Internal-combustion engines – Accessories – Covers – trays – vibrators – corrosion inhibitors – air filters
Patent
1980-12-19
1983-09-13
Lazarus, Ira S.
Internal-combustion engines
Accessories
Covers, trays, vibrators, corrosion inhibitors, air filters
123DIG11, 123333, F02M 6302
Patent
active
044035802
ABSTRACT:
The control circuit and apparatus is used and utilized with and by internal combustion engines that employ injector pumps for delivery of fuel to cylinders. Usually this arrangement includes metering and often the engine is a diesel engine. The fuel is delivered at a given flow rate which is in excess of the required flow and this excess is returned through a return conduit to a supply tank. The invention provides for electrically actuating apparatus for effectively terminating the supply of fuel to the injector pump. Five circuit arrangements are depicted, a first arrangement includes a solenoid actuated valve in the supply line and an electrically actuated return flow pump in the return line. A second arrangement has a return flow pump in the delivery line with the return flow pump, when actuated, having a greater flow capability than the transfer pump. A third arrangement employs two electrically actuated three-way valves and associated by-pass conduits in the delivery line. A fourth arrangement utilizes the solenoid actuated valve and return flow pump with a check valve in the return conduit. The fifth arrangement employs a three-way valve and a return flow pump in a by-pass line feeding to the delivery conduit.
REFERENCES:
patent: 3148671 (1964-09-01), Bottorff
patent: 4296718 (1981-10-01), Baugh et al.
patent: 4319550 (1982-03-01), Ishii et al.
Lazarus Ira S.
Roberts Ralph R.
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