Fluid sprinkling – spraying – and diffusing – Unitary injection nozzle and pump or accumulator plunger
Patent
1998-08-27
2000-09-05
Douglas, Steven O.
Fluid sprinkling, spraying, and diffusing
Unitary injection nozzle and pump or accumulator plunger
2395338, F02M 4702
Patent
active
061130001
ABSTRACT:
A hydraulically-actuated fuel injector includes an injector body that defines an actuation fluid inlet that is open to a first actuation fluid cavity, and a second actuation fluid cavity that is connected to the first actuation fluid cavity via a connection passage. The injector body also defines at least one actuation fluid drain. A source of relatively high pressure actuation fluid is connected to the actuation fluid inlet. A relatively low pressure reservoir is connected to the at least one actuation fluid drain. A control valve is attached to the injector body and is moveable between a first position in which the second actuation fluid cavity is open to the first actuation fluid cavity, and a second position in which the second actuation fluid cavity is open to the at least one actuation fluid drain. An intensifier piston is movably mounted in the injector body and has a primary hydraulic surface exposed to fluid pressure in the first actuation fluid cavity, and an opposing hydraulic surface exposed to fluid pressure in the second actuation fluid cavity.
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Caterpillar Inc.
Douglas Steven O.
McNeil Michael B.
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