Internal-combustion engines – Charge forming device – With fuel pump
Patent
1979-03-23
1981-03-10
Myhre, Charles J.
Internal-combustion engines
Charge forming device
With fuel pump
123139AP, 123 9016, 123 9017, 123 9055, F02M 3900, F02D 104
Patent
active
042547490
ABSTRACT:
A hydraulic advance device for selectively transmitting applied forces to a fuel injector of an internal combustion engine. The device is operative to select a normal or advanced timing of the fuel injection. An outer cylindrical body (66) is mounted in the upper end of a fuel injector adapter. An inner body (108) is slidably received in an outer body and a reaction member (103) and pressure responsive plunger (117) are slidably received in a bore formed in the inner body. The plunger and the bore cooperate to define a fluid chamber (128). A one-way valve (132) in the chamber permits fluid above a predetermined pressure applied during the advanced stage of the fuel injection cycle to enter the chamber which prevents movement of the plunger relative to the inner body member. At pressures below a predetermined value and during the normal phase of the fuel injection cycle, the plunger and reaction member first move relative to the inner body a predetermined amount during which time no movement is transferred to the inner body thus delaying fuel injection relative to advance phase fuel injection.
REFERENCES:
patent: 2840063 (1958-06-01), Porchas
patent: 3786792 (1974-01-01), Pelizzoni
patent: 3859973 (1975-01-01), Dreisin
patent: 3967602 (1976-07-01), Brown
patent: 4164917 (1979-08-01), Glasson
Diesel Injector Advance Device of: Cummins Engine Co., Inc., Columbus, Indiana, 47201, as described as Exhibit A in applicant's prior art statement of Mar. 23, 1979.
S.A.E. Journal, Aug., 1942, "Some Results of Valve-Gear Research as Applied to Diesel Engines", Voorhies, Carl, pp. 358-371, in particular pp. 367-370 and Figure 28.
Hillebrand George A.
Krieg John J.
Crist E. C.
Eaton Corporation
McCloskey R. J.
Miller Carl Stuart
Myhre Charles J.
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