摘要:
A hollow-cylindrical heat conduction portion (44) is formed on a throttle body (42) in such a way as to protrude outwardly therefrom in the radial direction. The throttle body (42) and the heat conduction portion (44) are integrally formed using metal material such as aluminum having excellent heat conductivity or resin material containing such a metal material. A vent hole (31) communicating the interior with the exterior of a head cover (3) is formed in the head cover (3). Through the vent hole (31) there is inserted the heat conduction portion (44), and the clearance between an outer-peripheral wall thereof and an inner wall of the vent hole (31) is sealed by means of a seal member.
摘要:
A fuel supply device for an internal combustion engine is provided, which includes a plurality of fuel filters and is capable of reducing: the number of replacement parts; and clogging of filter elements by deposition of wax. A fuel supply path 100 for supplying fuel in a fuel tank 2 to injectors 8 includes: a first fuel filter 3 that is disposed upstream of a feed pump 4 and that has a first filter element 32; and a second fuel filter 5 that is disposed downstream of the feed pump 4 and that has a second filter element 52. A fuel return pipe 108 and a fuel return pipe 107 are provided so that fuel discharged from the feed pump 4 is returned, via the second fuel filter 5, to a returned fuel heater 34 disposed upstream of the first filter element 32 in the first fuel filter 3.
摘要:
[PROBLEMS] To increase the cooling efficiency of a cylinder head in an air-cooled engine. [MEANS FOR SOLVING PROBLEMS] In this engine, a cooling fan is installed at one end of a crankshaft, and cooling air from the cooling fan is led to the cylinder head for cooling. An intake manifold (8) is disposed above the cooling fan, and a duct (51) for sucking air from an air cleaner is formed at the lateral center of the intake manifold (8) to supply the cooling air from both sides of the duct (51) to an intake valve, an exhaust valve, and a fuel injection nozzle disposed in the cylinder head (4). A shield plate (55) is formed onone of the right and left sides of the duct (51).
摘要:
A cooling system for an internal combustion engine according to the principles of the present disclosure includes an engine block, a compression device, a cooling circuit, a first pump, and a fuel delivery device. The engine block at least partially defines a combustion chamber and a cooling passage. The cooling passage extends through the engine block. The compression device is received in the engine block to partially define the combustion chamber. The compression device is movable within and relative to the engine block. The cooling circuit is in fluid communication with the cooling passage. The first pump is in fluid communication with the cooling circuit and is configured to circulate a fuel through the cooling circuit and the cooling passage. The fuel delivery device is in fluid communication with the cooling circuit and is configured to deliver the fuel to the combustion chamber.
摘要:
The internal combustion engines (M) of the invention are provided with a cooling water circuit, associated with a water radiator and with a lubricant oil circuit. The heat exchanger (HE) comprises an inlet and an outlet of water connected, in series, to an outlet of the water radiator, by means of a cooled water conduit and of the cooling water circuit, and to an inlet of the water radiator, by means of a return conduit and a hot water conduit; a fuel inlet nozzle and a fuel outlet nozzle, selectively connected to the fuel supply to the engine (M); and an inlet and an outlet of lubricant oil, connected to the lubricant oil circuit by means of respective oil conduits.
摘要:
Um ein 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 Lüfterrad (16) vorgesehen ist, durch das Luft aus dem Motorraum (15) durch eine Motorraumöffnung (17) in der Zwischenwand (14) in den Vergaserraum (13) einbringbar ist, zu schaffen, insbesondere ein Element zum Umschalten des Sommer-Winter-Betriebes weiter zu vereinfachen, wird vorgeschlagen, dass zusätzlich zur Motorraumöffnung (17) eine Warmluftöffnung (18) in der Zwischenwand (14) vorgesehen ist, durch die über den Zylinder (11) erwärmte Luft in den Vergaserraum (13) einbringbar ist, und wobei ein Stellelement (19) vorgesehen ist, das in eine Sommerstellung bringbar ist, in der die Motorraumöffnung (17) geöffnet und die Warmluftöffnung (18) geschlossen ist und das in eine Winterstellung bringbar ist, in der die Motorraumöffnung (17) geschlossen und die Warmluftöffnung (18) geöffnet ist.
摘要:
[PROBLEMS] To increase the cooling efficiency of a cylinder head in an air-cooled engine. [MEANS FOR SOLVING PROBLEMS] In this engine, a cooling fan is installed at one end of a crankshaft, and cooling air from the cooling fan is led to the cylinder head for cooling. An intake manifold (8) is disposed above the cooling fan, and a duct (51) for sucking air from an air cleaner is formed at the lateral center of the intake manifold (8) to supply the cooling air from both sides of the duct (51) to an intake valve, an exhaust valve, and a fuel injection nozzle disposed in the cylinder head (4). A shield plate (55) is formed onone of the right and left sides of the duct (51).
摘要:
A cooling apparatus 10 including an elongated body portion 12 having a fluid inlet 16, a fluid outlet 18 and a fluid channel 14 extending between the fluid inlet 16 and the fluid outlet 18, wherein the fluid channel 14 includes a generally "G," "C" or "( )" shaped cross-section.
摘要:
A hollow-cylindrical heat conduction portion (44) is formed on a throttle body (42) in such a way as to protrude outwardly therefrom in the radial direction. The throttle body (42) and the heat conduction portion (44) are integrally formed using metal material such as aluminum having excellent heat conductivity or resin material containing such a metal material. A vent hole (31) communicating the interior with the exterior of a head cover (3) is formed in the head cover (3). Through the vent hole (31) there is inserted the heat conduction portion (44), and the clearance between an outer-peripheral wall thereof and an inner wall of the vent hole (31) is sealed by means of a seal member.