摘要:
A fuel supply assembly for a gasoline internal combustion engine in which the amount of fuel supplied is controlled by an electromagnetic injection valve which in turn is controlled by an electronic controller subjected to operating parameters. The assembly comprises a fuel metering device and a vane pump in which is supplied a branch stream of air tapped from an inlet duct upstream of the throttle valve. The fuel is introduced into the pump chamber downstream of the air and both the fuel and air are supplied to the pump chamber substantially tangentially to be mixed for the first time in the pump chamber.
摘要:
A fuel injection apparatus provides a rich fuel-air mixture which is injected into the intake manifold of an internal combustion engine in the vicinity of the intake ports of the cylinders. The quantity of fuel provided to the engine is regulated in accordance with the negative pressure in the engine air intake passage.
摘要:
A two-cycle combustion engine with a two-staged piston addresses a blow-off phenomenon of an air-fuel mixture. A cylinder block has a two-staged cylinder bore with a reduced diameter bore portion and a large diameter bore portion, and a two-staged piston having a reduced diameter piston portion and a large diameter piston portion. An annular auxiliary chamber is defined between the cylinder bore and the two-staged piston. An air passage introduces air mixed with oil into a crank chamber. An air-fuel mixture passage introduces the air-fuel mixture into the auxiliary chamber. A scavenge air passage supplies the air within the crank chamber into a combustion chamber, and an injection passage injects the air-fuel mixture within the auxiliary chamber into the combustion chamber from an inner peripheral surface of the cylinder block in a direction oriented substantially diagonally upwardly.
摘要:
An engine capable of use with multiple different types of fuels including gasoline and alcohol based flues and heavy fuels such as diesel fuel, JP5, JP8, Jet A and kerosene based fuels. The engine includes a main cylinder having a compression chamber at one end and a piston that is movable along the length of the cylinder and which connects to a crankshaft for the engine. A fuel delivery system delivers a combustible mixture of fuel and air through a fuel delivery valve into the combustion chamber at a sonic velocity of flow such that the fuel is substantially atomized into the air of the combustible mixture delivered to the combustion chamber. The combustible mixture is ignited by an igniter within the combustion chamber to urge the piston along the cylinder for driving the crankshaft of the engine.
摘要:
An engine capable of use with multiple different types of fuels including gasoline and alcohol based flues and heavy fuels such as diesel fuel, JP5, JP8, Jet A and kerosene based fuels. The engine includes a main cylinder having a compression chamber at one end and a piston that is movable along the length of the cylinder and which connects to a crankshaft for the engine. A fuel delivery system delivers a combustible mixture of fuel and air through a fuel delivery valve into the combustion chamber at a sonic velocity of flow such that the fuel is substantially atomized into the air of the combustible mixture delivered to the combustion chamber. The combustible mixture is ignited by an igniter within the combustion chamber to urge the piston along the cylinder for driving the crankshaft of the engine.
摘要:
An apparatus for intermittently atomizing a fluid with the assistance of a gas or a mixture of gases. The apparatus includes a cylinder having a cylinder head with a valve seat and at least one flow passage, a piston driven within the cylinder by a rotating crankshaft, an injection valve having a valve head and a spring element urging the valve head into engagement with the valve seat to close the flow passage. The injection valve generally includes an actuating surface that cooperates with the piston to mechanically open the valve when the piston reaches the end of its compression stroke. As a result, the present invention delays the start of valve opening until the piston maximizes the atomizing pressure within the cylinder thereby advantageously maintaining small fluid drop sizes. Additionally, flow passages formed within or proximate to the valve head provide a corridor through which the cloud of drops enter the combustion chamber. Altering the size, shape and orientation of the flow passages allows the shape and direction of the cloud of drops protruding from the flow passage to be varied for different applications. Finally, the injection valve preferably includes mechanical guidance at both its axial ends to reduce edge stresses and increase the durability of the valve.
摘要:
An engine capable of use with multiple different types of fuels including gasoline and alcohol based flues and heavy fuels such as diesel fuel, JP5, JP8, Jet A and kerosene based fuels. The engine includes a main cylinder having a compression chamber at one end and a piston that is movable along the length of the cylinder and which connects to a crankshaft for the engine. A fuel delivery system delivers a combustible mixture of fuel and air through a fuel delivery valve into the combustion chamber at a sonic velocity of flow such that the fuel is substantially atomized into the air of the combustible mixture delivered to the combustion chamber. The combustible mixture is ignited by an igniter within the combustion chamber to urge the piston along the cylinder for driving the crankshaft of the engine.
摘要:
A two-stroke internal combustion engine having at least one cylinder with a combustion chamber defined between the cylinder head and a reciprocating piston, and a carburetor which delivers a rich fuel and air mixture to a compressor with a reciprocating piston driven by the engine to compress the mixture until the mixture is under sufficient pressure to open a differential pressure injection valve and thereby inject the mixture directly into the engine combustion chamber. The mixture is ignited by a spark plug to drive the engine piston through its power stroke and rotate its associated crankshaft which is connected to a crankshaft of the compressor to reciprocate its piston and thereby compress the fuel and air mixture and inject it into the cylinder in timed relation with the engine piston.
摘要:
The present invention is an air-blast fuel injection two-stroke engine comprising at least one cylinder (1) in which moves a piston (2) defining a combustion chamber (14) and a pump crankcase (5) forming a continuation of the combustion chamber and separated therefrom by the piston (2), at least one main air inlet (7) in the pump crankcase that can be equipped with a first nonreturn device (6), a device for introducing the fuel mixture at a given pressure, comprising a mechanism (20) for opening and for closing a port (12) for introducing the fuel mixture into the combustion chamber (14), a container (15) connected to the introduction port (12) and containing the fuel mixture under pressure. The engine further comprises a mechanism (30-34) for sucking and introducing the fuel mixture under pressure into the container.