Injection compensator for fuel injection pump

Details Injection compensator for fuel injection pump Injection compensator for fuel injection pump

1982-06-07

1984-05-22

Lazarus, Ira S.

Internal-combustion engines

Engine speed regulator

Having condition responsive means with engine being part of...

123383, 123503, F02D 2302

Patent

active

044495005

ABSTRACT:
A diaphragm (38) controls a position of a control sleeve (14) relative to a plunger or piston (16) in response to a pressure differential between a pressure chamber (42) and a control chamber (46) which are defined by the diaphragm (38). The pressure chamber (42) is communicated to an atmospheric pressure or a boost pressure while the control chamber (46) is selectively communicated to a source of vacuum supply through a first check valve (62) and to the atmosphere through a second check valve (58). The first and second check valves open when the pressure inside the control chamber is higher and lower than a reference level, respectively, thereby maintaining the pressure within the control chamber (46) substantially at the reference level to promote an accurate control of the control sleeve (14).

REFERENCES:
patent: 4095572 (1978-06-01), Scholtz
patent: 4228774 (1980-10-01), Ritter et al.
patent: 4286559 (1981-09-01), Ritter et al.
patent: 4308834 (1982-01-01), Eheim
Straubel et al., Distributor Injection Pump, ASME Publication, 8/1979, p. 5.

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