摘要:
An internal combustion engine, including a combustion chamber with a first aperture; a compression chamber with a second aperture; and a crossover valve comprising an internal chamber, first and second valve seats, a valve head, and first and second valve faces on the valve head, wherein the first aperture allows fluid communication between the combustion chamber and the internal chamber, the second aperture allows fluid communication between the compression chamber and the internal chamber, the first valve face couples to the first valve seat to occlude the first aperture, and the second valve face couples to the second valve seat to occlude the second aperture.
摘要:
An exhaust valve assembly for a two-stroke internal combustion engine has a valve actuator having a first pressure chamber and a second pressure chamber, and a valve operatively connected to the valve actuator. The first and second pressure chambers are adapted for selectively receiving one of a first pressure and a second pressure. The first pressure is higher than the second pressure. The valve actuator moves the valve between at least a first valve position and a second valve position. The valve actuator moves the valve to the first valve position when the first pressure is supplied to the first pressure chamber and the second pressure is supplied to the second pressure chamber. The valve actuator moves the valve to the second valve position when the second pressure is supplied to the first pressure chamber and the first pressure is supplied to the second pressure chamber.
摘要:
An internal combustion engine includes a power cylinder having a power chamber delimited by a power piston, the power chamber having an intake valve and an exhaust valve, a compression cylinder having a compression chamber delimited by a compression piston, the compression chamber having a fresh charge intake valve, and a flow-through chamber delimited by a flow-through piston and fluidly connected with the compression chamber via a flow-through passage. The flow-through chamber is directly or indirectly connected with the power chamber via a push-out passage. A flow-through valve is disposed in the flow-through passage. A cooler is arranged so as to cool compressed fresh charge flowing through the first flow-through passage. The pistons and the valves are movable such that the cooled, compressed fresh charge is pushed over by the compression piston from the compression chamber into the first flow-through chamber and is ultimately pushed out into the power chamber.
摘要:
A split-cycle water injection engine includes a crankshaft rotatable about a crankshaft axis. A power piston. is slidably received within a power/expansion cylinder and operatively connected to the crankshaft. A compression piston is slidably received within a compression cylinder and operatively connected to the crankshaft. A crossover passage is operatively connected between the compression cylinder and the power/expansion cylinder and selectively operable to receive compressed air from the compression cylinder and to deliver compressed air to the power/expansion cylinder for use in transmitting power to the crankshaft during engine operation. Valves selectively control gas flow into and out of the compression and power cylinders. A water injector is associated with and adapted to inject water into at least one of the compression cylinder, the crossover passage and the power cylinder during engine operation.
摘要:
Die Erfindung betrifft eine Brennkraftmaschine mit zumindest einem den Durchflussquerschnitt eines Gaswechselkanales verändernden Steuerorgan (6, 14), das mittels eines Betätigungsgliedes (8) und eines Verbindungselementes (9) je nach dem Betriebszustand der Brennkraftmaschine selbstständig verstellbar ist. Um eine selbsttätige Verstellung des Steuerorganes (6, 14) in Abhängigkeit von Drehzahl und Last auf einfache Weise zu ermöglichen, ist vorgesehen, dass die Brennkraftmaschine in einem Gestell (1) elastisch gelagert ist, und dass das Betätigungsglied (8) des Steuerorganes (6, 14) über das Verbindungselement (9) an mindestens einem gestellfesten Widerlager (10) abgestützt ist, so dass das Steuerorgan (6, 14) durch die zu Folge des Drehmomentes der Brennkraftmaschine auftretende Relativbewegung zwischen Brennkraftmaschine (2) und Gestell (1) mit zunehmenden Drehmoment im Sinne einer Vergrößerung des Durchflussquerschnittes des Gaswechselkanales unter gleichzeitiger Veränderung des Gaswechselbeginnes verstellbar ist.
摘要:
Power module (12) comprising an air compressor chamber (40), an air supply valve (30) operable to control air flow to the air compressor chamber (40), a combustion chamber (58) separate from the air compressor chamber (36), an air storage chamber (36) arranged between the air compressor chamber (40) and the combustion chamber (58), an actuating fluid common rail (78), an actuating fluid compressor chamber (80), an actuating fluid supply valve (70) operable to control actuating fluid flow to the actuating fluid compressor chamber (80), an actuating fluid storage chamber (76) arranged between the actuating fluid compressor chamber (80) and the actuating fluid common rail (78), a hydraulically-actuatable intake valve (98) operable to control air flow to the combustion chamber, and a hydraulically-actuatable exhaust (102), valve operable to control exhaust gas flow from the combustion chamber (58).
摘要:
The proposed two-stroke internal combustion engine comprises a cylinder with a piston and an aperture to accommodate the intake valve through which the fuel/air mixture passes from the intake manifold into the suction chamber. The suction chamber is situated beneath the piston, isolated from the crankcase and communicates with the combustion chamber. The combustion chamber is situated above the piston and communicates, via the transfer manifold at whose intake is situated the fuel/air supply intake valve, with the suction chamber. An auxiliary piston is arranged in the cylinder between the crankcase and main piston and rigidly connected to the latter. A second suction chamber is provided between the first suction chamber and the auxiliary piston; this second suction chamber is isolated from the first by a baffle plate and communicates with the intake manifold and the transfer manifold.
摘要:
Pneumatically-controlled fuel injection in a two-stroke engine comprising at least one cylinder (1) with a piston (2) delimiting a combustion chamber (14) and a pump housing (5) located in the extension of the combustion chamber and separated therefrom by the piston (2), at least one main air inlet (7) located within the pump housing, including a first backflow preventor (6), a device for supplying the pressurized air-fuel mixture, including means (20) for opening and closing an opening (12) for introducing the air-fuel mixture into the combustion chamber (14), and a channel (15) linked to the opening (12), containing the pressurized air-fuel mixture. The engine of the invention also comprises means (30-34) for drawing and introducing a pressurized fuel-air mixture into the channel (15).