Reciprocating engine and inlet system therefor

Details Reciprocating engine and inlet system therefor Reciprocating engine and inlet system therefor

F - Mech Eng,Light,Heat,Weapons

01

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F01L 9/02 (2006.01) F01L 11/00 (2006.01) F01L 11/02 (2006.01) F01L 25/04 (2006.01)

Patent

CA 2478843

The invention relates to a reciprocating engine and a working fluid inlet system therefore. The engine includes at least one cylinder (30) with a reciprocating piston (32) therein and a variable volume expansion chamber capable of receiving a working fluid via an inlet valve (40). The inlet system includes a pilot valve (34) having an open condition and a closed condition. In the open condition, the secondary fluid passes therethrough to act on the inlet valve (40). The system also includes an actuating means (18) for controlling the condition of the pilot valve (34). The inlet valve (40) is adapted to open in response to the action of the secondary fluid. The engine may also include exhaust means, possibly by porting in the piston (32) and a cylinder wall. The working fluid may be used as the secondary fluid.

L'invention concerne un moteur alternatif et un système d'injection de fluide de travail associé. Le moteur comprend au moins un cylindre (30) dans lequel se trouve un piston à mouvement alternatif (32), et une chambre à volume variable conçue pour recevoir un fluide de travail par l'intermédiaire d'une soupape d'admission (40). Le système d'injection comprend une soupape pilote (34) présentant un état ouvert et un état fermé. A l'état ouvert, le fluide secondaire traverse la soupape pilote de manière à agir sur la soupape d'admission (40). Le système comprend également un moyen d'actionnement (18) conçu pour commander l'état de la soupape pilote (34). La soupape d'admission (40) est conçue pour s'ouvrir en réaction à l'actionne du fluide secondaire. Le moteur peut également comprendre un moyen d'échappement, éventuellement par portage du piston (32) et de la paroi du cylindre. Le fluide de travail peut être utilisé en tant que fluide secondaire.

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