Устройство турбонаддува двигателя внутреннего сгорания

FIELD: engines and pumps. SUBSTANCE: invention relates to the field of turbo-charge control of an internal combustion engine. Essence of the invention consists in that it comprises turbocharger (1) comprising turbine (2) and compressor (3), charge air cooler (8), air filter (14), throttle valve (11), surge valve (12), bypass valve (16), adjustable cooler (17) of the inlet air, control unit (20) and intake air temperature controller (22) combined by common information bus (21). Temperature and pressure sensors (19) installed on internal combustion engine (4) and throttle valve (11) and accelerometer sensor (18) are connected to the information inputs of control unit (20). Control output of control unit (20) is connected to bypass valve (16), surge valve (12) and intake natural air temperature controller (22), to the information inputs of which are connected the temperature and pressure sensors (19) installed at the inlet and outlet of regulated cooler (17) of the inlet air, to the control input of which the output of inlet air temperature controller (22) is connected. Charge air cooler (8) has first inlet (9) connected to outlet of compressor (3), first output (10) connected to the inlet of throttle valve (11), second inlet (13) connected to air filter (14), and second outlet (15) connected to adjustable ambient air cooler (17) and to inlet of bypass valve (16), the output of which is connected to first outlet (10) of charge air cooler (8). EFFECT: technical result is an improvement in the turbo-charge control dynamics. 1 cl, 2 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 649 714 C1 (51) МПК F02B 29/04 (2006.01) F02D 23/00 (2006.01) F02B 37/00 (2006.01) F01P 1/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК F02B 29/0431 (2018.02); F02D 23/00 (2018.02); F01P 1/02 (2018.02); F02B 37/00 (2018.02) (21)(22) Заявка: 2017121209, 16.06.2017 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и ...

Luftgekühlte Brennkraftmaschine

Mittels eines Geblaeses luftgekuehlte, mehrzylindrige Kolbenbrennkraftmaschine

Improvements in or relating to internal combustion engine installations

... 547,406. Cooling cylinders and exhaust. BRISTOL AEROPLANE CO., Ltd., FEDDEN, A. H. R., and THOMAS, F. M. Jan. 17, 1941, No. 705. [Class 7 (ii)] In an air-cooled engine installation, the cold air for cooling the engine, the air which has become heated in cooling the engine and the exhaust gases are so disposed in ducts 15, 25, 24, that the cold air and the exhaust gases are separated by the heated air. As shown, the installation comprises radial-cylinder engines 10 which are arranged coaxially face-to-face in a casing 17 in the fuselage of an aircraft and drive airscrews through laterally extending shafts 13. Air is admitted through the ducts 15 in the wings to a space 12 between the engines, and is deflected by tubular partitions 19 over the cylinder heads and barrels as described in Specification 547,404. The heated air then passes around exhaust rings 22 and the tailpipes 24 to outlets 28 at the rear of the wings. Oil coolers 26 may be arranged in ducts 27 branched. from the air ducts ...

Flexible fuel generator and methods of use thereof

Improvements in cooling for explosion motors in motor vehicles

... 147,570. Poignard, A. L. O. March 4, 1914, [Convention date]. No Patent granted (Sealing fee not paid). Cooling motors, air blast and deflectors for. -- In an air-cooling system, a current of air is led past the cylinders in a direction transverse to the plane of symmetry of each row of cylinders. Air assisted by the action of a fan E, Fig. 3, passes through slots in the front of the bonnet and is directed by a dividing wall D so as to flow transversely between the cylinders. Escape of the used air is provided for by slots C on one side of the bonnet supplemented when necessary by orifices in its rear and base. The other side of the bonnet may be provided with dummy slots I. In the case of V engines, air is led from the front of the casing by an upwardly-directed dividing wall to the space P, Fig. 4, between the cylinders and thence escapes through slots in both side walls and through rear orifices T, U, after passing between the cylinders.

IMPROVEMENTS RELATING TO CYLINDER JACKETS FOR TWO-STROKE INTERNAL COMBUSTION ENGINES

Improvements in air-cooled internal combustion engines with lubricant cooling means

... 970,906. Lubricant coolers. GESELLSCHAFT FUR LINDE'S EISMASCHINEN A.G. Oct. 9, 1962 [Oct. 31, 1961], No. 38127/62. Heading F1B. In an air-cooled engine, the connecting pipes 8 between a lubricant pump and a lubricant cooler 5 and/or between the cooler 5 and the passages leading to the engine lubrication points are located in the cooling air stream and are readily removable so as to be interchangeable with pipes of different superficial area. For engines operating in temperate climates the pipes 8 are smooth, unfinned tubes but for tropical climates they are replaced by finned tubes.

Improvements in or relating to the charging and cooling of internal combustion engines

... 549,382. Two-stroke engines ; cylinders; cooling &c. JACKSON, L. MELLERSR-. (McCarthy, M. E.). July 24, 1941, No. 9396. [Classes 7 (ii) and 7 (vi)] In an engine having a plurality of cylinders 17 with inlet ports 31 and exhaust ports 42 at opposite ends controlled by corresponding ports 40, 41 in sleeve valves 33, the intake air is admitted by scoops 70 into cup-shaped cylinder heads 34 ribbed at 35, and thence into an air chamber 19, which may be formed between the crank case 20 and a cover 22 arranged between rows of inverted V-cylinders, the air passing from the chamber 19 to inlet chambers 28 -surrounding the inlet ports 31. The air is drawn into the chamber 19 and through an opening 77 to superchargers 78, 79, which discharge it by passages 82, 83 to the chambers 28. The superchargers are driven through gearing 92...96 from the propeller shaft 90, which is driven from the crankshaft 11 by gearing 104, 108. The cylinder heads 34 may be fixed, or may move with the sleeve valves. Water ...

INTERNAL COMBUSTION ENGINE WITH A SILENCED COOLING AIR SYSTEM

... 1397476 Cooling 1C engines; silencing gaseous flow MOTORENFABRIK HATZ KG 27 April 1973 [8 May 1972 15 June 1972] 20111/73 Heading F1B Cooling air from a blower 24 is directed over the cylinder or cylinders 10a .... 10d and ducts 26, 30, 32 defining the air-flow path are arranged to effect silencing. The duct walls may be interiorly lined with sound-absorbing material, (26a), Fig. 4 (not shown), e.g. rock wool, retained in place by perforated plate (26b) or mesh. The air from the blower is in part supplied as combustion air to the intake manifold 36 via a cyclone separator 40 and a paper filter element 38p within a removable cover 38. The exhaust manifold outlet pipe 34 opens to the cooling air discharge duct 32. In a single cylinder engine, Figs. 5 to 7 (not shown), the inlet duct (130) of the blower (24') provides an elongated spiral flow path. Reference has been directed by the Comptroller to Specification 1263979.

LUFTGEKÜHLTE BRENNKRAFTMASCHINE MIT INNERER VERBRENNUNG

CANDLE PIT FOR AIR-COOLED VEHICLE INTERNAL-COMBUSTION ENGINES

KERZENSCHACHT FUER LUFTGEKUEHLTE FAHRZEUGBRENN- KRAFTMASCHINEN

FOUR-CYCLE INTERNAL-COMBUSTION ENGINE

COOLING AIR CIRCULATION IN AN AIR-COOLED INTERNAL-COMBUSTION ENGINE.

FOUR-CYCLE INTERNAL-COMBUSTION ENGINE

AIR-COOLED INTERNAL-COMBUSTION ENGINE

STRATIFIED AIR SCAVENGING IN TWO-STROKE ENGINE

Air cooled power machine

ENGINE ENCLOSURE AND HEAT DEFLECTOR ARRANGEMENT

ENGINE ENCLOSURE AND HEAT DEFLECTOR ARRANGEMENT A lawn and garden tractor includes an air cooled engine which is enclosed by structure including a hood and opposite side panels. The engine is of a type including a heat shroud for directing cooling air about cooling fins of the engine head, the shroud having a top wall provided with an air intake opening located above a blower or fan of the engine. The hood and opposite side panels cooperate to define air inlet openings at opposite sides of the enclosure, the openings being located at a level above the top wall of the shroud. A deflector or baffle member is provided for preventing hot air exiting from the shroud from recirculating through the intake opening of the shroud.

PARTIALLY LIQUID-COOLING TYPE FORCEDLY AIR-COOLING SYSTEM FOR INTERNAL COMBUSTION ENGINE

ABSTRACT " PARTIALLY LIQUID-COOLING TYPE FORCEDLY AIR-COOLING SYSTEM FOR INTERNAL COMBUSTION ENGINE " In a partially liquid-cooling type forcedly air-cooling system for an internal combustion engine which includes an air-cooled cylinder and a liquid-cooled cylinder head. a centrifugal cooling fan is provided in front of a crankcase so as to rotate about the fore and rear axis thereof, and a cooling air delivery opening is provided at the back portion of a draft chamber within a fan casing which encircles the cooling fan, so as to orientate at least to the cylinder. And a portion. which is arranged at the side of the cylinder head. of the encircling wall of the fan casing is provided with an opening. And the cylinder is adapted to be cooled adequately by the cooling air flow delivered through the opening, as well as a radiator is adapted to be cooled effectively by the cooling air flow passing through the opening provided in the encircling wall of the fan casing so that at least a portion of the cylinder head can be cooled intensively.

COOLING MEANS FOR OVERHEAD CAM ENGINE

An air-cooled internal combustion engine includes a crankcase, a crankshaft disposed within the crankcase and extending externally thereof, and a cylinder extending from the crankcase and having a piston mounted for reciprocation therein and connected to the crankshaft. A cylinder head is connected to the cylinder and includes an overhead camshaft disposed therein, with the camshaft extending externally of the cylinder head. A drive pulley is mounted to the crankshaft externally of the crankcase, and a cam pulley is mounted to the camshaft externally of the cylinder head. A drive belt positively engages the drive pulley and the cam pulley for transmitting rotary motion therebetween. The cam pulley includes integral fan blades for directing air axially toward the cylinder head upon rotation of the cam pulley. The cylinder head includes an intake valve, an exhaust valve, and an air passageway extending therethrough substantially parallel to the camshaft. The air passage is located between ...

Rotierende Verbrennungskraftmaschine.

Kühleinrichtung an Motorrädern.

Viertaktverbrennungskraftmaschine, insbesondere Dieselmaschine.

Luftkühleinrichtung an Verbrennungsmotoren.

Einrichtung zur Kühlung der Treibstoffpumpe bei luftgekühlten Brennkraftmaschinen mit V-Zylindern.

Verfahren und Einrichtung zur Kühlung des Innern einer Brennkraftmaschine mit durch eine Abgasturbine angetriebenem Aufladegebläse, insbesondere für Kraftfahrzeuge.

Verfahren zur Herstellung von Kohlenstoff enthaltenden Unterbrecherkontakten.

Brennkraftmaschine mit mehreren im Kopf eines Zylinders angeordneten Ventilen

Motore a combustione interna raffreddato ad aria

Verfahren zum Kühlen von Brennkraftmaschinen und Einrichtung an Brennkraftmaschinen zur Durchführung des Verfahrens.

Einrichtung zum Kühlen von Brennkraftmaschinen mittelst Luft.

Einrichtung zur Kühlung von Verbrennungsmotoren mittelst Luft.

Elektrisch-hydraulische Vorrichtung für die Kontrolle der Kühlung von Verbrennungsmotoren

Air cooled internal combustion engine

Air cooled internal combustion engine has part of exhaust pipe in path of cooling air directed at engine cylinder ...

Engine-driven operating tool

Improvements with internal combustion engines

Blower unit for powered implement such as chain saw or brush cutter has housing with guide surface of aerodynamic profile and branch channel for motor intake

Dans ce dispositif comportant un outil de travail entraîné par un moteur à combustion interne et comportant une soufflante radiale comprenant un rotor de soufflante et un carter de soufflante (6) de forme spiralée et comprenant une ouverture (3) de prélèvement d'un courant d'air de combustion pour le moteur dans la zone d'un courant d'air entraîné (2), une rampe de guidage aérodynamique (7) qui s'étend en direction axiale est prévue radialement à l'extérieur du rotor de soufflante, l'ouverture de prélèvement (3) étant disposée en aval de la rampe. Application notamment aux scies à chaîne et aux débroussailleuses.

Internal combustion engine with air cooling? of an air filter

Engine with internal cooling

Device for the cooling of the interior of an internal combustion engine comprising a blower of load driven by a gas turbine of exhaust, in particular for motor vehicles

Design of air-cooled cylinders for internal explosion to one or more cylinders

POWER PLANT HAS INTERNAL COMBUSTION EQUIPS With an INSTALLATION OF VENTILATION OF the INJECTION PUMPS

Improvements with the engines

Improvements brought to the cooling of the internal combustion engines

MACHINE TOOL WHICH, MOTOR DRIVEN AND GUIDED MANUALLY, HAS A FAN HOUSING MADE IN ONE SINGLE PIECE

DEVICE INTENDS TO DISTRIBUTE the AIR Of ASPIRATION FOR the CARBURETTOR Of an APPARATUS OF WORK HAS HAND DRIVE OPERATION

Spark-ignition engine without water circulation

ALTERNATE ENGINE HAS INTERNAL COMBUSTION INCLUDING/UNDERSTANDING A MIXED INSTALLATION OF COOLING HAS AIR AND QUICK ASSETS

Manually guided machine tool, such as for example a power saw with chain, a slicer àmeule or analogues

Dans une machine-outil guidée manuellement et équipée d'un moteur thermique (3) pour entraîner un outil la roue (5) d'un ventilateur refoule de l'air de refroidissement vers le moteur thermique et, du côté refoulement du ventilateur est monté un conduit (18) pour dévier de l'air comburant hors du courant d'air de refroidissement. Afin que l'air comburant dévié soit exempt de particules de saleté le conduit (18) est réalisé sous une forme en U, l'ouverture de l'U étant tournée vers les aubes (7) de la roue (5), et un passage (20) destiné au transfert d'air comburant dans un espace à air (11) est ménagé dans le fond (16) du conduit (18) à une certaine distance de la roue (5), l'axe médian (19) perpendiculaire au plan du passage (20) formant avec la direction d'écoulement (17) de l'air de refroidissement un angle (beta) d'environ 70 à 180degré .

ENGINE BODY CONSTRUCTION OF A CHAIN SAW

Cooling means for the squish part of an air cooling overhead valve engine

The present invention relates to a cooling means for the squish part of an air cooling over head valve engine, comprising a fan disposed in front of said engine for generating cooling wind. A fan case is provided which covers the front side of the fan and engine. A wind tunnel is formed through the cylinder head of said engine near the squish area and is aligned so as to pass a cooling wind, generated by the fan, above the squish area. The engine is provided with an intake and exhaust ports opening at the front and rear surfaces of said cylinder head, respectively. In the lateral side of the wind tunnel, an intake or exhaust pipe is disposed laterally over the front space of the tunnel, so as to guide cooling wind blown up from the fan to the tunnel along its lower peripheral surface thereof.

Mobile current consumer device

A mobile current consumer device, especially a fire control device for artillery- and/or rocket weapons, comprising a current generator unit insertable into a receiving compartment thereof. In the installed condition of the current generator unit, at least two spatially separated cooling air currents can be delivered to the current generator unit, and removed in the form of heated air currents spatially separated from one another. The one cooling air current can be delivered to an internal combustion engine of the current consumer device provided with a blower by means of an air infeed channel having a suction opening facing in the direction of travel. Such air current is then removable as heated air from the cooling casing surrounding the engine through the floor of the current generator unit which is extensively open at the region of the engine and by means of at least one opening provided in the floor of the receiving compartment. The other cooling air current entering by way of a suction ...

Air-cooling device for internal-combustion engines

Cooling system for a working vehicle

A cooling structure for a motor section of a working vehicle with an engine having a vertical output shaft and mounted in an engine hood having an ambient air intake opening defined in an upper surface thereof, and a fan disposed above the engine to draw in cooling air. The cooling air is guided by an air guide cover to flow to a cylinder head and a carburetor attached to a side wall of the cylinder head. The motor section further includes a muffler disposed adjacent and below the carburetor. A muffler cover is disposed between the carburetor and muffler. Part of the air having cooled the carburetor is used to cool an upper surface of the muffler cover. The remaining part of the air having cooled the carburetor is directed under the muffler cover for use in cooling the muffler.

ENGINE COOLING STRUCTURE FOR MOTORCYCLE

A front fender is provided in front of an air-cooled engine which is a drive source of a motorcycle. An air introduction hole which opens frontward is formed at a front part of a cylinder head of the air-cooled engine. A space around a plug attachment portion for a spark plug and a space in front of the cylinder head communicate with each other through the air introduction hole. A guide portion for guiding incoming wind toward the air introduction hole is formed at a rear part of the front fender. 1. An engine cooling structure for a motorcycle including an air-cooled engine , which is a drive source , and a front fender provided in front of the air-cooled engine , whereinan air introduction hole is formed at a front part of a cylinder head of the air-cooled engine such that the air introduction hole opens frontward and a space around an attachment portion for a spark plug and a space in front of the cylinder head communicate with each other through the air introduction hole, anda guide portion is formed at the front fender and configured to guide incoming wind toward the air introduction hole.2. The engine cooling structure as claimed in claim 1 , whereina lower end of a rear portion of the front fender is located upward relative to a lower end of a cylinder head cover of the air-cooled engine.3. The engine cooling structure as claimed in claim 1 , whereinthe front fender includes a fender front portion, a fender rear portion, and a fender intermediate portion located frontward of the fender rear portion and connecting the fender front portion and the fender rear portion,a dimension in a vehicle widthwise direction of the fender front portion is greater than that of the fender rear portion, anda dimension in a vehicle widthwise direction of the fender intermediate portion gradually decreases from a front end thereof toward a rear side.4. The engine cooling structure as claimed in claim 1 , comprising:a shroud provided so as to be located frontward relative to the ...

Cooling device of V-type engine

A cooling device is incorporated into a V-type engine E in which a front cylinder and a rear cylinder are arranged in V-shape and a rear exhaust pipe is placed at a right side of a vehicle body. The cooling device 1 includes an intake duct and a fan. The intake duct has a suction port which opens toward the rear exhaust pipe. The fan suctions the air into the interior of the intake duct through the suction port and exhausts the suctioned air to a location distant from the exhaust pipe.

Vehicle engine cooling system

A vehicle engine cooling system may include a high temperature radiator in which a high temperature coolant for cooling an engine by using ambient air flows, a low temperature radiator in which a low temperature coolant for cooling a water-cooled condenser by using ambient air flows, an integrated cooler configured to cool a low pressure EGR gas and air which has passed through a turbocharger, a high temperature radiator circulation line provided to allow the high temperature coolant to circulate the high temperature radiator, the engine, and the integrated cooler, a low temperature radiator circulation line provided to allow the low temperature coolant to circulate the low temperature radiator, the condenser, and the integrated cooler, and a plurality of control valves provided on the high temperature radiator circulation line and the low temperature radiator circulation line.

THERMAL CHOKE, AUTOSTART GENERATOR SYSTEM, AND METHOD OF USE THEREOF

A thermal choke, includes (1) a body, comprising a heat conductive material, (2) an electric heater, on or in the body, (3) a temperature sensor, on or in the body, and (4) a fin, in a channel surrounded by the body. The thermal choke is configured to fit between a throttle assembly and a cylinder of a spark ignition engine.

COVER STRUCTURE FOR AIR-COOLED ENGINE

Provided is a cover structure for an air-cooled engine to be cooled by cooling air generated by a cooling fan, the cover structure including: a fan housing covering the cooling fan and configured to guide the cooling air to a cylinder unit, the fan housing being formed with an opening part for maintenance of the cylinder unit; and a debris cover removably attached to the fan housing so as to close the opening part. The fan housing is formed with an air guide plate that constitutes a part of an outer periphery of the fan housing. The air guide plate includes a proximal end portion and a distal end portion extending from the proximal end portion to a cooling fin of the cylinder unit. A reinforcing plate for securing rigidity of the fan housing is formed at the proximal end portion of the air guide plate.

Air-cooled engine

An air-cooled engine (10) is cooled by cooling air (Wi). The air-cooled engine (10) includes a cylinder block (33) and a cylinder head (28). The cylinder block (33) has cylinder cooling through-ducts (101, 102) capable of transmitting cooling air (Wi), on the periphery of a cylinder (26). The cylinder head (28) has a head-cooling through-duct (104) capable of transmitting cooling air (Wi). The cylinder-cooling duct (104) extend in a direction perpendicular to the axial line (109) of the cylinder (26), and are communicated with each other by means of communication channels (105, 105) ...

AIR-COOLED ENGINE

Vertical engine for walk-behind lawn mower

СИЛОВОЙ МЕХАНИЗМ С ВОЗДУШНЫМ ОХЛАЖДЕНИЕМ

Механизм предназначен для использования в двигателях, насосах и компрессорах. Независимо от того, является ли данный механизм двигателем, насосом или компрессором, цилиндр нуждается в охлаждении. В таких случаях применение, как двигатели газонокосилок или механических пил, необходимо применять воздушное охлаждение, так как на практике разместить систему водяного охлаждения невозможно. Охлаждение цилиндра достигается за счет того, что как во вращающемся, так и в неподвижном диске имеются отверстия или каналы, через которые протекает охлаждающий воздух. Для дополнительного улучшения охлаждения внешняя поверхность цилиндра может иметь фланцы. В других вариантах изобретения соединительные средства между вращающимся диском и выходным валом имеют такую форму, что они действуют и как лопасти вентилятора и обеспечивают необходимый поток воздуха. Изобретение обеспечивает надежность и долговечность. 4 з.п.ф-лы, 5 ил.

СИСТЕМА ВОЗДУШНОГО ОХЛАЖДЕНИЯ ДВИГАТЕЛЯ ВНУТРЕННЕГО СГОРАНИЯ С УПРАВЛЯЕМЫМ ЗАМКНУТЫМ КОНТУРОМ ОХЛАЖДЕНИЯ

Задачей предлагаемой полезной модели является повышение КПД процесса охлаждения двигателя внутреннего сгорания и снижение энергетических затрат системы воздушного охлаждения двигателя внутреннего сгорания.Предлагается в известную систему воздушного охлаждения двигателя внутреннего сгорания, содержащую воздушный тракт, выполненный в виде герметичной рубашки охлаждения и нагнетателя воздуха, выполненного в виде компрессора, двигатель Стирлинга обратного цикла с камерой охлаждения, воздуховод холодного воздуха, воздуховод горячего воздуха, ввести в качестве управляющего элемента термостат регулировки температуры в системе охлаждения, а также радиатор рабочего поршня высоких температур двигателя Стирлинга и воздуховод холодного воздуха малого сечения.

Система охлаждения 4-цилиндрового двигателя с оппозитно-рядным расположением цилиндров

Полезная модель относится к устройствам воздушного охлаждения поршневых двигателей для БПЛА и может найти применение в беспилотной авиации. Предлагаемая система охлаждения двигателя использует встречный набегающий поток воздуха. Каждый из его цилиндров снабжен индивидуальными каналами подвода воздуха, формирующими поток, обладающий более высокой скоростью, чем набегающий поток воздуха, что увеличивает эффективность охлаждения цилиндров двигателя. Согласно уравнению неразрывности струи (Л.С. ЖДАНОВ, В.А. МАРАНДЖЯН, КУРС ФИЗИКИ ДЛЯ СРЕДНИХ СПЕЦИАЛЬНЫХ УЧЕБНЫХ ЗАВЕДЕНИЙ, ЧАСТЬ ПЕРВАЯ, ИЗДАТЕЛЬСТВО «НАУКА», ГЛАВНАЯ РЕДАКЦИЯ ФИЗИКО-МАТЕМАТИЧЕСКОЙ ЛИТЕРАТУРЫ, МОСКВА 1971, стр. 286, рис. 159, формула (12.1)) скорость потока воздуха, обтекающего цилиндры двигателя, выражается формулами: т.е. скорость течения потока обратно пропорциональна площади поперечного сечения потока; S1, S2 - площадь сечения потока; v1, v2 - скорость течения потока. Техническим результатом является то, что за счет замедления ...

LAGERANORDNUNG

Handgeführtes Arbeitsgerät

Handgeführtes Arbeitsgerät wie Freischneider, Motorkettensäge und dgl. mit einem luftgekühlten Verbrennungsmotor (2) zum Antrieb eines Werkzeuges (10), wobei zwischen einer Abtriebswelle (6) des Verbrennungsmotors (2) und dem Werkzeug (10) eine Fliehkraftkupplung (7) angeordnet ist und auf der Abtriebswelle (6) ein Fliehkörperteil (8) der Fliehkraftkupplung (7) und ein Gebläserad (4) zur Förderung von Kühlluft zum Verbrennungsmotor (2) drehfest gehalten sind, wobei das Fliehkörperteil (8) der Fliehkraftkupplung (7) am Gebläserad (4) befestigt ist, dadurch gekennzeichnet, dass das Gebläserad (4) auf der dem Verbrennungsmotor (2) abgewandten Saugseite einen Saugschaufelkranz (32) mit einer Vielzahl Laufschaufeln (36) trägt, dass an der mit Laufschaufeln (36) bestückten Saugseite des Gebläserades (4) ein axialer Stützdorn (25, 26) ausgebildet ist und das Fliehkörperteil (8) der Fliehkraftkupplung (7) an der mit Laufschaufeln (36) bestückten Saugseite des Gebläserades (4) an mindestens einem ...

Zylinderkopf-Kühlsystem für ein Motorrad

Motorrad, das einen Rahmen und eine mit dem Rahmen verbundene Motor- und Getriebebaugruppe umfasst. Die Motor- und Getriebebaugruppe umfasst zumindest eine Zylinderkopfbaugruppe, die einen Kühlanschluss besitzt und einen Kühldurchgang festlegt, der sich in Fluidaustausch mit dem Kühlanschluss befindet und durch mindestens einen Teil der Zylinderkopfbaugruppe führt. Das Motorrad umfasst auch einen Kanal, der mit dem Kühlanschluss verbunden ist, und ein Gebläse, das sich in Fluidaustausch mit dem Kanal befindet und mit einer Betriebsgeschwindigkeit arbeiten kann, bei der Luft aus dem Kühldurchgang gesaugt wird und Luft durch den Kühlanschluss und durch den Kanal bewegt wird.

Einrichtung zur Kuehlung des Inneren einer Brennkraftmaschine, insbesondere fuer Kraftfahrzeuge

Zylinderkopf für eine selbstentzündende Brennkraftmaschine

Zylinderkopf (10) mit wenigstens einem Auslasskanal (12), der von einem Auslassventil (30) verschließbar ist und eine Kühlluftkanalanordnung mit wenigstens einem Kühlluftkanal (41, 42) zur Beaufschlagung des Auslassventils mit gekühlter Luft umfasst. Die Kühlluftkanäle der Kühlluftkanalanordnung im Zylinderkopf sind im Wesentlichen linear und/oder mit im Wesentlichen gleichbleibendem oder sich kontinuierlich vergrößerndem Querschnitt ausgebildet.

MOBILES STROMVERBRAUCHERGERAET

Air cooled IC engine for vehicle - has lubricating and retarder oil coolers with additional air cooled gear oil cooler

The air-cooled i.c. engine has a lubricating oil cooler and a retarder oil cooler. The lubricating oil flows through the engine. This allows more freedom in the positioning of the retarder oil cooler. The lubricating oil cooler is acted on by the cooling air as a separate heat exchanger. The retarder oil is fed through an additional air-cooled gear oil cooler. The lubricating oil first flows through the lubricating oil cooler, then through the retarder oil cooler and finally through the oil filter.

Trockensumpfschmiersystem,insbesondere fuer luftgekuehlte Kraftwagenmotoren

HANDGEFUEHRTES, MOTORGETRIEBENES ARBEITSGERAET MIT EINTEILIG AUSGEBILDETEM LUEFTERGEHAEUSE

Vertikaler Motor für einen Rasenmäher.

Oil cooler for piston engine is linked to engine by free-standing dual-purpose hollow bolts with oil-ways

An automotive engine has an oil cooler consisting of a ribbed container with an oil inlet and an oil outlet. The container is mounted on the engine block from which it is separated by dual-purpose hollow bolts. The bolts serve both to secure the ribbed container, and pass hot oil from the engine block to the ribbed container.

Gebläseanordnung

Gebläseanordnung eines durch einen Verbrennungsmotor angetriebenen handgeführten Arbeitsgerätes mit einem Radialgebläse (1), welches ein Gebläserad (5) und ein das Gebläserad (5) zumindest teilweise umschließendes spiralförmiges Gebläsegehäuse (6) umfaßt, wobei im Radialgebläse (1) im Bereich eines geförderten Luftstromes (2) eine Entnahmeöffnung (3) zur Ableitung eines aus dem Luftstrom (2) abzuzweigenden Verbrennungsluftstromes (4) für den Verbrennungsmotor vorgesehen ist, wobei in radialer Richtung außerhalb des Gebläserades (5) eine in axialer Richtung mit aerodynamischer Formgebung sich erhebende erste Leitrampe (7) mit einem Scheitelpunkt im Luftstrom (2) vorgesehen ist, und wobei die Entnahmeöffnung (3) stromab der ersten Leitrampe (7) angeordnet ist, dadurch gekennzeichnet, daß die erste Leitrampe (7) als Strömungsverkleidung einer in einen Innenraum des Gebläsegehäuses (6) hineinragenden Zündspule (11) in Strömungsrichtung unmittelbar vor der Zündspule (11) angeordnet ist, und ...

LUFTGEKUEHLTE BRENNKRAFTMASCHINE.

Motorgebläse

Es wird ein Gebläse erhalten, wodurch eine große Luftstrommenge erhalten wird und eine hohe Kühleffizienz in Bezug auf den Zylinder und den Geräuschdämpfer erhalten wird. In einem zweiten Gehäuse (42), das eine Abtrennung zwischen einer Spiralkammer (40B) und einer Geräuschdämpferkammer (40C) vornimmt, ist vor einer Trennplatte (54) und hinter einer Geräuschdämpferabdeckung (46) ein Ansaugöffnungsabschnitt (42A) gebildet. Die Spiralkammer (40B) ist in einer solchen Form ausgeführt, dass ihre zu der Vorwärts-Rückwärts-Richtung senkrechte Breite hinter dem Ansaugöffnungsabschnitt (42A) lokal eng wird, direkt hinter dem Ansaugöffnungsabschnitt (42A) ein erster Krümmungsabschnitt (41B) ausgebildet ist, und an dem zweiten Gehäuse (42) ein erster Krümmungsabschnitt (42B) ausgebildet ist. Durch einen Luftzufuhrstrom W, dessen Fließgeschwindigkeit erhöht wurde, nimmt der Luftdruck direkt vor dem ersten Krümmungsabschnitt (42B) lokal ab und entsteht von der Geräuschdämpferkammer (40C) her gesehen ...

SYSTEME UND VERFAHREN ZUR VERBRENNUNGSMOTORKÜHLUNG WÄHREND S/S-EREIGNISSEN

Es sind Verfahren und Systeme zum Reduzieren der Temperatur eines Verbrennungsmotors oder eines einzelnen Zylinders/von einzelnen Zylindern des Verbrennungsmotors bei Start-/Stopp-Ereignissen bereitgestellt, bei denen der Verbrennungsmotor davon abgehalten wird, Luft und Kraftstoff zu verbrennen, und als Reaktion auf einen Verbrennungsmotorüberhitzungszustand. In einem Beispiel umfasst ein Verfahren das Anschalten eines elektrischen Luftverdichters, um Kühlluftstrom durch einen ersten einzelnen Zylinder des Verbrennungsmotors zu leiten, um eine Temperatur des ersten einzelnen Zylinders vor einer Anforderung, den Verbrennungsmotor neu zu starten, auf eine gewünschte Temperatur zu reduzieren. Auf diese Weise kann ein einzelner Zylinder, der als überhitzt angegeben ist, effektiv gekühlt werden, ohne eine Methodik anzuwenden, die andernfalls den Verbrennungsmotor als Ganzes kühlen würde, wodurch Beeinträchtigung des Verbrennungsmotors verhindert werden kann und Leistung einer bordeigenen Energiespeichervorrichtung ...

Improvements in air cooled internal combustion engines

... 226,172. Potez, H. C. A. Dec. 10, 1923, [Convention date]. Four-stroke-cycle engines; cylinders, cooling; Crank chambers; driving-gear.-Cylinders, cooled by movement through the air or by the draught caused by the propeller of an aircraft, are arranged in stepped relationship behind one another. Fig. 2 shows the application to a radial cylinder, four-stroke cycle aircraft engine having a stepped crank-case 5 and two rows of cylinders 1, 2, arranged in staggered relationship to one another. The rear cylinders 1 may have a greater bore and stroke than the front cylinders, but in the case of an engine having two cylinders only they are of equal bere and stroke, the rear connecting- rod being larger than the front one.

Improvements in or relating to the valve gear of air-cooled internal-combustion engines

... 350,822. Valve gear; cooling cylinders. CAPPA, G. C., 24, Via Pier Carlo Boggio, and SOC. ANON. AUTOMOBILI ANSALDO, 251, Corso Peschiera, both in Turin, Italy. Aug. 28, 1930, No. 25740. Convention date, Aug. 29, 1929. [Classes 7 (ii) and 7 (vi).] In an air-cooled engine having overhead valves, the cooling jacket 4 surrounding the cylinders is formed with a mechanical upper surface 41 on which is mounted the spindle 5 carrying the valveactuating levers 6. These levers are enclosed by a casing 7, which constitutes an oil bath for the levers and prevents the oil from being carried along by the current of cooling air. The casing 7 is formed with extensions 8 for protecting the valve stems and springs.

A reciprocating-piston internal combustion engine

Improved ladder bracket, applicable also as a wall scaffolding bracket

... 486,459. Scaffold brackets. JONES, W. Jan. 20, 1937, No. 1653. [Class 20 (ii)] A ladder or wall bracket comprises a back bar, a bearing bar, and a strut bar, adapted to be adjustably fixed between the back bar and the bearing bar. The back bar 1 has a notched edge 16 and is provided with main and auxiliary hooks 8 and 18 respectively whereby the bracket may be supported on the rungs of a ladder or to the face of a wall. Pivoted to the back bar near its upper end is a divided support-bar 3, the outer end of which is adapted to be adjustably bolted to the end of an inclined strut bar 2, perforations 9 being provided in this bar for that purpose. The other end of the strut bar is pivoted to a casing 11 having a sliding fit on the back-bar, a spring acting releasable catch 22 with rounded inner and being provided to engage the notches on the back bar to retain the casing in adjusted position.

Oil cooling means for air-cooled internal combustion engines

... 656,925. Cooling cylinders. TATRA, NARODNI PODNIK, 'and POPELAR, V. Oct. 14, 1948, No. 26816. Convention date, Oct. 14, 1947. [Class 7(ii)] [Also in Group XXXIV] An axial-flow fan 1 mounted on a vertical shaft directs cooling-air on to horizontal engine cylinders 5, and coolers 4 for the lubricating oil are arranged above the cylinders in the air stream from the fan. The air is driven by the fan into a space 2 between the cylinders and cover plates 3 and is evenly distributed over the cylinders and cylinder heads.

CYLINDER JACKETS

Outboard motor for freight boats od.dgl.

ARRANGEMENT IN AIR-COOLED FUEL FORCE ENGINES

BRENNKRAFTMASCHINE MIT INNERER VERBRENNUNG

An internal combustion engine includes a cylinder block with cooling fins cast integral therewith, and a cylinder head bolted on top of the cylinder block, first coolant passages being provided in the area of at least one cylinder contained in the cylinder block, which passages are connected to second coolant passages located in the cylinder head. Cooling efficiency is increased by providing heat exchange passages in an outer region of the cooling fins, which together with the first coolant passages and the second coolant passages, form a closed loop system within the engine.

MECHANISM FOR VENTILATING A IN A TRANSMITTING ROOM OF MOBILE CURRENT CONSUMPTION EQUIPMENT APPLICABLE ONE OF GENERATOR AGGREGATE

LAGERANORDNUNG

Blower housing for internal combustion engine

Bearing arrangement

Cylinder cooling apparatus for air-cooled engine

A cylinder cooling apparatus for an air-cooled engine is equipped with a cooling fan provided on one end section of a crankshaft; a pair of pushrod insertion holes for air intake and exhaust valves formed in a cylinder outer circumferential wall section; a fan shroud for covering the cooling fan and for covering the cylinder outer circumferential wall section in which the pushrod insertion holes are formed; a cutout ventilating section formed in the cylinder outer circumferential wall section between the pair of pushrod insertion holes; and tunnel-shaped ventilating holes formed in the cylinder outer circumferential wall section between the pushrod insertion hole disposed on the side of the cooling fan and a cylinder bore and extending from the cylinder outer circumferential wall section on the side of the cooling fan to the cutout ventilating section.

Cooling system in air-cooled combustion engine

A top plate is provided in a top portion of a cylinder block of a combustion engine of a type, provided with a cooling fan, so as to lie perpendicular to a longitudinal axis of an engine cylinder. An intake side gasket interposed between the cylinder block and an intake unit is extended upwardly to contact the top plate to thereby seal a gap between the top plate and the intake side gasket. An exhaust side gasket interposed between the cylinder block and an exhaust unit is extended upwardly to contact the top plate to thereby seal a gap between the top plate and the exhaust side gasket. A cooling passage for passing therethrough a cooling air from the cooling fan is formed by the cylinder block, the top plate, the intake side gasket and the exhaust side gasket.

Cooling apparatus of engine

A cooling apparatus of an engine according to the present invention includes a cooling fan, a fan housing, and a shroud guiding cooling air from the fan housing to the outer circumferential surface of an engine body portion. Further, a cooling air passage passing throughout in a cylinder head from one side surface of the cylinder head to the other side surface thereof is formed in the cylinder head, and a narrowed or throttle guide portion which guides the cooling air from the interior of the fan housing to an inlet opening of the one side surface of the cooling air passage is formed in the shroud.

Portable Handheld Work Apparatus having an Internal Combustion Engine

In an internal combustion engine ( 2 ) of a portable handheld work apparatus, the cylinder ( 3 ) is provided with cooling ribs ( 4, 4′ ). A cooling airflow is generated by the fan wheel ( 13 ) and is guided over the cooling ribs. A carburetor ( 9 ) is temperaturized as required by the heated cooling air. A control of the cooling airflow to the carburetor ( 9 ) takes place in that an opening ( 11 ), which passes the heated cooling air, is selectively closed or opened via a closure element ( 12 ). In order to obtain improved cooling of the cylinder during summer operation as well as during winter operation, the closure element ( 12 ) is provided with at least one air guide wall which extends essentially transversely to the cooling airflow and causes this cooling air to be partially backed up and deflected.

Internal combustion engine

An internal combustion engine includes a deactivatable cylinder group, a constantly operating cylinder group, a first water passage, a second water passage, an upstream integrated water passage, a downstream integrated water passage, a connecting passage, a third water passage, and a device. The downstream integrated water passage includes a junction and an upstream end. The upstream end is closer to the second water passage than to the first water passage in the downstream integrated water passage. The third water passage connects the connecting passage and a portion provided between the junction and the upstream end in the downstream integrated water passage. The device is provided adjacent to at least a part of the third water passage to exchange heat with water flowing in the third water passage.

ENGINE AND ENGINE-DRIVEN WORKING MACHINE

The temperature of exhaust gas discharged from a compact air-cooled engine used as a power source for an engine-driven working machine is reduced. An engine has a muffler mounted directly to the exhaust opening of the cylinder, and a resin muffler cover covering the muffler. An exhaust gas restriction member is provided to a wall surface of the muffler, and two exhaust passages serving as outlets for exhaust gas are formed in the exhaust gas restriction member. The exhaust passages are arranged independent of each other, and the streams of discharged exhaust gas are discharged to be slightly separated from each other as the streams flow away from the exhaust openings. The separated streams of discharged exhaust gas form a negative pressure space between the streams promoting the introduction of a cooling air stream into the negative pressure portion. Thus, the temperature of the exhaust gas can be reduced. 1. An engine comprising: a cylinder having a plurality of fins at an outer circumferential section thereof and in which a combustion chamber is formed; a cooling fan installed at one end of a crankshaft and configured to generate cooling air to cool the cylinder; and a muffler attached to an exhaust opening of the cylinder , wherein an exhaust gas outlet is installed at the muffler , an exhaust gas restriction member configured to determine a discharge direction of exhaust gases is installed at the exhaust gas outlet , and the exhaust gas restriction member is configured to have a plurality of exhaust passages arranged in parallel such that exhaust directions of the exhaust gases are spaced apart from each other.2. The engine according to claim 1 , wherein some of the cooling air is introduced in the exhaust direction of the exhaust gas of the muffler.3. The engine according to claim 1 , wherein a muffler cover configured to cover the muffler to form a muffler receiving chamber is provided claim 1 , and the exhaust gas restriction member is configured to discharge ...

ENGINE AND ENGINE-DRIVEN WORKING MACHINE

An engine is configured so that a muffler is affixed to the exhaust opening of the cylinder, and the air-cooled cylinder is cooled by a cooling fan. The engine is provided with a muffler cover for covering the muffler, and exhaust gas is discharged inside the muffler cover along the wall surface of the muffler. A second cooling air is combined with the exhaust gas flow from the upstream side thereof to be parallel thereto, and a first cooling air having been caused to flow under the muffler is caused to perpendicularly impinge against the exhaust gas flow on the downstream side thereof. Thus, the cooling airs are combined inside the muffler cover with the exhaust gas flow, and as a result the temperature of the exhaust gas is sufficiently reduced at the time when the exhaust gas is discharged from the opening of the muffler cover to the outside. 1. An engine comprising: a cylinder having a plurality of fins on an outer circumferential section thereof and in which a combustion chamber is formed; a cooling fan configured to generate cooling air to cool the cylinder; and a substantially rectangular parallelepiped muffler attached to the cylinder , wherein an exhaust gas outlet is installed in the muffler to discharge an exhaust gas along a first wall surface of the muffler in a direction perpendicular to an axial direction of the cylinder , and first cooling air passing through and between the fins flows along a second wall surface disposed at a downstream side in a discharge direction of the exhaust gas when seen from the first wall surface and merges with the exhaust gas.2. The engine according to claim 1 , wherein an exhaust gas passage including the exhaust gas outlet and configured to determine a discharge direction of the exhaust gas is formed in the muffler claim 1 , and the exhaust gas passage is disposed to be biased at an upstream side in an exhaust gas outflow direction on the first wall surface of the muffler.3. The engine according to claim 1 , wherein a ...

UTILITY VEHICLE

A utility vehicle includes: an air-cooled engine; a cooling fan disposed on one side of the engine with respect to a vehicle widthwise direction and configured to supply a cooling air towards a cylinder unit of the engine; an exhaust pipe disposed on the other side of the engine with respect to the vehicle widthwise direction and connected with an exhaust port of the cylinder unit; an oxygen sensor fitted to the exhaust pipe; and a shield configured to prevent muddy water, which is swirled by the cooling fan, from depending on the exhaust pipe. 1. A utility vehicle which comprises:an air cooled engine;a cooling fan disposed on one side of the engine with respect to a vehicle widthwise direction and configured to supply a cooling air towards a cylinder unit of the engine; the cooling fan being fixed to one end portion of an engine rotary shaft on the one side;an exhaust pipe disposed on the other side of the engine with respect to the vehicle widthwise direction and connected with an exhaust port of the cylinder unit;an oxygen sensor fitted to the exhaust pipe; anda shield configured to prevent mud water, which is swirled by the cooling fan, from depositing on the exhaust pipe.2. The utility vehicle as claimed in claim 1 , wherein the shield is so disposed as to surround the outer periphery of the exhaust pipe.3. The utility vehicle as claimed in claim 2 , wherein the shield is in the form of a plate material and is jointly fastened to the exhaust port together with the exhaust pipe.4. The utility vehicle as claimed in claim 1 , further comprising a shroud configured to guide the cooling air from the cooling fan towards the cylinder unit and an ignition plug.5. The utility vehicle as claimed in claim 1 , wherein the shield is provided with a discharge opening through which the cooling air claim 1 , after having been used to cool the cylinder unit claim 1 , is discharged to the outside of the engine.6. The utility vehicle as claimed in claim 1 , wherein:the shield ...

STRADDLE-TYPE VEHICLE

A straddle-type vehicle comprises a radiator through which air flowing from a front flows in a forward and rearward direction of a vehicle body; an engine which generates driving power for allowing the straddle-type vehicle to travel, the engine being disposed rearward of the radiator; and a cover unit covering from above a space formed between the radiator and the engine, and the engine, wherein the cover unit includes: a hard cover which is located at a front side of the cover unit, extends rearward from the radiator, and covers the space formed between the radiator and the engine; and a soft cover which is located at a rear side of the cover unit, extends rearward from the hard cover, and covers the engine. 1. A straddle-type vehicle comprising:a radiator through which air flowing from a front flows in a forward and rearward direction of a vehicle body;an engine which generates driving power for allowing the straddle-type vehicle to travel, the engine being disposed rearward of the radiator; anda cover unit covering from above a space formed between the radiator and the engine, and the engine,wherein the cover unit includes:a hard cover which is located at a front side of the cover unit, extends rearward from the radiator, and covers the space formed between the radiator and the engine; anda soft cover which is located at a rear side of the cover unit, extends rearward from the hard cover, and covers the engine.2. The straddle-type vehicle according to claim 1 , further comprising:a fan which is disposed in such a manner that an axial direction of a rotary shaft of the fan conforms to the forward and rearward direction, and forcibly flows the air through the radiator,wherein the hard cover includes a side wall extending in a vertical direction, on at least a first side in a vehicle width direction of the vehicle body.3. The straddle-type vehicle according to claim 2 ,wherein the first side in the vehicle width direction is a side where the fan is rotatable in a ...

Engine

An engine includes a crankcase with cylinders and fins on outer circumferences of the cylinders. A crank shaft penetrates the crankcase. A cooling fan is provided on an outer side of the crankcase and arranged coaxially with the crank shaft. A first cover covers an outer side of the cylinders and the crankcase, and the cooling fan. A second cover capable of being detached from/attached to the first cover. The first cover includes a first opening facing the cooling fan, and second openings facing the fins. The second cover includes an air inlet facing the first opening, and attached to the first cover to cover the first opening and the second openings.

PRESSURIZED OIL SYSTEM POWERED BY TWO-STROKE ENGINE

A two-stroke engine comprises a first oiling system and a second oiling system. The first oiling system includes a low-pressure pump that distributes oil from a first oil tank to the two-stroke engine. The second oiling system includes a pump mechanically coupled to a crankshaft of the two-stroke engine, wherein the pump distributes oil from a second oil tank to an accessory at a pressure greater than the first oil pressure, wherein oil distributed to the accessory is returned to the second oil tank. 1. A two-stroke engine comprising:a first oiling system that distributes oil from a first oil tank to the two-stroke engine at a first oil pressure;a first accessory; anda second oiling system that includes a pump mechanically coupled to a crankshaft of the two-stroke engine to distribute oil from a second oil tank to the first accessory at a second oil pressure greater than the first oil pressure, wherein oil distributed to the first accessory is returned to the second oil tank.2. The two-stroke engine of claim 1 , wherein the pump is a gerotor having an inlet port in fluid communication with the second oil tank and an outlet port in fluid communication with the first accessory.3. The two-stroke engine of claim 1 , wherein the second oiling system further includes a pressure regulator that regulates oil pressure provided to the first accessory.4. The two-stroke engine of claim 1 , further including:a sump configured to collect oil from the first accessory; anda scavenge pump that distributes oil from the sump to the second oil tank, wherein the scavenge pump is mechanically coupled to the crankshaft of the two-stroke engine.5. The two-stroke engine of claim 4 , wherein the scavenge pump and the pump are connected in a stack configuration along a single axis and coupled to the crankshaft of the two-stroke engine.6. The two-stroke engine of claim 1 , wherein the first accessory is a turbocharger coupled to provide compressed air to the two-stroke engine.7. The two-stroke ...

SPOOL SHUTTLE CROSSOVER VALVE AND COMBUSTION CHAMBER IN SPLIT-CYCLE ENGINE

A split-cycle engine includes: a first cylinder housing a first piston, wherein the first piston performs an intake stroke and a compression stroke, but does not perform an exhaust stroke; a second cylinder housing a second piston, wherein the second piston performs an expansion stroke and an exhaust stroke, but does not perform an intake stroke; and a valve chamber housing a valve, the valve comprising an internal chamber that selectively fluidly couples to the first and second cylinders, wherein the valve and internal chamber move within the valve chamber and relative to the first and second cylinders. 1. A split-cycle engine comprising:a first cylinder housing a first piston, wherein the first piston performs an intake stroke and a compression stroke, but does not perform an exhaust stroke;a second cylinder housing a second piston, wherein the second piston performs an expansion stroke and an exhaust stroke, but does not perform an intake stroke; anda valve cylinder housing a valve, the valve comprising an internal chamber that selectively fluidly couples to the first and second cylinders, wherein the valve and internal chamber move reciprocally within the valve cylinder and relative to the first and second cylinders, and wherein the valve has a port that fluidly couples the internal chamber to the first and second cylinder.2. The engine of claim 1 , wherein claim 1 , during movement of the valve claim 1 , the internal chamber fluidly couples with the first cylinder and fluidly couples with the second cylinder separately.3. The engine of claim 1 , wherein claim 1 , during movement of the valve claim 1 , the internal chamber fluidly couples with the first cylinder and fluidly couples with the second cylinder simultaneously.4. The engine of claim 3 , wherein claim 3 , during movement of the valve claim 3 , the internal chamber fluidly couples with the first cylinder and fluidly couples with the second cylinder simultaneously claim 3 , and wherein the valve and ...

SPOOL SHUTTLE CROSSOVER VALVE AND COMBUSTION CHAMBER IN SPLIT-CYCLE ENGINE

A split-cycle engine includes: a first cylinder housing a first piston, wherein the first piston performs an intake stroke and a compression stroke, but does not perform an exhaust stroke; a second cylinder housing a second piston, wherein the second piston performs an expansion stroke and an exhaust stroke, but does not perform an intake stroke; and a valve chamber housing a valve, the valve comprising an internal chamber that selectively fluidly couples to the first and second cylinders, wherein the valve and internal chamber move within the valve chamber and relative to the first and second cylinders. 1. A method of operating a combustion engine comprisingcompressing a working fluid in a first cylinder housing a first piston, wherein the first piston performs an intake stroke and a compression stroke, but does not perform an exhaust stroke;transferring the working fluid from the first cylinder to an internal chamber of a valve, wherein the valve is housed in a valve cylinder of the engine; andtransferring the working fluid from the internal chamber to a second cylinder housing a second piston, wherein the second piston performs an expansion stroke and an exhaust stroke, but does not perform an intake stroke,fluidly coupling the internal chamber to the first and second cylinders, andmoving the valve and internal chamber linearly and reciprocally within the valve cylinder and relative to the first and second cylinders.2. The method of claim 1 , wherein fluidly coupling the internal chamber to the first and second cylinders comprises no simultaneous fluid coupling of the internal chamber claim 1 , the first cylinder claim 1 , and the second cylinder throughout the cycle.3. The method of claim 1 , wherein fluidly coupling the internal chamber to the first and second cylinders comprises fluidly coupling the internal chamber to the first and second cylinder simultaneously.4. The method of claim 1 , wherein the valve and internal chamber comprise a maximum velocity and ...

THERMAL CHOKE, AUTOSTART GENERATOR SYSTEM, AND METHOD OF USE THEREOF

A thermal choke, includes (1) a body, comprising a heat conductive material, (2) an electric heater, on or in the body, (3) a temperature sensor, on or in the body, and (4) a fin, in a channel surrounded by the body. The thermal choke is configured to fit between a throttle assembly and a cylinder of a spark ignition engine. 1. A thermal choke , comprising:(1) a body, comprising a heat conductive material,(2) an electric heater, on or in the body,(3) a temperature sensor, on or in the body, and(4) a fin, in a channel surrounded by the body,wherein the thermal choke is configured to fit between a throttle assembly and a cylinder of a spark ignition engine.2. The thermal choke of claim 1 , comprising (4) a plurality of fins claim 1 , in the channel surrounded by the body.3. The thermal choke of claim 1 , wherein the heat conductive material comprises metal.4. The thermal choke of claim 3 , wherein the heat conductive material comprises brass.5. The thermal choke of claim 1 , comprising (2) a plurality of electric heaters on or in the body.6. (canceled)7. An engine claim 1 , comprising:(A) a throttle assembly,(B) a cylinder, fluidly connected to the throttle assembly,(C) a spark plug, in the cylinder, and(D) a thermal choke, between the throttle assembly and the cylinder, (i) a thermal choke body, comprising a heat conductive material,', '(ii) an electric heater, on or in the body, and', '(iii) a temperature sensor, on or in the thermal choke body., 'wherein the thermal choke comprises'}8. The engine of claim 7 , wherein the thermal choke further comprises:(iv) a fin, in a channel surrounded by the thermal choke body.9. The engine of claim 8 , comprising:(ii) a plurality of electric heaters on or in the thermal choke body, and(iv) a plurality of fins, in the channel surrounded by the thermal choke body,wherein the heat conductive material comprises metal.1012-. (canceled)13. The engine of claim 9 , further comprising:(I) a gasket spacer comprising a heat insulating ...

Motorcycle Engine Cooler

A device and method for cooling an air cooled motorcycle engine. A fan and a cover acting as a duct directs engine heat forward away from a rider when the motorcycle engine is hot and the motorcycle is stopped. When the motorcycle is in motion the fan is switched off and the passing air takes a reversed path and flows rearward over the engine fins cooling the engine. 1. A motorcycle engine cooler comprised of a bracket , a fan , a switch , a screen and a cover;the bracket is affixed to a side of an air cooled motorcycle engine over a cooling fin;the fan is affixed to the bracket oriented such that when the fan is operated air is drawn past the cooling fin away from the motorcycle engine;the screen is affixed to the bracket and covers the cooling fan without substantially restricting an airflow;the cover is affixed to the bracket and covers the screen and the fan;the cover has a port that is oriented towards a front side of the motorcycle;when the motorcycle is in a forward motion a passing air enters the port and the cover directs the passing air over the cooling fin;the switch is operatively connected to the fan and an electrical system integral to the motorcycle;when the motorcycle is stopped and a the switch is operated to turn on the fan causing an ambient air to be drawn over the fin and expelled through the port towards the front side of the motorcycle.2. A method of cooling a motorcycle engine comprising the motorcycle engine cooler in further characterized in that when the motorcycle stops a motorcycle rider operates the switch to turn the fan on and when the motorcycle is in the forward motion the motorcycle rider operates the switch to turn the fan off.3. A method of cooling a motorcycle engine comprising the motorcycle engine cooler in further characterized in that the fan is by default off and the switch automatically activates the fan when the motorcycle is stopped. The present application relates to U.S. Provisional Patent Application No. 62/216,927 ...

SELF COOLED ENGINE

Self-cooled engine including a cylinder, a cylinder head and a turbo-piston which freely reciprocates inside the cylinder. The cylinder head has a valve that achieves circumferential suction of air-fuel mixture into the cylinder. The valve mechanism is closed and opened by cylindrical cam by means of cam shaft. Circumferential suction of air-fuel mixture enables the cylinder to cool itself and to burn the fuel at the energy center effectively. The force of incoming stream of air-fuel mixture rotates the impeller on the piston which acts as a fan to cool the cylinder walls. The impeller blades deflect the flame from reaching the cylinder walls and acts as a thermal barrier between the energy center and cylinder walls. The high intensity compression swirl (HICS) created at the end of the compression stroke to ensure that the fuel combustion is efficient and instantaneous release of maximum energy. 1. An engine having at least one cylinder comprisinga cylinder head body comprising a Sunflower mechanism, an exhaust valve mechanism; anda reciprocating turbo-piston assembly movable through a stroke in the cylinder.2. The engine as claimed in claim 1 , wherein;the cylinder head body comprises:an inlet manifold and an exhaust manifold are disposed on the cylindrical surface of the cylinder head body;a valve lock housing on the cylindrical surface of the cylinder head body to accommodate a Sunflower valve upper guide lock, a Sunflower valve lock, a Sunflower valve lower guide lock, Sunflower valve assembly cover and a cylindrical cam follower;a bracket provides bearing support for the camshaft and pushrod;an annular protrusion disposed on the outer cylindrical surface of the exhaust chamber to stop the Sunflower valve assembly movement along the cylinder axis;a recess below the said annular protrusion to receive Sunflower assembly circlip disposed on the outer cylindrical surface of the exhaust chamber to stop the Sunflower valve assembly movement along the cylinder axis; ...

CYLINDER COOLING SYSTEM

A cylinder cooling system for aircraft engines is disclosed in which an air intake leads to multiple air chambers and the air is divided among the air chambers, which lead to the cylinders of the engine. In this way, approximately equal amounts of air of approximately the same temperature are able to pass over each cylinder, thereby providing more even cooling, resulting in more efficient engine performance. In addition, the cylinder cooling system is easily removable to access the engine spark plugs and fuel injectors for inspection and routine maintenance while not requiring the spark plug wiring or fuel lines to be disassembled in any way. 1. A device for directing air in order to provide cooling comprising: an air inlet designed and configured to divide incoming air into a plurality of airstreams; and', 'a plurality of air chambers coupled to the air inlet, each of the plurality of air chambers configured to receive a respective one of the plurality of airstreams, wherein each of the plurality of air chambers is designed and configured to direct a respective received one of the plurality of airstreams to a different cylinder of the aircraft engine when the plenum is attached to the aircraft engine., 'a first plenum and a second plenum, the first plenum and the second plenum designed to be removably attached to opposite sides of an aircraft engine, each of the first plenum and the second plenum including2. The device of wherein the first plenum includes three or more air chambers and wherein the second plenum includes three or more air chambers.3. The device of wherein the first plenum includes an inside portion claim 1 , the inside portion designed to be secured to the aircraft engine in a manner that allows for thermal expansion of the aircraft engine.4. The device of wherein the inside portion includes apertures with sufficient tolerance to accommodate fuel lines while allowing for thermal expansion of the aircraft engine and wherein the inside portion ...

SPOOL SHUTTLE CROSSOVER VALVE AND COMBUSTION CHAMBER IN SPLIT-CYCLE ENGINE

A split-cycle engine includes: a first cylinder housing a first piston, wherein the first piston performs an intake stroke and a compression stroke, but does not perform an exhaust stroke; a second cylinder housing a second piston, wherein the second piston performs an expansion stroke and an exhaust stroke, but does not perform an intake stroke; and a valve chamber housing a valve, the valve comprising an internal chamber that selectively fluidly couples to the first and second cylinders, wherein the valve and internal chamber move within the valve chamber and relative to the first and second cylinders. 142-. (canceled)43. A split-cycle engine comprising:a first housing comprising a first piston, wherein the first piston performs an intake stroke and a compression stroke, but does not perform an exhaust stroke;a second housing comprising a second piston, wherein the second piston performs an expansion stroke and an exhaust stroke, but does not perform an intake stroke; anda valve housing comprising a valve chamber, wherein the valve chamber moves within the valve housing to selectively fluidly couple the valve chamber to the first and second housings.44. The engine of claim 43 , wherein claim 43 , during movement of the valve chamber claim 43 , the valve chamber fluidly couples with the first housing and fluidly couples with the second housing separately.45. The engine of claim 43 , wherein claim 43 , during movement of the valve chamber claim 43 , the valve chamber fluidly couples with the first housing and fluidly couples with the second housing simultaneously.46. The engine of claim 45 , wherein the valve chamber comprises a maximum velocity and a minimum acceleration within 15 crankshaft degrees of when the valve chamber is fluidly coupled to the first and second housings simultaneously.47. The engine of claim 46 , wherein the valve chamber comprises a maximum velocity and a minimum acceleration when the valve chamber is fluidly coupled to the first and second ...

THERMAL CHOKE, AUTOSTART GENERATOR SYSTEM, AND METHOD OF USE THEREOF

A thermal choke, includes (1) a body, comprising a heat conductive material, (2) an electric heater, on or in the body, (3) a temperature sensor, on or in the body, and (4) a fin, in a channel surrounded by the body. The thermal choke is configured to fit between a throttle assembly and a cylinder of a spark ignition engine. 121-. (canceled)22. A pull-start activator for pull starting an engine , comprising:(I) a mount,(II) an electric motor, attached to the mount,(III) a spindle, attached to the motor, and(IV) optionally, a cover on the mount, covering the motor and spindle,wherein the spindle is configured to connect to a pull start of an engine.23. The pull-start activator of claim 22 , further comprising (V) a latch and latch supports claim 22 , attached to the mount claim 22 , for mounting the pull-start activator to attachment elements.24. The pull-start activator of claim 23 , comprising (IV) the cover.26. The auto-start remote generator system of claim 25 , whereinthe auto-star remote further comprises (c) a battery charger, connected to the power source, andthe power source comprises at least one battery.27. The auto-start remote generator system of claim 25 , wherein the generator further comprises an anti-diesel module.28. The auto-start remote generator system of claim 27 , wherein:the auto-start remote further comprises (c) a front panel, electrically connected to the controller, andthe front panel comprises(A) a display, electrically connected to the controller,(B) a start button, electrically connected to the controller, and(C) a stop button, electrically connected to the controller.29. The auto-start remote generator system of claim 28 , further comprising:(4) a first cable, electrically connecting the auto-start remote to the generator, and,(5) a second cable, electrically connecting the auto-start remote to the pull-start activator.30. The auto-start remote generator system of claim 29 , further comprising (6) a wireless remote control for ...

Power System with an Intake Gas Cooler

A power system including an intake gas cooler and aftercooler positioned gaseously downstream thereof. The intake gas cooler is configured to receive a fresh intake gas for combusting in an engine and a recirculated exhaust gas expelled by the engine for re-combusting therein. 1. A power system , comprising:an intake gas cooler configured to receive a fresh intake gas for combusting in an engine and a recirculated exhaust gas expelled by the engine for re-combusting therein; andan aftercooler positioned gaseously downstream of the intake gas cooler.2. The power system of claim 1 , wherein the aftercooler is an air-to-air cooler.3. The power system of claim 1 , further comprising a circuit fluid passage configured to receive a circuit fluid claim 1 , a portion of the circuit fluid passage being defined by the intake gas cooler claim 1 , the portion of the circuit fluid passage being positioned so as to cool the fresh intake gas and the recirculated exhaust gas.4. The power system of claim 3 , further comprising:a first heat transfer circuit coupled to the engine and comprising a first heat exchanger and a lube oil cooler fluidly coupled thereto, the first heat exchanger being configured to cool the circuit fluid, a portion of the first heat transfer circuit being defined by the circuit fluid passage; anda second heat transfer circuit fluidly coupled to the engine and comprising a second heat exchanger, the second heat exchanger being configured to cool a second circuit fluid that cools a block and head of the engine, the first heat transfer circuit is separate and distinct from the second heat transfer circuit, such that the circuit fluid does not mix with the second circuit fluid.5. The power system of claim 1 , further comprising:a fresh intake gas passage configured to receive the fresh intake gas;an exhaust gas recirculation (EGR) passage configured to route the recirculated exhaust gas; anda combined intake gas passage positioned gaseously downstream of the ...

MULTIPLE AXIS ROTARY ENGINE

A rotary engine including a housing and housing head enclosing a combustion chamber, a piston including an output shaft and a piston disk within the housing and rotatable on a piston rotation axis, a quadrant within the housing and around the piston and rotatable on a quadrant rotation axis, wherein the quadrant rotation axis is acutely angled to the piston rotation axis, and a post surrounding a segment of the piston disk. The post pivots relative to the piston about a post-piston rotation axis that is normal to the face of the piston disk. The post pivots relative to the quadrant about a post-quadrant pivot axis that is perpendicular to the quadrant rotation axis. The post rotates about the quadrant rotation axis relative to the housing. Combusting fuel injected into the combustion chamber expands and pushes on the piston disk to rotate the output shaft about the piston rotation axis. 1. A rotary engine comprising:a housing enclosing a combustion chamber;a piston rotatably mounted about a piston rotation axis and provided within the housing, the piston including an output shaft that longitudinally bisects a piston disk, wherein the piston disk includes a circumferential surface and parallel faces on either side of the output shaft, and wherein the circumferential surface is shaped to conform with an inner surface of the housing;a quadrant rotatably mounted about a quadrant rotation axis and provided within the housing, wherein the quadrant rotation axis is acutely angled to the piston rotation axis, wherein the quadrant includes a pair of quadrant cylinders and a pair of quadrant inserts, the quadrant cylinder having an external surface that rotates over an inner surface of the housing, and the quadrant inserts having a wedge surface that defines a wall of the combustion chamber;a cylindrically shaped post having a disk slot that pivotably receives a segment of the piston disk, wherein the post is provided on a post receiving surface within the quadrant, wherein ...

Thermal choke, autostart generator system, and method of use thereof

A thermal choke, includes (1) a body, comprising a heat conductive material, (2) an electric heater, on or in the body, (3) a temperature sensor, on or in the body, and (4) a fin, in a channel surrounded by the body. The thermal choke is configured to fit between a throttle assembly and a cylinder of a spark ignition engine.

COOLING SYSTEM FOR AIR-COOLED ENGINE

An air-cooled internal combustion engine including a crankshaft rotating about a crankshaft axis, a first cylinder having a first cylinder head, a second cylinder having a second cylinder head, and a blower assembly. The blower assembly includes a blower housing, a first fan, and a second fan. The first fan is positioned proximate the first cylinder and the second fan is positioned proximate the second cylinder. The first fan and the second fan are each received within the blower housing. 1. An air-cooled internal combustion engine , comprising:a crankshaft rotating about a crankshaft axis;a first cylinder having a first cylinder head;a second cylinder having a second cylinder head; anda blower assembly including a blower housing, a first fan, and a second fan;wherein the first fan is positioned proximate the first cylinder and the second fan is positioned proximate the second cylinder, the first fan and the second fan each being received within the blower housing.2. The air-cooled internal combustion engine of claim 1 , wherein the first cylinder and the second cylinder arranged in a V-twin configuration; andwherein the first fan is positioned above the first cylinder and the second fan is positioned above the second cylinder.3. The air-cooled internal combustion engine of claim 1 , wherein the first fan comprises a first fan axis of rotation at an angle relative to the crankshaft axis and the second fan comprises a second fan axis of rotation at an angle relative to the crankshaft axis.4. The air-cooled internal combustion engine of claim 1 , wherein the first fan comprises a first electric motor and the second fan comprises a second electric motor;wherein the first electric motor is controlled by a first controller and the second electric motor is controlled by a second controller.5. The air-cooled internal combustion engine of claim 1 , wherein the first fan comprises a first electric motor and the second fan comprises a second electric motor;wherein the first ...

AIR-COOLING CYLINDER HEAD OF GASOLINE ENGINE AND GASOLINE ENGINE HAVING THE SAME

The invention discloses an air-cooling cylinder head of a gasoline engine and a gasoline engine. The air-cooling cylinder head of a gasoline engine comprises a cylinder head main body (), and an intake passage (), an exhaust passage () and a spark plug mounting hole () arranged in the cylinder head main body (), a plurality of cooling fins () is arranged on the outer surface of the cylinder head main body (), a combustion chamber surface () is formed on the inner side of the cylinder head main body (), a longitudinally through air-cooling passage I () is arranged on the same side of the cylinder head main body () as the intake passage () and the exhaust passage (), a transversally through air-cooling passage II () is arranged between the intake passage () and the exhaust passage (), and both the longitudinally through air-cooling passage I () and the transversally through air-cooling passage II () are kept away from function holes on the cylinder head main body (). In the technical solution of the invention, cooling air flows through the outer surface of the combustion chamber wall from different directions to sufficiently decrease the temperature of the combustion chamber, so that the cylinder head has excellent cooling efficiency, and the power of the gasoline engine is increased. 1. An air-cooling cylinder head of a gasoline engine , comprising a cylinder head main body , and an intake passage , an exhaust passage and a spark plug mounting hole arranged in the cylinder head main body , a plurality of cooling fins is arranged on the outer surface of the cylinder head main body , and a combustion chamber surface is formed on the inner side of the cylinder head main body , wherein a longitudinally through air-cooling passage I is arranged on the same side of the cylinder head main body as the intake passage and the exhaust passage , a transversally through air-cooling passage II is arranged between the intake passage and the exhaust passage , and both the ...

ENGINE APPARATUS

An engine apparatus includes an exhaust gas purifier configured to purify exhaust gas from an engine. The exhaust gas purifier is mounted on the engine with a longitudinal direction of the exhaust gas purifier being orthogonal to an output shaft of the engine. A cooling fan is disposed on one side surface of the engine that intersects the output shaft. The exhaust gas purifier is supported by a cylinder head at a portion on an upper surface of the engine that is closer to the cooling fan. 1. An engine apparatus comprising an exhaust gas purifier configured to purify exhaust gas from an engine and mounted on the engine with a longitudinal direction of the exhaust gas purifier being orthogonal to an output shaft of the engine ,wherein a cooling fan is disposed on one side surface of the engine that intersects the output shaft, and the exhaust gas purifier is supported by a cylinder head at a portion on an upper surface of the engine that is closer to the cooling fan.2. The engine apparatus according to claim 1 , wherein the exhaust gas purifier is located between a head cover on the cylinder head and the cooling fan.3. The engine apparatus according to claim 2 , wherein an electric wiring connector for a detection member with respect to the exhaust gas purifier is disposed on an outer peripheral portion of the exhaust gas purifier that is on a side opposite a side of the cooling fan.4. The engine apparatus according to claim 2 ,wherein the intake manifold and the exhaust manifold are separately disposed on both side surfaces of the engine along the output shaft, and a power generator is disposed on a side of the exhaust manifold of the engine whereas an EGR device is disposed on a side of the intake manifold of the engine, a coolant pump being disposed on a side of the cooling fan of the engine, andwherein the exhaust gas purifier is located in a range of an installation width of the power generator and the EGR device and above the coolant pump.5. An engine apparatus ...

INTERNAL COMBUSTION ENGINE

The internal combustion engine includes a fan cover that covers a cooling fan driven by a crankshaft, a top cover that covers the fan cover, and a cooling air passage between the fan cover and the top cover. The fan cover includes a first rib facing the top cover in the cooling air passage. 1. An internal combustion engine , comprising:a fan cover that covers a cooling fan driven by a crankshaft;a top cover that covers the fan cover; anda cooling air passage between the fan cover and the top cover, whereinthe fan cover includes a first rib facing the top cover in the cooling air passage.2. The internal combustion engine according to claim 1 , whereinthe top cover includes a second rib facing the first rib.3. The internal combustion engine according to claim 2 , whereinthe top cover includes a cooling air intake portion, the cooling air intake portion has an upper surface and a side surface inclining downward from the upper surface, and the side surface includes a side surface intake port for taking in cooling air.4. The internal combustion engine according to claim 3 , whereina gap between the first rib and the second rib is formed to be narrower than an opening width of the side surface intake port.5. The internal combustion engine according to claim 3 , whereinthe second rib is formed at a position away from the inclining side surface.6. The internal combustion engine according to claim 1 , whereinthe fan cover has a fixing portion for fixing a recoil on a surface facing the top cover, and the first rib is provided on an outer side of the fixing portion.7. The internal combustion engine according to claim 1 , whereinthe crankshaft is a vertical crankshaft that extends substantially in the vertical direction and is to be used for a working machine.8. The internal combustion engine according to claim 7 , whereinthe working machine is a lawn mower having a blade at a lower part. The present application claims priority under 35 U.S.C. § 119 to Japanese Patent ...

MOTOR ENGINE HAVING AN OXYGEN SENSOR

A motor engine having an oxygen sensor is provided, including: a cylinder head, including a main body and a protruding tube protruding outwardly from the main body, the main body including a first end portion, a second end, and a combustion chamber, the protruding tube having a protrusive receptacle protruding outwardly therefrom, the main body defining an axial direction; an exhaust passage, communicated with the combustion chamber and the protruding tube; an oxygen sensor, inserted into the protrusive receptacle, including a sensing portion which is inserted into the exhaust passage; wherein as viewed in a lateral direction of the cylinder head, two surfaces of the main body along the axial direction disposed on two opposite sides defines two boundary lines, the oxygen sensor and the main body are in an overlapping arrangement and does not protrude out of the two boundary lines. 1. A motor engine having an oxygen sensor , including:a cylinder head, including a main body and a protruding tube protruding outwardly from the main body, the main body including a first end portion configured to be assembled a transmission gear assembly, a second end portion disposed opposite to the first end portion, and a combustion chamber, the second end portion configured to be assembled a cylinder, the protruding tube having a protrusive receptacle protruding outwardly therefrom, the main body defining an axial direction passing through the first end portion and the second end portion;an exhaust passage, communicated with the combustion chamber and the protruding tube;an oxygen sensor, inserted into the protrusive receptacle, including a sensing portion which is inserted into the exhaust passage;wherein as viewed in a lateral direction of the cylinder head, the main body has two lateral surfaces disposed on the two opposite sides along the axial direction, the main body defines two boundary lines respectively at least extending along the two lateral surfaces, the oxygen sensor and ...

Handheld Work Apparatus

A handheld work apparatus has a fan wheel and a combustion engine having a cylinder and a crankcase. The fan wheel, arranged in a housing, is driven by the engine in a rotational direction. The housing includes a rear wall and a peripheral delimiter having a first and a second end delimiting an outlet for cooling air for the cylinder. The outlet extends from the second to the first end in the rotational direction. A throughflow-opening is provided in the housing, through which the cooling air flows out to the outside of the crankcase. The angular distance, measured proceeding from the first end in the rotational direction, between the first end and the throughflow-opening is smaller than the angular distance, measured proceeding from the throughflow-opening in the rotational direction, between the throughflow-opening and the second end. The angular distances are each measured about the rotational axis as a peripheral angle. 1. A handheld work apparatus comprising:a combustion engine having a cylinder and a crankcase;a fan wheel defining a rotational axis and configured to convey cooling air for the combustion engine;a fan wheel housing;said fan wheel being arranged in said fan wheel housing and configured to be driven rotatingly in a rotational direction by said combustion engine;said fan wheel housing including a peripheral delimiter and a rear wall which faces said crankcase of said combustion engine;said peripheral delimiter having a first end and a second end;said first end and said second end delimiting an outlet for cooling air to be conveyed to said cylinder;said outlet extending from said second end to said first end in said rotational direction;said fan wheel housing defining a throughflow-opening through which the cooling air flows out of said fan wheel housing to the outside of said crankcase;wherein an angular distance (α), measured proceeding from said first end in said rotational direction, between said first end and said throughflow-opening is smaller ...

GENERAL PURPOSE ENGINE

A general purpose engine with a cleaning access window defined therein is in the form of an air cooled engine, having a cylinder unit made up of a cylinder and a cylinder head, and includes a housing for covering at least the cylinder unit and a cleaner covering removably fitted to the housing for covering the filter section of the air cleaner, the housing being formed with a blow window so as to confront gaps between a plurality of cooling fins provided in the cylinder unit, and the cleaner covering has a closing section defined therein for covering the blow window. 1. An air cooled general purpose engine having a cylinder unit comprised of a cylinder and a cylinder head , and equipped with a cleaning access window , which engine comprises:a housing to cover at least the cylinder unit, and;a cleaner covering mounted removably on the housing to cover a filter section of an air cleaner, and;in which the housing is formed with a blow window facing a plurality of cooling fins provided in the cylinder unit, andin which a closing section to close the blow window is formed in the cleaner covering.2. The general purpose engine as claimed in claim 1 , in which the general purpose engine is in the form of a V-shaped two cylinder engine having the two cylinder units claim 1 , the filter section of the air cleaner being disposed between those two cylinder units.3. The general purpose engine as claimed in claim 2 , in which the blow window is formed for and in each of the cylinder unit so as to confront the respective cylinder unit.4. The general purpose engine as claimed in claim 2 , in which an engine rotary shaft extends vertically and the two cylinder units are disposed horizontally.5. The general purpose engine as claimed in claim 1 , in which the cleaner covering is fitted to the housing by means of a fastener claim 1 , the fastener comprising an engagement portion which is engaged with a to-be-engaged portion of the housing when in a condition having been inserted in the ...

Cooling system for air-cooled engines

A cooling system for an air-cooled engine includes a plurality of electric fans, a plurality of ducts, each duct configured to receive one of the plurality of electric fans, a housing, the housing configured to be coupled to the engine and to include at least one opening, each opening is configured to be coupled to receive one of the plurality of ducts to direct air from the electric fans to a plurality of target locations, a sensor, the sensor is configured to acquire sensor data regarding the operation of the engine, and a processing circuit, the processing circuit is configured to receive the sensor data from the sensor and to control operation of the plurality of electric fans in accordance with the sensor data.

AIR-COOLED ENGINE GENERATOR

An air-cooled engine generator usable in an enclosed and relatively small indoor space includes an engine including a crank shaft on which a generator and a fan are provided. An outside cover includes a discharge aperture which discharges cooling air generated by the fan, and covers the engine, the generator, the fan, and a cooling section. The cooling section includes a mixing chamber where a coolant introduced from the outside and exhaust gas discharged from an exhaust pipe of the engine mix with each other, and an outer circumferential surface which is cooled by the coolant that is introduced into the mixing chamber. The exhaust gas is mixed with and cooled by the coolant in the mixing chamber while the cooling air which is supposed to be discharged out of the air-cooled engine generator is cooled by the outer circumferential surface of the cooling section. 1. An air-cooled engine generator comprising:an engine including a cylinder block, a cylinder head attached to the cylinder block and including an exhaust port, an exhaust pipe connected to the exhaust port, and a crank shaft located in the cylinder block;a generator and a fan each provided on the crank shaft;a cover including a discharge aperture which discharges cooling air generated by the fan and that covers the engine, the generator, and the fan; anda cooling section including a mixing chamber that mixes a coolant introduced from outside of the air-cooled engine generator and exhaust gas discharged from the exhaust pipe, and an outer circumferential surface cooled by the coolant introduced into the mixing chamber.2. The air-cooled engine generator according to claim 1 , wherein the cooling section is covered by the cover.3. The air-cooled engine generator according to claim 2 , wherein the cooling section is located between the cylinder block and the discharge aperture claim 2 , or between the cylinder head and the discharge aperture.4. The air-cooled engine generator according to claim 1 , wherein at ...

AIR COOLED ENGINE AND ENGINE-POWERED WORK TOOL

An air-cooled engine includes a cylinder provided with a plurality of cooling fins at an outer peripheral surface of the cylinder, a cooling fan, a cylinder cover covering the cylinder, an air guide plate, and an air guide portion. The air guide plate is positioned between an inner surface of the cylinder cover and the fins. The cooling fan generates cooling air stream for cooling the cylinder, and the air guide plate is configured to guide the cooling air stream to flow through a space between the inner surface of the cylinder cover and the fins. A first small space is defined between the air guide plate and the inner surface of the cylinder cover. The air guide portion covers at least a part of the first small space at an upstream side of the air guide plate in the axial direction of the drive shaft. 1. An air-cooled engine comprising:an engine body provided with a cylinder having a cylinder portion and a plurality of cooling fins provided at an outer peripheral surface of the cylinder portion, and a drive shaft provided with a cooling fan, the drive shaft defining an axis extending in an axial direction;a cylinder cover covering the cylinder;an air guide plate provided at an internal space of the cylinder cover and between an inner surface of the cylinder cover and the plurality of fins, the cooling fan being configured to generate cooling air stream within the cylinder cover for cooling the cylinder, and the air guide plate being configured to guide the cooling air stream to flow through a space between the inner surface of the cylinder cover and the plurality of fins, a first small space being defined between the air guide plate and the inner surface of the cylinder cover; andan air guide portion provided in the internal space of the cylinder cover and configured to cover at least a part of the first small space at an upstream side of the air guide plate in the axial direction of the drive shaft.2. The air-cooled engine as claimed in claim 1 , wherein the air ...

ENGINE OPERABLE IN HORIZONTAL AND VERTICAL SHAFT ORIENTATIONS

A small air-cooled internal combustion engine includes an aluminum engine block including a cylinder, a crankcase reservoir, and an outer surface, a piston positioned within the cylinder and configured to reciprocate within the cylinder, and a crankshaft coupled to the piston and configured to rotate about a crankshaft axis, wherein a portion of the crankshaft is located in the crankcase reservoir, where the outer surface of the engine block has an edge located a radial distance from the crankshaft axis and the radial distance is less than less than a standard minimum distance between the crankshaft axis and a horizontal mounting surface for a standard garden mounting flange for a horizontally-shafted engine. 1. A small air-cooled internal combustion engine , comprising: a cylinder,', 'a crankcase reservoir, and', 'an outer surface;, 'an aluminum engine block includinga piston positioned within the cylinder and configured to reciprocate within the cylinder; anda crankshaft coupled to the piston and configured to rotate about a crankshaft axis, wherein a portion of the crankshaft is located in the crankcase reservoir;wherein the outer surface of the engine block has an edge located a radial distance from the crankshaft axis and the radial distance is less than a standard minimum distance between the crankshaft axis and a horizontal mounting surface for a standard garden mounting flange for a horizontally-shafted engine.2. The small air-cooled internal combustion engine of claim 1 , wherein the standard minimum distance is 4.25 inches.3. The small air-cooled internal combustion engine of claim 1 , wherein the standard minimum distance is 6 inches.4. The small air-cooled internal combustion engine of claim 1 , wherein the engine block does not include a lubricant inlet that allows a user to add lubricant to the crankcase reservoir.5. The small air-cooled internal combustion engine of claim 1 , wherein a mechanical governor is not located in the crankcase reservoir.6. ...

GENERAL PURPOSE ENGINE

A general purpose engine includes: a crankcase to support an engine rotary shaft; a cylinder unit extending from the crankcase in a direction perpendicular to an axis of the engine rotary shaft; a cooling fan fixed to one of opposite ends of the engine rotary shaft; and a fan housing configured to have an air induction opening defined therein for the cooling fan and to cover the crankcase and the cylinder unit from one side of the engine rotary shaft. At a position of the fan housing which is opposed to the cooling fin of the cylinder unit, a cleaning access window is defined. The cleaning access window is covered by a debris covering that is capable of being selectively opened and closed. The debris covering has one end portion engaged with the fan housing and the other end portion removably mounted on the fan housing by a magnetic body. 1. A general purpose engine which comprises:a crankcase configured to support an engine rotary shaft rotatably;a cylinder unit extending from the crankcase in a direction perpendicular to an axis of the engine rotary shaft;a cooling fan fixed to one of opposite ends of the engine rotary shaft on one side thereof; anda fan housing configured to have an air induction opening defined therein for the cooling fan and also to cover the crankcase and the cylinder unit from one side of the engine rotary shaft, whereina cleaning access window is defined at a position of the fan housing, which position is opposed to a cooling fin of the cylinder unit,the cleaning access window is covered by a debris covering capable of being selectively opened and closed,the debris covering has one end portion engaged with the fan housing and also has an other end portion removably mounted on the fan housing by means of a magnetic body, a covering portion opposed to the cleaning access window;', 'a to-be-engaged portion engaged to the fan housing; and', 'a retainer portion configured to retain the magnetic body,, 'the debris covering comprisesthe retainer ...

POWER SYSTEMS AND ENCLOSURES HAVING IMPROVED COOLING AIR FLOW

Power systems and enclosures having improved cooling air flow are disclosed. An example power system includes an enclosure; an air inlet location at a first location on an exterior of the enclosure to permit intake of air from the exterior of the enclosure to an interior of the enclosure; an air exhaust location at a second location on the exterior of the enclosure to exhaust the air taken in through the air inlet location; and an air routing path defined by the enclosure to direct the air from the air inlet location to the air exhaust location, in order: through one or more first compartments in the enclosure, the one or more first compartments containing at least one of a compressor, a generator, or power conversion circuitry; and through one or more second compartments, the one or more second compartments comprising an engine and a muffler. 122-. (canceled)23. A power system having improved airflow , the power system comprising:an enclosure;an air inlet location at a first location on an exterior of the enclosure to permit intake of air from the exterior of the enclosure to an interior of the enclosure;an air exhaust location at a second location on the exterior of the enclosure to exhaust the air taken in through the air inlet location; and through one or more first compartments in the enclosure, the one or more first compartments containing a generator; and', 'through one or more second compartments, the one or more second compartments comprising an engine and a muffler; and, 'an air routing path defined by the enclosure to direct the air from the air inlet location to the air exhaust location, in ordera fan configured to urge the air to create a higher pressure in the one or more second compartments than in the one or more first compartments.241. The power system as defined in claim , wherein the first location is on a side of the enclosure and the second location is at a top of the enclosure when the power system is installed in a predetermined orientation. ...

GENERAL-PURPOSE ENGINE

A general-purpose engine is provided with an engine body having an exhaust system part connected to a cylinder, and also with a cooling mechanism for cooling the engine body. The cooling mechanism is provided with a cooling fan which rotates to generate a cooling air flow, a discharge section which discharges the cooling air flow generated by the rotation of the cooling fan, and a cooling air flow opening which is disposed in the upper part of a partition for separating a cylinder chamber having the cylinder provided therein from a muffler chamber having a canister muffler provided therein, connects the cylinder head side of the cylinder chamber and the upper side of the muffler chamber, and causes a cooling air flow to flow from the cylinder head side of the cylinder chamber to the muffler chamber. 1. A general-purpose engine comprising an engine main body having a muffler connected to a cylinder; and a cooling mechanism which cools the engine main body ,wherein the cooling mechanism includes:a cooling fan which generates a cooling air flow by rotating;a blowing part which blows the cooling air flow generated by rotation of the cooling fan; anda cooling air circulation opening which is disposed at an upper part of a partition which partitions a cylinder chamber to which the cylinder is provided and a muffler chamber to which the muffler is provided, and communicates a side of a cylinder head of the cylinder chamber and an upward side of the muffler chamber,wherein a ventilation port is formed more to a side of the cylinder chamber than the partition, in an upper surface of a shroud which covers at least part of the cylinder chamber and the muffler chamber.2. (canceled)3. The general-purpose engine according to claim 1 , wherein a site on the upper surface of the shroud at which the ventilation port is formed is provided to protrude so as to separate from the cylinder head.4. The general-purpose engine according to claim 1 , wherein the ventilation port is ...

Low-Emission Cylinder with External Scavenging Duct

The present utility model relates to the technical field of engines, in particular to a low-emission cylinder with an external scavenging duct, wherein cylinder side covers are mounted on two opposite side walls of a cylinder body, a top surface of the cylinder body is a top surface of the uppermost cooling fin and a bottom surface thereof is a mounting surface, an exhaust port is provided in an inner cylinder bore of the cylinder body, an exhaust outlet is provided on a side wall of the cylinder body corresponding to the exhaust port, scavenging ports are respectively provided on two side walls in the inner cylinder bore adjacent to the exhaust port, a scavenging bore is provided in the side wall opposite to the exhaust port in an axial direction, a scavenging duct inlet is provided on the mounting surface corresponding to the side wall of the scavenging bore, scavenging grooves are respectively provided outside the side walls corresponding to the scavenging ports, and scavenging duct is formed between the corresponding scavenging port, the scavenging groove, the scavenging bore, the scavenging duct inlet and the cylinder side cover. The advantages are as follows: the low-emission cylinder can not only ensure the power performance and economical efficiency of engines, has low emission values without needing a secondary purification treatment, but can also satisfy the requirements on the limit values of emission standard. 1. A low-emission cylinder with an external scavenging duct , comprising a cylinder body and cylinder side covers , the cylinder side covers being mounted on two opposite side walls of the cylinder body , the upper side of the cylinder body being provided with cooling fins , a top surface of the cylinder body being a top surface of the uppermost cooling fin and a bottom surface of the cylinder body being a mounting surface , an inner cylinder bore and a combustion chamber being provided inside the cylinder body , an exhaust port being provided in ...

SYSTEMS AND METHODS FOR ENGINE COOLING DURING S/S EVENTS

Methods and systems are provided for reducing temperature of an engine or single cylinder(s) of the engine at start/stop events where the engine is stopped from combusting air and fuel, and in response to an overheating engine condition. In one example, a method comprises activating an electric air compressor to direct cooling air flow through a first single cylinder of the engine, to reduce a temperature of the first single cylinder to a desired temperature prior to a request to restart the engine. In this way, a single cylinder indicated to be overheating may be effectively cooled, without employing methodology that would otherwise cool the engine as a whole, which may thus prevent engine degradation and which may conserve power of an onboard energy storage device. 1. A method comprising:activating an electric compressor in an intake of an engine of a vehicle, to direct an air flow through a first single cylinder of the engine during a start/stop event where the engine is not combusting air and fuel, to reduce a temperature of the first single cylinder to a desired temperature prior to a request to restart the engine.2. The method of claim 1 , further comprising positioning the first single cylinder with both an intake valve and an exhaust valve of the first single cylinder in an at least partially open configuration claim 1 , to direct the air flow through the first single cylinder.3. The method of claim 2 , wherein positioning the first single cylinder with both the intake valve and the exhaust valve in the at least partially open configuration includes adjusting a timing of opening of the intake valve and the exhaust valve claim 2 , via controlling rotation of a first camshaft mechanically coupled to the intake valve claim 2 , and via controlling rotation of a second camshaft mechanically coupled to the exhaust valve.4. The method of claim 1 , further comprising commanding a throttle positioned in the intake of the engine to a fully open position just after the ...

WORK VEHICLE

A work vehicle includes a hood, an engine, a radiator, an air cleaner, and a condenser. The hood covers an engine compartment located on a front portion of a traveling body. The engine is a drive source. The radiator supplies a coolant to the engine. The air cleaner takes in outside air and supplies the air to the engine. The condenser cools a refrigerant. In front of the radiator, the air cleaner and the condenser are disposed one above the other. The condenser is withdrawable in the left and right direction. 1. A work vehicle comprising:an engine on a front portion of a traveling body and comprising a forced induction device;a radiator configured to supply a coolant to the engine;an intercooler configured to cool compressed air from the forced induction device; andan oil cooler configured to cool lubricant, the intercooler and the oil cooler being disposed one above the other in front of the radiator with the intercooler being above the oil cooler and secured to a stationary frame, the oil cooler being located within the stationary frame and pivotable about a vertical axis.2. The work vehicle according to claim 1 , further comprising:an air cleaner configured to take in outside air and supply the air to the engine, the air cleaner being secured to a location in front of the intercooler and spaced apart from the intercooler; anda condenser configured to cool a refrigerant, the air cleaner and the condenser being disposed one above the other, the condenser being withdrawable in a left and right direction.3. The work vehicle according to claim 1 , further comprising:an air cleaner configured to take in outside air and supply the air to the engine, the air cleaner being secured to a location in front of the intercooler and spaced apart from the intercooler; anda condenser configured to cool a refrigerant, the air cleaner and the condenser being disposed one above the other, the condenser being pivotable about a fore-and-aft axis.4. A work vehicle comprising:an engine ...

AIR-COOLED ENGINE AND ENGINE WORKING MACHINE

An air-cooled engine includes a muffler that is attached to an exhaust port of a cylinder and a fan case that houses a cooling fan, and a cylinder cooling room is formed by a cylinder cover that houses the cylinder. A muffler cooling room is formed by a first muffler cover that covers at least some of the muffler through a clearance and a second muffler cover that covers at least some of the first muffler cover through a clearance. Some of cooling air generated by the cooling fan is supplied to the muffler cooling room. The cooling air is supplied to at least one of a first space between the muffler and the first muffler cover and a second space between the first muffler cover and the second muffler cover. 1. An air-cooled engine comprising: a cylinder; a crank case that is attached to the cylinder and rotatably supports a driving shaft; a cooling fan that is attached to the driving shaft; a muffler that is attached to an exhaust port of the cylinder and exhausts exhaust gas passing inside from an exhaust exit; a fan case that covers the cooling fan; a cylinder cover that covers the cylinder to form a cylinder cooling room; and a muffler cover that covers the muffler to form a muffler cooling room , the air-cooled engine characterized in thatthe muffler cover includes a first muffler cover that covers at least some of the muffler and a second muffler cover that covers at least some of the first muffler cover, and some of cooling air generated by the cooling fan is supplied to at least one of a first space between the muffler and the first muffler cover and a second space between the first muffler cover and the second muffler cover, andan air guiding portion is provided inside the muffler cover, the air guiding portion guiding cooling air that is supplied to the first space or the second space to an exhaust exit side of the muffler.2. The air-cooled engine according to claim 1 , further comprising a second communication port that allows the cylinder cooling room and ...

V-TWIN ENGINE ASSEMBLY

One embodiment of the invention relates to an internal combustion engine including an engine block, a crankshaft configured to rotate about a crankshaft axis, a flywheel coupled to the crankshaft, a throttle body, an electric fan, and an air filter assembly configured to filter incoming air from an air intake and provide cleaned air to a throttle body. The engine block includes a cylinder. The throttle body is configured to throttle incoming air to the cylinder. 1. An internal combustion engine comprising:an engine block including a cylinder;a crankshaft configured to rotate about a crankshaft axis;a flywheel coupled to the crankshaft;a throttle body configured to throttle incoming air to the cylinder;an electric fan positioned adjacent the cylinder; andan air filter assembly configured to filter incoming air from an air intake and provide cleaned air to a throttle body.2. The engine of claim 1 , further including a screen coupled to the electric fan claim 1 , wherein the screen rotates with the electric fan.3. The engine of claim 1 , wherein the cylinder comprises a first cylinder;wherein the electric fan comprises a first electric fan directly adjacent the first cylinder;wherein the engine further comprises a second cylinder;wherein the engine further comprises a second electric fan directly adjacent the second cylinder; andwherein the throttle body is configured to throttle incoming air to the first cylinder and the second cylinder.4. The engine of claim 3 , wherein the first electric fan rotates about a first fan axis not parallel to the crankshaft axis and the second electric fan rotates about a second fan axis not parallel to the crankshaft axis.5. The engine of claim 3 , wherein the first electric fan rotates about a first fan axis not colinear to the crankshaft axis and the second electric fan rotates about a second fan axis not colinear to the crankshaft axis.6. The engine of claim 3 , wherein the air filter assembly is substantially adjacent the flywheel.7 ...

CONVEX FAN SHROUD

A convex fan shroud for use with an automotive engine cooling system having a fan and a fan-cooled, liquid-to-air radiator is disclosed. The convex fan shroud has an optimized shape that leads to high air flow rates through the radiator. The convex fan shroud includes a front frame that defines an air-intake opening, a convex top wall connected to the frame, a convex bottom wall connected to the frame, and a pair of opposed convex side walls connected to the frame and to the top and bottom walls. The interior surfaces of the walls are smooth. The convex walls define a barrel-shaped shroud body that includes a round engine-facing opening to accommodate the fan. In addition to generating a higher flow rate, the disclosed inventive concept for a smooth convex fan shroud is relatively low cost to produce and has a relatively high degree of rigidity. 1. A shroud for an automotive engine cooling system having a fan and a fan-cooled , liquid-to-air radiator , said shroud comprising:an inside;a front frame;a fan opening;a top wall connected to said frame;a bottom wall connected to said frame;a first side wall connected to said frame and said top and bottom walls; anda second side wall connected to said frame and said top and bottom walls, said walls being bowed outward relative to said inside between said frame and said opening, said outward bow of said walls defining a semi-circle in cross-section, one end of said semi-circle ending at said frame and the other end ending at said opening.2. The shroud for an automotive engine cooling system of wherein said front frame defines an air-intake opening.3. The shroud for an automotive engine cooling system of wherein said top wall claim 1 , said bottom wall claim 1 , said first side wall and said second side wall define a convex-shaped shroud body.4. (canceled)5. The shroud for an automotive engine cooling system of wherein said engine-facing opening is substantially round.6. The shroud of an automotive engine of cooling system ...

OVERHEAD CAMSHAFT ENGINE

The overhead camshaft engine () includes a cylinder block (), a crankcase () attached to a lower part of the cylinder block to define a crankcase chamber (), a bearing retaining member () attached to a part of the cylinder block, a crankshaft () rotatably supported by a pair of bearings () supported by the cylinder block and the bearing retaining member, respectively, and a crankshaft pulley () attached to a part of the end of the crankshaft projecting outward from the bearing supported by the bearing retaining member. 1. An overhead camshaft engine , comprising:a cylinder block defining a cylinder in cooperation with a cylinder head;a crankcase attached to a lower part of the cylinder block to define a crank case chamber in cooperation with a part of the cylinder block;a first bearing provided on the cylinder block to rotatably support a first end of a crankshaft of the engine;a second bearing provided on a bearing retaining member attached to a part of the cylinder block to rotatably support a second end of the crankshaft;a camshaft rotatably supported in an upper part of the cylinder head and provided with a camshaft pulley;a crankshaft pulley attached to a part of the second end of the crankshaft projecting outward from the second bearing; anda timing belt passed around the camshaft pulley and the crankshaft pulley.2. The overhead camshaft engine according to claim 1 , wherein the cylinder head is integrally formed with the cylinder block.3. The overhead camshaft engine according to claim 1 , wherein the first bearing is fitted in a hole formed in the cylinder block.4. The overhead camshaft engine according to claim 1 , wherein the bearing retaining member consists of an integrally formed member claim 1 , and a central bore is formed in the bearing retaining member for receiving the second bearing therein.5. The overhead camshaft engine according to claim 1 , wherein the cylinder block is integrally formed with a belt cover that covers a part of the timing belt. ...

OVERHEAD CAMSHAFT ENGINE

In an overhead cam engine () having a first bearing () supported by the cylinder block (), and a second bearing () supported by a bearing retaining member () attached to the cylinder block inside a crankcase chamber () for rotatably supporting a crankshaft (), the crankshaft is provided with a reduced diameter portion () having a smaller outer diameter than an adjoining part of the crankshaft on a side of the second bearing facing away from a cylinder () defined in the cylinder block, and a crankshaft pulley () is mounted on the reduced diameter portion. 1. An overhead camshaft engine , comprising:a first bearing and a second bearing provided on an engine main body;a crankshaft having a first end rotatably supported by the first bearing and a second end rotatably supported by the second bearing;a camshaft rotatably supported in an upper part of the engine main body for actuating an intake valve and an exhaust valve of the engine;a crankshaft pulley fitted on the second end of the crankshaft;a camshaft pulley fitted on the camshaft; anda timing belt passed around the crankshaft pulley and the camshaft pulley;wherein the crankshaft is provided with a reduced diameter portion having a smaller outer diameter than an adjoining part of the crankshaft on a side of the second bearing facing away from a cylinder defined in the engine main body, and the crankshaft pulley is mounted on the reduced diameter portion.2. The overhead camshaft engine according to claim 1 , wherein the engine main body includes a cylinder block defining the cylinder therein and a crankcase attached to a lower end of the cylinder block to define a crankcase chamber jointly with the cylinder block claim 1 , andwherein the first bearing is supported by the cylinder block, and the second bearing is supported by a bearing retaining member attached to the cylinder block inside the crankcase chamber.3. The overhead camshaft engine according to claim 2 , wherein the crankcase is attached to the lower end of ...

ENGINE BLOWER

An engine blower is achieved which can obtain a large blowing volume and a high cooling efficiency of the cylinder and the muffler. A suction opening is formed in the second case partitioning the volute chamber and the muffler chamber at the front of the partition plate and at the rear of the muffler cover. The volute chamber has a shape that the width perpendicular to the front-rear direction is locally narrowed behind the suction opening, and a first curved portion is provided immediately after the suction opening, and a first curved portion is provided in the second case. Immediately before the first curved portion, the air pressure locally drops due to the air supply flow whose flow velocity is increased. The air pressure becomes a negative pressure state when viewed from the muffler chamber. Air flows from the muffler chamber side to the volute chamber side via the suction opening. 1. An engine blower comprising:an engine serving as a power source;a muffler mounted to a cylinder of the engine and in front of the cylinder for causing exhaust gas from the cylinder to pass and discharge;a muffler cover covering the muffler and forming a muffler chamber in which accommodate the muffler;a blower fan for generating a blown air flow emitted forward in a volute chamber by rotation of a drive shaft of the engine;a cooling fan for generating a cooling air for cooling the cylinder by the rotation of the drive shaft;a negative pressure generating device provided in the volute chamber for generating a negative pressure by a flow of the blown air;a partition wall for partitioning the muffler chamber and a cylinder chamber that accommodates the cylinder; anda suction opening communicating the muffler chamber and the cylinder chamber in front of the partition wall and causing air flow from a side of the muffler chamber to a side of the cylinder chamber to pass by the negative pressure.2. The engine blower according to claim 1 , further comprising a case covering the blower fan ...

VEHICLE STRUCTURE FOR MOUNTING AIR-COOLED INTERNAL COMBUSTION ENGINE

In the vehicle structure for mounting an air-cooled internal combustion engine, a crankcase is supported by a body frame in such a manner that crankcase hanger bosses on the crankcase are joined to the body frame via crankcase hanger plates. A cylinder head has left and right cylinder head hanger seating surfaces formed perpendicular to a left-right horizontal direction by cutting out right and left symmetric areas close to side edges of left and right side faces of the cylinder head along with parts of cooling fins. One ends of left and right cylinder head hanger members are fastened respectively to cylinder head hanger attaching seats on which the left and right cylinder head hanger seating surfaces of the cylinder head are formed. The other ends of the left and right cylinder head hanger members are fastened individually to the body frame. The structure is capable of using an engine body itself to improve stiffness of a body frame without use of any particular reinforcing members. 1. A vehicle structure for mounting an air-cooled internal combustion engine , in which the air-cooled internal combustion engine is mounted on a body frame of a saddle riding vehicle , the air-cooled internal combustion engine is configured such that a cylinder and a cylinder head are vertically stacked on a crankcase in this order and cooling fins are formed on an outer periphery of at least the cylinder head:wherein the crankcase has hanger bosses formed at predetermined forward and rearward positions, and the crankcase is supported by the body frame with the hanger bosses joined to the body frame via crankcase hanger members;the cylinder head has left and right cylinder head hanger seating surfaces formed to be perpendicular to a left-right horizontal direction by cutting out right and left symmetric areas of the cylinder head as well as part of the cooling fins, the right and left symmetric areas being adjacent to side edges of left and right side faces of the cylinder head;the ...

Engine exhaust heat management system

A heat management system for air-cooled engines suitable to power yard care equipment or vehicles. The system may generally comprise an engine, a blower configured to blow ambient cooling air across the engine, and an exhaust system comprising an exhaust header and a muffler. The exhaust header has an inlet end which receives heated exhaust gas from the engine and an outlet end fluidly coupled to the muffler. An air control baffle is configured to redirect a portion of the cooling air from the blower towards the exhaust header and the muffler to enhance cooling the exhaust system. The system may further include an outermost protective shield exposed to equipment operators and an inner heat barrier or shield located between the muffler and protective shield. The system is designed to ameliorate both radiative and convective sources of heat transfer to maintain the protective shield at temperatures below established industry standards.

AIR-COOLED ENGINE

An air-cooled engine capable of enhancing detection precision of a temperature sensor includes a crankcase, a crankshaft, a fan case, and an engine cooling fan. The installation direction of the crankshaft defines the front and rear direction. The fan case is provided in a front part of the crankcase, and the engine cooling fan is accommodated in the fan case. The air-cooled engine includes a cooling wind passage, a wind passage terminal end wall, an oil splashing device, and a temperature sensor. The wind passage terminal end wall is provided in a rear end of the cooling wind passage, the oil splashing device is provided on the rear side of the wind passage terminal end wall and formed to splash engine oil in the crankcase onto the wind passage terminal end wall, and the temperature sensor is attached to a front part of the wind passage terminal end wall. 1. An air-cooled engine comprising:a crankcase;a crankshaft;a fan case; andan engine cooling fan, whereinwith the installation direction of the crankshaft serving as the front and rear direction, one side of the front and rear direction serving as the front side, and the other side serving as the rear side, the fan case is provided in a front part of the crankcase, and the engine cooling fan is accommodated in the fan case,the air-cooled engine comprising:a cooling wind passage;a wind passage terminal end wall;an oil splashing device; anda temperature sensor, whereinthe wind passage terminal end wall is provided in a rear end of the cooling wind passage, the oil splashing device is provided on the rear side of the wind passage terminal end wall and formed to splash engine oil in the crankcase onto the wind passage terminal end wall, and the temperature sensor is attached to a front part of the wind passage terminal end wall.2. The air-cooled engine according to claim 1 , comprising:a sensor attachment boss; anda sensor attachment bolt, whereinthe sensor attachment boss is provided in the wind passage terminal end ...

EXTERNAL COOLING FIN FOR ROTARY ENGINE

An external cooling fin of a rotary engine is mounted onto the housings of the rotary engine and includes a plurality of cooling teeth for lowering the temperature of the rotary engine, and each cooling fin includes a root and two or more outstretching fin stems, and the root is coupled to the rotary engine housings, so as to achieve a high-efficiency heat dissipation. 1. An external cooling fin of a rotary engine , installed on a rotary engine housing of the rotary engine , comprising: a rotor installed in a chamber , and plurality of cooling fins , for dissipating heat and reducing temperature of the rotary engine; wherein , the cooling fins includes several long slots and several short slots , each the long slots and the short slots being equidistant staggered arrangement to mounted onto the periphery of the rotor engine housing radially out-stretching having a tilt angle and in parallel , the short slots being mounted between each the long slots , the long slots and the short slots being formed into an A-shape or a fan-shape , structure of the long slots and the short slots of different lengths on the rotary engine , the lengths of the long slots and the short slots can be varied , structure of bottom of the long slots being mounted closer to core of the rotary engine , the short slots being mounted closer to outside of the rotary engine housing , being to increase the number of the slots put in a limited space on the surface of a rotary engine , and to in realizing raised heat dissipation , while a depth of the bottom of the cooling fins root and that of two sides of the cooling fins root are different , in achieving increased number of the slots on the rotary engine and raised heat dissipation efficiency.2. The external cooling fin of a rotary engine according to claim 1 , wherein the cooling fin are distributed with different density alignments.3. The external cooling fin of a rotary engine according to claim 2 , wherein the cooling fin are high-density ...

REVERSE FIN COOLING FAN

An engine assembly includes a crankcase, shaft, blower housing, and cooling fan. The shaft is rotatably coupled to the crankcase and defines a rotational axis. The blower housing includes an internal space. The cooling fan is disposed within the internal space, includes a plate defining an upper surface, and is positioned to rotate with the shaft about the rotational axis. The cooling fan includes a band having an inner band radius and an outer band radius. The cooling fan includes a plurality of reversed fins extending between the band and the upper surface and between a root adjacent to the rotational axis and a tip adjacent to the outer band radius, each fin offset at an angle measured in a counterclockwise direction from a plane passing through the rotational axis and the tip to a plane passing through the root and the tip when viewed from above the cooling fan. 1. An engine assembly , comprising:a crankcase;a shaft rotatably coupled to the crankcase and defining a rotational axis;a blower housing including an internal space; and a plate defining an upper surface and a lower surface;', 'a band having an inner band radius and an outer band radius; and', 'a plurality of reversed fins extending between the band and the upper surface of the plate, the plurality of reversed fins extending between a root adjacent to the rotational axis and a tip adjacent to the outer band radius, each of the reversed fins offset at an angle measured in a counterclockwise direction from a plane passing through the rotational axis and the tip to a plane passing through the root and the tip when viewed from above the cooling fan., 'a cooling fan disposed within the internal space and coupled to the shaft, wherein the cooling fan is positioned to rotate with the shaft about the rotational axis, the cooling fan comprising2. The engine assembly of claim 1 , wherein each angle is greater than zero degrees and less than or equal to ninety degrees.3. The engine assembly of claim 1 , wherein ...

Spool shuttle crossover valve in spilt-cycle engine

A split-cycle engine includes: a first cylinder housing a first piston, wherein the first piston performs an intake stroke and a compression stroke, but does not perform an exhaust stroke; a second cylinder housing a second piston, wherein the second piston performs an expansion stroke and an exhaust stroke, but does not perform an intake stroke; and a valve chamber housing a valve, the valve comprising an internal chamber that selectively fluidly couples to the first and second cylinders, wherein the valve and internal chamber move within the valve chamber and relative to the first and second cylinders.

Fan for an Air-Guiding System of an Outboard Motor

A fan is suitable for an air-guiding system of an outboard motor including an internal combustion engine and a covering hood bounding an engine interior space. The engine drives the fan, which is connected to an upright shaft journal projecting beyond an upper side of a housing of the engine. The covering hood has air flow openings, and the fan influences the air flows in the covering hood interior space. A flywheel, fixedly attached to the upright shaft journal, carries a fan wheel of the fan. The fan wheel is set in place from above, and the flywheel carries the fan wheel for conjoint rotation. Airflows enter the interior space via an inlet opening and a first conducting device, and the airflows, under the action of the fan, act upon at least parts of surfaces of the internal combustion engine and the auxiliary units to cool the internal combustion engine.

AIR FLOW GUIDE FOR AN INTERNAL COMBUSTION ENGINE

An air flow guide/diverter is disclosed for mounting to a cylinder head of an internal combustion engine. The air diverter directs cooling air to multiple locations on the cylinder head. The air diverter includes a main diverter shield having a proximal end extending from a cooling source to a distal end extending to the rear of the internal combustion engine. The air diverter includes a first arcuate member attached to the main diverter shield between the proximal end and the distal end of the main diverter shield, and a second arcuate member connected to the main diverter shield near the distal end of the main diverter shield. The air flow guide creates multiple channels of air to provide more efficient cooling with little added cost. 1. An air diverter for an internal combustion engine comprising:a main diverter shield having a proximal end extending from a cooling source to a distal end extending to a back end of the internal combustion engine;a first arcuate member attached to the main diverter shield between the proximal end and the distal end of the main diverter shield; anda second arcuate member connected to the main diverter shield near the distal end of the main diverter shield.2. The air diverter of wherein the air diverter is attached to a single cylinder of a multi-cylinder engine.3. The air diverter of wherein the first arcuate member has a width less than that of the second arcuate member.4. The air diverter of wherein the first arcuate member directs airflow generally to a center of a cylinder head.5. The air diverter of wherein the airflow is directed across push rod tubes enclosing push rods of the internal combustion engine.6. The air diverter of wherein the push rod tubes extend entirely within a cylinder head of the internal combustion engine.7. The air diverter of wherein the second arcuate member directs airflow across rear air cooling fins of a cylinder head of the internal combustion engine.8. The air diverter of wherein the second arcuate ...

VEHICLE ENGINE COOLING SYSTEM

A vehicle engine cooling system may include a high temperature radiator in which a high temperature coolant for cooling an engine by using ambient air flows, a low temperature radiator in which a low temperature coolant for cooling a water-cooled condenser by using ambient air flows, an integrated cooler configured to cool a low pressure EGR gas and air which has passed through a turbocharger, a high temperature radiator circulation line provided to allow the high temperature coolant to circulate the high temperature radiator, the engine, and the integrated cooler, a low temperature radiator circulation line provided to allow the low temperature coolant to circulate the low temperature radiator, the condenser, and the integrated cooler, and a plurality of control valves provided on the high temperature radiator circulation line and the low temperature radiator circulation line. 1. A vehicle engine cooling system comprising:a high temperature radiator in which a high temperature coolant for cooling an engine by using ambient air flows;a low temperature radiator in which a low temperature coolant for cooling a water-cooled condenser by using ambient air flows;an integrated cooler configured to cool a low pressure EGR gas and air which has passed through a turbocharger by using the coolant of the high temperature radiator and the coolant of the low temperature radiator;a high temperature radiator circulation line provided to allow the high temperature coolant to circulate the high temperature radiator, the engine, and the integrated cooler;a low temperature radiator circulation line provided to allow the low temperature coolant to circulate the low temperature radiator, the condenser, and the integrated cooler; anda plurality of control valves provided on the high temperature radiator circulation line and the low temperature radiator circulation line to control flows of the high temperature coolant and the low temperature coolant.2. The vehicle engine cooling system of ...

LATTICE STRUCTURE IN COOLING PATHWAY BY ADDITIVE MANUFACTURE

A hot gas path component of an industrial machine includes a cooling pathway with a lattice structure therein. The component and lattice structure are made by additive manufacturing. The component includes an outer surface exposed to a working fluid having a high temperature; a thermal barrier coating over the outer surface; an internal cooling circuit; and a cooling pathway in communication with the internal cooling circuit and extending towards the outer surface. A lattice structure is in the cooling pathway at the outer surface. The lattice structure is configured to support the thermal barrier coating over the cooling pathway and in response to a spall in the thermal barrier coating occurring over the cooling pathway, allow a cooling medium from the internal cooling circuit to pass therethrough. 1. A component for use in a hot gas path of an industrial machine , the component comprising:an outer surface exposed to a working fluid having a high temperature;a thermal barrier coating over the outer surface;an internal cooling circuit;a cooling pathway in communication with the internal cooling circuit and extending towards the outer surface; anda lattice structure in the cooling pathway at the outer surface, the lattice structure configured to support the thermal barrier coating over the cooling pathway, and in response to a spall in the thermal barrier coating occurring over the cooling pathway, allow a cooling medium from the internal cooling circuit to pass therethrough,wherein the component is additively manufactured such that the lattice structure is integrally formed with the outer surface and the cooling pathway.2. The component of claim 1 , wherein the lattice structure has a varying density of openness within the cooling pathway.3. The component of claim 1 , wherein the lattice structure fills only a portion of the cooling pathway.4. The component of claim 1 , wherein the lattice structure fills an entirety of the cooling pathway.5. The component of claim ...

Engine operable in horizontal and vertical shaft orientations

A small air-cooled internal combustion engine includes an aluminum engine block including a cylinder extending along a longitudinal cylinder axis and a block mounting surface, a piston configured to reciprocate within the cylinder, a crankshaft coupled to the piston and configured to rotate about a crankshaft axis in response to reciprocation of the piston, and an aluminum crankcase cover including a cover mounting surface. The block mounting surface contacts the cover mounting surface. The block mounting surface and the cover mounting surface are both positioned at an angle to the crankshaft axis and the angle is not 90 degrees.

COOLING SYSTEM FOR AIR-COOLED ENGINE

An air-cooled internal combustion engine including a crankshaft rotating about a crankshaft axis, a first cylinder having a first cylinder head, a second cylinder having a second cylinder head, and a blower assembly. The blower assembly includes a blower housing, a first fan, and a second fan. The first fan is positioned proximate the first cylinder and the second fan is positioned proximate the second cylinder. 1. An air-cooled internal combustion engine , comprising:a crankshaft rotating about a crankshaft axis;a first cylinder having a first cylinder head;a second cylinder having a second cylinder head; anda blower assembly including a blower housing, a first fan, and a second fan;wherein the first fan is positioned proximate the first cylinder and the second fan is positioned proximate the second cylinder.2. The air-cooled internal combustion engine of claim 1 , wherein the first cylinder and the second cylinder arranged in a V-twin configuration; andwherein the first fan is positioned above the first cylinder and the second fan is positioned above the second cylinder.3. The air-cooled internal combustion engine of claim 1 , wherein the first fan comprises a first fan axis of rotation at an angle relative to the crankshaft axis and the second fan comprises a second fan axis of rotation at an angle relative to the crankshaft axis.4. The air-cooled internal combustion engine of claim 1 , wherein the first fan comprises first fan blades driven by a first electric motor and the second fan comprises second fan blades driven by a second electric motor;wherein the first electric motor is controlled by a first controller and the second electric motor is controlled by a second controller.5. The air-cooled internal combustion engine of claim 1 , wherein the first fan comprises first fan blades driven by a first electric motor and the second fan comprises second fan blades driven by a second electric motor;wherein the first electric motor and the second electric motor are ...

V-TWIN ENGINE ASSEMBLY

One embodiment of the invention relates to an internal combustion engine including an engine block having a first cylinder and a second cylinder, a crankshaft configured to rotate about a crankshaft axis, a flywheel coupled to the crankshaft, a throttle body, an air filter assembly, a first electric fan coupled to a first duct, and a second electric fan coupled to a second duct. The first duct is configured to direct cooling air directly over the first cylinder. The second duct is configured to direct cooling air directly over the second cylinder. The first cylinder is at least partially within the first duct. The second cylinder is at least partially within the second duct. 1. An internal combustion engine comprising:an engine block including a first cylinder and a second cylinder;a crankshaft configured to rotate about a crankshaft axis;a flywheel coupled to the crankshaft;a throttle body configured to throttle incoming air to the first cylinder or the second cylinder;an air filter assembly configured to filter incoming air from an air intake and provide cleaned air to the throttle body;a first electric fan coupled to a first duct, the first duct configured to direct cooling air directly over the first cylinder, wherein the first cylinder is at least partially within the first duct; anda second electric fan coupled to a second duct, the second duct configured to direct cooling air directly over the second cylinder, wherein the second cylinder is at least partially within the second duct.2. The engine of claim 1 , wherein the second duct is separate from the first duct.3. The engine of claim 1 , wherein the first duct defines a first cutout and the second duct defines a second cutout claim 1 , wherein the first cylinder extends at least partially through the first cutout and the second cylinder extends at least partially through the second cutout.4. The engine of claim 3 , wherein the first duct defines a first aperture and the second duct defines a second aperture ...

Engine intake system

通用发动机

提供具有充分的冷却功能的通用发动机。通用发动机(1)具备：发动机主体(10)，其具有与气缸(11)连接的排气系统部件(13)；以及冷却机构(9)，其冷却发动机主体(10)，冷却机构(9)具备：冷却风扇(90)，其通过旋转来产生冷却风；吹出部(92)，其吹出因冷却风扇(90)的旋转而产生的冷却风；和冷却风流通开口部(33)，其配置在隔离壁(32)的上部，使设置有气缸(11)的气缸室(30)的气缸盖(15)侧与设置有罐式消音器(132)的消音器室(31)的上方侧连通，使冷却风从气缸室(30)的气缸盖(15)侧流通到消音器室(31)，隔离壁(32)将气缸室(30)与消音器室(31)隔开。

Internal combustion engine

Internal combustion engine

The inventive internal combustion engine is provided with a self-cooling system, i.e. a cooling system is substituted by a self-cooling method consisting in returning the energy which is given up by the external walls of a cylinder during cooling to said cylinder where it works. The self-cooling of a cylinder-piston group is carried out in a cooling chamber formed by the double walls of the cylinder barrels provided with cooling windows connecting said cooling chamber to the cylinder volume which is increased with respect to a combustion chamber and a specified compression rate, thereby making it possible to use a residual gas energy. The self-cooling is carried out by the transmission of a heat energy produced by the cylinder-piston group cooling to a compressed air in the cooling chamber, which subsequently participates in carrying out a useful work. A heat insulating coating prevents from loses of the heat energy of cooling.

BARREL THERMAL MOTOR WITH PISTONS AND SHAPERS COOLED BY A DIRECTED FLUID CIRCULATION, CIRCULATION OBTAINED BY INTERNAL TURBINES TO THE ENGINE

MACHINE EN BARILLET ET SPECIALEMENT MOTEUR DONT LE REFROIDISSEMENT EST ASSURE PAR L'EMPLOI DE TURBINES 5 ET 6 MONTEES AUTOUR D'UN ARBRE MEDIAN 4 ET DISTRIBUANT L'AIR EXTERIEUR A PARTIR DE LA PARTIE CENTRALE DU MOTEUR, EN PARTICULIER A L'INTERIEUR DES PISTONS ET CHEMISES. LA SUPPRESSION DES FLUIDES : EAU ET HUILE EST AINSI POSSIBLE, SURTOUT SI L'ON UTILISE COMME AGENT DE REFROIDISSEMENT UN AEROSOL. MACHINE IN BARREL AND ESPECIALLY MOTOR WHOSE COOLING IS PROVIDED BY THE USE OF 5 AND 6 TURBINES MOUNTED AROUND A MEDIAN 4 SHAFT AND DISTRIBUTING THE OUTSIDE AIR FROM THE CENTRAL PART OF THE MOTOR, IN PARTICULAR INSIDE THE PISTONS AND SHIRTS. THE REMOVAL OF FLUIDS: WATER AND OIL IS THUS POSSIBLE, ESPECIALLY IF AN AEROSOL IS USED AS A COOLING AGENT.

Combined noise suppressing and air flow guide enclosure for engines

An internal combustion engine has an enclosure mounted therearound comprising an outer enclosure having a horizontally disposed hood positioned over a top of the engine and a pair of vertically disposed sidewalls positioned on either side thereof. An inner enclosure, disposed within the outer enclosure, comprises a horizontally disposed upper wall which is spaced vertically between the top of the engine and the hood to define first and second airflow passages therewith, the second airflow passage being further defined in part by the sidewalls. The inner enclosure further comprises a vertically disposed forward wall positioned adjacent to the front of the engine. An airflow guide means is secured internally on each of the sidewalls to define a passage therebetween which communicates with the second airflow passage defined about the engine. A first outlet means is defined rearwardly on each of the sidewalls to communicate airflow from the first airflow passage to ambient whereas a second outlet is defined at the bottom of the enclosure and beneath the engine for communicating the second airflow passage to ambient. The hood, sidewalls and upper and forward walls of the inner enclosure each have a layer of sound absorbing material secured thereon.

Air-cooled engine

Manually operated working machine

(57)【要約】 【課題】手で操縦される作業機の構成をできるだけ簡潔 にし、清浄な燃焼空気を簡単に案内できるようにする。 【解決手段】燃焼空気ダクト（9）を、ケース底部（7） と、ケース底部（7）を二重底として部分的に覆ってい るファンケース（6）のダクト壁（8）とにより画成す る。

Intake temperature drop system of engine cylinder

본 발명은 에어컨을 가동한 상태로 주행할때에 흡기 온도를 일정치 하강시켜 엔진이 과열되는 것을 방지시킴과 동시에, 기화불량으로 인해 발생되는 노킹(Knocking)현상을 방지시킨 엔진 실린더의 흡기온도 하강장치에 관한 것으로, 흡입관로의 일측에 에어컨의 송풍구와 연결된 냉기 공급관을 부설시켜, 에어컨 가동시 냉각 수온 및 흡기 온도가 일정치 이상이 되면, ECU(Electronic Control Unit)에서 이를 감지하여 전술한 냉기 공급관내에 설치된 냉기 조절밸브를 열어줌으로써 에어컨에 의해 냉각된 공기가 흡입 공기와 혼합된 후 교축 밸브를 통해 일정량 실린더에 공급되어 엔진의 과열을 방지시키도록 한 엔진실린더의 흡기온도 하강장치에 관한 것이다. The present invention prevents the engine from overheating by lowering the intake air temperature by a certain value when driving with the air conditioner running, and at the same time lowering the intake air temperature of the engine cylinder which prevents knocking caused by poor vaporization. The device relates to a cold air supply pipe connected to an air outlet of an air conditioner on one side of a suction line, and when the cooling water temperature and the intake temperature are higher than a predetermined value when the air conditioner is operated, the ECU (Electronic Control Unit) detects this and supplies the cold air. An air intake temperature lowering device of an engine cylinder for preventing the engine from overheating by opening a cold air control valve installed in a pipe, the air cooled by the air conditioner is mixed with the intake air, and then supplied to a cylinder through a throttling valve.

Portable handheld work apparatus having an internal combustion engine

In an internal combustion engine ( 2 ) of a portable handheld work apparatus, the cylinder ( 3 ) is provided with cooling ribs ( 4, 4′ ). A cooling airflow is generated by the fan wheel ( 13 ) and is guided over the cooling ribs. A carburetor ( 9 ) is temperaturized as required by the heated cooling air. A control of the cooling airflow to the carburetor ( 9 ) takes place in that an opening ( 11 ), which passes the heated cooling air, is selectively closed or opened via a closure element ( 12 ). In order to obtain improved cooling of the cylinder during summer operation as well as during winter operation, the closure element ( 12 ) is provided with at least one air guide wall which extends essentially transversely to the cooling airflow and causes this cooling air to be partially backed up and deflected.

Engine working tool with improved carburetor pre-heating

Motorarbeitsgerät (100) wie eine Kettensäge, ein Handschleifgerät, eine Handkreissäge, ein Rasenmäher, ein Rasentrimmer oder ein sonstiges Handwerkzeug oder Gerät zur Garten- und Landschaftspflege, aufweisend einen Verbrennungsmotor (10) mit wenigstens einem Zylinder (11) und wenigstens einem Vergaser (12), der in einem Vergaserraum (13) angeordnet ist, der durch eine Zwischenwand (14) von einem Motorraum (15) getrennt ist, wobei ein Gehäuse (16) vorgesehen ist, das den Motorraum (15) wenigstens teilweise umschließt, sodass sich ein oberer Teil (11a) des Zylinders (11) in Richtung zum Gehäuse (16) hin erstreckt, wobei ferner ein Lüfterrad vorgesehen ist, durch das Luft aus dem Motorraum (15) durch eine Warmluftöffnung (17) in der Zwischenwand (14) in den Vergaserraum (13) einbringbar ist, dadurch gekennzeichnet, dass die Warmluftöffnung (17) in dem Bereich der Zwischenwand (14) angeordnet ist, der angrenzend an den oberen Teil des Zylinders (11) angeordnet ist. Power tool (100) such as a chain saw, a hand grinder, a hand circular saw, a lawn mower, a lawn trimmer or other hand tool or device for gardening and landscaping, having an internal combustion engine (10) with at least one cylinder (11) and at least one carburetor (12) ), which is arranged in a carburetor chamber (13) which is separated from an engine compartment (15) by a partition (14), a housing (16) being provided which at least partially encloses the engine compartment (15) so that a upper part (11a) of the cylinder (11) in the direction of the housing (16), a fan wheel is also provided through which air from the engine compartment (15) through a warm air opening (17) in the partition (14) into the The carburetor chamber (13) can be introduced, characterized in that the warm air opening (17) is arranged in the area of the partition (14) which is arranged adjacent to the upper part of the cylinder (11).

Combustion engine with gasifier cooling

Es wird ein Verbrennungsmotor angegeben, mit einem Zylinder (1), in dem ein Kolben axial hin und her beweglich ist, um eine Motorwelle (2) drehend anzutreiben, einer Vergasereinrichtung (3) zum Erzeugen eines Luft-Kraftstoff-Gemischs für einen Verbrennungsvorgang in dem Zylinder (1) und mit einer Lüftereinrichtung (5) zum Erzeugen eines Kühlluftstroms (11). Weiterhin ist eine Kühlluftführung (7) zum Führen des von der Lüftereinrichtung (5) erzeugten Kühlluftstroms (11) vorgesehen, sowie ein Strömungsteiler (12) zum Aufteilen des Kühlluftstroms (11) in einen Zylinder-Kühlluftstrom (13) und in einen Vergaser-Kühlluftstrom (14). Eine Zylinder-Kühlluftstromführung (15) dient zum Führen des Zylinder-Kühlluftstroms (13) zu einer Außenwand des Zylinders (1), während eine Vergaser-Kühlluftstromführung (16) zum Führen des Vergaser-Kühlluftstroms (14) zu einer Außenwand der Vergasereinrichtung (3) dient. The invention relates to an internal combustion engine, with a cylinder (1) in which a piston can be moved axially back and forth to drive a motor shaft (2) in rotation, a carburetor device (3) for generating an air / fuel mixture for a combustion process in the cylinder (1) and with a fan device (5) for generating a cooling air flow (11). Furthermore, a cooling air guide (7) for guiding the cooling air flow (11) generated by the fan device (5) is provided, and a flow divider (12) for dividing the cooling air flow (11) into a cylinder cooling air flow (13) and into a carburetor cooling air flow (14). A cylinder cooling air flow guide (15) serves to guide the cylinder cooling air flow (13) to an outer wall of the cylinder (1), while a carburetor cooling air flow guide (16) to guide the carburetor cooling air flow (14) to an outer wall of the carburetor device (3 ) serves.

Motorised work device with improved carburettor pre-heating

The tool (100) has a combustion motor (10) provided with a cylinder (11) and a gasifier (12), which is arranged in a gasifier space (13) that is separated from a motor compartment (15) by an intermediate wall (14). A housing (16) of the tool partially encloses the compartment such that an upper part (11a) of the cylinder extends toward the housing. A fan wheel guides air from the compartment via a warm air aperture (17) in the intermediate wall into the gasifier space, where the aperture is arranged in a region of the wall adjacent to the upper part.

Forced air-cooled engine for motorcycles

Cooling system especially for air-cooled engines

Cooling system especially for air-cooled engines with a cooling fan, the fan impeller (24) of which is fixed on the driven shaft (17) of a fluid coupling arranged in the stator. The inside of the fluid coupling can be connected to a pressure medium source. In order to prevent operation of the fan before a required operating temperature is attained, a driver (23) with a brake disc (24) is fixed on the driven shaft (17) of the fluid coupling, which disc extends between two brake linings (30, 34), each of which is connected to a piston (29, 31) of a brake cylinder (43) arranged in the stator and to a return spring (35), the brake cylinder (43) being connected to the hydraulic oil feed line (42) and being connectable to a supply duct (45) of the fluid coupling. <IMAGE>

BLOWER DEVICE

Engine cooling structure

CURRENT CONSUMER MOBILE DEVICE

Patent FR2687189B1

Cooling device for internal combustion engine for motorcycle

Cooling the cylinder head of cylinders in internal combustion engines with valves in the cylinder head

Air cooling for internal combustion engine

Un bloc-moteur oscillant (4) présente un moteur (5) à combustion interne du type à refroidissement par circulation d'air forcée, comprenant un bloc-cylindre (20) et une culasse cylindrique (21), ainsi qu'une transmission (6) dirigée vers l'arrière à partir dudit moteur (5). Un orifice d'échappement (37) correspondant à la culasse (21) est pratiqué sur un carénage (24). Un orifice d'échappement (30) du cylindre est ouvert vers le haut et obliquement vers la gauche. Un conduit (34) entretenant la température d'un carburateur (36) est raccordé audit orifice (30) et débouche en vis-à-vis du carburateur (36). L'air, réchauffé par échange thermique sur des ailettes de refroidissement (26) du cylindre (20), est pulsé vers le carburateur (36) et réchauffe ainsi ce dernier.

Device eliminating radiators for cooling the cylinders and the engine of small motor cars

MACHINE TOOL WHICH, DRIVEN BY MOTOR AND MANUALLY GUIDED, INCLUDES A FAN HOUSING MADE IN ONE PIECE

Une machine-outil, telle qu'une scie à moteur à chaîne, tronçonneuse à meule ou analogue, est entraînée par un moteur thermique 8 refroidi par un ventilateur 9 dont le carter comporte une grille de ventilation extérieure 11 et une ouverture d'aspiration intérieure 13 entre lesquelles s'étend un tronçon de conduit 17 en forme d'entonnoir. Afin que le carter de ventilateur réalisé en une pièce présente des fenêtres de dimensions uniformes et que la vitesse d'écoulement à la surface de la grille soit faible, il est prévu, dans la région de chevauchement de la grille 11 et du tronçon de conduit 17, des barrettes sensiblement radiales 31, alors que des barrettes transversales 32 ont leur extrémité 34 côté tronçon de conduit 17 chanfreinée en direction de l'ouverture d'aspiration 13.

CONTROL METHOD FOR AN AIR COOLED INTERNAL COMBUSTION ENGINE

Procédé de commande d'un moteur à combustion interne automobile refroidi par air commandé par une unité de commande électronique munie d'un moyen de détermination de la température de l'air admis, comprenant les étapes suivantes : • on active l'unité de commande électronique, • on initialise des valeurs mémorisées de la température du moteur à combustion interne et du coefficient de filtrage filtré à une valeur nulle, • au cours d'une itération, - on détermine si le moteur à combustion interne est en fonctionnement, on détermine un coefficient de filtrage et une consigne de température fonction de l'état de fonctionnement du moteur à combustion interne, - on détermine un coefficient de filtrage filtré par filtrage au premier ordre du coefficient de filtrage et la valeur mémorisée du coefficient de filtrage filtré, - on détermine une température du moteur à combustion interne en fonction du coefficient de filtrage filtré, de la consigne de température et de la valeur mémorisée de la température du moteur à combustion interne, - on détermine si le moteur à combustion interne est arrêté et si la différence entre la température du moteur et la température de l'air admis est inférieure à un seuil prédéterminé, • si tel n'est pas le cas, on mémorise le coefficient de filtrage filtré et la température du moteur à combustion interne, puis le procédé reprend à la détermination du fonctionnement du moteur à combustion interne au cours d'une nouvelle itération, • si tel est le cas, on émet un signal d'autorisation d'extinction de l'unité de commande électronique. Method for controlling an air-cooled automobile internal combustion engine controlled by an electronic control unit provided with a means for determining the temperature of the intake air, comprising the following steps: • the control unit is activated electronic, • initialized stored values of the temperature of the internal combustion engine and of the filtered filter ...

Patent FR2335815B1

Cooling devices for internal combustion or internal combustion engines

DEVICE FOR COOLING A MOTOR BLOCK, IN PARTICULAR FOR A SCOOTER

L'INVENTION CONCERNE UN DISPOSITIF DE REFROIDISSEMENT D'UN BLOC MOTEUR, NOTAMMENT POUR UN SCOOTER. CE DISPOSITIF PERMET DE REFROIDIR TANT LE CARTER DE COURROIE 12 D'UN MOTEUR 4 QUE CE MOTEUR PROPREMENT DIT, ET AUSSI BIEN L'INTERIEUR QUE L'EXTERIEUR DUDIT CARTER 12 SONT REFROIDIS PAR DE L'AIR EXTERIEUR ASPIRE PAR DES VENTILATEURS RESPECTIFS 19, 20. L'AIR REFROIDISSANT L'EXTERIEUR DU CARTER 12 EST EGALEMENT UTILISE POUR REFROIDIR LE RESTE DU MOTEUR 4, PUIS SORT DE CE MOTEUR 4 PAR UN COTE OPPOSE A L'ORIFICE 17A PAR LEQUEL CET AIR A ETE PREALABLEMENT ASPIRE. DE CE FAIT, LE FLUX D'AIR PARCOURANT LE MOTEUR 4 N'ENTRAVE PAS LA ROTATION DES VENTILATIONS 19, 20 ET NE GENE PAS LE PROCESSUS DE REFROIDISSEMENT.

COOLING AIR FAN FOR THERMAL ENGINES, EQUIPPED WITH A COMBUSTING AIR DUCT BECOMING A PARTIAL AIR STREAM.

Le ventilateur à air de refroidissement du moteur thermique d'une machine-outil guidée manuellement, amène par l'intermédiaire d'un conduit de refroidissement (1) de l'air de refroidissement au moteur (10) et, du côté refoulement du ventilateur, un courant d'air partiel est dévié par l'intermédiaire d'un conduit d'air comburant (20) et amené au moteur. Le conduit d'air comburant s'étend en partie près du conduit de refroidissement (1) et présente une ouverture d'entrée pour le transfert d'air hors du conduit de refroidissement (1). Pour permettre le transfert de fortes quantités d'air sans perturber le courant d'air de refroidissement ni entraîner des particules de saleté il est prévu de préférence plusieurs corps creux profilés (30) qui pénètrent dans le conduit de refroidissement (1) et présenent du côté arrière chacun une ouverture d'entrée précitée. The cooling air fan of the heat engine of a manually guided machine tool supplies cooling air via a cooling duct (1) to the motor (10) and, to the discharge side of the fan , a partial air stream is diverted through a combustion air duct (20) and supplied to the engine. The combustion air duct partly extends near the cooling duct (1) and has an inlet opening for the transfer of air out of the cooling duct (1). To allow the transfer of large quantities of air without disturbing the cooling air flow or causing dirt particles, there are preferably several profiled hollow bodies (30) which enter the cooling duct (1) and present rear side each one aforementioned entry opening.

COOLING DEVICE FOR A VEHICLE PROPELLING MEANS

L'invention concerne un agencement d'un dispositif (1) de refroidissement dans un compartiment d'un véhicule destiné à recevoir un moyen (2) de propulsion, le dispositif de refroidissement comportant un moyen de génération d'un flux d'air ainsi qu'un moyen (3) de guidage d'air disposé autour dudit moyen (2) de propulsion afin de former avec ce dernier au moins un canal d'écoulement d'air d'épaisseur prédéterminée, le dispositif (1) de refroidissement comportant un convergent (4) disposé entre une ouverture de sortie d'air dudit moyen de génération d'un flux d'air et une ouverture (5) d'entrée dudit moyen de guidage d'air. L'invention concerne aussi un véhicule, notamment du type d'une automobile, comportant un tel agencement. The invention relates to an arrangement of a cooling device (1) in a compartment of a vehicle intended to receive a propulsion means (2), the cooling device comprising means for generating an air flow thus that an air guide means (3) disposed around said propulsion means (2) in order to form with the latter at least one air flow channel of predetermined thickness, the cooling device (1) comprising a convergent (4) disposed between an air outlet opening of said means for generating an air flow and an inlet opening (5) of said air guide means. The invention also relates to a vehicle, in particular of the type of an automobile, comprising such an arrangement.

BLOWER DEVICE

Cooling device for air-cooled internal combustion engines

Improvements in two-stroke engines

Arrangement in air-cooled internal combustion engine

Arrangement in an internal combustion engine, said arrangement comprises a fan for supplying combustion air to a carburetor. The fan comprises a fan housing (11) and a fan wheel (12) provided with a number of wings (13) extending in substantially radial direction from the axle (15) of rotation for the fan wheel (12). The arrangement further comprises an air inlet (14) for combustion air to the carburetor arranged at the outer edge of the wings (13) on the fan wheel (12). The outer edge of the wings (13) is arranged in a direction substantially parallel to the axle (15) of rotation for the fan wheel 10 (12). The side of the air inlet (14) closest to the outer edge of the wings (13) on the fan wheel (12) is arranged at an angle of 10° to 60° in relation to the outer edge of the wings (13) on the fan wheel (12) to reduce the amount of sound generated.

Snowmobile

A cooling system for an internal portion of an engine assembly. The cooling system includes a fan assembly. The fan assembly rotates with a flywheel mounted to a crankshaft.

Air-cooled engine air ducting

本发明公开了一种风冷式发动机导风系统，包括发动机，在所述发动机的一侧设置有导风罩（1），在所述导风罩（1）中心设置有容纳离心风扇的空腔（2），在所述导风罩（1）上设置有至少两个气流通道，所述两个气流通道分别对应发动机的上部和下部。本发明具有结构设计巧妙、使用可靠、成本低廉的优点，采用它能够对冷却空气进行分流引导，对发动机的不同位置进行散热，提高了发动机的散热效果，降低了发动机的热负荷，保证了用户体验和发动机寿命。

Cooling system for small two-stroke engine

本发明提供一种用于小型二冲程发动机的冷却系统。该冷却系统主要包括导流罩总成，螺旋桨，散热片。当发动机起动时，随着发动机转速和螺旋桨转速的增加，将会在螺旋桨的发动机侧产生较大的低压区，使得导流罩总成进气口和出气口产生压差，从而增加了通过发动机冷却系统的冷却空气流量，提升小型固定翼无人机发射过程中发动机的冷却能力。该冷却系统结构简单，拆装方便，解决采用螺旋桨的小型固定翼无人机发射之前的过热和无人机飞行过程及下降时的过冷问题，使发动机零部件工作在适宜的温度，提高发动机可靠性。

Internal combustion engine using lubricating oil for effective and uniform cooling

An internal combustion engine which employs lubricating oil as part of the cooling system. A sleeve forms the cylinder wall and is completely surrounded by a jacket space formed by a wall exposed to the atmosphere, including air circulated by the engine's fan. An oil pump maintains the jacket space substantially full of oil which transfers heat from the sleeve to the outer wall. On its return, the oil passes through an intermeshed heat exchange which has a set of horizontal shelves formed on the inside of the crankcase wall and an opposing and intermeshed set of horizontal shelves located inside the crankcase. A series of fins are formed on the outside of engine walls opposite the oil jacket and the intermeshed heat exchanger.

Engine

[과제] 공냉(空冷)식 엔진에 있어서, 실린더 헤드의 냉각 효율을 향상시킨다. [해결 수단] 크랭크축의 일단에 냉각 팬을 마련하고, 이 냉각 팬으로부터 송풍된 냉각풍을 실린더 헤드(4)로 유도하여 냉각시키는 구성에 있어서, 냉각 팬의 상방에 흡기 매니폴드(manifold)(8)를 배치하고, 이 흡기 매니폴드(8)의 좌우 중앙에 에어 클리너로부터 공기를 흡입하기 위한 덕트(51)를 마련하여, 이 덕트(51)의 양측으로부터 실린더 헤드(4)에 배치된 흡기 밸브, 배기 밸브, 연료 분사 노즐에 냉각풍을 송풍하는 구성으로서, 상기 덕트(51)의 좌우 일측에 차폐판(55)을 마련하였다. [Problem] In an air-cooled engine, the cooling efficiency of a cylinder head is improved. [Solution] In a configuration in which a cooling fan is provided at one end of the crankshaft and the cooling air blown from the cooling fan is guided to the cylinder head 4 and cooled, an intake manifold 8 above the cooling fan. ), A duct 51 for sucking air from the air cleaner in the left and right centers of the intake manifold 8, and an intake valve disposed in the cylinder head 4 from both sides of the duct 51. In order to blow cooling air into the exhaust valve and the fuel injection nozzle, the shielding plate 55 was provided on the left and right sides of the duct 51.