Rotational actuation fluid control valve for a hydraulically act

Details Rotational actuation fluid control valve for a hydraulically act Rotational actuation fluid control valve for a hydraulically act

1998-12-17

2000-04-18

Shaver, Kevin

Fluid sprinkling, spraying, and diffusing

Injection nozzle opened by relieving supply

239 88, 239 95, 239124, 13762522, 13762565, F02M 4116

Patent

active

06050496&

ABSTRACT:
An actuation fluid control valve for a hydraulically actuated fuel injector comprises an injector body having an actuation fluid control passage, a low pressure actuation fluid drain passage, and a high pressure actuation fluid supply passage for accepting high pressure actuation fluid into the fuel injector. An actuator is attached to the injector body. A rotatable valve member includes a first valve passage and a second valve passage and is disposed in the injector body such that high pressure actuation fluid entering from the high pressure actuation fluid supply passage will not bias the rotatable valve member either toward the first position or toward the second position. The rotatable valve member is rotatable in response to the actuator between a first position in which the high pressure actuation fluid supply passage is in fluid communication with the actuation fluid control passage via the first valve passage, and a second position in which the high pressure actuation fluid supply passage is not in fluid communication with the actuation fluid control passage.

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