Fluid sprinkling – spraying – and diffusing – Fluid pressure responsive discharge modifier* or flow... – Fuel injector or burner
Patent
1996-12-23
1998-10-20
Weldon, Kevin
Fluid sprinkling, spraying, and diffusing
Fluid pressure responsive discharge modifier* or flow...
Fuel injector or burner
23953312, F02M 5502
Patent
active
058234438
ABSTRACT:
A fuel system including a fuel nozzle is disclosed. The fuel nozzle is adapted to receive pulsed pressurized fuel from a source and includes a valve seat assembly having a valve seat body with a longitudinally extending passage. The passage of the valve seat body has a valve seat extending thereabout and interfaces with a downstream opening valve element which is disposed within the longitudinally extending passage and operates to move into and out of sealing engagement with the valve seat to regulate the flow of pressurized fuel though the passage. The valve element has a spherically configured upstream surface for sealing engagement with the valve seat which includes an annular drag groove extending thereabout. The drag groove functions to increase viscous drag force, in the downstream opening direction, which is imparted on the valve element by fuel flow over the spherical upstream surface. The nozzle also has an annular, fuel directing orifice disc which is disposed downstream of the valve seat. The orifice disc includes fuel directing orifices which extend therethrough from a first, upstream side to a second downstream side. The annular fuel directing orifice disc limits downstream movement of the valve member and directs fuel through the orifices into a desired fuel pattern.
REFERENCES:
patent: 2154875 (1939-04-01), Streby
patent: 2162892 (1939-06-01), Rotter
patent: 2172556 (1939-09-01), Edwards
patent: 3249308 (1966-05-01), Cadiou
patent: 4270257 (1981-06-01), Kimata et al.
patent: 4511082 (1985-04-01), Ballik et al.
patent: 4907748 (1990-03-01), Gardner et al.
Cooper Richard Lloyd
Knebel Albert Martin
Salemi Michael Raymond
Barr Jr. Karl F.
General Motors Corporation
Weldon Kevin
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