Split-cycle engine with water injection

F - Mech Eng,Light,Heat,Weapons – 02 – B

Patent

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Details

F02B 47/02 (2006.01) F02B 33/22 (2006.01) F02B 33/30 (2006.01) F02B 33/34 (2006.01) F02M 25/022 (2006.01) F02M 43/00 (2006.01)

Patent

CA 2679423

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.

L'invention concerne un moteur à cycle divisé avec injection d'eau comprenant un vilebrequin rotatif autour d'un axe de vilebrequin. Un piston moteur est reçu de manière coulissante dans un cylindre moteur/de détente et est raccordé de manière opérationnelle au vilebrequin. Un piston de compression est reçu de manière coulissante dans un cylindre de compression et raccordé de manière opérationnelle au vilebrequin. Un passage de liaison est raccordé de manière opérationnelle entre le cylindre de compression et le cylindre moteur/de détente et peut être actionné de manière sélective pour recevoir de l'air comprimé depuis le cylindre de compression et pour acheminer de l'air comprimé au cylindre moteur/de détente, afin de transmettre de l'énergie au vilebrequin pendant le fonctionnement du moteur. Les soupapes commandent de manière sélective le flux de gaz entrant et sortant des cylindres de compression et moteur. Un injecteur d'eau est associé à au moins un élément parmi le cylindre de compression, le passage de liaison et le cylindre moteur pendant le fonctionnement du moteur et adapté pour y injecter de l'eau.

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