Fluid sprinkling – spraying – and diffusing – Unitary injection nozzle and valve with continuously...
Patent
1981-12-31
1983-10-18
Kashnikow, Andres
Fluid sprinkling, spraying, and diffusing
Unitary injection nozzle and valve with continuously...
239125, 2391323, F02M 4500, F02M 5304, F02M 5500
Patent
active
044101376
ABSTRACT:
A unit injector (200, 300, 400, 500, 600) of the cam actuated, open nozzle type is disclosed including an extremely compact injector body (202, 302, 402, 502) having a minimum number of internal flow passages and a two piece injector plunger (222, 308, 310, 412, 506, 510, 606, 612) arranged to provide pressure/time metering (all embodiments), scavenging fuel flow (all embodiments), hydraulic timing (all embodiments), fuel cut off (embodiments of FIGS. 1, 3 and 4), wear compensation in advance timing mode (all embodiments) and sharp cut off of fuel injection without high "crush" loads and wear compensation in retard and advance modes (embodiment of FIG. 3). All embodiments of this invention are characterized by an injector body (202, 302, 402, 502) having an exterior shape designed to form a fuel supply flow path and an isolated fuel drain flow path between the exterior surface of the injector body (202, 302, 402, 502) and the interior surface of the recess in which the injector (200, 300, 400, 500, 600) is designed to be received. This arrangement allows a very simple pattern of passages (mostly radial passages) to be formed in the injector body.
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Cummins Engine Company, Inc.
Kashnikow Andres
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