Internal-combustion engines – Charge forming device – With fuel pump
Patent
1993-10-29
1994-12-13
Cross, E. Rollins
Internal-combustion engines
Charge forming device
With fuel pump
123 9016, 123 9048, F02M 3704, F01L 134, F01L 114
Patent
active
053721144
ABSTRACT:
A hydraulic tappet for use in the fuel injector drive trains of compression ignition or diesel internal combustion engines are provided which optimize injector timing for improved fuel economy. One embodiment of the hydraulic tappet of the present invention includes a dampened pressure regulating feature which determines blow down pressure. A second embodiment of the hydraulic tappet of the present invention includes a dampening load cell feature which allows the blow down pressure of the load cell to be increased and injection timing to be optimally advanced.
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Duckworth Donald E.
Free P. Douglas
Gant Gary L.
Katzenmeyer James R.
Muntean George L.
Cross E. Rollins
Cummins Engine Company, Inc.
Moulis Thomas N.
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