasing, by the controller, a failure sensing counter to a first reference value according to a state where the symptom of the electrical failure of the PCSV has been sensed is kept as a result of performing the failure sensing, and compensating, by the controller, a rotation number of the engine to increase the rotation number of the engine when the failure sensing counter exceeds the first reference value as a result of performing the counter increasing. 1. A method for controlling an engine for a vehicle , comprising:determining, by a controller, whether a symptom of an electrical failure where an opening state of a Purge Control Solenoid Valve (PCSV) is settled is sensed;increasing, by the controller, a failure sensing counter to a first reference value according to a state where the symptom of the electrical failure of the PCSV has been sensed is kept as a result of performing a failure sensing; andcompensating, by the controller, a rotation number of the engine to increase the rotation number of the engine when the failure sensing counter exceeds the first reference value as a result of performing the counter increasing.2. The method for controlling the engine for the vehicle of claim 1 , wherein the first reference value is set to be smaller than a second reference value for determining the electrical failure of the PCSV.3. The method for controlling the engine for the vehicle of claim 2 , wherein the first reference value is set as a predetermined level to which the failure sensing counter reaches before a start of the engine is turned-off due to a settlement of the opening state of the PCSV.4. The method for controlling the engine for the vehicle of claim 1 , wherein a target rotation number of the engine is increased to a predetermined ...

Подробнее
Номер записи: 43
03-05-2018 дата публикации

FUEL TANK PRESSURE REGULATOR

Номер: US20180119650A1
Автор: Anderson John Brian, Brock Michael S., YOUNG Kevin L.
Принадлежит:

A venting apparatus is provided for regulating discharge of fuel vapor from a fuel tank and admission of outside air into the fuel tank. 1. A tank venting system comprisinga valve housing formed to include a tank-side inlet adapted to be coupled in fluid communication to a fuel tank and a canister-side outlet adapted to be coupled in fluid communication to a fuel-vapor recovery canister, the valve housing also being formed to include a valve seat at a fluid-conducting interface to intercept fluid flowing through valve housing between the tank-side inlet and canister-side outlet,a pressure-controlled valve having a first side exposed to fuel vapor flowing into the valve housing through the tank-side inlet and the canister-side outlet and an opposite second side exposed to fuel vapor extant in the fuel tank that is communicated to the opposite second side via a valve-pressurization feed passageway exposed to fuel vapor extant in the fuel tank, the pressure-controlled valve being mounted for movement relative to the valve housing to a closed position wherein the first side engages the valve seat to block flow of fuel vapor between the tank and canister passageways and an opened position wherein the first side disengages the valve seat to allow flow of fuel vapor between the tank and canister passageways, andvalve-opening means for lowering pressure of fuel vapor exposed to the opposite second side of the pressure-controlled valve by venting pressurized fuel vapor that has been communicated via the valve-pressurization feed passageway to the opposite second side of the pressure-controlled valve into the canister passageway through a pressurized-vapor bleed passageway for discharge into the atmosphere in response to an electrical input so that the pressure-controlled valve moves from the closed position away from the valve seat to the opened position to allow pressurized fuel vapor to flow from the tank passageway into the canister passageway through the fluid-conducting ...

Подробнее
Номер записи: 44
04-05-2017 дата публикации

CANISTER CLOSED VALVE FOR AUTOMOTIVE FUEL SYSTEM

Номер: US20170122266A1
Автор: Park Jung Su
Принадлежит:

A canister closed valve for an automotive fuel system is positioned at a vent line of a canister, which is exposed to atmospheric air, so as to perform a sealing function for the fuel system. The canister closed valve includes a valve body for protecting a coil assembly and internal components, the coil assembly for converting electric energy into magnetic energy; a plunger and rod assembly, which is magnetized and is moved up and down so as to block a pipe channel when power is applied; a spring for restoring the plunger and rod assembly so as to open the pipe channel when the application of the power is shut off; and an inner housing, which is disposed in the valve body, accommodates the core and the plunger and rod assembly, and includes an internal space isolated from atmospheric air when the plunger and rod assembly is raised. 1. A canister closed valve for an automotive fuel system , comprising:a valve body for protecting a coil assembly and internal components;the coil assembly for converting electric energy into magnetic energy;a plunger and rod assembly, which includes a plunger portion, a rod portion and a sealing portion, and which is magnetized and is moved up and down so as to block a pipe channel when power is applied;a spring for restoring the plunger and rod assembly so as to open the pipe channel when the application of power is shut off; andan inner housing, which is disposed in the valve body, accommodates a core and the plunger and rod assembly, and includes an internal space isolated from atmospheric air by the sealing portion when the plunger and rod assembly is raised.2. The canister closed valve of claim 1 , wherein the sealing portion of the plunger and rod assembly is configured to be symmetrical with respect to a horizontal line so as to perform a function of blocking the pipe channel and a function of blocking the internal space of the inner housing.3. The canister closed valve of claim 1 , wherein the inner housing is configured to have ...

Подробнее
Номер записи: 45
25-08-2022 дата публикации

ELECTRONIC EVAPORTIVE EMISSIONS MANAGEMENT SYSTEM

Номер: US20220268223A1
Автор: Beaupre Mark, Dayton Robert Andrew, Franklin Max Russell, Memmer Matthew, Mills Vaughn Kevin, Nahar Nikhil, Solanki Sudeep Motilal
Принадлежит: Eaton Intelligent Power Limited

An evaporative emissions control system configured for use with a vehicle fuel tank includes a purge canister, an accelerometer, first and second vent tubes that terminate at first and second vent openings, a first vent valve, a second vent valve, a vent shut-off assembly and a control module. The accelerometer senses acceleration in an x, y and z axis. The first vent valve is fluidly coupled to the first vent tube. The second vent valve is fluidly coupled to the second vent tube. The vent shutoff assembly selectively opens and closes the first and second valves. The control module estimates a location of liquid fuel based on the sensed acceleration from the accelerometer and determines which vent opening is one of submerged and about to be submerged based on the estimated location of the liquid fuel. The control module closes the vent valve associated with the determined vent opening. 1. An evaporative emissions control system configured to recapture and recycle emitted fuel vapor in a vehicle fuel tank having liquid fuel , the evaporative emissions control system comprising:a purge canister adapted to collect fuel vapor emitted by the fuel tank and to subsequently release the fuel vapor to an engine;a three axis accelerometer that senses acceleration in an x, y and z axis;a vent tube disposed in the fuel tank and that terminates at a vent opening;a vent valve fluidly coupled to the vent tube and configured to selectively open and close a port that connects the vent valve to the vent tube;a vent shut-off assembly that selectively opens and closes the valve to provide overpressure and vacuum relief for the fuel tank; anda control module that regulates operation of the vent shut-off assembly based on operating conditions, wherein the control module (i) estimates a location of liquid fuel based on the sensed acceleration from the accelerometer and (ii) determines whether the vent opening is one of submerged and about to be submerged based on the estimated location of ...

Подробнее
Номер записи: 46
25-08-2022 дата публикации

FUEL TANK SYSTEM

Номер: US20220268241A1
Автор: MATSUNAGA Hideo, OHSHIMA Takuya, UEMATSU Kyosuke
Принадлежит: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA

A fuel tank system includes a fuel storage unit, a processing unit, and a control unit. The control unit performs a first failure diagnosis of diagnosing a failure of the fuel storage unit in a state where the sealing valve is closed. When the control unit diagnoses that the fuel storage unit is normal, the control unit performs a second failure diagnosis of diagnosing a failure of a purge valve and a bypass valve by causing a pressure generation unit to generate pressure in a state where the sealing valve is closed. When there is a possibility that the purge valve and the bypass valve are in closed-sticking, the control unit performs a third failure diagnosis of specifying a failure in any one of closed-sticking of the purge valve and closed-sticking of the bypass valve by opening the sealing valve. 1. A fuel tank system for a vehicle having an internal combustion engine , the fuel tank system comprising:a fuel storage unit having a sealing valve and configured to seal a fuel tank that stores fuel;a processing unit configured to process fuel evaporative gas in the fuel tank; anda control unit configured to diagnose a failure of the fuel storage unit and the processing unit, a communication passage through which the sealing valve and an intake passage of the internal combustion engine are communicated with each other,', 'a first on-off valve configured to be opened and closed between the intake passage and the communication passage,', 'a canister connected to the communication passage between the sealing valve and the first on-off valve and configured to adsorb fuel evaporative gas in the fuel tank,', 'a second on-off valve configured to be opened and closed between the canister and the communication passage, and', 'a pressure generation unit connected to the canister and configured to generate pressure, and, 'wherein the processing unit includes'} perform a first failure diagnosis of diagnosing a failure of the fuel storage unit in a state where the sealing valve ...

Подробнее
Номер записи: 47
16-04-2020 дата публикации

EVAPORATED FUEL PROCESSING DEVICE

Номер: US20200116091A1
Автор: Asanuma Daisaku
Принадлежит:

The evaporated fuel processing device may include a pump unit including a pump body configured to pump out evaporated fuel generated in a fuel tank to an intake passage, and a pump controller configured to drive the pump body; and a controller configured to cause the pump controller to control the pump body. When an index related to a temperature of the pump unit exceeds a predetermined range, the controller may restrict the driving of the pump body. 1. An evaporated fuel processing device comprising:a pump unit comprising a pump body configured to pump out evaporated fuel generated in a fuel tank to an intake passage, and a pump controller configured to drive the pump body; anda controller configured to cause the pump controller to control the pump body,whereinwhen an index related to a temperature of the pump unit exceeds a predetermined range, the controller reduces a rotational speed of the pump body as compared to a state where the index does not exceed the predetermined range.2. The evaporated fuel processing device according to claim 1 , whereinthe index includes at least one of an ambient temperature of the pump unit, a temperature of gas passing through the intake passage and a temperature of cooling water for an engine.3. The evaporated fuel processing device according to claim 1 , whereinthe pump controller comprises a pump control circuit on which a temperature sensor is mounted, andthe index includes a temperature sensed by the temperature sensor. The present specification relates to an evaporated fuel processing device mounted on a vehicle.Japanese Patent Application Publication No. 2008-240641 describes an evaporated fuel processing device configured to supply purge gas that contains evaporated fuel to an intake passage connected to an engine. The evaporated fuel processing device supplies the evaporated fuel to the intake passage by using a pump disposed between the intake passage and a fuel tank.There may be a case where the temperatures in the pump ...

Подробнее
Номер записи: 48
19-05-2016 дата публикации

Fuel Vapor Canister Heater Control And Diagnostic Systems And Methods

Номер: US20160138528A1
Автор: Burleigh Darrell W., Cadman William R., Casetti Martino
Принадлежит:

An energy module determines an amount of energy consumed by an electric heater of a fuel vapor canister since an ignition system of the vehicle was last transitioned from OFF to ON. A purge valve control module controls opening a purge valve while the ignition system of the vehicle is ON, wherein fuel vapor flows from the vapor canister through the purge valve to an air intake system when the purge valve is open. A heater control module selectively applies power to the electric heater of the fuel vapor canister and, based on at least one of the amount of energy consumed by the electric heater and a mass of fuel vapor that has flowed through the purge valve, selectively disconnects the electric heater from the power until after the ignition system is transitioned from ON to OFF. 1. A heater control system for a vehicle , comprising:an energy module that determines an amount of energy consumed by an electric heater of a fuel vapor canister since an ignition system of the vehicle was last transitioned from OFF to ON;a purge valve control module that controls opening a purge valve while the ignition system of the vehicle is ON, wherein fuel vapor flows from the vapor canister through the purge valve to an air intake system when the purge valve is open; anda heater control module that selectively applies power to the electric heater of the fuel vapor canister and that, based on at least one of the amount of energy consumed by the electric heater and a mass of fuel vapor that has flowed through the purge valve, selectively disconnects the electric heater from the power until after the ignition system is transitioned from ON to OFF.2. The heater control system of wherein claim 1 , when the amount of energy consumed by the electric heater is greater than a predetermined amount of energy claim 1 , the heater control module disconnects the electric heater from the power until after the ignition system is transitioned from ON to OFF.3. The heater control system of wherein ...

Подробнее
Номер записи: 49
28-05-2015 дата публикации

ISOLATION VALVE WITH FAST DEPRESSURIZATION FOR HIGH-PRESSURE FUEL TANK

Номер: US20150144819A1
Автор: McLauchlan Raymond Bruce, Pifer Daniel Lee
Принадлежит:

An isolation valve may include a flow restrictor disposed in a passage having non-parallel sides, the flow restrictor having an orifice. A flow restrictor spring may apply a biasing force on the flow restrictor to bias the flow restrictor to an open position. A solenoid assembly may include having a coil and an armature that may be moveable between (i) an extended position that overcomes the biasing force of the restrictor spring to move the flow restrictor to a closed position and to close the second orifice, and (ii) a retracted position to open the orifice. If the coil is energized, the armature may move to the retracted position to allow vapor to flow through the orifice at least until the biasing force of the flow restrictor spring overcomes a vapor pressure. The open position of the flow restrictor may allow vapor to flow through a space between the flow restrictor and the passage. 1. An isolation valve , comprising:a flow restrictor disposed in a passage having non-parallel sides, the flow restrictor having an orifice;a flow restrictor spring that applies a biasing force on the flow restrictor to bias the flow restrictor to an open position; and a coil; and', 'an armature that is moveable between (i) an extended position that overcomes the biasing force of the restrictor spring to move the flow restrictor to a closed position and to close the second orifice, and (ii) a retracted position to open the orifice,, 'a solenoid assembly, includingwherein when the coil is energized, the armature moves to the retracted position to allow vapor to flow through the orifice at least until the biasing force of the flow restrictor spring overcomes a vapor pressure; and, the open position of the flow restrictor allows vapor to flow through a space between the flow restrictor and the passage.2. The isolation valve of claim 1 , wherein a first side of the non-parallel sides is tapered.3. The isolation valve of claim 2 , wherein a second side of the non-parallel sides is ...

Подробнее
Номер записи: 50
10-06-2021 дата публикации

EVAPORATIVE FUEL VAPOR EMISSION CONTROL SYSTEMS

Номер: US20210170324A1
Автор: Hiltzik Laurence H., McCrae Peter D., Miller James R., Williams Roger S.
Принадлежит:

An evaporative emission control canister system comprises an initial adsorbent volume having an effective incremental adsorption capacity at 25° C. of greater than 35 grams n-butane/L between vapor concentration of 5 vol % and 50 vol % n-butane, and at least one subsequent adsorbent volume having an effective incremental adsorption capacity at 25° C. of less than 35 grams n-butane/L between vapor concentration of 5 vol % and 50 vol % n-butane. The evaporative emission control canister system has a two-day diurnal breathing loss (DBL) emissions of no more than 20 mg at no more than 210 liters of purge applied after the 40 g/hr BETP butane loading step. 1. An evaporative emissions control canister system comprising:an initial adsorbent volume having an effective incremental adsorption capacity at 25° C. of greater than about 35 grams n-butane/L between vapor concentration of 5 vol % and 50 vol % n-butane; andat least one subsequent adsorbent volume having an effective incremental adsorption capacity at 25° C. of less than about 35 grams n-butane/L between vapor concentration of 5 vol % and 50 vol % n-butane,wherein the subsequent adsorbent volume is configured to have or exhibit at least one of: (i) a substantially uniform structure that facilitates approximately uniform air and vapor flow distribution across its flow path cross section, or (ii) a substantially uniform structure that facilitates approximately uniform air and vapor flow distribution and an effective butane working capacity (BWC) of less than about 3 g/dL and a g-total BWC of from about 2 to about 6 grams,wherein the initial and subsequent adsorbent volumes are in communication, and wherein the canister system has a two-day diurnal breathing loss (DBL) emissions of no more than 20 mg at no more than about 210 liters of purge applied after a 40 g/hr BETP butane loading step.2. The canister system of claim 1 , wherein the initial adsorbent volume and subsequent adsorbent volume are in vaporous ...

Подробнее
Номер записи: 51
25-05-2017 дата публикации

SYSTEMS AND METHODS FOR PURGING A FUEL VAPOR CANISTER

Номер: US20170145962A1
Автор: Dudar Aed M.
Принадлежит:

A method for an engine is presented, wherein during a first condition, pressurized gas from an engine coolant degas bottle to an ejector positioned in a vent line coupled to a fuel vapor canister; and the contents of the fuel vapor canister are purged to an engine intake. The ejector may draw atmospheric air into the fuel vapor canister, thus enabling purging of the fuel vapor canister even when an engine intake vacuum is below a threshold. In this way, boosted engines and other engines configured to operate with reduced intake vacuum may execute canister purging events that are independent of engine intake pressure. 1. A method for an engine , comprising:during a first condition, flowing pressurized gas from an engine coolant degas bottle to an ejector positioned in a vent line coupled to a fuel vapor canister; andpurging contents of the fuel vapor canister to an engine intake.2. The method of claim 1 , wherein the first condition comprises an intake manifold adjusted pressure greater than a threshold.3. The method of claim 2 , wherein the first condition further comprises a boosted engine condition.4. The method of claim 1 , wherein purging contents of the fuel vapor canister to an engine intake comprises opening a canister purge valve and maintaining a canister vent valve open.5. The method of claim 4 , wherein flowing pressurized gas from an engine coolant degas bottle to an ejector comprises opening a degas bottle routing valve deposed within a degas routing line coupled between the degas bottle and an inlet of the ejector.6. The method of claim 5 , wherein a suction inlet of the ejector is coupled within the vent line so as to draw atmospheric air through the vent line responsive to pressurized gas being flowed into the ejector.7. The method of claim 6 , wherein an outlet of the ejector is coupled within the vent line so as to direct atmospheric air drawn through the vent line towards a fresh air port of the fuel vapor canister.8. The method of claim 5 , ...

Подробнее
Номер записи: 52
07-05-2020 дата публикации

SADDLE-RIDING TYPE VEHICLE

Номер: US20200140030A1
Автор: AKITA Kohei, ISHII Hiroshi, MIZUKAWA Teruaki
Принадлежит:

A saddle-riding type vehicle includes a driver's seat on which an occupant taking a driving posture sits, a fuel tank disposed in front of the driver's seat and extending in a front-rear direction and a canister formed into a long-length shape that defines a longitudinal direction of the canister, fuel vapors generated in the fuel tank being brought into the canister and adsorbed and held by an adsorbent provided in the canister. The canister is disposed under the fuel tank with the longitudinal direction aligned with the front-rear direction and is entirely covered by the fuel tank in vehicle side view. 1. A saddle-riding type vehicle comprising:a driver's seat on which an occupant taking a driving posture sits;a fuel tank disposed in front of the driver's seat and extending in a front-rear direction; anda canister formed into a long-length shape that defines a longitudinal direction of the canister, fuel vapors generated in the fuel tank being brought into the canister and adsorbed and held by an adsorbent provided in the canister, whereinthe canister is disposed under the fuel tank with the longitudinal direction aligned with the front-rear direction and is entirely covered by the fuel tank in vehicle side view.2. The saddle-riding type vehicle according to claim 1 , whereinthe fuel tank includes a raised portion formed on a center of the fuel tank in a vehicle width direction, the raised portion resulting from raising a bottom portion of the fuel tank upward and extending in the front-rear direction, a vehicle body frame extending under the raised portion in the front-rear direction, an upper surface of the raised portion being gradually getting lower toward a rear of the raised portion, andthe canister is disposed close to a front side of the fuel tank.3. The saddle-riding type vehicle according to claim 1 , whereinthe fuel tank includes, in a middle portion of the fuel tank in the front-rear direction, a bulging portion bulging outward in a vehicle width ...

Подробнее
Номер записи: 53
16-05-2019 дата публикации

ELECTRONIC EVAPORTIVE EMISSIONS MANAGEMENT SYSTEM

Номер: US20190145326A1
Автор: Beaupre Mark, Dayton Robert Andrew, Franklin Max Russell, Memmer Matthew, Mills Vaughn Kevin, Nahar Nikhil, Solanki Sudeep Motilal
Принадлежит: Eaton Intelligent Power Limited

An evaporative emissions control system configured for use with a vehicle fuel tank includes a purge canister, an accelerometer, first and second vent tubes that terminate at first and second vent openings, a first vent valve, a second vent valve, a vent shut-off assembly and a control module. The accelerometer senses acceleration in an x, y and z axis. The first vent valve is fluidly coupled to the first vent tube. The second vent valve is fluidly coupled to the second vent tube. The vent shutoff assembly selectively opens and closes the first and second valves. The control module estimates a location of liquid fuel based on the sensed acceleration from the accelerometer and determines which vent opening is one of submerged and about to be submerged based on the estimated location of the liquid fuel. The control module closes the vent valve associated with the determined vent opening. 1. An evaporative emissions control system configured to recapture and recycle emitted fuel vapor in a vehicle fuel tank having liquid fuel , the evaporative emissions control system comprising:a purge canister adapted to collect fuel vapor emitted by the fuel tank and to subsequently release the fuel vapor to an engine;a three axis accelerometer that senses acceleration in an x, y and z axis;a first vent tube disposed in the fuel tank and that terminates at a first vent opening;a second vent tube disposed in the fuel tank and that terminates at a second vent opening;a first vent valve fluidly coupled to the first vent tube and configured to selectively open and close a first port that connects the first vent valve to the first vent tube;a second vent valve fluidly coupled to the second vent tube and configured to selectively open and close a second port that connects the second vent valve to the second vent tube;a vent shut-off assembly that selectively opens and closes the first and second valves to provide overpressure and vacuum relief for the fuel tank; anda control module that ...

Подробнее
Номер записи: 54
07-05-2020 дата публикации

EVAPORATED FUEL PROCESSING DEVICE

Номер: US20200141360A1
Автор: TAKAGI Kosei
Принадлежит:

An evaporated fuel processing device is configured to collect evaporated fuel from a fuel tank of an internal combustion engine. The evaporated fuel processing device includes the fuel tank, a canister, a tank sealing valve, a switching valve, and a differential pressure sensor. The fuel tank stores fuel for the internal combustion engine. The canister adsorbs evaporated fuel generated in the fuel tank. The switching valve switches between allowing and blocking off communication between the canister and open air. The differential pressure sensor detects a system differential pressure between the pressure on the canister side of the tank sealing valve and the pressure on the fuel tank side of the tank sealing valve in the detection target system. 1. An evaporated fuel processing device for recovering evaporated fuel from a fuel tank of an internal combustion engine , comprising:a fuel tank which stores fuel;a canister that adsorbs the evaporated fuel generated in the fuel tank;a tank sealing valve that switches between allowing and blocking communication between the fuel tank and the canister;a switching valve that switches between allowing and blocking communication between the canister and open air; anda differential pressure sensor configured to detect a system differential pressure of a detection target system including the canister and the fuel tank, the system differential pressure being a pressure difference between a pressure on the canister side of the tank sealing valve and a pressure on the fuel tank side of the tank sealing valve.2. The evaporated fuel processing device according to claim 1 , further comprising:a leakage diagnosis unit configured to perform a leakage diagnosis in the detection target system based on the system differential pressure.3. The evaporated fuel processing device according to claim 2 , wherein{'b': 1', '1, 'the differential pressure sensor is configured to detect a differential pressure ΔP, the differential pressure ΔP being the ...

Подробнее
Номер записи: 55
07-05-2020 дата публикации

Fuel vapor gas purge system

Номер: US20200141362A1
Автор: Soo Hong Lee, Tae Kwang EOM
Принадлежит: Hyundai Motor Co, Kia Motors Corp

A fuel vapor gas purge system is provided. The system includes an ejector having an intake pipe for intake of intake gas, an ejection pipe for ejection of the intake gas and vapor gas, and a suction pipe for suctioning the vapor gas. A first purge line is connected between the suction pipe of the ejector and a vapor gas outlet port of a canister and a second purge line is connected between the ejection pipe of the ejector and a gas suction pipe at a front end of a throttle valve. An intake gas branch line is connected between the intake pipe of the ejector and a predetermined position of an intake gas line. Additionally, a first booster is installed in the intake gas branch line to supercharge the intake gas to the intake pipe of the ejector.

Подробнее
Номер записи: 56
07-05-2020 дата публикации

VALVE WITH TEMPERATURE COMPENSATION

Номер: US20200141512A1
Автор: Driemer Siegfried, Heinrich Ralf, Hoppner Diether, Koch Daniel
Принадлежит:

A valve is provided having a circuit that includes an electrical conductor with a temperature-dependent electrical resistance. The electrical conductor is connected in series to an electrical series resistor, which includes a parallel circuit of a non-reactive wire and an NTC resistor. The electrical conductor includes a coil wire wound into a magnetic coil that is operable to move an armature to open or close the valve. The effect of the operation of the valve itself on the magnetic force of the coil is minimized by arranging the NTC resistor to be thermally coupled with the coil wire. 1. A valve , comprising:a conduit through which fluid may flow;a sealing seat;a coil that includes an electric conductor wound over a coil support;an armature at least partially disposed within the coil and movable to open and close the sealing seat to control the flow of fluid through the conduit, the armature being movable in response to a magnetic field generated by the coil; andan electric series resistor that compensates for temperature-related resistance changes of the coil, the electric series resistor being connected in series with the coil and comprising a non-reactive wire connected in parallel with a negative temperature coefficient resistor, the non-reactive wire being wound around the coil support so as to be coaxial with the coil, and wherein the resistance of the non-reactive wire at 600° C. is less than 20% higher than the resistance of the non-reactive wire at 20° C.2. The valve of claim 1 , wherein the non-reactive wire is made of an alloy comprising copper claim 1 , nickel and manganese.3. The valve of claim 2 , wherein the electric conductor of the coil comprises a copper wire.4. The valve of claim 3 , wherein the non-reactive wire is wound over the copper wire and is electrically insulated from the copper wire.5. The valve of claim 4 , wherein the non-reactive wire contributes to the magnetic field of the coil.6. The valve of claim 3 , wherein the non-reactive ...

Подробнее
Номер записи: 57
16-06-2016 дата публикации

Canister

Номер: US20160169162A1
Автор: Junpei Omichi, Satoshi Seki, Shuichi Eguchi
Принадлежит: Mahle Filter Systems Japan Corp

A canister has a housing whose one end is provided with a charge port and a purge port and whose other end is provided with a drain port and a heater. The housing is divided into a no-heat-application section on a charge port and purge port side and a heat-application section on a drain port side. The heat-application section is further divided into at least two spaces of a first space located on the drain port side and a second space located on a no-heat-application section side. The first space is filled with an activated carbon whose BWC is equal to or greater than 6 g/dL and less than 10 g/dL, and the second space is filled with an activated carbon whose BWC is 13 g/dL or greater. The heater heats whole of the heat-application section including the first space and the second space.

Подробнее
Номер записи: 58
15-06-2017 дата публикации

SYSTEMS AND METHODS FOR CONTROLLING FUEL VAPOR FLOW IN AN ENGINE-DRIVEN GENERATOR

Номер: US20170167446A1
Автор: Jochman Nathan J., Kropp Eric M., Laitala John P.
Принадлежит:

An engine-driven generator that controls fuel vapor flow is provided. The engine-driven generator includes an engine having an air intake, wherein the engine is configured to drive a generator. The engine-driven generator also includes a fuel tank coupled to the engine and configured to provide fuel to the engine. The engine-driven generator includes a valve coupled between the air intake of the engine and the fuel tank. The engine-driven generator also includes a control device configured to transition the valve between a first position and a second position. The first position allows fuel vapor to flow between the fuel tank and the air intake of the engine and the second position inhibits the fuel vapor from flowing between the fuel tank and the air intake of the engine. 1. An engine-driven generator comprising:an engine having an air intake passage and coupled to a generator, wherein the engine is configured to drive the generator;a fuel tank coupled to the engine and configured to provide fuel to the engine;a valve positioned along a fuel vapor path between the air intake passage of the engine and the fuel tank, wherein the valve comprises a first position and a second position, and wherein the first position allows fuel vapor to flow from the fuel tank to the air intake passage of the engine via the fuel vapor path and the second position directly inhibits the fuel vapor from flowing from the fuel tank to the air intake passage of the engine and directly causes the fuel vapor to divert from the fuel vapor path and to an external outlet.2. The engine-driven generator of claim 1 , comprising a control device communicatively coupled to the valve and configured to cause the valve to transition between the first position and the second position and thereby control when fuel vapor may flow between the fuel tank and the engine.3. The engine-driven generator of claim 2 , wherein the control device is configured to cause the valve to transition between the first ...

Подробнее
Номер записи: 59
15-06-2017 дата публикации

HEATER FOR CANISTER

Номер: US20170167447A1
Автор: EGUCHI Shuichi, OMICHI Junpei, Seki Satoshi
Принадлежит: MAHLE FILTER SYSTEMS JAPAN CORPORATION

A heater for a canister includes a heater case embedded within an adsorption material and sealed at a top, and a heater core having a heat generation element and installed in the heater case. The bottom of the heater case is fitted into a heater retaining hole of a cap member in a hermetically-sealed state, for enabling the heat generation element and terminals of the heater core to be completely separated from the gas atmosphere containing the adsorbed fuel components within an activated carbon region. A leaf spring having a heat conductivity is arranged between an outside surface of one of a pair of strip-shaped ceramic plates constructing part of the heater core and an inner wall surface of the heater case, for retaining the heater core in place within the heater case and for permitting heat transfer from the heat generation element to the adsorption material. 1. A heater for a canister comprising:a metal heater case, which is formed into a hollow tubular shape sealed at a top and embedded within an adsorption material contained in a canister case;a heater core having a heat generation element sandwiched by a pair of strip-shaped ceramic plates, and inserted and arranged in the heater case, and equipped with terminals led out of a bottom end of the heater core;an elastic member having a heat conductivity and arranged between an outside surface of at least one of the pair of strip-shaped ceramic plates and an inner wall surface of the heater case facing the outside surface of the at least one strip-shaped ceramic plate; anda synthetic-resin cap member having a heater retaining hole to which a connector portion of a bottom of the heater case is fitted in a hermetically-sealed state, and fitted onto a bottom-end opening of the canister case so as to hermetically cover the bottom-end opening.2. The heater as recited in claim 1 , wherein:{'b': '58', 'i': 'a', 'the connector portion has at least one slip-off preventing annular protrusion integrally formed on an outer ...

Подробнее
Номер записи: 60
21-05-2020 дата публикации

PRESSURE SENSOR MALFUNCTION DETERMINATION DEVICE FOR FUEL TANK

Номер: US20200158050A1
Автор: Ichikawa Tatsuya, Ono Masahiro
Принадлежит: SUBARU CORPORATION

A pressure sensor malfunction determination device for a fuel tank includes a fuel tank that stores fuel, a canister that absorbs an evaporated fuel gas and includes a drain port opened to atmosphere, an evaporation path communicating with the canister and fuel tank, a purge gas path communicating with an engine inlet system and the canister, a pressure sensor that detects a pressure, a solenoid valve that opens/closes the evaporation path, and a control unit that controls an opening/closing state of the solenoid valve. When the fuel tank pressure is one of predetermined positive and negative pressure states, the control unit performs valve-opening control on the solenoid valve. The control unit includes a pressure sensor malfunction determination unit that, when an output value of the pressure sensor detected under an atmospheric pressure condition corresponds to a pressure other than the atmospheric pressure, determines that the pressure sensor is malfunctioning. 1. A pressure sensor malfunction determination device for a fuel tank , comprising:a fuel tank configured to store fuel for an engine;a canister configured to absorb an evaporated fuel gas in the fuel tank, the canister including a drain port opened to atmosphere;an evaporation path that communicates with the canister and the fuel tank;a purge gas path configured to communicate with an engine inlet system and the canister;a fuel tank pressure sensor configured to detect a pressure in the fuel tank;a tank on-off solenoid valve configured to open and close the evaporation path; anda control unit configured to control an opening and closing state of the tank on-off solenoid valve, whereinthe control unit performs valve-opening control on the tank on-off solenoid valve when the pressure in the fuel tank detected by the fuel tank pressure sensor is at least one of a predetermined positive pressure state and a predetermined negative pressure state, andthe control unit includes a pressure sensor malfunction ...

Подробнее
Номер записи: 61
25-06-2015 дата публикации

EVAPORATED FUEL PROCESSING APPARATUS

Номер: US20150176543A1
Автор: Kato Takashi, Yasuda Yoshihiro
Принадлежит:

An evaporated fuel processing apparatus includes a casing provided with a tank port, and the casing is provided with at least one adsorbent layer filled with adsorbent which adsorbs/desorbs evaporated fuel generated in a fuel tank or the like, a vapor-liquid separator separating the evaporated fuel introduced from the tank port into a vapor phase component and a liquid phase component thereof, respectively, and a filter separating the vapor-liquid separator from the adsorbent layer, and, a liquid storing member which is a component separate from the casing, and is opened at at least a tank port side for storing the separated liquid phase component is attached in the casing, and, the filter is fixed to an inner circumferential surface of the casing and the liquid storing member is sandwiched between the casing and the filter. 1. An evaporated fuel processing apparatus comprising a casing provided with a tank port ,wherein said casing comprises at least one adsorbent layer filled with adsorbent which adsorbs/desorbs evaporated fuel generated in a fuel tank or the like, a vapor-liquid separator separating the evaporated fuel introduced from the tank port into a vapor phase component and a liquid phase component thereof, respectively, and, a filter separating said vapor-liquid separator from said adsorbent layer, andwherein a liquid storing member which is a component separate from said casing and is opened at at least a tank port side for storing said separated liquid phase component is attached in the casing, and said filter is fixed to an inner surface of said casing and said liquid storing member is sandwiched between the casing and the filter.2. The evaporated fuel processing apparatus according to claim 1 , wherein said liquid storing member is formed in a cup shape having a bottom part and a peripheral wall claim 1 , and a channel which communicates between said vapor-liquid separator and said adsorbent layer is formed between said peripheral wall and said casing ...

Подробнее
Номер записи: 62
01-07-2021 дата публикации

METHOD FOR DIAGNOSING SEALING IN A FUEL VAPOUR RECIRCULATION SYSTEM AND RELATED RECIRCULATION SYSTEM

Номер: US20210199070A1
Автор: Collet Thierry
Принадлежит:

Disclosed is a method for diagnosing sealing in a fuel vapor recirculation system for an engine of a motor vehicle. An electronic module is integrated into the engine control unit that is woken up and placed on standby periodically while the engine is off, at the start and end of time intervals in order to perform a respective leak diagnosis, the fuel vapor temperature Tsys being estimated as a function of a time t ending at the start of each interval and starting when the engine is switched off according to the following equation, in which Tamb is the ambient temperature measured, Tsys0 is the fuel vapor temperature when the vehicle is switched off, and tsys is a system response time: 1151664144451aa. A method for diagnosing sealing in a fuel vapor recirculation system for an internal combustion engine () of a motor vehicle , the system being controlled by an engine control unit () that is active when the engine () is operating , the system comprising a vent pipe () connecting the system to the outside , this vent pipe () being automatically mechanically shut off by a natural vacuum leak detection device () as soon as the engine () is off , negative pressure of the fuel in the system , which occurs with the cooling of the fuel vapor temperature Tsys , being detected and compared to a predetermined negative pressure , the reaching and maintenance of this negative pressure representing the sealing of the system from the outside , the detection device () interacting with an electronic module () monitoring the negative pressure and a temperature in the system and determining whether the system is sealed or not , wherein the electronic module () is integrated into the engine control unit () , which is woken up and placed on standby periodically when the engine () is off , at the start and end respectively of predetermined time intervals , in order to perform a respective leak diagnosis , the fuel vapor temperature Tsys being estimated as a function of a time t ending at ...

Подробнее
Номер записи: 63
01-07-2021 дата публикации

FUEL ADSORPTION DEVICE AND EVAPORATED FUEL PROCESSING APPARATUS INCLUDING THE SAME

Номер: US20210199072A1
Автор: HASUMI Takashi, Iwauchi Hiroshi, OMICHI Junpei, YAMASHITA Yuya
Принадлежит:

A fuel adsorption device may include a case and a heater. The case may be metal and may have a multi-cylindrical shape. The case may accommodate a plurality of adsorbents configured to at least one of adsorb and desorb evaporated fuel. The case may include a cylindrical first wall part, at least one cylindrical second wall part disposed further inward than the first wall part, and a plurality of connection parts connecting the first wall part and the at least one second wall part to one other. A first adsorbent of the plurality of adsorbents may be arranged in a first space disposed between the first wall part and the second wall part. A second adsorbent of the plurality of adsorbents may be arranged in a second space disposed further inward than the second wall part. The heater may be disposed on an outer surface of the first wall part. 1. A fuel adsorption device , comprising:a case composed of a metal and having a multi-cylindrical shape, the case accommodating a plurality of adsorbents configured to at least one of adsorb and desorb evaporated fuel; anda heater for the case; a cylindrical first wall part;', 'at least one cylindrical second wall part disposed further inward than the first wall part; and', 'a plurality of connection parts connecting the first wall part and the at least one second wall part to one other;, 'the case includingwherein a first adsorbent of the plurality of adsorbents is arranged in a first space disposed between the first wall part and the second wall part, and a second adsorbent of the plurality of adsorbents is arranged in a second space disposed further inward than the second wall part; andwherein the heater is disposed on an outer surface of the first wall part.2. The fuel adsorption device according to claim 1 , wherein the plurality of connection parts are arranged opposite each other.3. The fuel adsorption device according to claim 1 , wherein the heater is disposed at a position that is on an outer periphery of the first wall ...

Подробнее
Номер записи: 64
21-06-2018 дата публикации

Evaporated Fuel Processing Device

Номер: US20180171939A1
Автор: Oohashi Hitoshi, Toyoda Kazuki, Watanabe Kazuhisa
Принадлежит:

An evaporated fuel processing device includes: an evaporated fuel passage connecting a fuel tank and a canister; a purge passage connecting the canister and an intake passage of an internal combustion engine a first purge control valve arranged to open and close the purge passage; a tank open passage connecting a position on an upstream side of the first purge control valve in the purge passage, and the tank; and a second purge control valve arranged to open and close the tank open passage, when the fuel tank becomes a negative pressure, the second purge control valve being opened to introduce an atmospheric pressure through the canister. 1. An evaporated fuel processing device comprising:an evaporated fuel passage connecting a fuel tank and a canister;a purge passage connecting the canister and an intake passage of an internal combustion engine;a first purge control valve disposed in the purge passage, and arranged to open and close the purge passage;a tank open passage connecting a position on an upstream side of the first purge control valve in the purge passage, and the tank; anda second purge control valve disposed in the tank open passage, and arranged to open and close the tank open passage,when the fuel tank becomes a negative pressure, the blocking valve being closed, the second purge control valve being opened to introduce an atmospheric pressure through the canister to the fuel tank.2. The evaporated fuel processing device as claimed in claim 1 , wherein the blocking valve is opened with a delay from the valve opening of the second purge control valve.3. The evaporated fuel processing device as claimed in claim 1 , wherein a passage area of the second purge control valve is set to a value smaller than a passage area of the blocking valve.4. The evaporated fuel processing device as claimed in claim 1 , wherein when the fuel tank becomes a negative pressure during driving of the internal combustion engine claim 1 , the second control valve is opened to ...

Подробнее
Номер записи: 65
30-06-2016 дата публикации

FUEL VAPOR RECOVERY APPARATUS

Номер: US20160186698A1
Автор: Makino Katsuhiko, Sugimoto Atsushi, WAKAMATSU Keisuke
Принадлежит: AISAN KOGYO KABUSHIKI KAISHA

A fuel vapor recovery apparatus includes an adsorbent canister capable of capturing fuel vapor produced in a fuel tank, a purge passage connecting the adsorbent canister to an intake passage of an engine, and a purge pump for delivering fuel vapor from the adsorbent canister to the intake passage via the purge passage. The purge pump has a pump part and a motor part configured to drive the pump part. The fuel vapor recovery apparatus further includes a prevention mechanism for preventing liquid fuel liquefied from the fuel vapor in the purge passage from entering the motor part through the pump part. 1. A fuel vapor recovery apparatus for a vehicle having a fuel tank and an engine , the fuel vapor recovery apparatus comprising:an adsorbent canister adapted to capture fuel vapor produced in the fuel tank;a purge passage connecting the adsorbent canister to an intake passage of the engine;a purge pump provided along the purge passage and adapted to deliver the fuel vapor from the adsorbent canister to the intake passage, the purge pump having a pump part and a motor part, the motor part being configured to drive the pump part; anda prevention mechanism configured to prevent liquid fuel liquefied from the fuel vapor in the purge passage from entering the motor part through the pump part.2. The fuel vapor recovery apparatus according to claim 1 , wherein the pump part includes a housing and an impeller;wherein the impeller has a rotational axis and is capable of rotating about the rotational axis in the housing;wherein the housing defines therein a flow passage configured to flow the fuel vapor along an outer circumferential edge of the impeller;wherein the prevention mechanism includes a liquid storage part defined in the housing; andwherein the liquid storage part is configured to reserve the liquid fuel and is located below the flow passage.3. The fuel vapor recovery apparatus according to claim 2 , wherein the purge pump is placed in an engine room of the vehicle.4. ...

Подробнее
Номер записи: 66
28-06-2018 дата публикации

CANISTER DISPOSING STRUCTURE OF SADDLE RIDING VEHICLE

Номер: US20180179992A1
Автор: KISHI Nobuyuki, KURATA Ko, MORITA Jiro
Принадлежит:

A canister includes a fresh air introducing port for introducing a fresh air into the canister. The fresh air introducing port is opened in a space formed by at least a tank cover. The canister is connected to a drain pipe for draining a liquid in the canister to the outside of the canister. The drain pipe extends rearward at a height same as or higher than a lower end of the tank cover. The drain pipe merges with a supplied-fuel drain pipe and extends to a lower portion of a vehicle. The supplied-fuel drain pipe drains a fuel around a fuel supply port of a fuel tank. 1. A canister disposing structure of a saddle riding vehicle , comprising:an engine installed to a vehicle body frame in a rear side of a front wheel;a fuel tank supported to the vehicle body frame in an upside of the engine;a tank cover for covering the fuel tank from a lateral side, the tank cover extending frontward of at least the fuel tank; anda canister covered with the tank cover from a lateral side in a position where the canister overlaps with the fuel tank in height, as seen in a side view,wherein the canister includes a fresh air introducing port for introducing a fresh air into the canister, the fresh air introducing port being opened in a space formed by at least the tank cover, andthe canister is connected to a drain pipe for draining a liquid in the canister to the outside of the canister, the drain pipe extending rearward at a height same as or higher than a lower end of the tank cover, the drain pipe merging with a supplied-fuel drain pipe and extending to a lower portion of a vehicle, the supplied-fuel drain pipe draining a fuel around a fuel supply port of the fuel tank.2. The canister disposing structure of the saddle riding vehicle according to claim 1 ,wherein the canister is connected to a charge pipe for leading an evaporative fuel generated in the fuel tank to the canister, andthe charge pipe extends in the fuel tank in a position where an outer plate of the fuel tank is ...

Подробнее
Номер записи: 67
28-06-2018 дата публикации

FUEL TANK SYSTEM

Номер: US20180180001A1
Автор: KAMIKOZAWA Takahiro
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

A fuel tank system is provided. In the main tank of the system, the end of a communication pipe is located above the end of a fuel introduction pipe inserted into the main tank. The end of a first pressure relief pipe at which a first cut-off valve is provided is located above the end of the communication pipe. In the auxiliary tank, the end of the communication pipe is located above the end of the fuel introduction pipe inserted into the auxiliary tank. In the auxiliary tank, the end of a second pressure relief pipe at which a second cut-off valve is provided is located above an end of a scavenging pipe. 1. A fuel tank system comprising:a feed pump module, which is configured to draw fuel and supply the fuel;a controller, which is configured to control the feed pump module;a main tank, which accommodates the feed pump module;an auxiliary tank; the branching portions each have an end,', 'the end of one of the branching portions is inserted into the main tank from above,', 'the end of the other branching portion is inserted into the auxiliary tank from above, and', 'the fuel introduction pipe is configured to preferentially introduce fuel to the main tank;, 'a fuel introduction pipe, which has two branching portions in the middle, wherein'}a transfer device, which is configured to draw fuel in the auxiliary tank and transfer the fuel to the main tank;a communication pipe, which connects the main tank and the auxiliary tank to each other, the communication pipe having an end that is inserted into the main tank from above and an end that is inserted into the auxiliary tank from above;a canister, which collects fuel vapor;a scavenging pipe, which connects the canister and the auxiliary tank to each other;an ORVR valve, which is a float type valve provided at an end of the scavenging pipe located in the auxiliary tank, wherein the ORVR valve is configured to close when a liquid level of fuel reaches the ORVR valve, thereby limiting scavenging of fuel vapor from the ...

Подробнее
Номер записи: 68
29-06-2017 дата публикации

FUEL EVAPORATIVE EMISSION CONTROL DEVICE

Номер: US20170184058A1
Автор: IDE Hideto, MIYATA Toshiyuki, UEDA Katsunori
Принадлежит: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA

When high-pressure purge (the first purge control) (d-f) in which fuel evaporative gas in the fuel tank is emitted until internal pressure in the fuel tank decreases to a second predetermined pressure by closing a vapor solenoid valve, opening a fuel tank shutoff valve and a purge control valve when an engine is running finishes, connecting passage purge (the second purge control) (f-g) in which the fuel evaporative gas in vapor piping and purge piping is emitted up to a second predetermined volume (a second predetermined value) or above is performed, and then the fuel evaporative gas in a canister is emitted by opening the vapor solenoid valve (the third purge control) (g-h). 1. A fuel evaporative emission control device , comprising:a connecting passage connecting an intake passage of an internal combustion engine and a fuel tank,a canister for adsorbing fuel evaporative gas incoming through the connecting passage,a connecting passage opening/closing unit switchable between an open and a closed positions to allow or block flow from the connecting passage to the intake passage,a canister opening/closing unit switchable between an open and a closed positions to allow or block flow between the canister and the connecting passage,a tank opening/closing unit switchable between an open and a closed positions to allow or block flow from the fuel tank to the connecting passage,a tank pressure detection unit for detecting internal pressure in the fuel tank,a first purge control unit performing a first purge control which is performed to emit the fuel evaporative gas in the fuel tank into the intake passage and provide the fuel evaporative gas to the internal combustion engine until the internal pressure in the fuel tank decreases to a second predetermined pressure, by opening the tank opening/closing unit, closing the canister opening/closing unit and opening the connecting passage opening/closing unit, when the internal pressure in the fuel tank detected by the tank ...

Подробнее
Номер записи: 69
04-06-2020 дата публикации

Evaporation gas active purge system and active purge method

Номер: US20200173383A1
Автор: Young-Kyu OH
Принадлежит: Hyundai Motor Co, Kia Motors Corp

An evaporation gas active purge system may include a purge line of connecting a canister for absorbing an evaporation gas of a fuel tank to an intake pipe; a purge pump mounted on the purge line; a purge valve mounted on the purge line to be disposed between the purge pump and the intake pipe; a pressure sensor mounted on the purge line to be disposed between the purge pump and the purge valve; and a control unit of receiving a signal from the pressure sensor, and transmitting an operating signal to the purge pump and the purge valve, wherein the control unit controls the purge pump and the purge valve by an engine condition and a vehicle speed.

Подробнее
Номер записи: 70
05-07-2018 дата публикации

INSPECTION APPARATUS AND INSPECTION METHOD

Номер: US20180187632A1
Автор: HASEGAWA Shigeru, ITOH Tomohiro, Kaneko Makoto, KATO Yasuo, KISHI Ryoyuu, TAKAGI Kosei
Принадлежит:

An inspection apparatus includes a pressure sensor, a reference orifice, a pump, and a switching valve. The reference orifice is disposed in a first communication passage communicating a pressure passage receiving the pressure sensor, with a tank passage communicating with a fuel tank. The pump depressurizing or pressurizing the pressure passage includes an intake port and a discharge port, and one of which communicates with an atmospheric passage communicating with the atmosphere and the other one communicates with the pressure passage. The switching valve and switches between a state shutting off a communication of a second communication passage that leads to the pressure passage and passages other than the pressure passage and communicating the atmospheric passage with the tank passage and a state shutting off a communication of the atmospheric passage and passages other than the pump and the atmosphere and communicating the second communication passage with the tank passage. 1. An inspection apparatus detecting an evaporated fuel leakage in a fuel tank , comprising:a pressure sensor;a reference orifice disposed in a first communication passage that communicates a pressure passage provided with the pressure sensor, with a tank passage communicating with the fuel tank;a pump configured to depressurize or pressurize the pressure passage, the pump including an intake port and a discharge port, one of the intake port and the discharge port communicates with an atmospheric passage that communicates with the atmosphere and the other one of the intake port and the discharge port communicates with the pressure passage; anda switching valve configured to operate according to a differential pressure between the pressure passage and the atmospheric passage, which changes depending on the driving of the pump, and to switch between a state to shut off a communication of a second communication passage that leads to the pressure passage and passages other than the pressure ...

Подробнее
Номер записи: 71
06-07-2017 дата публикации

ISOLATION VALVE WITH FAST DEPRESSURIZATION FOR HIGH-PRESSURE FUEL TANK

Номер: US20170191580A1
Автор: McLauchlan Raymond Bruce, Pifer Daniel Lee
Принадлежит:

An isolation valve includes a flow restrictor in a passage and having an orifice and configured to provide a first, second, and third flow paths. A spring may bias the flow restrictor to an open position that opens the second flow path. A solenoid assembly may include a coil and an armature moveable between an extended position that moves the flow restrictor to close the first, second, and third flow paths, and a retracted position that opens the first flow path. The first flow path may include a path from a first reservoir through the orifice to a second reservoir. The second flow path may include a first flow direction from the first reservoir to the second reservoir via a second path, the second path including a space between the flow restrictor and the passage. The third flow path may include a second flow direction from the second reservoir to the first reservoir via the second path. 120- (canceled)21. An isolation valve , comprising:a flow restrictor disposed in a passage, the flow restrictor having an orifice and configured to provide a first flow path, a second flow path, and a third flow path;a flow restrictor spring that applies a biasing force to the flow restrictor to bias the flow restrictor to an open position that opens the second flow path; and a coil; and', 'an armature that is moveable between (i) an extended position that overcomes the biasing force of the flow restrictor spring to move the flow restrictor to a closed position that closes the first flow path, the second flow path, and the third flow path, and (ii) a retracted position that opens the first flow path,, 'a solenoid assembly, includingwherein when the coil is energized, the armature moves to the retracted position to allow vapor to flow through the first flow path at least until the biasing force of the flow restrictor spring overcomes a vapor pressure in a first reservoir to open the second flow path;wherein the first flow path includes a first path from the first reservoir through ...

Подробнее
Номер записи: 72
20-06-2019 дата публикации

PURGE CONTROL SOLENOID VALVE

Номер: US20190186424A1
Автор: CHOI Choo Saeng, Lee Ahn Hee
Принадлежит:

A purge control solenoid valve may include a middle housing in which an inlet flow path is formed and a middle flow path is formed on a center; a valve housing in which a driving module selectively communicating the inlet flow path and the middle flow path is installed; an upper cover coupled to the upper part of the middle housing and including a upper flow path selectively communicated with the middle flow path on the center; and a membrane provided on the upper cover and selectively communicating the middle flow path and the upper flow path. 1. A purge control solenoid valve , comprising:a middle housing in which an inlet flow path is formed and a middle flow path is formed on a center of the middle housing;a valve housing in which a driving module selectively communicating with the inlet flow path or the middle flow path is installed;an upper cover coupled to an upper part of the middle housing and including an upper flow path selectively communicated with the middle flow path; anda membrane provided on the upper cover and selectively communicating with the middle flow path or the upper flow path.2. The purge control solenoid valve of claim 1 , wherein the membrane includes:a membrane body configured to selectively open and close the middle flow path; anda ventilation hole formed on an outer part of the membrane body along a circumferential direction of the membrane body.3. The purge control solenoid valve of claim 2 , wherein an entire area of the ventilation hole is formed to be larger than a cross-section of the upper flow path.4. The purge control solenoid valve of claim 1 , further comprising:a plurality of guide protrusions formed to be protruded inside the upper cover in a radial direction of the upper cover.5. The purge control solenoid valve of claim 1 , further comprising:a plurality of upper stoppers formed on a lower surface of the upper cover facing a center of the upper cover.6. The purge control solenoid valve of claim 5 , whereinthe plurality of ...

Подробнее
Номер записи: 73
11-06-2020 дата публикации

Flow control valve and fuel vapor treating device

Номер: US20200182199A1
Автор: Hirofumi Onodera
Принадлежит: Denso Corp

A flow control valve has a housing, a valve element, a drive member, a drive-member thread, a valve thread, a drive-member detent part, and a valve detent part. A direction where the valve element gets close to a valve seat is a positive direction and an opposite is a negative direction. A first value is a value indicating a distance from an end of the drive-member detent part in the positive direction to an end of the drive-member thread in the positive direction, and a second value is a value indicating a distance from an end of the valve detent part in the negative direction to an end of the valve thread in the negative direction. The second value is larger than the first value.

Подробнее
Номер записи: 74
30-07-2015 дата публикации

FUEL VAPOR CONTROL VALVE AND FUEL VAPOR CONTROL SYSTEM

Номер: US20150211450A1
Автор: Takahashi Tetsuya
Принадлежит:

A control valve is disposed on a vapor control system which controls vapor. A case and caps hold a diaphragm. The case and the diaphragm define a primary chamber. The caps and the diaphragm define a secondary chamber. The secondary chamber communicates to an inlet passage via a through hole formed as an orifice. An inlet pipe is arranged so that the inlet passage and the secondary chamber are adjacent each other by being separated by an outer wall. By employing this arrangement, the through hole can be formed without increasing a vapor permeable surface area. Since the through hole is not formed on the diaphragm, a stable open-and-close characteristic can be provided. The through hole may be formed by using a molding die for forming the inlet passage. Thereby, it is possible to improve productivity. 1. A vapor control valve for controlling vapor of fuel , comprising:a housing member which is made of resin and defines a volume chamber therein;a movable member which is supported by the housing member, divides the volume chamber into a primary chamber and a secondary chamber, and opens and closes a valve, which is disposed between an inlet passage and an outlet passage, by displacing in response to a pressure difference between the primary chamber and the secondary chamber;an electromagnetic valve which is disposed between the secondary chamber and the outlet passage, and changes state between the secondary chamber and the outlet passage to an open state or a dosed state; anda passage forming member which is made of resin and defines the inlet passage communicated to the primary chamber, whereinthe housing member and the passage forming member are arranged so that the inlet passage and the secondary chamber are adjacent to each other by being separated by a wall, and whereinthe wall defines a through hole which straightly penetrates the wall from the inlet passage to provide an orifice communicating the inlet passage and the secondary chamber without penetrating the ...

Подробнее
Номер записи: 75
20-07-2017 дата публикации

METHOD FOR MITIGATING WET-FOULING OF SPARK PLUGS

Номер: US20170204796A1
Автор: Dudar Aed M.
Принадлежит:

Methods and systems are provided for the mitigation of wet-fouling of the spark plugs of an engine. In one example, a method may include, after spark plug fouling has been detected prior to an engine start, drawing fresh air through the EVAP system of an engine, heating it, and flowing the heated gas through one or more cylinders of an engine while the engine is not rotating. 1. A method for an engine system , comprising: transferring heat to a gas in the engine system; and', 'flowing the heated gas through one or more cylinders of an engine while the engine is not rotating., 'responsive to detecting spark plug fouling prior to an engine start,'}2. The method of claim 1 , wherein the spark plug fouling comprises wet fouling occurring as a result of a prior engine start attempt.3. The method of claim 2 , wherein detecting the wet spark plug fouling comprises detecting the wet spark plug fouling responsive to one or more of a throttle position during engine cranking of the prior engine start attempt claim 2 , exhaust gas sensor output during the prior engine start attempt claim 2 , and a threshold number of prior engine start attempts being reached.4. The method of claim 1 , wherein transferring heat to a gas in the engine system comprises transferring heat to one or more of fuel vapors and fresh air from an evaporative emission control (EVAP) system claim 1 , and wherein flowing heated gas through one or more cylinders of the engine comprises flowing one or more of the heated fuel vapors and heated fresh air through the one or more cylinders of the engine.5. The method of claim 4 , wherein transferring heat to one or more of the fuel vapors and fresh air comprises transferring heat from an electric heater positioned in the EVAP system to one or more of the fuel vapors and fresh air.6. The method of claim 5 , wherein flowing one or more of heated fuel vapors and heated fresh air from the EVAP system through the one or more cylinders of the engine comprises:adjusting ...

Подробнее
Номер записи: 76
06-08-2015 дата публикации

EVAPORATED FUEL PROCESSING SYSTEM (AS AMENDED)

Номер: US20150219045A1
Автор: ASO Shuichi
Принадлежит: TOYOTA JIDOSHA KABUSHIKI KAISHA

An ECU determines whether an engine is temporarily stopped (step S). When the ECU determines that the engine is temporarily stopped, the ECU prohibits purging with the use of a purge mechanism (step S), and heats a canister (step S). When the ECU determines that the engine is not temporarily stopped, the ECU permits purging with the use of the purge mechanism (step S). 1. An evaporated fuel processing system including:a fuel tank that stores fuel for an internal combustion engine;a fuel pump configured to draw fuel that is supplied from the fuel tank to the internal combustion engine;an adsorber provided inside the fuel tank and configured to adsorb evaporated fuel developed inside the fuel tank; anda purge mechanism configured to introduce the evaporated fuel from the adsorber into an intake pipe of the internal combustion engine, the evaporated fuel processing system comprisinga heat transfer amount control unit configured to, on the condition that the internal combustion engine is temporarily stopped, increase an amount of heat transferred from the fuel pump to the adsorber.2. The evaporated fuel processing system according to claim 1 , further comprising:an internal combustion engine control unit configured to stop the internal combustion engine on the condition that a predetermined stop condition is satisfied at the time when the internal combustion engine is operated at idle, andthe internal combustion engine control unit configured to, after stopping the internal combustion engine, restart the internal combustion engine on the condition that a predetermined start-up condition is satisfied, whereinon the condition that the internal combustion engine is stopped by the internal combustion engine control unit, the heat transfer amount control unit configured to determine that the internal combustion engine is temporarily stopped.3. The evaporated fuel processing system according to claim 1 , further comprisinga shift position sensor configured to detect a shift ...

Подробнее
Номер записи: 77
04-08-2016 дата публикации

LATCHABLE VALVE AND METHOD FOR OPERATION OF THE LATCHABLE VALVE

Номер: US20160222924A1
Автор: Dudar Aed M., Ghannam Mahmoud Yousef, JR. Robert, Ognjanovski, Pearce Russell Randall, Yang Dennis Seung-Man
Принадлежит:

A fuel system is provided, including a fuel tank isolation valve comprising an actuation coil and a latchable valve shaft at least partially disposed within the actuation coil. A controller may be configured to indicate a position of the valve shaft based on a measured current-voltage relationship between the first and second terminal wires during a condition in which the magnetic field generated by actuation coil current has a flux density below a threshold required to adjust a position of the latchable valve shaft. In this way, the position of the latchable valve shaft may be indicated without moving the valve shaft, and without requiring an dedicated valve position sensor. 1. A fuel system , comprising: an actuation coil comprising a first terminal wire and a second terminal wire, the actuation coil configured to generate a magnetic field when the first and second terminal wires are switchably connected to an actuating voltage source; and', 'a valve shaft at least partially disposed within the actuation coil, the valve shaft configured to change between an open position and a closed position in response to the actuation coil generating a magnetic field having a flux density above a threshold, wherein the valve shaft is configured to alternately latch in the open and closed positions such that the valve shaft is maintained in a latched-open or latched-closed position when the actuation coil is generating a magnetic field having a flux density below the threshold, and wherein the fuel tank and the fuel vapor canister are fluidically coupled when the valve shaft is in the open position but not when the valve shaft is in the closed position; and, 'a fuel tank isolation valve coupled between a fuel tank and a fuel vapor canister, the fuel tank isolation valve comprisinga controller configured to indicate a position of the valve shaft based on a measured current-voltage relationship between the first and second terminal wires during a condition in which the magnetic ...

Подробнее
Номер записи: 78
11-07-2019 дата публикации

Evaporative fuel vapor emission control systems

Номер: US20190211724A1
Автор: James R. Miller, Laurence H. Hiltzik, Peter D. Mccrae, Roger S. Williams
Принадлежит: Ingevity South Carolina LLC

An evaporative emission control canister system comprises an initial adsorbent volume having an effective incremental adsorption capacity at 25° C. of greater than 35 grams n-butane/L between vapor concentration of 5 vol % and 50 vol % n-butane, and at least one subsequent adsorbent volume having an effective incremental adsorption capacity at 25° C. of less than 35 grams n-butane/L between vapor concentration of 5 vol % and 50 vol % n-butane, an effective butane working capacity (BWC) of less than 3 g/dL, and a g-total BWC of between 2 grams and 6 grams. The evaporative emission control canister system has a two-day diurnal breathing loss (DBL) emissions of no more than 20 mg at no more than 210 liters of purge applied after the 40 g/hr butane loading step.

Подробнее
Номер записи: 79
19-08-2021 дата публикации

FUEL TANK PRESSURE REGULATOR

Номер: US20210254583A1
Автор: Brock Michael S., YOUNG Kevin L.
Принадлежит:

A fuel tank vent valve includes a venting apparatus for regulating discharge of fuel vapor from a fuel tank and admission of outside air into a fuel tank. The vent valve is used to regulate pressure in a fuel tank. 1. A tank venting system comprisinga hollow flow-management unit including a vapor conduit formed to include a canister passageway adapted to be coupled in fluid communication to a fuel-vapor recovery canister, a tank passageway adapted to be coupled in fluid communication to a fuel tank, and a medial vapor-transfer passageway arranged to interconnect the canister and tank passageways in fluid communication to transfer fuel vapor flowing from a fuel tank associated with the tank passageway through the tank and canister passageways to a fuel-vapor recovery canister associated with the canister passageway and to transfer fuel vapor flowing from the fuel-vapor recovery canister to the fuel tank through the canister and tank passageways, anda fuel tank isolation valve including a stationary perforated partition plate mounted in the medial vapor-transfer passageway formed in the vapor conduit to partition the medial vapor-transfer passageway so as to establish a tank-side chamber communicating with the tank passageway and a canister-side chamber communicating with the canister passageway to cause a first-side surface of the stationary perforated partition plate to intercept fuel vapor flowing in the medial vapor-transfer passageway from the tank passageway to the canister passageway and to cause an opposite second-side surface of the stationary perforated partition plate to intercept fuel vapor flowing in the medial vapor-transfer passageway from the canister passageway to the tank passageway, the stationary perforated partition plate being formed to include a first vent opening through the first-side surface into the tank-side chamber of the medial vapor-transfer passageway and also opening through the second-side surface into the canister-side chamber of the ...

Подробнее
Номер записи: 80
27-08-2015 дата публикации

METHODS AND SYSTEMS FOR PURGING VEHICLE FUEL VAPORS

Номер: US20150240756A1
Автор: Dudar Aed M., Pearce Russell Randall, Yang Dennis Seung-Man
Принадлежит: FORD GLOBAL TECHNOLOGIES, LLC

Systems and methods for improving fuel vapor purging for a vehicle are presented. In one example, a fuel vapor storage canister vent valve is housed in a fuel vapor storage canister for the purposes of heating contents of the fuel vapor storage canister and venting the fuel vapor storage canister to atmosphere. 1. A method for purging fuel vapors stored in a fuel vapor storage canister , comprising:heating contents of a fuel vapor storage canister via supplying an electrical current to a canister vent valve positioned within the fuel vapor storage canister.2. The method of claim 1 , where the electrical current is substantially constant.3. The method of claim 1 , where the electrical current is varied in time.4. The method of claim 3 , where the electrical current is varied at a frequency that is greater than a natural frequency of the canister vent valve.5. The method of claim 1 , where the canister vent valve is positioned between a canister vent port and a canister purge port.6. The method of claim 1 , where the electrical current is supplied to the canister vent valve in response to a temperature of the fuel vapor storage canister.7. The method of claim 1 , where the electrical current is supplied to the canister vent valve when the canister vent valve is closed.8. A method for purging fuel vapors stored in a fuel vapor storage canister claim 1 , comprising:heating contents of a fuel vapor storage canister via supplying an electrical current to a canister vent valve positioned within the fuel vapor storage canister; andpurging contents of the fuel vapor storage canister to an engine intake manifold in response to an amount of fuel vapor stored in the fuel vapor storage canister.9. The method of claim 8 , further comprising closing a purge valve and ceasing flow of the electrical current in response to a temperature of the fuel vapor storage canister.10. The method of claim 8 , where the electrical current is varied with time.11. The method of claim 10 , further ...

Подробнее
Номер записи: 81
27-08-2015 дата публикации

Liquid trap with integral jet pump

Номер: US20150240764A1
Автор: Himanshu Joshi, Prakash Kotagond, Pritam BHURKE, Stefan Walter, Subrata Sarkar, Swethaghnya Kusa, Vaughn Mills
Принадлежит: Eaton Corp

An assembly is provided that integrates a jet pump with a liquid trap to drain liquid fuel from vapor flow, such as vapor vented from a fuel tank. The assembly includes a housing that has a liquid trap configured to trap liquid carried in vapor flowing through the housing. A jet pump has a venturi nozzle and is in selective fluid communication with the liquid trap so that liquid flow through the venturi nozzle induces draining of the liquid trap.

Подробнее
Номер записи: 82
25-08-2016 дата публикации

CANISTER, AND CANISTER VENT SOLENOID VALVE

Номер: US20160245238A1
Автор: Ueda Masatoshi
Принадлежит: Mitsubishi Electric Corporation

A leak diagnosis is performed on an evaporated fuel processing piping system by inserting a canister vent solenoid valve into an insertion port of a canister and inserting an air pump into an insertion port of the canister When it is configured that the canister vent solenoid valve and the air pump can be inserted separately into the canister in this manner, a system for diagnosing a leak in the evaporated fuel processing piping system can be installed in a more saved space than a case where a module integrating the canister vent solenoid valve and the air pump is inserted thereinto. Moreover, a configuration corresponding to an employed leak diagnosis method can be realized without changing the canister 19-. (canceled)10. A canister having an insertion structure comprising:a canister vent solenoid valve inserted into a first insertion port of a canister having a first chamber that stores evaporated fuel and communicates with an engine side and a fuel tank side and a second chamber that communicates with an atmosphere side and the first chamber, the first insertion port being provided in the second chamber, to maintain and cut off communication between the atmosphere side and the first chamber; andan air pump inserted into a second insertion port provided in the second chamber of the canister to pressurize or depressurize the first chamber,wherein an insertion direction of the canister vent solenoid valve and an insertion direction of the air pump are perpendicular to each other.11. The canister having the insertion structure according to claim 10 , wherein a projection plane obtained by projecting one of the canister vent solenoid valve inserted into the first insertion port and the air pump inserted into the second insertion port from the corresponding insertion direction intersects the other thereof.12. The canister having the insertion structure according to claim 10 , comprising a lid that is inserted into the second insertion port in place of the air pump to ...

Подробнее
Номер записи: 83
23-08-2018 дата публикации

ONBOARD REFUELING VAPOR RECOVERY SYSTEM AND AUTOMOBILE HAVING SAME

Номер: US20180236868A1
Автор: FANG YONGXIN, LI CHANGLUO, Xie SHIBIN
Принадлежит:

An onboard refueling vapor recovery (ORVR) system includes a main canister, a spare canister, a hydrocarbon sensor, a grade rollover valve (GRV), a fill limit vent valve (FLVV) and a fuel vapor pipe. The GRV and the FLVV are disposed at top portion of the fuel tank, with sides of the GRV and the FLVV hermetically connected with the fuel tank and a gas inlet end of the fuel vapor pipe. The main canister and the spare canister hermetically connect with a gas outlet end of the fuel vapor pipe. The main canister communicates with an intake manifold. The hydrocarbon sensor is disposed in the main canister and electrically connected with a vehicle control unit. The hydrocarbon sensor detects hydrocarbon concentration in the main canister and transmits the detection result to the vehicle control unit. The present invention also provides an automobile having the ORVR system. 1. An onboard refueling vapor recovery system , wherein the onboard refueling vapor recovery system comprises a main canister and a spare canister which are filled with activated carbon , a hydrocarbon sensor , a grade rollover valve , a fill limit vent valve , and a fuel vapor pipe , the grade rollover valve and the fill limit vent valve are disposed at a top portion of the fuel tank , with opposite sides of the grade rollover valve and the fill limit vent valve respectively and hermetically connected with the fuel tank and a gas inlet end of the fuel vapor pipe , the main canister and the spare canister are respectively and hermetically connected with a gas outlet end of the fuel vapor pipe , the main canister is communicated with an intake manifold of an engine , the hydrocarbon sensor is disposed in the main canister , the hydrocarbon sensor is electrically connected with a vehicle control unit , the hydrocarbon sensor detects the concentration of hydrocarbon in the main canister and transmits the detection result to the vehicle control unit.2. The onboard refueling vapor recovery system of claim 1 ...

Подробнее
Номер записи: 84
13-11-2014 дата публикации

Canister module

Номер: US20140331976A1
Автор: Koji Tsumoto, Yasuo Kato
Принадлежит: Denso Corp

A tank passage communicates a canister housing with a fuel tank. A purge passage communicates the canister housing with an intake air system. An atmospheric air passage communicates the canister housing with an atmosphere. A valve housing accommodating a valve element is located in a recessed portion defined with a first inner wall and a second inner wall. A seal member is located on a radially outside of the valve housing to seal the recessed portion. The first inner wall has a first opening to communicate the canister housing with the recessed portion. The second inner wall has a second opening to communicate the recessed portion with the atmospheric air passage. The first opening or the second opening is defined around a valve seat. The valve element is seated on and lifted from the valve seat to control communication between the canister housing and the atmospheric air passage.

Подробнее
Номер записи: 85
30-08-2018 дата публикации

BISTABLE ELECTRIC VALVE, PARTICULARLY FOR A SYSTEM FOR RECOVERY OF PETROL VAPOURS IN A MOTOR-VEHICLE

Номер: US20180245708A1
Автор: CHIAPASCO Davide
Принадлежит: BITRON S.P.A.

A bistable electric valve for a system that recovers petrol vapours in a motor vehicle. The electric valve includes a hollow housing () in which there is defined a chamber () with respective first and second openings () between which a valve seat () is defined; an obturator () movable inside said chamber () and adapted to cooperate with the valve seat () for controlling a fluid flow between the openings (); a ferromagnetic core () mounted movably inside the housing () and connected to the obturator (); first and second permanent magnets () mounted in the housing () and adapted to keep the ferromagnetic core () in first and second working positions, respectively, in which the associated obturator () closes and opens the valve seat (), respectively; and a control solenoid () adapted to generate a magnetic flux for attracting the core () towards either one of the said first and second working positions. The obturator () is displaceable with respect to the core (), from and towards the valve seat (), and the obturator () has an associated spring () tending to urge it towards the seat (). 11. A bistable electric valve () for a system for recovery of petrol vapours in a motor-vehicle , comprising:{'b': 2', '5', '4', '3', '6, 'i': a', 'a, 'a hollow housing () in which there is defined a chamber () having respective first and second openings (, ) between which a valve seat () is defined;'}{'b': 7', '5', '6', '4', '3, 'i': a', 'a, 'an obturator () movable inside said chamber () and adapted to cooperate with said valve seat () for controlling a flow of fluid between said openings (, );'}{'b': 17', '2', '7, 'a ferromagnetic core () mounted movably inside the housing () and connected to the obturator ();'}{'b': 11', '12', '2', '17', '7', '6, 'first and second permanent magnets (, ) mounted in the housing () and adapted to keep the ferromagnetic core () in first and second working positions, respectively, in which the associated obturator () closes and opens the valve seat (), ...

Подробнее
Номер записи: 86
17-09-2015 дата публикации

LIQUID FUEL CATCHER

Номер: US20150260130A1
Автор: Takahashi Tetsuya
Принадлежит:

A liquid fuel catcher has a case which defines a plurality of chambers formed as depressions in a passage so that a liquid fuel is accumulated. The case has a communicating portion which communicates the chambers in series at upper portions thereof. The case has openings at each bottom portions of the chambers. The case has a return passage which returns the liquid fuel accumulated in the chambers to a fuel tank. The liquid fuel catcher has a return valve. The return valve closes the return passage, when the liquid fuel level in the fuel tank exceeds a predetermined level. The return valve opens the return passage, when the liquid fuel level in the fuel tank is less than a predetermined level. The fuel returns to the fuel tank from the chambers through the return valve. 1. A liquid fuel catcher , which allows fuel vapor to pass through and catches a liquid fuel , the liquid fuel catcher comprising:a case which defines a passage through which fluid containing fuel vapor and the liquid fuel flows, wherein the case defines:a plurality of chambers defined as depressions on the passage so that the liquid fuel accumulates;a communicating portion which communicates the chambers in series at upper portions thereof; anda return passage which opens at each of bottom portions of the plurality of chambers and allows the liquid fuel accumulated in the chambers to return to a fuel tank, and wherein the liquid fuel catcher further comprises:a return valve which closes the return passage when a liquid fuel level in the fuel tank is higher than a predetermined level, and opens the return passage when a liquid fuel level in the fuel tank is lower than a predetermined level to return the liquid fuel to the fuel tank from the plurality of chambers.2. The liquid fuel catcher in claim 1 , whereinthe case further defines: an inflow passage to a first chamber; and an outflow passage from a last chamber, and wherein the inflow passage and the outflow passage extends in different directions ...

Подробнее
Номер записи: 87
15-08-2019 дата публикации

Canister

Номер: US20190249624A1
Автор: SEKI Kenji
Принадлежит:

Provided is a canister whose performance is enhanced while achieving the advantage of suppressing changes in temperature by using a heat storage material and overcoming the disadvantage of a reduction in the adsorption amount. A canister for treating evaporated fuel includes: a tank port that is in communication with an upper air chamber of a fuel tank of an internal combustion engine; a purge port that is in communication with an air intake path of the internal combustion engine; an atmospheric air port that is open to atmospheric air; and an adsorbent material chamber R that contains an activated carbon that adsorbs evaporated fuel that flows from the tank port to the atmospheric air port. A heat storage material is provided in a tank-side adjacent region T of the adsorbent material chamber R that is provided adjacent to the tank port, the heat storage material being a material obtained by encapsulating, into capsules, a phase change material that absorbs and releases latent heat according to changes in temperature. 1. A canister for treating evaporated fuel , the canister comprising:a tank port that is in communication with an upper air chamber of a fuel tank of an internal combustion engine;a purge port that is in communication with an air intake path of the internal combustion engine;an atmospheric air port that is open to atmospheric air; andan adsorbent material chamber that contains an activated carbon that adsorbs evaporated fuel that flows from the tank port to the atmospheric air port,wherein the adsorbent material chamber includes at least a tank-side adjacent region provided adjacent to the tank port and an atmospheric air-side adjacent region provided adjacent to the atmospheric air port,a heat storage material is provided in the tank-side adjacent region provided adjacent to the tank port, the heat storage material being a material obtained by encapsulating, into capsules, a phase change material that absorbs and releases latent heat according to ...

Подробнее
Номер записи: 88
14-09-2017 дата публикации

FUEL TANK PRESSURE REGULATOR

Номер: US20170260932A1
Автор: Anderson John Brian, Brock Michael S., YOUNG Kevin L.
Принадлежит:

A tank venting system in accordance with the present disclosure includes a vent apparatus for regulating flow of fuel vapor between a fuel tank and a fuel vapor recovery system in a vehicle. The flow of fuel vapor is controlled to maintain the pressure of fuel vapor in the fuel tank at a certain pressure level or within a certain pressure range during different modes of use.

Подробнее
Номер записи: 89
22-09-2016 дата публикации

EVAPORATIVE FUEL VAPOR EMISSION CONTROL SYSTEMS

Номер: US20160271555A1
Автор: Hiltzik Laurence H., McCrae Peter D., Miller James R., Williams Roger S.
Принадлежит:

An evaporative emission control canister system comprises an initial adsorbent volume having an effective incremental adsorption capacity at 25° C. of greater than 35 grams n-butane/L between vapor concentration of 5 vol % and 50 vol % n-butane, and at least one subsequent adsorbent volume having an effective incremental adsorption capacity at 25° C. of less than 35 grams n-butane/L between vapor concentration of 5 vol % and 50 vol % n-butane. The evaporative emission control canister system has a two-day diurnal breathing loss (DBL) emissions of no more than 20 mg at no more than 210 liters of purge applied after the 40 g/hr BETP butane loading step. 1. An evaporative emissions control canister system comprising:an initial adsorbent volume having an effective incremental adsorption capacity at 25° C. of greater than about 35 grams n-butane/L between vapor concentration of 5 vol % and 50 vol % n-butane; andat least one subsequent adsorbent volume having an effective incremental adsorption capacity at 25° C. of less than about 35 grams n-butane/L between vapor concentration of 5 vol % and 50 vol % n-butane,wherein the subsequent adsorbent volume is configured to have or exhibit at least one of: (i) a substantially uniform structure that facilitates approximately uniform air and vapor flow distribution across its flow path cross section, or (ii) a substantially uniform structure that facilitates approximately uniform air and vapor flow distribution and an effective butane working capacity (BWC) of less than about 3 g/dL and a g-total BWC of from about 2 to about 6 grams,wherein the initial and subsequent adsorbent volumes are in communication, and wherein the canister system has a two-day diurnal breathing loss (DBL) emissions of no more than 20 mg at no more than about 210 liters of purge applied after a 40 g/hr BETP butane loading step.2. The canister system of claim 1 , wherein the initial adsorbent volume and subsequent adsorbent volume are in vaporous ...

Подробнее
Номер записи: 90
22-09-2016 дата публикации

APPARATUS AND METHOD FOR PASSIVE CHARGE AIR CONDENSATE DRAIN WITH EXHAUST STACK VENT

Номер: US20160273496A1
Автор: Atz Charles Bernard, Deo Laus Lynd, Jayakar Vijayaselvan, PASCHAL Derek
Принадлежит:

A charge air cooling chamber has a lower wall with an orifice in the lower wall. A condensate pipe is fluidly connected to drain exhaust fume condensate from the orifice into a collection tank. A vent pipe is fluidly connected to vent fumes from an upper opening of the collection tank to an exhaust stack. A loop seal is fluidly connected to drain condensate from a lower opening of the collection tank. Exhaust gas moisture condensate drains from the cooling chamber into the collection tank, via the continuously open orifice. Exhaust gas moisture condensate fumes vent from the collection tank to the exhaust stack. 1. An apparatus comprising:a charge air cooling chamber, the cooling chamber having a lower wall with an orifice in the lower wall;a condensate pipe that is fluidly connected to drain condensate from the orifice into a collection tank;a vent pipe that is fluidly connected to vent fumes from an upper opening of the collection tank to an exhaust stack; anda loop seal that is fluidly connected to drain the condensate from a lower opening of the collection tank.2. The apparatus of wherein the cooling chamber is one of an intercooler chamber claim 1 , an aftercooler chamber claim 1 , or an EGR cooler chamber in a diesel exhaust gas recirculation system that is connected between an exhaust line and an air intake plenum of a diesel engine.3. The apparatus of wherein the cooling chamber has a condensate collection volume indented downward into the lower wall claim 1 , and the orifice is opened from the condensate collection volume.4. The apparatus of wherein the cooling chamber is operably connected as part of an exhaust gas recirculation system that is connected between an exhaust line and an air intake plenum of an engine claim 3 , and wherein during operation of the engine claim 3 , the cooling chamber is pressurized at a pressure greater than a pressure of the exhaust stack claim 3 , the collection tank is pressurized at a pressure intermediate between the ...

Подробнее
Номер записи: 91
27-09-2018 дата публикации

Electromagnetic valve and vaporized gas treatment system

Номер: US20180274493A1
Автор: Yutaro Tawa
Принадлежит: Mitsubishi Electric Corp

A first electromagnetic valve includes a suction port that communicates with a purge pipe and sucks vaporized gas from a canister, a discharge port that communicates with a first purge pipe and discharges the vaporized gas to a downstream side of a throttle, a branch port that communicates with second purge pipes to which a second electromagnetic valve is attached and causes the vaporized gas to branch off to an upstream side of a compressor, a branch passage that diverges into and communicates with the suction port, the discharge port and the branch port. The branch passage includes a chamber having an inner diameter larger than each inner diameter of the ports.

Подробнее
Номер записи: 92
13-10-2016 дата публикации

Evaporated fuel processing device

Номер: US20160298577A1
Автор: Junya Kimoto, Naoyuki Tagawa, Yoshikazu MIYABE
Принадлежит: Aisan Industry Co Ltd

An evaporated fuel processing device has a canister, a vapor passage, a purge passage, a shutoff valve, a storage device and a control device. The canister includes an adsorbent material that adsorbs evaporated fuel generated in a fuel tank. The vapor passage connects the canister and the fuel tank. The purge passage connects the canister and an intake passage of an engine. The shutoff valve is provided in the vapor passage, and adjusts flow rate of gas flowing through the vapor passage. The storage device stores in advance a reference value for the shutoff valve corresponding to internal pressure of the fuel tank. The shutoff valve is controlled based on the reference value, which is obtained from the internal pressure of the fuel tank, and pressure release control is performed on the fuel tank.

Подробнее
Номер записи: 93
13-10-2016 дата публикации

FUEL VAPOR PROCESSING APPARATUS

Номер: US20160298578A1
Автор: Makino Katsuhiko, Sugimoto Atsushi, WAKAMATSU Keisuke
Принадлежит: AISAN KOGYO KABUSHIKI KAISHA

A fuel vapor processing apparatus may include a canister. A negative pressure applying device for applying a negative pressure to the canister may be disposed in a purge passage communicating between the canister and an intake pipe of an engine. A pressure adjusting device may be disposed in a portion of the purge passage communicating between the fuel tank and the negative pressure applying device. 1. A fuel vapor processing apparatus comprising:a canister in fluid communication with a fuel tank via a vapor passage and configured to adsorb fuel vapor generated in the fuel tank;wherein the canister is further in fluid communication with an atmosphere via an atmosphere passage and is further in fluid communication with an intake pipe via a purge passage, the intake pipe being configured to supply atmospheric air to an internal combustion engine;a negative pressure applying device configured to apply a negative pressure to the canister so as to desorb fuel vapor from within the canister, so that the desorbed fuel vapor is supplied to the intake pipe via the purge passage; anda pressure adjusting device configured to adjust the negative pressure applied by the negative pressure applying device;wherein the negative pressure applying device is disposed in the purge passage; andwherein the pressure adjusting device is disposed in a purge passage portion of the purge passage communicating between the fuel tank and the negative pressure applying device.2. The fuel vapor processing apparatus according to claim 1 , wherein the purge passage is configured such that a first pressure in a first region of the purge passage communicating between the intake pipe and the negative pressure applying device has a negative value during application of the negative pressure by the negative pressure applying device.3. The fuel vapor processing apparatus according to claim 2 , wherein the pressure adjusting device is configured such that claim 2 , even in a case that the first pressure has ...

Подробнее
Номер записи: 94
26-10-2017 дата публикации

Canister for vehicle having auxiliary canister

Номер: US20170304766A1
Автор: Cheong Yong Cho, Min Young Park
Принадлежит: Leehan Corp

Disclosed is a canister for a vehicle having an auxiliary canister, which includes: a main canister that has an inlet and an outlet formed therein, an evaporation gas being introduced into the main canister through the inlet from a fuel tank and the evaporation gas introduced through the inlet being discharged through the outlet to the intake side of an engine when the engine is driven, and has a trapping member therein; and an auxiliary canister that is installed to communicate with the main canister to allow external air to be introduced into the main canister or to allow the evaporation gas to flow when the engine is turned off, and has a second trapping member therein, wherein the auxiliary canister includes the second trapping member therein, which has a plurality of pores in the form of a honeycomb.

Подробнее
Номер записи: 95
18-10-2018 дата публикации

Evaporated fuel treating device

Номер: US20180298851A1
Автор: Hiroshi Otsuki, Kazuki Kikuchi
Принадлежит: Toyota Motor Corp

An evaporated fuel treating device includes a fuel tank, a canister containing a fuel adsorbent, a vent pipe, a purge pipe, a purge valve, and a reforming catalyst. The fuel adsorbent captures evaporated fuel that is generated in the fuel tank. The evaporated fuel flows into the canister through the vent pipe. The fuel captured in the canister flows into an intake passage of an engine through the purge pipe. The purge valve is interposed in the purge pipe and opens when the captured fuel is introduced into the intake passage. The reforming catalyst is disposed in a space where the reforming catalyst comes into contact with the evaporated fuel that has not reached the canister. The reforming catalyst is configured to promote a chemical change from unsaturated hydrocarbon to alcohol.

Подробнее
Номер записи: 96
05-11-2015 дата публикации

Carbon canister including liquid separator

Номер: US20150316008A1
Автор: Bjoern Stell, Karsten Danielowski, Piers Catton, Tho Truong Huynh
Принадлежит: Kautex Textron GmbH and Co KG

The invention refers to a fuel vapor storage and recovery apparatus ( 1 ) comprising at least one main vapor storage compartment ( 3 ) filled with an adsorbent material, at least one vapor inlet port ( 7 ), at least one atmospheric vent port ( 8 ), and at least one purge port ( 9 ), said vapor inlet port ( 7 ) being connectable to a fuel tank venting line and said purge port ( 9 ) being connectable to an engine air intake line, wherein said main vapor storage compartment ( 3 ) comprises a purge buffer zone ( 14 ) as well as first vapor distribution chamber ( 10 ) filled with an adsorbent material. Said first fuel vapor distribution chamber ( 10 ) includes a liquid trap.

Подробнее
Номер записи: 97
03-10-2019 дата публикации

EVAPORATED FUEL PROCESSING DEVICE

Номер: US20190301381A1
Автор: HATANO MAKOTO
Принадлежит:

An evaporated fuel processing device may include a canister retaining evaporated fuel in a fuel tank, a vent passage communicating the canister and an intake passage of an engine, a first pump that discharges mixed gas of air and the evaporated fuel to the intake passage via the vent passage, a detector that detects a first pressure value indicating a pressure of the mixed gas discharged by the first pump, a memory storing pressure value-concentration correlated data indicating mixed gas, an acquisition unit that acquires a third pressure value indicating an air pressure detected by the detector in a case where the air containing substantially no evaporated fuel is discharged by the first pump, and an estimation unit that estimates a concentration of the evaporated fuel contained in the mixed gas discharged by the first pump by using the first and third pressure values and the pressure value-concentration correlated data. 1. An evaporated fuel processing device comprising:a canister configured to retain evaporated fuel generated in a fuel tank;a vent passage configured to communicate the canister and an intake passage of an engine;a first pump configured to discharge mixed gas including air and the evaporated fuel retained in the canister to the intake passage via the vent passage;a detector configured to detect a first pressure value which indicates a pressure of the mixed gas discharged by the first pump;a memory storing pressure value-concentration correlated data which indicates a correlation relationship between a second pressure value indicating a pressure of mixed gas discharged by a second pump which is different from the first pump and a concentration of evaporated fuel contained in the mixed gas discharged by the second pump;an estimation unit configured to estimate a concentration of the evaporated fuel contained in the mixed gas discharged by the first pump by using the first pressure value and the pressure value-concentration correlated data stored in ...

Подробнее
Номер записи: 98
10-11-2016 дата публикации

PURGE CONTROL SOLENOID VALVE

Номер: US20160326991A1
Автор: Lee Ahn Hee, LIM Byoung Soo, Seo Bong Kyo
Принадлежит:

A purge control solenoid valve may include a housing including an internal space, an intake port, and an exhaust port, a filter dividing the internal space of the housing into an intake chamber in communication with the intake port and an exhaust chamber in communication with the exhaust port, an armature configured to open and close the exhaust port by a solenoid, and a partition wall provided in the intake chamber of the housing to enclose the filter, and having an opening portion formed on one surface thereof, which does not face the intake port, the filter being exposed through the opening portion such that gas introduced from the intake port is filtered by coming into contact with the filter through the opening portion. 1. A purge control solenoid valve comprising:a housing including an internal space, an intake port, and an exhaust port;a filter dividing the internal space of the housing into an intake chamber in communication with the intake port and an exhaust chamber in communication with the exhaust port;an armature configured to open and close the exhaust port by a solenoid; anda partition wall provided in the intake chamber of the housing to enclose the filter, and having an opening portion formed on one surface thereof, which does not face the intake port, the filter being exposed through the opening portion such that gas introduced from the intake port is filtered by coming into contact with the filter through the opening portion.2. The purge control solenoid valve of claim 1 , wherein the internal space of the housing has a greater height than a diameter of the intake port.3. The purge control solenoid valve of claim 1 , wherein the internal space of the housing has a larger volume than that of exhaust gas when the armature is opened and closed once.4. The purge control solenoid valve of claim 1 , wherein the internal space of the housing comprises a basic chamber claim 1 , having a height corresponding to a diameter of the intake port claim 1 , and a ...

Подробнее
Номер записи: 99
01-11-2018 дата публикации

CANISTER CLOSE VALVE DEVICE

Номер: US20180313298A1
Автор: Lee Jin Ug, Park Jung Su
Принадлежит:

A canister close valve device for opening or closing a passage provided between a canister, which collects evaporation gas evaporated from a fuel tank and the atmosphere may include a plunger configured to selectively move up or down through magnetization with a core inside a valve housing when a solenoid is activated, a rod configured to perform a rectilinear reciprocating movement toward or away from the passage due to the upward/downward movement of the plunger, and a diaphragm valve body, which is inserted into the plunger, is connected to the valve housing, and is configured to be deformed by the upward/downward movement of the plunger and to generate force for impeding the upward/downward movement of the plunger using a pressure difference generated between the plunger and the valve housing. 1. A canister close valve device configured to open or close a passage mounted between a canister , for collecting evaporation gas evaporated from a fuel tank and an atmosphere , the canister close valve device comprising:a plunger configured to selectively move up or down through magnetization with a core inside a valve housing when a solenoid is activated;a rod configured to perform a rectilinear reciprocating movement toward or away from the passage according to upward and downward movement of the plunger; anda diaphragm valve body inserted into the plunger and connected to the valve housing, the diaphragm valve body being configured to be deformed by the upward and downward movement of the plunger and to generate a force for impeding the upward and downward movement of the plunger utilizing a pressure difference generated between the plunger and the valve housing.2. The canister close valve device of claim 1 , wherein the diaphragm valve body includes:a non-deformable portion inserted into the plunger and having a predetermined height to increase a volume of an upper internal region of the valve housing, the non-deformable portion having an orifice formed therein; anda ...

Подробнее
Номер записи: 100
19-11-2015 дата публикации

SOLENOID VALVE

Номер: US20150330514A1
Автор: Harada Hiroyuki, MIURA Yuichiro
Принадлежит:

A first valve chamber, which receives a valve assembly of a tank closing solenoid valve, and a second valve chamber, which receives a valve assembly of a pressure responsive valve, are formed between a first flow passage and a second flow passage of a first housing by fitting a second peripheral wall of a second housing into a radially inner side of a first peripheral wall of the first housing. Thereby, it is not required to heat-weld and bond between a connecting end surface of the first housing and a connecting end surface of the second housing.

Подробнее
Номер записи: 101
16-11-2017 дата публикации

FUEL SYSTEM CONTROL

Номер: US20170328311A1
Автор: Ambrose Steven L., Barve Hrushikesh Arun, Beaupre Mark, Benjey Robert P., Bhurke Pritam, Brauning Kenneth, Franklin Max Russell, Gawale Atish Dinkar, Memmer Matthew, Mills Vaughn Kevin, Nahar Nikhil, Patil Santosh Balasaheb, Sharma Santosh Kumar, Solanki Sudeep Motilal
Принадлежит: EATON CORPORATION

An evaporative emissions control system includes a first vent valve configured to selectively open and close a first vent, a second vent valve configured to selectively open and close a second vent, a fuel level sensor configured to sense a fuel level in the fuel tank, a pressure sensor configured to sense a pressure in the fuel tank, an accelerometer configured to measure an acceleration of the vehicle, and a controller configured to regulate operation of the first and second vent valves to provide pressure relief for the fuel tank. The controller is programmed to determine if a refueling event is occurring based one signals indicating the fuel level is increasing, the pressure in the fuel tank is increasing, and the vehicle is not moving, and open at least one of the first and second vent valves based on determining the refueling event is occurring. 1. An evaporative emissions control system operably associated with a vehicle fuel tank and configured to recapture and recycle fuel vapor emitted from the fuel tank , the evaporative emissions control system comprising:a first vent valve configured to selectively open and close a first vent;a second vent valve configured to selectively open and close a second vent;a fuel level sensor configured to sense a fuel level in the fuel tank;a pressure sensor configured to sense a pressure in the fuel tank;an accelerometer configured to measure an acceleration of the vehicle; and determine if a fuel level in the fuel tank is increasing based on a first signal from the fuel level sensor;', 'determine if a pressure in the fuel tank is increasing based on a second signal from the pressure sensor;', 'determine if the vehicle is not moving based on a third signal from the accelerometer;', 'determine a refueling event is occurring if the first signal indicates the fuel level is increasing, the second signal indicates pressure in the fuel tank is increasing, and the third signal indicates the vehicle is not moving; and', 'open at ...

Подробнее
Номер записи: 102
15-11-2018 дата публикации

FUEL VAPOR PURGE CONTROL SYSTEM AND METHOD FOR HYBRID VEHICLE

Номер: US20180326974A1
Автор: KIM Hyun
Принадлежит:

A fuel evaporation gas purge control method for a hybrid vehicle may include collecting an evaporation gas generated in a fuel tank to a canister; controlling a purge control solenoid valve to provide the evaporation gas collected in the canister to a combustion chamber; monitoring a fault of the purge control solenoid valve; and controlling a torque of an engine by use of a hybrid starter-generator (HSG) when the fault of the purge control solenoid valve is detected. 1. A control method of a fuel evaporation gas purge for a hybrid vehicle comprising:collecting an evaporation gas generated in a fuel tank to a canister;controlling a purge control solenoid valve to provide the evaporation gas collected in the canister to a combustion chamber;monitoring a fault of the purge control solenoid valve; andcontrolling a torque of an engine by use of a hybrid starter-generator (HSG) when the fault of the purge control solenoid valve is detected.2. The control method of claim 1 , wherein the step monitoring the fault includes:determining that the fault is generated when a ground short of the purge control solenoid valve is generated; anddetermining that the purge control solenoid valve is opened such that the evaporation gas inflows to the combustion chamber.3. The control method of claim 1 , whereinthe step controlling the torque of the engine includescompensating the torque of the engine through a torque control of the hybrid starter-generator.4. The control method of claim 3 , whereinthe step compensating the engine torque further includesincreasing a Revolution Per Minute (RPM) of the engine to a target value through the torque control of the hybrid starter-generator.5. The control method of claim 3 , whereinthe step controlling the torque of the engine further includesstopping the torque control of the hybrid starter-generator when the RPM of the engine reaches the target value.6. A fuel vapor purge control system for a hybrid vehicle comprising:a canister collecting an ...

Подробнее
Номер записи: 103
03-12-2015 дата публикации

SYSTEM AND METHODS FOR MANAGING FUEL TANK TEMPERATURE

Номер: US20150345436A1
Автор: Dudar Aed M., Pearce Russell Randall, Siddiqui Shahid Ahmed, Yang Dennis Seung-Man
Принадлежит: FORD GLOBAL TECHNOLOGIES, LLC

A system for an engine, comprising: a fuel tank; a thermal regulator comprising a phase-change material, the thermal regulator coupled to the fuel tank; and an engine coolant passage positioned to transfer thermal energy between engine coolant and the phase-change material. In this way, the temperature of the fuel tank may be managed passively by the phase-change material, and actively by engine coolant, thereby allowing heat energy to be shunted away from the fuel tank, cooling the fuel within the fuel tank, and reducing fuel vapor concentration, thus enabling a fuel vapor canister with a reduced size. 1. A system for an engine , comprising:a fuel tank;a thermal regulator comprising a phase-change material, the thermal regulator coupled to the fuel tank; andan engine coolant passage positioned to transfer thermal energy between engine coolant and the phase-change material.2. The system of claim 1 , where the thermal regulator further comprises the engine coolant passage claim 1 , which further comprises:an engine coolant inlet;an engine coolant outlet; andchannels routed within the thermal regulator coupling the engine coolant inlet and the engine coolant outlet.3. The system of claim 2 , where the engine coolant inlet is coupled to an engine coolant line downstream of a radiator.4. The system of claim 3 , further comprising:a coolant valve coupled to the engine coolant inlet, the coolant valve configured to selectively allow flow of engine coolant into the engine coolant inlet.5. The system of claim 1 , where the thermal regulator is coupled within the fuel tank claim 1 , such that the thermal regulator directly contacts fuel disposed within the fuel tank.6. The system of claim 1 , where the thermal regulator is coupled externally to the fuel tank.7. The system of claim 6 , where the thermal regulator comprises a fuel tank jacket.8. The system of claim 7 , where the fuel tank jacket is coupled to the fuel tank via fuel tank straps.9. A method for a vehicle claim 7 ...

Подробнее
Номер записи: 104
31-10-2019 дата публикации

CONTROL VALVE ASSEMBLY

Номер: US20190331063A1
Автор: Kawamura Yuichiro, SHIRAI Kousuke
Принадлежит:

A control valve assembly includes a housing accommodating an electromagnetic coil unit which is disposed in an in-housing passage and drives a valve element to open and close the in-housing passage. An inflow-outflow member is coupled to the housing, and includes an inflow portion having an inflow passage through which evaporative fuel flows toward the in-housing passage, and an outflow portion having an outflow passage through which the evaporative fuel from the in-housing passage flows. The outflow passage in the outflow portion and the inflow passage in the inflow portion communicate with each other through the in-housing passage.

Подробнее
Номер записи: 105
07-12-2017 дата публикации

Fuel cutoff valve

Номер: US20170350521A1
Автор: Naoki Ogiwara, Yuki Koga
Принадлежит: Honda Motor Co Ltd

A fuel cutoff valve has: a valve mechanism that cuts off a communication between a fuel tank and a canister; an upper space defined above the valve mechanism; a tube body that has a tube passage to be communicated with the upper space and introduces a fuel gas to the canister; a retaining chamber defined by a first fuel shielding portion and a second fuel shielding portion to retain a liquid fuel stored in the upper space; a liquid reservoir portion defined between the tube body and the first fuel shielding portion to store the liquid fuel flowing out of the retaining chamber; and a communication portion through which the retaining chamber communicates with the liquid reservoir portion; wherein the communication portion is formed at a position deviated from the tube body so as not to overlap the tube body, when the tube body is seen in its axial direction.

Подробнее
Номер записи: 106