Intake Manifold Overpressure Compensation For Internal Combustion Engines

Systems and methods for intake manifold overpressure compensation for internal combustion engines with gaseous induction fuel systems are disclosed. The systems and methods include a connecting element that extends between and fluidly connects the downstream ends of first and second intake manifold banks of the internal combustion engine. 1. An internal combustion engine system , comprising:an engine including a first plurality of cylinders along a first side of the engine and a second plurality of cylinders along a second side of the engine;an intake system including a main intake line for providing a charge flow to the engine, the intake system further including a first intake manifold portion connected to the first plurality of cylinders along the first side of the engine and a second intake manifold portion connected to the second plurality of cylinders along the second side of the engine, the first and second intake manifold portions further being connected to the main intake line upstream of the first and second plurality of cylinders to receive the charge flow therefrom and provide the charge flow to respective ones of the first and second plurality of cylinders; anda connecting element extending between and fluidly connecting the first and second intake manifold portions downstream of the first and second plurality of cylinders.2. The system of claim 1 , wherein the first and second intake manifold portions extend along an outboard side of respective ones of the first and second plurality of cylinders.3. The system of claim 1 , wherein the charge flow comprises air.4. The system of claim 3 , further comprising a fuel source connected to the main intake line and the charge flow comprises an air and fuel mixture.5. The system of claim 4 , wherein the fuel source is selected from the group comprising natural gas claim 4 , methane claim 4 , propane and hydrogen.6. The system of claim 1 , wherein the first plurality of cylinders are arranged in a V-configuration ...

ASPIRATOR AND EJECTOR SYSTEM

An engine system having a flowpath between a junction upstream of a turbocharger and an intake manifold that includes an ejector and an aspirator connected in parallel relative to one another within the flowpath is disclosed. The motive flow through the ejector is in the opposite direction relative to the direction of the motive flow through the aspirator, and both the ejector and the aspirator have a suction port fluidly coupled to a device requiring vacuum. The engine system also includes a first check valve disposed in control of the motive flow through the ejector and a second check valve disposed in control of the motive flow through the aspirator and may also include a control valve in fluid communication within the flowpath upstream or downstream of the ejector and the aspirator that controls the flow into and/or out of both thereof. 1. An engine system comprising:a flowpath between a junction upstream of a turbocharger and an intake manifold of an engine intake system;an ejector and an aspirator connected in parallel relative to one another and forming a portion of the flowpath;wherein the motive flow through the ejector is in the opposite direction relative to the direction of the motive flow through the aspirator, and both the ejector and the aspirator have a suction port fluidly coupled to a device requiring vacuum.2. The engine system of claim 1 , wherein the first aspirator and the second aspirator are both connected to the same device requiring vacuum.3. The engine system of claim 1 , wherein the motive flow through the ejector is from the intake manifold toward the junction upstream of the turbocharger.4. The engine system of claim 1 , further comprising a first check valve disposed in control of the motive flow through the ejector and a second check valve disposed in control of the motive flow through the aspirator.5. The engine system of claim 4 , further comprising a third check valve disposed in control of the flow through the suction port of the ...

AIR INTAKE PASSAGE STRUCTURE FOR ENGINE

An air intake passage () has a third passage () that connects an intercooler () and a bottom portion of a surge tank () such that the intercooler () is positioned below the surge tank (). A pair of wall portions () configured to catch moisture is formed in a section from an upstream end portion of the third passage () to a connected portion between said third passage () and the surge tank (). 1. An air intake passage structure for an engine comprising:an intake port that communicates with a combustion chamber; andan air intake passage in which an intercooler and a surge tank are sequentially provided from an upstream side along a flow direction of gas and in which a downstream end portion is connected to the intake port, whereinthe air intake passage is arranged such that the intercooler is positioned below the surge tank in a vehicle-mounted state, and has an introduction passage that connects the intercooler and a bottom portion of the surge tank, andat least one of the introduction passage and the surge tank has a reverse flow prevention structure that suppresses a reverse flow of moisture from a flow of the gas.2. The air intake passage structure for the engine according to claim 1 , whereinthe reverse flow prevention structure is arranged in a section from an upstream end portion of the introduction passage to a connected portion between a downstream end portion of the introduction passage and the surge tank, and is configured to catch the moisture that flows reversely from the flow of the gas.3. The air intake passage structure for the engine according to claim 2 , whereinthe introduction passage is connected to the surge tank via an introduction port formed in the bottom portion of the surge tank, andthe reverse flow prevention structure is formed around the introduction port.4. The air intake passage structure for the engine according to claim 3 , whereinthe engine has plural cylinders that are arranged in line,the surge tank extends in a cylinder array ...

PRESSURING SYSTEM FOR A VEHICLE ENGINE COMPONENTS FOR WATER PROTECTION

A pressuring system for a vehicle engine includes an intake manifold into which ambient gases flows. A control valve connects to the intake manifold. An engine block connects to the intake manifold and connected to a gases outlet. A timing belt cover connects to the engine block. A gases pipe connects between the control valve and the timing belt cover. 1. A pressuring system for a vehicle engine , comprising:an intake manifold into which ambient gases flows;a control valve connected to the intake manifold;an engine block connected to the intake manifold and connected to a gases outlet;a timing belt cover connected to the engine block; anda gases pipe connected between the control valve and the timing belt cover.2. The pressuring system of claim 1 , further comprising a starter motor connected to the engine block claim 1 , the starter motor having a starter motor cover; andwherein the gases pipe is further connected between the control valve and the starter motor cover.3. The pressuring system of claim 2 , further comprising a pressure relief valve mounted on the starter motor cover.4. The pressuring system of claim 1 , further comprising a starter motor connected to the engine block claim 1 , the starter motor having a starter motor cover; anda second gases pipe connected between the timing belt cover and the starter motor cover.5. The pressuring system of claim 4 , further comprising a pressure relief valve mounted on the starter motor cover.6. The pressuring system of claim 1 , wherein the control valve is electrically controlled.7. The pressuring system of claim 1 , wherein the control valve is vacuum controlled.8. The pressuring system of claim 1 , further comprising an electronic control module is connected to the control valve and configured to operate the control valve.9. The pressuring system of claim 8 , further comprising a water sensor connected to the electronic control module claim 8 , wherein the electronic control module is configured to control ...

AIR INTAKE SYSTEM FOR MULTI-CYLINDER ENGINE

Intake ports include a second port configured such that a flow rate of flowing gas is adjusted via a swirl control valve. When a surge tank is viewed in a cylinder axis direction, first and second branched passages are connected with a space being interposed therebetween in a cylinder array direction, and are connected to the surge tank on extension lines, each of which extends from an upstream end portion of an independent passage connected to the second port to an opposite side of each cylinder. 1. An air intake passage structure for an engine comprising:at least three or more of a plurality of cylinders that are arranged in an array;a plurality of intake ports that respectively communicate with the plurality of cylinders; andan air intake passage that is connected to each of the plurality of intake ports, whereinfor each of the plurality of cylinders, the plurality of intake ports include a swirl control valve (SCV) port that is configured to reduce a flow rate of flowing gas via a swirl control valve, a plurality of independent passages that are respectively connected to the plurality of intake ports;', 'a surge tank, to which upstream end portions of the plurality of independent passages arranged in an array according to an alignment order of the corresponding cylinders are connected; and', 'a plurality of upstream passages, a downstream end portion of each of which is connected to the surge tank, and each of which introduces the gas into the surge tank, and, 'the air intake passage hasthe plurality of upstream passages are arranged with a space being interposed therebetween in a cylinder array direction, and, when the surge tank is viewed in a cylinder axis direction, the plurality of upstream passages are connected to the surge tank on extension lines, each of which extends from the upstream end portion of one of the independent passages connected to one of the SCV ports to an opposite side of the plurality of cylinders.2. The air intake system for the multi- ...

STRUCTURE FOR SUCTIONING BACK BLOW-BACK FUEL

A first fuel storage portion is disposed on the upstream side of a fuel supply device of an engine so as to be contiguous with an air-intake passage of the fuel supply device. A blow-back suppression plate for suppressing blow-back from the air-intake passage is disposed between a filter element and the first fuel storage portion of an air cleaner. A suction-back passage is formed such that fuel accumulated in a fuel accumulation portion in the air cleaner is suctioned back through the suction-back passage into the air-intake passage. The suction-back passage allows communication between the fuel accumulation portion in the air cleaner and a suction-back port formed at the downstream-side end of the first fuel storage portion. 1. A structure for suctioning back blow-back fuel , the structure comprising:a first fuel storage portion disposed on an upstream side of a fuel supply device of an engine and contiguous with an air-intake passage of the fuel supply device;a suction-back passage through which fuel accumulated in an air cleaner is suctioned back into the air-intake passage; anda blow-back suppression plate disposed between a filter element of the air cleaner and the first fuel storage portion and configured to suppress blow-back from the air-intake passage, whereinthe suction-back passage allows communication between a fuel accumulation portion in the air cleaner and a suction-back port formed in the first fuel storage portion.2. The structure for suctioning back blow-back fuel as claimed in claim 1 , further comprisinga blow-back prevention piece formed at an upstream-side end of the first fuel storage portion, the blow-back prevention piece being opposed to an inlet of the air-intake passage and configured to prevent blow-back from the air-intake passage.3. The structure for suctioning back blow-back fuel as claimed in claim 1 , whereinthe air cleaner includes a cleaner case connected to the fuel supply device, and a cleaner cap covering the cleaner case and ...

Stratified scavenging two-stroke engine

A stratified scavenging two-stroke engine includes a first scavenging passage that extends from a first scavenging intake that opens to the inside of the crankcase to a first scavenging port that opens to the inside of a cylinder, and a second scavenging passage that extends from a second scavenging intake that opens to the inside of the crankcase to a second scavenging port that opens to the inside of the cylinder. The first and second passages are formed so as to communicate with each other via a communicating portion. An air passage is connected to the first passage at a position closer to the first scavenging intake than the communicating portion. A first check valve inhibits a flow from the first passage to the inside of the crankcase, and a second check valve inhibits a flow from the first passage through the air passage to the outside.

Apparatus and methods for controlling the movement of matter

Embodiments of apparatus for controlling the movement of matter, including but not limited to one-way fluid valves, are disclosed. The apparatus may include a transition nozzle, a funnel nozzle, and a reverse flow blocker arranged in series in a case. A counter-flow area may be disposed about the funnel nozzle. The apparatus may permit matter to flow in a first direction, and discourage or prevent flow in a direction reverse to the first direction. Control over the flow of matter may also enable the matter to be harvested, sorted, separated or combined with injected matter.

SYSTEM FOR ENHANCING PERFORMANCE OF CARBURETOR ENGINE AND PERIPHERALS OF AN ALL-TERRAIN VEHICLE

A system for enhancing performance of a carburetor engine and peripherals of an all-terrain vehicle. 1. An intake manifold assembly for an All-Terrain Vehicle (ATV) , the intake manifold assembly comprising:a metallic intake manifold operatively associated with a cylinder head;a rubber coupler circumscribing the metallic intake manifold; anda rubber S-shaped intake manifold fluidly coupling a carburetor to an air box, wherein the metallic intake manifold supports the carburetor by a connection between the rubber coupler and the rubber S-shaped intake manifold.2. The intake manifold assembly of claim 1 , wherein the metallic intake manifold is made of aluminum claim 1 , and wherein the metallic intake manifold provides a holding ridge spaced apart from the cylinder head claim 1 , wherein the holding ridge connects to a first opening of the rubber coupler claim 1 , wherein a second opening of rubber coupler connects to the rubber S-shaped intake manifold claim 1 , and wherein the second opening points downward relative to the first opening.3. The intake manifold assembly of claim 2 , further comprising an output port flange radially extending at an output end of the metallic intake manifold.4. The intake manifold assembly of claim 3 , further comprising a gasket coextensive with the output port flange claim 3 , the gasket interconnecting the metallic intake manifold to the cylinder head.5. The intake manifold assembly of claim 4 , further comprising a valve point between the output end and an input end of the metallic intake manifold.6. The intake manifold assembly of claim 5 , further comprising an input port flange radially extending at the output end of the metallic intake manifold.7. The intake manifold assembly of claim 6 , wherein the input port flange and the output port flange are both eye-shaped and radially offset by approximately 45 degrees relative each other.8. The intake manifold assembly of claim 7 , wherein a peripheral midpoint of each port flange are ...

EXHAUST GAS RECIRCULATION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE AND METHOD FOR OPERATING SUCH AN EXHAUST GAS RECIRCULATION SYSTEM

The invention relates to an exhaust gas recirculation system for an internal combustion engine, and to a method for operating an exhaust gas recirculation system of this type. Here, the exhaust gas recirculation system has an air feed line, an exhaust gas line, an exhaust gas recirculation line which leads from an EGR branch-off point in the exhaust gas line to an EGR feed-in point in the air feed line, and a throttle valve within the air feed line downstream of the EGR feed-in point. 1. An exhaust gas recirculation system for an internal combustion engine , the exhaust gas recirculation system comprising;an air feed line,an exhaust gas line,an exhaust gas recirculation line which leads from an exhaust gas recirculation branch-off point in the exhaust gas line to an EGR feed-in point in the air feed line, anda throttle valve within the air feed line downstream of the EGR feed-in point, and a bypass line for fresh air, is connected to the air feed line downstream of the throttle valve at a feed in point.2. The exhaust gas recirculation system as claimed in claim 1 , wherein the bypass line leads from a bypass branch-off point in the air feed line upstream of the EGR feed-in point to the bypass feed-in point.3. The exhaust gas recirculation system as claimed in claim 2 , wherein a check valve is provided within the air feed line claim 2 , the check valve is arranged between the bypass branch-off point and the EGR feed-in point and permits a throughflow of the air feed line exclusively from the bypass branch-off point in the direction of the EGR feed-in point.4. The exhaust gas recirculation system of claim 1 , comprising; a bypass valve for shutting off the bypass line is provided within the bypass line.5. The exhaust gas recirculation system of claim 1 , comprising; a check valve is provided within the bypass line claim 1 , the check valve permits a throughflow of the bypass line exclusively in the direction of the bypass feed-in point.6. The exhaust gas ...

Internal combustion engines with external mixture formation and compensation vessel for avoiding re-ignition

Internal combustion engines having an external mixture formation and compensation tank for avoiding reignition. An internal combustion engine is provided having an external mixture formation including at least one exhaust system, at least one intake system, the intake system including at least one intake manifold, at least one throttle valve, at least one mixture forming device, at least one compensation tank, and at least one air filter.

CHECK VALVES AND VENTURI DEVICES HAVING THE SAME

Check valves, Venturi devices and engines having such check valves, define an internal cavity having a first port and a second port, a first seat and a second seat, and a translatable seal disk. The check valves have an outlet conduit extending from the second port and/or the first seat has a first annular seal bead and a second annular seal bead disposed radially inward of the first annular seal bead with a plurality of ribs extending between the first annular seal bead and the second annular seal bead within the fluid flow path of the first port. The outlet conduit defines an outlet passageway having a restrictor profile that is circular in a transverse profile, and the ribs decrease the flow area of the fluid flow path of the first port by about 10% to about 60%. 1. A check valve comprising:a housing defining an internal cavity having a first port and a second port both in fluid communication therewith and having a first seat and a second seat, the first seat being proximate the first port;a seal disk within the internal cavity, wherein the seal disk is translatable between a closed position against the first seat and an open position against the second seat; andan outlet conduit extending from the second port, wherein the outlet conduit defines an outlet passageway and an outlet end, wherein the outlet passageway has a restrictor profile.2. The check valve of claim 1 , wherein the restrictor profile has a first portion more proximate the second port and a second section more proximate the outlet end claim 1 , wherein as viewed in a transverse cross-section both the first portion and the second portion are circular.3. The check valve of claim 2 , wherein the first portion narrows according to a parabolic or hyperbolic function along the length of the first portion in the downstream direction.4. The check valve of claim 3 , wherein the second portion narrows according to a parabolic or hyperbolic function along the length of the second portion in the downstream ...

Air Leading Type Two-Stroke Engine And Intake System For Same, And Carburetor

An amount of air taken into an air leading type two-stroke engine is increased to enhance an engine output, and gas emission characteristic deterioration caused by blow-back is inhibited. An inhibition member is disposed between a choke valve in a full open position and a throttle valve in a full open position. The inhibition member includes, for example, a mesh member like a metal mesh. Mixed fuel containing oil is supplied to the air-fuel mixture channel . Numerous pores of the inhibition member (mesh member) are occluded by a membrane of oil components of the mixed fuel. Consequently, entry of a blow-back flow of an air-fuel mixture from the air-fuel mixture channel into the air channel through the numerous pores of the flow inhibition member (mesh member) can be inhibited. 1. An air leading type two-stroke engine that , at an initial stage of a scavenging process of the engine , induces air charged in a scavenging channel of an engine body into a combustion chamber thereof and then induces an air-fuel mixture inside a crankcase of the engine body into the combustion chamber through the scavenging channel , the two-stroke engine comprising:a first passage extending from a filter element of an air cleaner to the engine body and allowing air to be supplied to the scavenging channel;a second passage extending from the filter element to the engine body and allowing at least air to be supplied to the crankcase;a communication portion that brings the first passage and the second passage into communication with each other; andan inhibition member that inhibits entry of a blow-back of the air-fuel mixture passing in the second passage into the first passage through the communication portion.2. The air leading type two-stroke engine according to claim 1 , wherein the inhibition member has a function that guides a blow-back flow in the first passage and/or the blow-back flow in the second passage and thereby produces a gas barrier adjacent to the communication portion.3. ...

Intake structure of vehicle and method of mounting nipple to intake structure

An intake structure of a vehicle is provided to prevent engine oil from flowing back along a nipple. The structure includes an intake hose which is mounted between an air cleaner and a compressor of a turbo charger. A pocket part, in which the oil comprised in a blow-by gas through the nipple is collected, is formed on the inner sidewall surface of the intake hose. The intake structure prevents the oil existing in the recirculated blow-by gas from flowing into a fresh air nipple.

Intake manifold

To provide an intake manifold which can reliably prevent the step from being formed in the inner wall surface of the intake passage (15) while having provided therein the fitting holding portion (32) for fitting and holding the flame arrester (25) in the axial direction, the intake manifold (10) includes a base member (21), a cover member (22) and a flame arrester (25) having a flame suppression structure. Between the flame arrester (25) and the radical stepped surface (31b) of the recessed body portion (31) is provided a retaining rectifying member (23) that prevents the flame arrester (25) from coming off with respect to the fitting holding portion (32) and forms a third inner peripheral surface (23a) continuous without a step from an opening portion on the other end side (25b) of the flame arrester (25) to the base side second inner wall surface (31c).

Supplementary air assembly for an engine

An internal combustion engine includes a crankcase including a crankshaft and at least one cylinder coupled to the crankcase. The at least one cylinder has an intake port and defines an internal combustion chamber. The engine further includes a throttle body assembly with a throttle valve coupled to the intake port of the at least one cylinder and a throttle plate. Additionally, the engine includes a supplementary air inlet fluidly coupled to the intake port and spaced apart from the throttle valve. The supplementary air inlet is configured to receive a flow of air from a location downstream of the throttle plate when the throttle plate is in a fully closed position and the flow of air is directed into the combustion chamber through the intake port for combustion therein.

INTAKE MANIFOLD

To provide a compact intake manifold which can easily and reliably hold the flame arrester () to the base member, the base member () having the flame arrester () incorporated therein has the recessed body portion () and the annular fitting holding portion () for fitting the flame arrester () in the axial direction. The fitting holding portion () includes an abutment surface () and a fitting inner wall peripheral surface (). The flame arrester () includes a flame suppressing structure (), an outer cylinder body () surrounding the flame suppression structure (), and an elastic holder member () which covers the outer peripheral surface and both end faces of the outer cylindrical body (). The elastic holder member () has an outer peripheral fitting portion () fitted to the fitting holding portion () while being held in close contact with the outer cylindrical body (). 1. An intake manifold , comprising:a base member and a cover member, respectively made of resin and extending along an intake passage, the base member and the cover member facing each other in the radical direction of the intake passage; anda flame damper having a flame suppression structure, the flame damper incorporated in a one end side portion of the base member so as to be positioned on the intake passage, whereinthe one end side of the base member includes a recessed body portion having a substantially split cylindrical shape and a fitting holding portion integrally formed with the recessed body portion to hold the flame damper by fitting the flame damper in the axial direction so as to be able to abut against the fitting holding portion,the fitting holding portion includes an abutment surface against which the flame damper is able to abut from the side of the recessed body portion, and a fitting inner peripheral wall surface that surrounds and fits the flame damper therein,the flame damper is constituted by the flame suppression structure, an outer cylindrical body that surrounds the outer periphery ...

BYPASS CHECK VALVE AND VENTURI HAVING SAME

Check valves are disclosed and include a housing defining an internal cavity having a first seat and a second seat, and a seal member within the internal cavity translatable between a closed position against the first seat and an open position against the second seat. The second seat has a middle axis transverse to a plane of a longitudinal cross-section of the housing and has a shortest finger positioned to either the left or to the right of the middle axis. The seal member is seatable against the second seat at an angle or in a deflected position against the plurality of fingers, thereby defining a longer distance of travel to reach the closed position for a portion of the check valve disc that is associated with the position of the shortest finger relative to other portions of the check valve disc. 1. A Venturi device comprising:a housing defining a passageway having a central longitudinal axis, wherein the passageway comprises a first tapering portion coupled to a second tapering portion at a fluid junction in fluid communication with a suction port, defining a bypass port in fluid communication with the passageway located downstream of the second tapering portion, and defining a bypass check valve controlling fluid flow through the bypass port; an internal cavity having a first seat defining a closed position and a second seat comprising a plurality of fingers defining an open position that are circumferentially spaced apart about the bypass port and project into the internal chamber;', 'a check valve disc within the internal cavity that translates between a flat sealing state in the closed position, and an angled state or a deflected state against the plurality of fingers in the open position;', 'wherein the plurality of fingers has a shortest finger in a position that defines a longer distance of travel to the closed position for a first portion of the check valve disc in need thereof and has longer fingers in a position that define a shorter distance of ...

APPARATUS FOR A CHARGING SYSTEM OF AN INTERNAL COMBUSTION ENGINE

The invention relates to apparatus () for a charging system of an internal combustion engine (), comprising a housing () in which a secondary line () of an additional compressor () opens at an opening () into an air duct () of the internal combustion engine (), a closing device () in the housing () for closing the air duct () upstream of the outlet (), wherein the closing device () is arranged pivotably about a geometric axis of rotation (), and at least one spring () arranged in the housing (), wherein the spring () biases the closing device () in the closing direction, and wherein the closing device () is moved exclusively by the spring force of the spring () and the pressure condition upstream () and downstream () of the closing device (). 1131. An apparatus () for a charging system of an internal combustion engine () , comprising{'b': 2', '6', '33', '54', '5', '31, 'a housing () in which a secondary line () of an additional compressor () opens at an opening () into an air duct () of the internal combustion engine (),'}{'b': 8', '2', '5', '54', '8', '14, 'a closing device () in the housing () for closing the air duct () upstream of the outlet (), wherein the closing device () is arranged pivotably about a geometric axis of rotation (), and'}{'b': 21', '2', '21', '8', '8', '21', '55', '56', '8, 'at least one spring () arranged in the housing (), wherein the spring () biases the closing device () in the closing direction, and wherein the closing device () is moved exclusively by the spring force of the spring () and the pressure conditions upstream () and downstream () of the closing device ().'}212114. The apparatus () according to claim 1 , characterized in that the spring () is formed by a torsion spring surrounding the axis of rotation () in a spiral shape.3113148. The apparatus () according to claim 1 , characterized by a shaft () arranged along the axis of rotation () rotating with the closing device ().415713. The apparatus () according to claim 3 , ...

Vehicle servicing equipment and techniques

An automotive induction system cleaning module including a connector configured to connect in use to a supply of cleaning solution, an injector in fluid communication with the connector, and a nozzle in fluid communication with the injector, wherein the injector and nozzle are closely connected so as to minimise a fluid flow path between them.

WATER/SNOW MANAGEMENT FOR AIR INTAKE SYSTEM TO ACTIVE GRILL SYSTEM INTERFACE

An air intake assembly for a vehicle includes a vehicle-forward air intake inlet, an airflow diverter opening, and a moisture-diverting gutter surrounding a portion of the vehicle-forward air intake inlet. The moisture-diverting gutter may surround at least a top and opposed sides of the vehicle-forward air intake inlet. The assembly further includes an air intake inlet shield which may define a slope. The airflow diverter opening may be positioned below the vehicle-forward air intake inlet. 1. An air intake assembly for a vehicle , comprising:a vehicle-forward air intake inlet;an airflow diverter opening; anda moisture-diverting gutter surrounding a portion of the vehicle-forward air intake inlet.2. The assembly of claim 1 , wherein the moisture-diverting gutter surrounds at least a top and opposed sides of the vehicle-forward air intake inlet.3. The assembly of claim 1 , further including an air intake inlet shield.4. The assembly of claim 2 , wherein the air intake inlet shield defines a slope.5. The assembly of claim 2 , wherein the air intake inlet shield defines a slope of at least 0.11 (mm/mm) or 11%.6. The assembly of claim 1 , wherein the vehicle-forward air intake inlet defines a width dimension of 84.53 mm and a height dimension of 33.53 mm.7. The assembly of claim 1 , wherein the airflow diverter opening is positioned below the vehicle-forward air intake inlet.8. The assembly of claim 5 , wherein the airflow diverter opening is positioned 18.87 mm below the vehicle-forward air intake inlet.9. The assembly of claim 1 , wherein the moisture-diverting gutter is a C-channel gutter.10. The assembly of claim 7 , wherein the C-channel gutter defines a width dimension of 13.74 mm and a height dimension of 5.04 mm.11. A vehicle including the assembly of .12. An air intake assembly for a vehicle claim 1 , comprising:a vehicle-forward air intake inlet;an airflow diverter opening;a sloped air intake inlet shield; anda moisture-diverting gutter surrounding a portion ...

Check valves and venturi devices having the same

Check valves, Venturi devices and engines that include the check valves are disclosed. The check valves define an internal cavity having a first port and a second port, a first seat and a second seat, and a translatable seal disk. The first seat is proximate the first port and has a first annular seal bead, and a second annular seal bead radially inward from the first annular seal bead. The seal disk has a first sealing portion seatable against the first annular seal bead and a second sealing portion seatable against the second annular seal bead (both of a first thickness), an intermediate portion between the first and second sealing portions of a second thickness, and a lip portion defining the outer periphery of the seal disk of a third thickness. The second thickness is greater than the first thickness, and the third thickness is less than the first thickness.

AIR INTAKE APPARATUS FOR INTERNAL COMBUSTION ENGINE

In this air intake apparatus for an internal combustion engine, an external gas passage includes external gas introduction nozzles that introduce external gas into air intake pipes, and a length of each of the external gas introduction nozzles in a direction in which the external gas introduction nozzles extend is larger than an equivalent diameter of an exit of each of the external gas introduction nozzles. 1. An air intake apparatus for an internal combustion engine , comprising:a plurality of air intake pipes respectively connected to a plurality of cylinders of the internal combustion engine; andan external gas passage that distributes external gas to the plurality of air intake pipes, whereinthe external gas passage extends toward a head port of a head of the internal combustion engine connected to the air intake pipes, and includes external gas introduction nozzles that introduce the external gas into the air intake pipes, anda length of each of the external gas introduction nozzles in a direction in which the external gas introduction nozzles extend is larger than an equivalent diameter of an exit of each of the external gas introduction nozzles.2. The air intake apparatus for an internal combustion engine according to claim 1 , whereinan inner peripheral surface of each of the external gas introduction nozzles is formed in a tapered shape tapered toward the head port.3. The air intake apparatus for an internal combustion engine according to claim 1 , whereina corner of an entrance of each of the external gas introduction nozzles into which the external gas is introduced is rounded.4. The air intake apparatus for an internal combustion engine according to claim 3 , whereinthe external gas passage further includes an external gas inlet and an external gas distributor, andthe corner of the entrance in a vicinity of a boundary between the external gas distributor and each of the external gas introduction nozzles is rounded.5. The air intake apparatus for an ...

ENGINE INTAKE STRUCTURE FOR VEHICLE

An engine intake structure for an internal combustion engine () of a vehicle () comprises a vehicle body opening () formed in a front part of an engine room () of the vehicle, an intake duct member () defining an air inlet (A) facing in a forward direction and an air passage extending rearward from the air inlet, the air inlet being positioned higher than the vehicle body opening, and a flow obstructing member () typically consisting of an auxiliary device such as a horn positioned in a straight path extending from the vehicle body opening to the air inlet. 1. An engine intake structure for an internal combustion engine of a vehicle , comprising:a vehicle body opening formed in a front part of an engine room of the vehicle;an intake duct member defining an air inlet facing in a forward direction and an air passage extending rearward from the air inlet, the air inlet being positioned higher than the vehicle body opening; anda flow obstructing member positioned in a straight path extending from the vehicle body opening to the air inlet.2. The engine intake structure according to claim 1 , wherein the flow obstructing member comprises an auxiliary device of the vehicle.3. The engine intake structure according to claim 2 , wherein the auxiliary device comprises a horn.4. The engine intake structure according to claim 1 , further comprising a radiator provided in a front part of the engine room claim 1 , and a cover member covering an upper part of a space defined between the vehicle body opening and the radiator claim 1 , wherein the cover member is formed with a downward recess which is open in a rear end thereof and has an opening passed through the cover member in a front end thereof claim 1 , and the intake duct member is at least partly received in the recess.5. The engine intake structure according to claim 4 , wherein the recess is provided with a bottom wall and a front wall claim 4 , and the air inlet is spaced rearward from the front wall claim 4 , and the ...

A bypass check valve and venturi devices having the same

Bypass check valves, suitable for bypassing a Venturi gap, are disclosed and include a housing defining an internal cavity having a first seat and a second seat, and a seal member within the internal cavity translatable between a closed position against the first seat and an open position against the second seat. The second seat defines a support structure having a middle region of a predetermine height and a downstream side having a height that is shorter than the predetermined height of the middle region. The seal member is seatable against the second seat with a downstream portion thereof a further distance from the first seat than an upstream portion thereof.

Check valves and Venturi devices having the same

Check valves, Venturi devices and engines that include the check valves are disclosed. The check valves define an internal cavity having a first port and a second port, a first seat and a second seat, and a translatable seal disk. The first seat is proximate the first port and has a first annular seal bead, and a second annular seal bead radially inward from the first annular seal bead. The seal disk has a first sealing portion seatable against the first annular seal bead and a second sealing portion seatable against the second annular seal bead (both of a first thickness), an intermediate portion between the first and second sealing portions of a second thickness, and a lip portion defining the outer periphery of the seal disk of a third thickness. The second thickness is greater than the first thickness, and the third thickness is less than the first thickness.

check valves and venturi devices having the same

válvulas de retenção, dispositivos venturi e motores que incluem as válvulas de retenção são descritos. as válvulas de retenção definem uma cavidade interna com um primeiro orifício e um segundo orifício, uma primeira sede e uma segunda sede e um disco de vedação transladável. a primeira sede está próxima do primeiro orifício e tem um primeiro cordão de vedação anelar e um segundo cordão de vedação anelar radialmente para dentro a partir do primeiro cordão de vedação anelar. o disco de vedação tem uma primeira porção de vedação acomodável contra o primeiro rebordo anelar e uma segunda porção de vedação assente contra o segundo cordão de vedação anelar (ambos de uma primeira espessura), uma porção intermediária entre a primeira e a segunda porções de vedação de uma segunda espessura, e uma porção de aba que define a periferia externa do disco de vedação de uma terceira espessura. a segunda espessura é maior que a primeira espessura e a terceira espessura é menor que a primeira espessura. Check valves, venturi devices and motors including check valves are described. Check valves define an inner cavity with a first and a second orifice, a first seat and a second seat, and a translatable sealing disc. the first seat is close to the first hole and has a first annular sealing cord and a second annular sealing radially inwardly from the first annular sealing cord. the sealing disc has a first sealing portion accommodating against the first annular lip and a second sealing portion resting against the second annular sealing cord (both of a first thickness), an intermediate portion between the first and second sealing portions. of a second thickness, and a flap portion defining the outer periphery of the sealing disc of a third thickness. the second thickness is greater than the first thickness and the third thickness is less than the first thickness.

Bypass check valve and Venturi having same

Check valves are disclosed and include a housing defining an internal cavity having a first seat and a second seat, and a seal member within the internal cavity translatable between a closed position against the first seat and an open position against the second seat. The second seat has a middle axis transverse to a plane of a longitudinal cross-section of the housing and has a shortest finger positioned to either the left or to the right of the middle axis. The seal member is seatable against the second seat at an angle or in a deflected position against the plurality of fingers, thereby defining a longer distance of travel to reach the closed position for a portion of the check valve disc that is associated with the position of the shortest finger relative to other portions of the check valve disc.

Check valves and venturi devices having the same

Check valves, Venturi devices and engines having such check valves, define an internal cavity having a first port and a second port, a first seat and a second seat, and a translatable seal disk. The check valves have an outlet conduit extending from the second port and/or the first seat has a first annular seal bead and a second annular seal bead disposed radially inward of the first annular seal bead with a plurality of ribs extending between the first annular seal bead and the second annular seal bead within the fluid flow path of the first port. The outlet conduit defines an outlet passageway having a restrictor profile that is circular in a transverse profile, and the ribs decrease the flow area of the fluid flow path of the first port by about 10% to about 60%.

旁通止回阀以及具有该旁通止回阀的文丘里装置

本申请公开了适合于绕过文丘里间隙的旁通止回阀，其包括：壳体，其限定了内空腔，所述内空腔具有第一座和第二座；以及密封部件，其位于所述内空腔内，能够在抵靠所述第一座的闭合位置与抵靠第二座的打开位置之间平移。第二座限定了具有预定高度的中间区域的支撑结构以及具有其高度比中间区域的预定高度小的下游侧。密封部件能够抵靠座安置，其下游部分比其上游部分更远离第一座。

旁通止回阀以及具有该旁通止回阀的文丘里装置

本申请公开了适合于绕过文丘里间隙的旁通止回阀，其包括：壳体，其限定了内空腔，所述内空腔具有第一座和第二座；以及密封部件，其位于所述内空腔内，能够在抵靠所述第一座的闭合位置与抵靠第二座的打开位置之间平移。第二座限定了具有预定高度的中间区域的支撑结构以及具有其高度比中间区域的预定高度小的下游侧。密封部件能够抵靠座安置，其下游部分比其上游部分更远离第一座。

Bypass check valve and venturi devices having the same

Bypass check valves, suitable for bypassing a Venturi gap, are disclosed and include a housing defining an internal cavity having a first seat and a second seat, and a seal member within the internal cavity translatable between a closed position against the first seat and an open position against the second seat. The second seat defines a support structure having a middle region of a predetermine height and a downstream side having a height that is shorter than the predetermined height of the middle region. The seal member is seatable against the second seat with a downstream portion thereof a further distance from the first seat than an upstream portion thereof.

Bypass check valve and the Venturi with the bypass check valve

This application discloses the bypass check valve being suitable for around venturi gap, it includes：Housing, which defines internal cavity, the internal cavity has First and second；And seal member, it is located in the internal cavity, can be translated between the closing position against the First and the open position against second.Second supporting structure for defining the intermediate region with predetermined altitude and with its height downstream smaller than the predetermined altitude of intermediate region.Seal member can leaning seat placement, downstream part than its upstream portion further from First.

Exhaust gas recirculation system for an internal combustion engine and method for operating such an exhaust gas recirculation system

Abgasrückführungssystem für eine Verbrennungskraftmaschine 1, wobei das Abgasrückführungssystem folgendes aufweist: eine Luftzuführleitung 4, eine Abgasleitung 5, eine Abgasrückführleitung 16, die von einer AGR-Abzweigstelle 15 in der Abgasleitung 5 zu einer AGR-Einleitstelle 17 in der Luftzuführleitung 4 führt, und einer Drosselklappe 11 innerhalb der Luftzuführleitung 4 stromab der AGR-Einleitstelle 17, wobei eine absperrbare Bypassleitung 21 für Frischluft vorgesehen ist, die zu einer Bypass-Einleitstelle 23 in der Luftzuführleitung 4 stromab der Drosselklappe 11 führt. Exhaust gas recirculation system for an internal combustion engine 1, wherein the exhaust gas recirculation system comprises an air supply line 4, an exhaust pipe 5, an exhaust gas recirculation line 16, which leads from an EGR branch point 15 in the exhaust pipe 5 to an EGR introduction point 17 in the air supply line 4, and a throttle valve 11 within the air supply line 4 downstream of the EGR discharge point 17, wherein a lockable bypass line 21 is provided for fresh air, which leads to a bypass introduction point 23 in the air supply line 4 downstream of the throttle valve 11.

Check valve and venturi device having the same

체크 밸브, 벤투리 장치 및 체크 밸브가 포함된 엔진이 개시된다. 체크 밸브는 제1 포트 및 제2 포트, 제1 시트 및 제2 시트, 및 병진 이동 가능한 시일 디스크를 갖는 내부 캐비티를 한정한다. 제1 시트는 제1 포트에 근접하고 제1 환형 시일 비드 및 제1 환형 시일 비드로부터 반경 방향 내측의 제2 환형 시일 비드를 갖는다. 시일 디스크는 제1 환형 시일 비드에 대해 안착 가능한 제1 밀봉 부분과 제2 환형 시일 비드에 대해 안착 가능한 제2 밀봉 부분(둘 다 제1 두께를 가짐), 제1 및 제2 밀봉 부분 사이의 중간 부분(제2 두께), 및 시일 디스크의 외주를 한정하는 립 부분(제3 두께)을 가진다. 제2 두께는 제1 두께보다 크며, 제3 두께는 제1 두께보다 작다. An engine comprising a check valve, a venturi device and a check valve is disclosed. The check valve defines an inner cavity having a first port and a second port, a first seat and a second seat, and a seal disk that is translatable. The first sheet has a first annular seal bead proximate the first port and a second annular seal bead radially inward from the first annular seal bead. The seal disc comprises a first sealing portion seatable against the first annular seal bead, a second sealing portion seatable against the second annular seal bead (both having a first thickness), and an intermediate between the first and second sealing portions. It has a portion (second thickness), and a lip portion (third thickness) defining the outer periphery of the seal disk. The second thickness is greater than the first thickness, and the third thickness is less than the first thickness.

Engine system and method for engine (options)

FIELD: internal combustion engines. SUBSTANCE: invention can be used in internal combustion engines. Engine (12) system (10) comprises aspirator (80) with a suction outlet in aspirator (80) neck, a suction outlet in the expanding conical nozzle of the aspirator, and a suction outlet in a straight tube downstream of the expanding conical tube. Aspirator inlet (80) is connected to the atmosphere, and the outlet of mixed aspirator (80) flow is connected to a vacuum source. Suction outlet in the throat and the suction outlet in the straight tube are connected to the vacuum tank (38) through parallel suction channels, which are connected to a single channel downstream of the vacuum source. Suction outlet in the expanding conical branch pipe is connected to fuel vapor reservoir (63). Shut-off valve is located in each channel. Invention discloses versions of described method for engine. EFFECT: technical result consists in increased vacuum, intensity of the suction flow. 19 cl, 13 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 659 634 C2 (51) МПК F01M 13/02 (2006.01) F02M 25/08 (2006.01) F02M 35/10 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК B60K 25/04 (2018.02); B60T 17/02 (2018.02); F01M 13/02 (2018.02); F01M 13/04 (2018.02); F02M 25/08 (2018.02); F02M 35/10 (2018.02); F02M 35/10229 (2018.02); F02M 35/1272 (2018.02); F04F 5/14 (2018.02); F04F 5/52 (2018.02) (21)(22) Заявка: 2014142879, 23.10.2014 23.10.2014 03.07.2018 Приоритет(ы): (30) Конвенционный приоритет: (56) Список документов, цитированных в отчете о поиске: US 6227177 B1, 08.05.2001. US 2006/ 24.10.2013 US 14/062,323 (43) Дата публикации заявки: 20.05.2016 Бюл. № 14 0016477 A1, 26.01.2006. JP 63055357 A, 09.03.1988. RU 2157910 C2, 20.10.2000. US 2011/ 132311 A1, 09.06.2011. 2 6 5 9 6 3 4 R U Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, строение 3, ООО "Юридическая фирма Городисский и Партнеры" (54) СИСТЕМА ДВИГАТЕЛЯ И СПОСОБ ДЛЯ ДВИГАТЕЛЯ ...

Breather device in ship propulsion device

V-type 2-cycle internal-combustion engine for autobicycle

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Air leading type two-stroke engine and intake system for same, and carburetor

An amount of air taken into an air leading type two-stroke engine is increased to enhance an engine output, and gas emission characteristic deterioration caused by blow-back is inhibited. An inhibition member 16 is disposed between a choke valve 4 in a full open position and a throttle valve 6 in a full open position. The inhibition member 16 includes, for example, a mesh member like a metal mesh. Mixed fuel containing oil is supplied to the air-fuel mixture channel 14. Numerous pores of the inhibition member 16 (mesh member) are occluded by a membrane of oil components of the mixed fuel. Consequently, entry of a blow-back flow of an air-fuel mixture from the air-fuel mixture channel 14 into the air channel 12 through the numerous pores of the flow inhibition member 16 (mesh member) can be inhibited.

Air cleaner device for motor cycle

Patent RU2014142879A3

ВУ’? 2014142879” АЗ Дата публикации: 02.04.2018 Форма № 18 ИЗ,ПМ-2011 Федеральная служба по интеллектуальной собственности Федеральное государственное бюджетное учреждение ж Я «Федеральный институт промышленной собственности» (ФИПС) ОТЧЕТ О ПОИСКЕ 1. . ИДЕНТИФИКАЦИЯ ЗАЯВКИ Регистрационный номер Дата подачи 2014142879/06(069266) 23.10.2014 Приоритет установлен по дате: [ ] подачи заявки [ ] поступления дополнительных материалов от к ранее поданной заявке № [ ] приоритета по первоначальной заявке № из которой данная заявка выделена [ ] подачи первоначальной заявки № из которой данная заявка выделена [ ] подачи ранее поданной заявки № [Х] подачи первой(ых) заявки(ок) в государстве-участнике Парижской конвенции (31) Номер первой(ых) заявки(ок) (32) Дата подачи первой(ых) заявки(ок) (33) Код страны 1. 14/062,323 24.10.2013 05 Название изобретения (полезной модели): [Х] - как заявлено; [ ] - уточненное (см. Примечания) СИСТЕМА ДВИГАТЕЛЯ И СПОСОБ ДЛЯ ДВИГАТЕЛЯ (ВАРИАНТЫ) Заявитель: ФОРД ГЛОУБАЛ ТЕКНОЛОДЖИЗ, ЭлЭлСи, 05 2. ЕДИНСТВО ИЗОБРЕТЕНИЯ [Х] соблюдено [ ] не соблюдено. Пояснения: см. Примечания 3. ФОРМУЛА ИЗОБРЕТЕНИЯ: [Х] приняты во внимание все пункты (см. Примечания) [ ] приняты во внимание следующие пункты: [ ] принята во внимание измененная формула изобретения (см. Примечания) 4. КЛАССИФИКАЦИЯ ОБЪЕКТА ИЗОБРЕТЕНИЯ (ПОЛЕЗНОЙ МОДЕЛИ) (Указываются индексы МПК и индикатор текущей версии) ЕО1М 13/02 (2006.01) Е02М 25/08 (2006.01) Е02М 35/10 (2006.01) 5. ОБЛАСТЬ ПОИСКА 5.1 Проверенный минимум документации РСТ (указывается индексами МПК) в01М11/00-201М11/08, Е01М13/00-Е01М13/06, В02М25/00- #02М25/14, Е02М26/00- 802М26/74, Е02МЗ5/00-Е02МЗ5/116, Е02В47/00-Е02В47/10, Е02021/00-Е02021/10 802041/00-Е02041/22, Е02243/00-Е02043/04, Е02045/00, Е04Е5/00-Е04Р5/54, В6ОК25/00- В60К25/10, В6ОТ17/00-В60Т17/22 5.2 Другая проверенная документация в той мере, в какой она включена в поисковые подборки: 5.3 Электронные базы данных, использованные при поиске (название базы, и если, возможно, ...

Auxiliary intake devices of engines

본 발명은 기술된 엔진의 흡기장치, 특히 급가속시에 작동되는 보조흡기장치에 관한 것이다. The present invention relates to an intake apparatus of the described engine, in particular an auxiliary intake apparatus which is operated during rapid acceleration. 본 발명은 대용량의 배기가스 제순환 밸브를 통하지 않고 엔진의 급가속에 따른 펌프손실을 충분히 보상하면서 엔진출력을 증대시킬 수 있도록 하기 위하여, 흡기 매니폴드의 각 분지관에 역류방지 체크 밸브가 설치된 보조 흡기통로를 개설하고, 흡기통로의 입구에는 공기의 추가공급이 가능한 보조 에어 크리너를 설치하며, 보조 에어 크리너의 출구측 보조 흡기통로에는 써지 탱크의 부압에 따라 보조 흡기통로를 개방시킬 수 있는 에어 밸브를 설치하고, 에어 밸브와 써지 탱크 간의 바이패스통로에는 전자제어유니트의 급가속 판정조건에서 바이패스통로를 개방시킬 수 있는 솔레노이드 밸브를 설치한 것이다. The present invention provides an auxiliary non-return check valve installed in each branch pipe of the intake manifold so that the engine output can be increased while sufficiently compensating for the pump loss due to the rapid acceleration of the engine without passing through the large-capacity exhaust gas recirculation valve. An intake passage is established, and an auxiliary air cleaner capable of supplying additional air is installed at the inlet of the intake passage, and an air valve that can open the auxiliary intake passage according to the negative pressure of the surge tank is installed at the outlet side of the auxiliary air cleaner. In the bypass passage between the air valve and the surge tank, a solenoid valve is installed to open the bypass passage under the sudden acceleration judgment condition of the electronic control unit.

Bypass check valve and venturi device having the same

本申请公开了一种旁通止回阀以及具有该旁通止回阀的文丘里装置。所述旁通止回阀，其包括：壳体，其限定了内空腔，所述内空腔具有第一座和第二座；以及密封部件，其位于所述内空腔内，能够在抵靠所述第一座的闭合位置与抵靠第二座的打开位置之间平移。第二座限定了具有预定高度的中间区域的支撑结构以及具有其高度比中间区域的预定高度小的下游侧。密封部件能够抵靠座安置，其下游部分比其上游部分更远离第一座。

A bypass check valve and venturi devices having the same

INTERNAL COMBUSTION ENGINE INTAKE INSTALLATION

Process for controlling auto ignition in a four stroke engine

The method involves of varying the opening and closing of combustion chamber inlet and exhaust valves as a function of the load on the engine, and a prolonged retention of the burned gases in the combustion chamber prior to admitting a fresh charge, minimising the mixing of the fresh and burned gases. The retention of burned gases in the combustion chamber is carried out by delaying the closure of the exhaust valve to beyond the piston tdc point or preventing its opening before bdc, and restricting the duration for which the exhaust valve is open to only a portion of the piston's upward travel. The procedure can be applied, for example, by installing a variable throttle (10) in the exhaust duct (2) after the exhaust valve (12).

ANTI-NOISE DEVICE FOR THE AIR INTAKE DUCT OF A SUPERIOR INTERNAL COMBUSTION ENGINE

Dispositif anti-bruit pour un moteur à combustion interne équipé d'un turbo compresseur de suralimentation constitué par une turbine placée dans le flux des gaz d'échappement sortant de ce moteur de façon à être entraînée par ces gaz et relié par un arbre à un compresseur monté dans le conduit d'admission d'air (3) du moteur, caractérisé en ce qu' il est constitué par un volet articulé (4) monté dans le conduit d'admission d'air (3) du moteur en amont du compresseur et susceptible de fermer ce conduit (3) sous l'action d'un reflux gazeux vers celui-ci. An anti-noise device for an internal combustion engine equipped with a turbo supercharger consisting of a turbine placed in the flow of exhaust gases leaving the engine so as to be driven by these gases and connected by a shaft to a compressor mounted in the air intake duct (3) of the engine, characterized in that it consists of an articulated flap (4) mounted in the air intake duct (3) of the engine upstream of the engine. compressor and capable of closing the conduit (3) under the action of a gas reflux to it.

Air supply installation for internal combustion engine, has air collector comprising air guide installation that extends until half of admission tube so that half of tube is covered by guide installation

The installation (10) has an air collector (13) comprising an air guide installation (15) that is provided opposite to an admission tube (11). The installation (15) extends until half of the admission tube in order to cover half of the admission tube. The installation (15) is formed by a plate comprising a free end (20) supported by a support (21) connected to a base of the collector.

INTAKE MANIFOLD FOR INTERNAL COMBUSTION ENGINE

Collecteur d'admission (1) pour moteur à combustion interne multicylindre comprenant un corps (2) présentant un orifice latéral d'entrée (6) et une pluralité de tubulures (3) destinées à alimenter les conduits d'admission correspondants ménagés dans la culasse du moteur, caractérisé en ce que ledit corps (2) comprend une chambre amont et une chambre aval parcourues successivement par les gaz d'admission, lesdites chambres communiquant entre elles par une ouverture oblongue de section adaptée. Intake manifold (1) for a multi-cylinder internal combustion engine comprising a body (2) having a lateral inlet port (6) and a plurality of pipes (3) intended to supply the corresponding intake ducts formed in the cylinder head of the engine, characterized in that said body (2) comprises an upstream chamber and a downstream chamber through which the inlet gases pass successively, said chambers communicating with each other via an oblong opening of suitable section.

METHOD AND DEVICE FOR CONTROLLING AIR AT THE INTAKE OF A 4-TIME ENGINE WITH COMMAND IGNITION

- L'invention concerne un dispositif de contrôle de l'air à l'admission d'un moteur 4 temps à allumage commandé et à injection directe de carburant dans la chambre de combustion (1), comprenant un conduit principal (2) équipé d'un moyen de vannage (9), au moins un premier (3) et un deuxième (4) conduits d'admission issus du conduit principal (2) et débouchant chacun dans la chambre de combustion (1), un conduit (7) de recyclage des gaz d'échappement à l'admission équipé d'un moyen de vannage (8) et qui débouche en aval du moyen de vannage (9) du conduit principal et un moyen de contrôle du débit d'air fourni à la chambre de combustion. Selon l'invention, ledit moyen de contrôle du débit d'air comprend un conduit (10) disposé en dérivation sur ledit conduit principal (2), autour de son moyen de vannage (9) ledit conduit (10) ayant une section sensiblement égale à celle du conduit principal (2), et un moyen (11, 12) permettant d'obturer au moins ledit conduit de dérivation (10) en fonction des conditions de fonctionnement du moteur. - L'invention vise en outre le procédé mis en oeuvre par un tel dispositif. - The invention relates to a device for controlling the air at the intake of a 4-stroke engine with controlled ignition and direct injection of fuel into the combustion chamber (1), comprising a main duct (2) equipped with '' a valve means (9), at least a first (3) and a second (4) intake ducts from the main duct (2) and each opening into the combustion chamber (1), a duct (7) inlet exhaust gas recirculation equipped with a valve means (8) and which opens downstream of the valve means (9) of the main duct and a means of controlling the flow of air supplied to the chamber combustion. According to the invention, said air flow control means comprises a duct (10) arranged as a bypass on said main duct (2), around its valve means (9) said duct (10) having a substantially equal section to that of the main ...

INTAKE MANIFOLD FOR INTERNAL COMBUSTION ENGINE

Flame arrester arrangement for e.g. diesel engine, has flame arresters arranged at outlets of inlet and exhaust ports to extinguish flame before spreading outside of cylinder head, and having gas flow areas greater than that of ports

The arrangement has a combustion chamber (22) connected to intake and exhaust ducts (24A, 24E) that open towards the exterior by respective intake and exhaust ports (26A, 26E). Flame arresters (30A, 30E) are arranged at outlets of the respective ports so that flame exits from the chamber via the ports and extinguishes before spreading outside a cylinder head (14). Gas flow areas of the arrestors are greater than that of the ports.

By-pass one-way valve and venturi device having the same

Fuel injection type multiple cylinder engine unit

A fuel injection type multiple cylinder engine unit includes an oil lubricating device including an oil tank and the oil in the oil tank is pumped up by a pump having an oil drain side to which pipes are connected for supplying the oil near the injectors. Each of the pipe has a front nozzle portion disposed at a portion near the front fuel jetting end of the injector and the fuel and the oil independently injected in an intake device of the engine unit are atomized and mixed with suitable mixture ratio. The intake device of the engine unit is provided with a surge tank which comprises a main surge tank formed integrally with an inlet manifold and sub-surge tanks formed by forming recesses between the respective adjacent intake pipes in association with the inlet manifold. The main surge tank and the sub-surge tanks are communicated with each other to thereby increase the total inner volume of the surge tank.

Induction system for engine

A number of embodiments of induction system for fuel injected outboard motors. In each embodiment the fuel injectors are bounded on at least two sides by the induction system so that the airflow through the induction system will cool the fuel injectors.

Timed tube induction system for improving the performance and efficiency of an internal combustion engine

A timed tube induction system according to the present invention is located at the downstream side of the carburetor in fluid communication with an induction hose between the carburetor and the intake manifold of an internal combustion engine having an intake valve. A gas capture end of the tube is located adjacent the intake valve and attached to the intake manifold to capture the backflow combustion mixture gases when the intake valve closes. The backflow gases flow through the tube and are injected into the fuel-air mixture exiting the carburetor at an injector end of the tube. The injector end of the tube is mounted to the induction hose to provide an acute angle between gas flowing along the centerline of the tube and gas flowing along the centerline of the induction hose to increase the velocity of gas flowing toward the intake manifold. The tube is adjustable in length so that the pulsating air flow in the tube can be timed with the opening of the intake valve over a broad range of engine rpm.

Charger for internal combustion engines

Es wird ein Lader (5) für einen Verbrennungsmotor (1), umfassend einen Turboverdichter (6) mit wenigstens einem Verdichterlaufrad (17) und einer Saugseite (13) sowie einer Druckseite (12), eine Schwungmasse (7) zum Speichern von Antriebsenergie, einen Hilfsmotor (8) zum Antreiben des Verdichterlaufrades (17) und der Schwungmasse (7) sowie ein auf der Saugseite (13) des Turboverdichters (6) angeordnetes erstes Absperrorgan (10) beschrieben. Diese Vorrichtung soll kurzzeitig Ladedruck für einen Verbrennungsmotor (1) bereitstellen, um z. B. ein Turboloch eines Abgasturboladers (2), der an einem Verbrennungsmotor (1) als Hauptlader eingesetzt wird, zu überbrücken. Zur Lösung dieser Aufgabe wird vorgeschlagen, das Verdichterlaufrad (17) des Turboverdichters (6) ständig anzutreiben, in der Betriebsphase, in welcher der Lader (5) keinen Ladedruck bereitstellen muss, das erste Absperrorgan (10) zu schließen und den saugseitigen Verdichterluftraum (18) mittels der eigenen Verdichtungsleistung des Turboverdichters (6) zu evakuieren. In Betriebsphasen, in denen der Lader (5) Ladedruck bereitstellen muss, wird das erste Absperrorgan (10) geöffnet und der Hilfsmotor (8) wird beim Antreiben des Verdichterlaufrades (17) des Turboverdichters (6) 7) gespeichert ist, unterstützt.

Supplementary air assembly for an engine

An internal combustion engine includes a crankcase including a crankshaft and at least one cylinder coupled to the crankcase. The at least one cylinder has an intake port and defines an internal combustion chamber. The engine further includes a throttle body assembly with a throttle valve coupled to the intake port of the at least one cylinder and a throttle plate. Additionally, the engine includes a supplementary air inlet fluidly coupled to the intake port and spaced apart from the throttle valve. The supplementary air inlet is configured to receive a flow of air from a location downstream of the throttle plate when the throttle plate is in a fully closed position and the flow of air is directed into the combustion chamber through the intake port for combustion therein.

Internal combustion engine, motor vehicle comprising same, and method for operating an internal combustion engine

An internal combustion engine has two cylinder banks, an electrical compressor, and at least one turbocharger, in which a first shut-off valve, which is arranged in the line leading from an e-compressor outlet to air-collecting devices of the cylinder banks, can at least release and block a throughflow through the line. A method operates the internal combustion engine, by which the internal combustion chamber is operated symmetrically or asymmetrically, depending on the engine speed.

Check valve and venturi device having a check valve

一种止回阀、包括止回阀的文丘里装置和发动机。止回阀限定了具有第一端口和第二端口的内部腔体、第一座和第二座，以及可平移的密封圆盘。第一座靠近第一端口并且具有第一环形密封凸缘和从第一环形密封凸缘径向向内的第二环形密封凸缘。密封圆盘具有：可抵靠第一环形密封凸缘安置的第一密封部分和可抵靠第二环形密封凸缘(两者均具有第一厚度)安置的第二密封部分；在第一密封部分与第二密封部分之间的具有第二厚度的中间部分；以及限定密封圆盘的外周边并且具有小于所述第一厚度的第三厚度的唇部。第二厚度大于第一厚度，第三厚度小于第一厚度。

Fuel vapor adsorption device for internal combustion engine

Patent FR2389766A1

L'invention concerne un moteur deux temps monocylindrique à admission par clapet dans le carter par l'intermédiaire d'un carburateur et d'une tubulure d'admission, les organes de ce moteur étant compris entre deux plans relativement rapprochés perpendiculaires à l'axe du vilebrequin du moteur. L'axe d'écoulement du carburateur est sensiblement parallèle à l'axe du vilebrequin, le clapet d'admission est un clapet à écoulement symétrique et l'axe du clapet et de la partie aval de la tubulure d'admission forme un certain angle avec les plans perpendiculaires à l'axe du vilebrequin. The invention relates to a single-cylinder two-stroke engine with intake by valve in the crankcase via a carburetor and an intake manifold, the components of this engine being between two relatively close planes perpendicular to the axis. of the engine crankshaft. The flow axis of the carburetor is substantially parallel to the axis of the crankshaft, the intake valve is a symmetrical flow valve and the axis of the valve and the downstream part of the intake manifold forms a certain angle with the planes perpendicular to the axis of the crankshaft.

Engine and engine working machine

本发明公开一种发动机和发动机工作机，该发动机包括：气缸体，其内置有能够往复运动的活塞；汽化器，其构造成将空气燃料混合物供应到气缸体中；曲轴箱，其形成有曲轴室；舌簧阀，其由磁性材料制成并设置在空气燃料混合物通道中，空气燃料混合物从空气燃料混合物通道通过；电磁体，其包括具有与所述舌簧阀面对的至少两个磁极件的铁芯，以及缠绕在所述铁芯的一部分周围的线圈；以及控制单元，其构造成控制所述电磁体。

Dry air filter element

An annular air filter comprises a rectangular lamina folded longitudinally and pleated, the ends being joined together to form a round flat filter with large surface area to volume ratio, narrow at its external circumference with a wide internal zone sealing into a perforated gauze cylinder housed airtight between two flat sheels fitted with a plurality of inlet vents. Raw air is purified at the exterior filter surface and passes via the gauze cylinder to an axial outlet duct and thence to the air utilisation point. Vibrations occuring at the installation effectively declog the filter surface.

Quick disconnect coupling for fluid flow connections

A quick disconnect coupling is disclosed for releasably interconnecting first and second fluid flow members each having a fluid opening. The coupling includes a base member having a bottom surface, an annular attachment collar defining an inner fluid port axially through the base member and including an outer cylindrical side wall, and an annular shoulder surrounding the attachment collar. A mechanism is provided for mounting the base member bottom surface to the first fluid flow member in order to align the fluid port with the fluid opening of the first fluid flow member. A connecting plate is further provided having a top and bottom surface and a central aperture defining an inner cylindrical sleeve sized for journaling about the collar side wall for limited rotation thereabout. The connecting plate also includes an inner annular shoulder disposed along the bottom surface radially outwardly of the sleeve, the connecting plate upper surface being adapted for connection to the second fluid flow member. A spring device is positioned on the base member annular shoulder and is adapted for resilient compression between the annular shoulders when the connecting plate is journaled about the attachment collar. Finally, a locking mechanism releasably locks the connecting plate to the base member and includes art interacting tongue and groove assembly adapted interengagement upon rotation of the plate about the collar with the spring means biasing the plate axially away from the base member to exert an axial force against the tongue and groove assembly.

Filter

Spiral-flow type spark arrester

本发明公开了一种旋流式阻火器，其包括阻火片和外壳体；阻火片包括均呈带状的平滑带和阻火带，阻火带上压制有沿其长度方向依次排布的条形状斜波纹，条形状斜波纹倾斜于阻火带的长度方向设置，平滑带与阻火带叠合并盘卷成圆盘状结构；阻火片设于外壳体内。这样，通过在阻火带上压制条形状斜波纹，由于条形状斜波纹倾斜于阻火带的长度方向设置，这样阻火带与平滑带之间形成的气流通道就不会与阻火片的轴线方向平行或共面，从而使得气流通道与爆炸气流流通的方向不一致，进而在气流方向上形成迎火面，爆炸时，高温高速的气流对迎火面产生高速率的撞击而使能量快速得到衰减，迎火面能有效抵抗高速率的冲击，大大提高阻火防爆的效果。

Method and apparatus for addressing blow-back when hydrogen generators are attached to combustion engines to enhance performance

A method and associated apparatus are described for addressing blow-back when a hydrogen generator is attached to a combustion engine to enhance performance. The method involves positioning a filter with a porous flame tolerant core upstream of the combustion engine on a supply line leading from the hydrogen generator to the combustion engine. The method also involves surrounding the porous flame tolerant core with a hydrophilic filter medium. The hydrophilic filter medium serves as a trap for water vapour passing through the filter in a first direction and the hydrophilic filter medium moistened by water vapour assists in retarding flames passing through the filter in a second direction.

Supplementary air assembly for an engine

Intake passage structure for an internal combustion engine

An intake passage structure for an internal combustion engine has a first passage portion where a throttle valve is disposed and a second passage portion, downstream of the fist passage portion, where a mesh member is disposed. A relationship S 1 ≦αS 2 holds between a cross-sectional area S 1 of the first passage portion and a cross-sectional area S 2 of the second passage portion where α is an open area rate of the mesh member. A clearance may be provided between a periphery of the mesh member and an inside surface of the intake pipe where the mesh member is disposed.

Intake passage structure for engine

An air intake passage (30) has a third passage (37) that connects an intercooler (36) and a bottom portion of a surge tank (38) such that the intercooler (36) is positioned below the surge tank (38). A pair of wall portions (71, 72) configured to catch moisture is formed in a section from an upstream end portion of the third passage (37) to a connected portion between said third passage (37) and the surge tank (38).

Internal combustion engine

Brennkraftmaschine mit einer Kurbelgehäuseentlüftung unter Anwendung eines PCV-Systems, wobei Blow-By-Gase von einem Kurbelgehäuse ausgehend zunächst zu einem PCV-Ventil geführt werden und wobei im weiteren Strömungsweg zwischen dem PCV-Ventil und dem Eintritt der Blow-By-Gase in mehrere Einlasskanäle (2) der Brennkraftmaschine eine Baugruppe mit einer Kanalstruktur angeordnet ist, dadurch gekennzeichnet, dass sämtliche Bauteile der Kurbelgehäuseentlüftung vollständig innerhalb eines Motorgehäuses der Brennkraftmaschine angeordnet sind und die Kurbelgehäuseentlüftung in einem Zylinderkopf (5) der Brennkraftmaschine als Bohrung (4) ausgestaltet ist, die über Stichbohrungen (6) mit den Einlasskanälen (2) in Wirkverbindung steht. Internal combustion engine with a crankcase ventilation using a PCV system, wherein blow-by gases are initially conducted from a crankcase to a PCV valve and wherein in the further flow path between the PCV valve and the entry of the blow-by gases into several Inlet ducts (2) of the internal combustion engine, an assembly is arranged with a channel structure, characterized in that all components of the crankcase ventilation are arranged completely within a motor housing of the internal combustion engine and the crankcase ventilation in a cylinder head (5) of the internal combustion engine as a bore (4) is designed via tap holes (6) with the inlet channels (2) is in operative connection.

A bypass check valve and venturi devices having the same

Patent FR2389766B1

Fuel and air induction structure and mechanism for internal combustion engines

Docket 4438 Abstract of The Disclosure Structure and a method for introduction of a mixture of fuel and air into the combustion chambers of an internal combustion engine which has a plurality of combustion chambers. Each combustion chamber having an intake port region which leads to the combustion chamber. The structure has an inlet manifold which has fluid communication with the intake port region of each of the combustion chambers. The structure also has an outlet manifold which has fluid communication with the intake port region of each of the combustion chambers. A fluid pump forces continuous circulation of the mixture of fuel and air flows from one manifold to the other manifold as the two manifolds are arranged in series relationship. Thus, at any given period of time, the same quantity and the same composition of fuel and air is available at all of the combustion chambers, and engine operation is enhanced. The structure also includes fluid conduit members which direct the mixture of fuel and air against the hot walls of the intake port regions for vaporization of the fuel in the mixture of fuel and air.

Control tensioner device for an engine

A control tensioner device for adjusting and maintaining the tension in a flexible linkage in an engine includes a retainer having a central passageway extending therethrough. At least a portion of the central passageway contains a first set of threads. The control tensioner device further includes an adjustment element having a second set of threads. The adjustment element is sized to be threadably received within the central passageway. The adjustment element is adapted to apply pressure on the flexible linkage to maintain the tension. The first set of threads and second set of threads are sized to permit minor relative movement between the retainer and the adjustment element. Furthermore, the first set of threads and second set of threads are sized to be borderline self-locking such that the first and second sets of threads engage in response to minor relative movement between the retainer and the adjustment element.

Air induction channel system for internal combustion engine

The air induction channel system has a storage chamber integrated in a component. The adapter forming the negative pressure store (17) has a storage chamber (18) closed off by a cover insert (19) held by the walls (20) of one of the part components (4, 5). This leads via an aperture (14) to the storage chamber. A non-return valve (12) controls this aperture.

Intake passage structure of engine

吸气通路(30)具有第3通路(37)，该第3通路(37)以中冷器(36)位于比稳压箱(38)靠下方的位置的方式将中冷器(36)和稳压箱(38)的底部连接。在从第3通路(37)的上游端部到该第3通路(37)和稳压箱(38)的连接部的区间内，形成有阻挡水分的一对壁部(71、72)。

An intake manifold relief valve

An intake manifold relief valve comprising a valve body (13) having at least two openings, one opening being an inlet (22) for gas and another opening being an outlet (23) for gas to relieve excess pressure, a piston (8) for opening and closing said gas inlet (22) and containing an orifice hole (21) to maintain a constant pressure on both sides of the piston (8) said valve body (13) also cooperating with said piston (8) to form an enclosed gas chamber the size of which is decreased as said piston (8) moves to open said valve, a piston spring (5) applying a force on said piston (8) in addition to that provided by the gas pressure within said chamber to maintain it in a closed postion under normal conditions, said piston (8) moving to open said gas inlet (22) when excess pressure with the manifold overcomes the force of said piston spring (5), thereby allowing gas to escape through said valve outlet (23); as the pressure is equalized within the valve through said orifice hole (21), said piston spring (5) will force said piston (8) back to closed position; the size of said orifice (21) being selected to determine the pressure at which the piston (8) useats and the valve opens. The spring (5) is used to return the piston (8) to a closed position and close the valve as soon as the pressure transient has passed through the outlet (23) and the oxygen in the atmosphere entering throught the exhaust opening cannot cause a secondary explosion in the valve.

Four stroke engine having power take off assembly

A four stroke internal combustion engine is disclosed having a power take off housing located at one end of the engine. A crankshaft is operatively connected to a drive shaft and the cam shaft within the power take off housing. Furthermore, the crankshaft is operatively coupled within the power take off housing to at least one of a generator, an engine starting mechanism, a balance shaft, and a supercharger.

DMB system and method for downloading BIFS stream and DMB terminal

一种用于重新下载由地面DMB系统中的DMB终端接收的错误的BIFS(场景二进制格式)流的DMB(数字多媒体广播)系统和方法，以及一种DMB终端。该方法包括：当DMB终端从DMB广播站接收到传输流时，确定传输流中包含的BIFS对象中是否产生错误；当确定BIFS对象中产生错误时，经由移动通信网络将请求重新下载错误的BIFS对象的消息发送到BIFS服务器；当BIFS服务器接收到请求下载BIFS对象的消息时，发送BIFS对象；以及当DMB终端从BIFS服务器接收到BIFS对象时，存储BIFS对象。

Four stroke engine with intake manifold

The four stroke internal engine having an air intake system connected to the cylinder head and operatively connected to the intake passageway. The air intake system includes an air intake manifold having symmetrical construction with a central air passageway extending between a first end and a second end. At least one passageway extends from the central air passageway to a free end, which is operatively coupled to the intake passageway. The air intake system is usable for both a supercharged and normally aspirated engines.

Air intake device for watercraft

To provide an air intake device for a watercraft which can suppress noise generating from an intake system of an engine and can obtain good intake efficiency. An engine has intake ports opening to a side surface of the engine. An air cleaner is located on the rear side of the engine. An outlet of the air cleaner is connected through an intake passage to the intake ports of the engine. An air duct extends from an inlet of the air cleaner along the side surface of the engine to the position corresponding to the front end of the engine. The air duct has a front opening opening downward.

Two-stroke engine

The two-stroke engine (10) has a plurality of intake passages (40a, 40b) extending from the external air inlet port through the crankcase (12), separating the intake air charge from the air and oil vapor within the crankcase (12). The piston (44) has one or more corresponding inlet tubes (48a, 48b) depending therefrom that telescope within the crankcase intake passages (40a, 40b) as the piston (44) reciprocates. All intake air travels through these passages (40a, 40b) and is separated from the remainder of the crankcase volume. The incoming air charge passes through a concentric poppet valve (52) in the piston crown (54) to enter the combustion chamber (58). Fuel is provided by conventional direct or port injection and ignition is provided by one or more conventional spark plugs. Exhaust exits the combustion chamber (58) through a poppet valve (60) in the cylinder head (18), the poppet valve (60) being actuated by a rocker arm (68) and pushrod (66) from a crankshaft driven cam (62).

ARRANGEMENT OF A FLAME PROTECTION DEVICE ON AN INTERNAL COMBUSTION ENGINE HEAD

Internal combustion engine, motor vehicle comprising same, and method for operating an internal combustion engine

The invention relates to an internal combustion engine comprising two cylinder banks (1, 2), an electrical compressor (24), and at least one turbocharger (6, 7), in which a first shut-off vave (31), which is arranged in the line (29) leading from an e-compressor outlet (28) to air-collecting devices (4, 5) of the cylinder banks (1, 2), can at least release and block a throughflow through said line (29). The invention also relates to a method for operating an internal combustion engine, by means of which the internal combustion chamber is operated symmetrically (electric compressor supplies both cylinder banks with air) or asymmetrically (electric compressor supplies only one of the two cylinder banks with air), depending on the engine speed.

Air intake muffler and outboard engine having the same

A box-shaped air intake muffler wherein upper and lower separate dish-shaped two halves mated and joined to one another. One of the halves unitarily has an air intake connecting duct to be connected to an air intake passage of a throttle valve unit of an engine. Both of the two halves have concave portions unitarily formed therewith so as to protrude outward, respectively, with respective concave portions being mated with one another to form an outside air intake duct for introducing outside air.

Fuel injection system for two cycle engine

In a two cycle internal combustion engine (2), a fuel injection system is provided with a low profile compact intake manifold (22) mounted to the crankcase (8) by an adaptor plate (24) and defining an intake air flow path in a first direction (28) behind the manifold (22) through a gap (26) between the manifold (22) and the crankcase (8) provided by the adaptor plate (24). Intake air then flows into throttle bore passages (30) from behind the manifold (22) and then reverses direction and flows through supply passages (36) having fuel injectors (38), and then into the crankcase (8). The passages share a common plenum (42) within the manifold (22). The fuel injectors (38), their electrical connectors (48) and a common rigid fuel supply rail (44) are all in the common plenum (42) entirely within the low profile manifold (22) and sealed from moisture and salt in a marine environment.

Flame arrester having helical flame arresting member

A flame arrester comprises a continuous flame arresting member in the form of a helix having offset interstices between adjacent turns of the helix. The flame arrester further comprises a mechanism for housing the flame arresting member. Upon installation of the flame arrester on a carburetor, air intake system, or any source of flammable gases, any backfire or flame passing through the flame arrester will be extinguished. A method for making the flame arresting member comprises the step of forming a plurality of projections in a continuous, flattened flame arresting material having a predetermined uniform curvature such that the material naturally forms a helix having a plurality of turns of a predetermined diameter, wherein a plane containing the width lies substantially perpendicular to the axis of the helix, the plurality of projections being formed such that they extend outwardly from the surface of the helix, and such that, when adjacent turns of the helix abut each other, offset interstices between the adjacent turns are formed.

Two-stroke engine

Exhaust gas recirculation system for an internal combustion engine and method for operating such an exhaust gas recirculation system

Gaseous fuel mixer for internal combustion engine

A gaseous fuel mixer for an internal combustion engine includes a check valve. The check valve includes a check valve member that induces mixing of a gaseous fuel flow and an intake air flow as the gaseous fuel flow and intake air flow move or pass from an upstream side of the check valve to a downstream side of the check valve.

Air scavenging-type two-cycle engine

An air scavenging-type two-cycle engine where a bearing of a crankshaft can be lubricated with gas blow-by being controlled by a simple structure. The engine has a first scavenging passage (13) communicating between a combustion chamber (1a) and a crank chamber (2a) through a bearing (81) of a crankshaft (8), a second scavenging passage (14) directly communicating between the combustion chamber (1a) and the crank chamber (2a), a suction chamber (72) formed in a side face of a piston (7), a mixture gas passage (10) through which a mixture gas (M) is sucked into the suction chamber (72), and an air passage (11) through which air (A) is introduced into the crank chamber (2a). In a suction stroke, the mixture gas (M) from the mixture gas passage (10) is introduced into the first scavenging passage (13) through the suction chamber (72), and the air (A) from the air passage (11) is introduced into the crank chamber (2a). In a scavenging stroke, before the mixture gas (M) in the first scavenging passage (13) is introduced into the combustion chamber (1a), introduction of the air (A) in the crank chamber (2a) into the combustion chamber (1a) through the second scavenging passage (14) starts.

Two-stroke cycle engine

This invention concerns a two-stroke cycle engine, more specially it concerns a two-stroke cycle engine using a preceding air-layer for scavenging. It has a scavenger passage (109d) connected to a branching scavenger passage (109d) opened to said scavenging port (9a). The engine has a connecting passage to link the air passage (10b) and the fuel passage (15) so that negative pressure in the air passage (10b) forces the fuel-air mixture in the fuel passage (15) into said air passage (10b). Further, the engine according to this invention has a removable guide (501) with a surface forming a curved smooth channel which is attachable to the scavenger passage (109d) in the crankcase (5) from the mounting surface, and forms a portion of said scavenger passage (109d) with the curved channel. The blow-up angle of the scavenger passage (109d) varies along the circumferential direction of the cylinder (2). The crankcase (5) is configured in such a way that the front and rear portions, which are separated by a block, and a scavenger passage (109d) is provided inside both said front and rear portions of said crankcase (5), and the cylinder (2). The air cleaner (1001) has two air passages (1061, 1071) running from it in parallel, the first one (1061) is connected to said air passage (10b), and the second one (1071) is connected to the air inlet of the carburetor (12) to provide air for the fuel passage (15), and a choke valve (1201) on the air cleaner (1001) is provided to open and close both of the first and second air passages (1061, 1071).

Suction valve for internal-combustion engine

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Internal combustion engine

Hydrogen engine for preventing pre-ignition

역화 방지 수소 엔진이 개시된다. 역화 방지 수소 엔진은, 일측에 공기가 유입되는 흡기 라인이 연결되고 타측에는 배기 라인이 형성되고 내부에는 왕복 운동하는 피스톤이 설치된 실린더와, 흡기 라인에 설치되어 수소 연료를 분사하는 연료 인젝터와, 연료 인젝터와 실린더의 사이에서 흡기 라인의 내부에 물을 분사하는 워터 분사기와, 차량의 부하 조건의 변경에 따라 워터 분사기의 물 분사량을 제어하는 제어부를 포함한다. Flashback prevention hydrogen engine is disclosed. The flashback prevention hydrogen engine includes a cylinder having an air inlet line connected to one side thereof, an exhaust line formed at the other side thereof, and a piston having a reciprocating piston therein; a fuel injector installed at the intake line to inject hydrogen fuel; And a water injector for injecting water into the intake line between the injector and the cylinder, and a control unit for controlling the water injection amount of the water injector according to a change in the load condition of the vehicle.

Method of casting a cylinder for a two-stroke engine

The sidewall of a cylinder 2 for a two-stroke cycle engine comprises an intake port 15a, an exhaust port 13a, a scavenging port 9a spaced in the circumferential direction from the intake and exhaust ports 15a, 13a, and a scavenger passage 109d connecting the scavenging port 9a to a crankcase 5. The blow-up angle α of the scavenger passage 109d, which is defined by the angle between the upper wall 9b, 9c connected to the scavenging port 9a and a line 451 perpendicular to the axis of the cylinder 2, varies along the circumferential direction of the cylinder 2 in step fashion from a larger angle α 2 at a location nearer the intake port 15a to a smaller angle α 1 at a location nearer the exhaust port 13a. This cylinder 2 is cast using two dies with two different blow-up angles α 1, a2, wherein the dies border one another at the location of the step in the upper wall 9b, 9c of the scavenger passage 109d.

Flue gas recirculation line for e.g. petrol engine, has inlet connected to exhaust line of internal combustion engine, where line has permeability that is higher than its permeability in opposite direction of backward flow of gases

The line (40) has an inlet (411) connected to an exhaust line of an internal combustion engine, where the line has permeability which is, in a normal direction of flow (S1) of flue gases oriented from the inlet towards its outlet, higher than its permeability considered in an opposite direction of backward flow of gases. An outlet (452) is connected to an inlet line of the internal combustion engine. A section passes flue gas, where the section has size reduced continually in the normal flow direction. An independent claim is also included for an internal combustion engine.

Internal combustion piston engine