摘要:
An object of the invention is to provide an engine device which can simplify a supply air cooling structure of an engine (25) as well as simplifying a support structure of a first supercharger (56) and a second supercharger (58). In an engine device in which the first supercharger (56) and the second supercharger (58) are arranged in series in an exhaust gas discharge channel of the engine (25), the first supercharger (56) and the second supercharger (58) are arranged in one side surface of the engine (25), the second supercharger (58) is arranged so as to be close to the one side surface of the engine (25), and the first supercharger (56) is arranged so as to be away from the one side surface of the engine (25).
摘要:
It is an object to provide an engine device in which in the engine device, which employs various types of fuels, plural fuel pipes can compactly be disposed without being thermally affected by exhaust gas. In the engine device (21) of the invention of the present invention, a gas fuel pipe (41) that supplies gas fuel to a gas injector (98), a fuel oil pipe (42) that supplies liquid fuel to a main fuel injection valve (79) are disposed to be divided on both sides of a row of head covers (40) arranged in a line. In addition, in the engine device (21), an intake manifold (67) that supplies air taken in by a main combustion chamber toward an intake valve (80) extends in parallel to the row of head covers (40) in a cylinder block (25), and the fuel gas pipe (41) and the intake manifold (67) are arranged on the same side of the row of head covers (40).
摘要:
Dieses Abgasrückführungssystem ist für eine Brennkraftmaschine der Hubkolbenbauart mit einer Abgasturboladereinrichtung, umfassend eine Abgasturbine und einen Lader, geeignet, welche Brennkraftmaschine ein einen oder mehrere Zylinder mit Hubkolben aufnehmendes Maschinengehäuse besitzt, das mit einer Sauganlage und einer Abgasauslasseinrichtung versehen ist, die unter Vermittlung einer Abgasleitung an die Abgasturbine angeschlossen ist, wobei die Abgasleitung über das Abgasrückführungssystem zumindest einen Teil des Abgasstroms der Sauganlage zuführt. Zur Optimierung des Abgasrückführungssystem verfügt es über eine mit der Abgasleitung verbundene Rohrabzweigung, die unter Zwischenschaltung eines Steuerelements an eine Abgasrückführungsleitung angeschlossen ist, welche Abgasrückführungsleitung sich einerseits mit einem ersten Zuführungsleitungsabschnitt außerhalb und andererseits mit einem zweiten Zuführungsleitungsabschnitt in einem Innenraum eines Sauganlagenbehälters der Sauganlage erstreckt, und dass mittels des zweiten Zuführungsleitungsabschnitts ein Abgasstrom in den Sauganlagenbehälter zur gezielten Vermischung von Abgasen mit dem in besagtem Sauganlagenbehälter enthalten Luftvolumen gefördert wird.
摘要:
A valve (1,1') for a marine propulsion unit comprises a body (2) having an internal passage (3) through the valve body (2). An aperture (5) in the valve body communicates with the internal passage (3). A piston (4,4') is moveably mounted within the internal passage. The valve is configured such that, upon immersion or expected immersion of part (such as an air intake) of an associated propulsion unit in water or tilting of the associated propulsion unit beyond a predefined angle, the piston moves to a first position within the internal passage in which it seals the aperture. If for example the air intake of a marine propulsion unit of a vessel is connected to the aperture (3), the effect of the piston sealing the aperture (5) is to isolate the air intake from the atmosphere. Thus if the vessel sinks or capsizes, the valve closes the air intake of the propulsion unit and so prevents entry of water into the propulsion unit.
摘要:
An engine capable of use with multiple different types of fuels including gasoline, alcohol based fuels, and heavy fuels such as diesel, JP5, JP8, Jet A, and kerosene based fuels. The engine (10) includes a main cylinder (25) having a compression chamber (26) at one end and a piston (31) that is movable along the length of the cylinder (25) and which connects to a crankshaft (23) for the engine (10). A fuel delivery system (72) delivers a combustible mixture of fuel and air through a fuel delivery valve (73) into the combustion chamber (26) 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 (26). The combustible mixture is ignited by an igniter (160) within the combustion chamber (26) to urge the piston (31) along the cylinder for driving the crankshaft (23) of the engine (10).
摘要:
The present invention is a system for air supply to the engine of a motor float comprising a bottom part and an upper part of the body defining the inner space of the float, in which a combustion engine is arranged, wherein the upper part of the body is in its front part provided with an air supply, characterized in that the combustion engine is arranged in the engine compartment and separated from the rest of the inner space of the float by means of a partition provided with a suction opening in its front part, wherein to provide the circulation of air in the inner space of the float a sealing rib extends from the front part of the partition towards the tip of the float, separating the air supply and suction opening from one another, wherein at least one rear pump for sucking the leaking water is arranged in the rear part of the inner space of the float. The main object of the invention is thus to use the interspace of the float to provide separation of water and air, when eventual separated water may be sucked away by a pump operating on any principle (electric, vacuum, etc.).
摘要:
An engine capable of use with multiple different types of fuels including gasoline, alcohol based fuels, and heavy fuels such as diesel, JP5, JP8, Jet A, and kerosene based fuels. The engine (10) includes a main cylinder (25) having a compression chamber (26) at one end and a piston (31) that is movable along the length of the cylinder (25) and which connects to a crankshaft (23) for the engine (10). A fuel delivery system (72) delivers a combustible mixture of fuel and air through a fuel delivery valve (73) into the combustion chamber (26) 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 (26). The combustible mixture is ignited by an igniter (160) within the combustion chamber (26) to urge the piston (31) along the cylinder for driving the crankshaft (23) of the engine (10).
摘要:
A multi-cylinder reciprocating piston internal combustion engine, preferably operating on the two-stroke cycle, having a cylinder block (8) incorporating a bank of cylinders (10) each communicating with a crankcase (15). Each cylinder (10) having inlet ports (21, 29) located on each of the two opposite sides of the bank of cylinders (10), and a conduit (17) communicating at least one port (21) on one side of the bank with at least one port (29) on the opposite side of the bank. That conduit (17) extends through a crankshaft bearing support portion (14a) of the cylinder block (8) located within said crankcase (15) below the level of the cylinders (10).