Fuel pump injector for compression ignition engines

Details Fuel pump injector for compression ignition engines Fuel pump injector for compression ignition engines

1997-05-06

1998-07-07

Moulis, Thomas N.

Internal-combustion engines

Charge forming device

With fuel pump

417380, F02M 3704, F04B 1700

Patent

active

057753059

ABSTRACT:
A fuel pump injector for a reciprocating engine having a piston and combustion chamber. The injector comprises a housing having a driving piston slidably received therein. The driving piston is responsive to the pressure in the combustion chamber. A driving cylinder of fuel interfaces with the driving piston and holds the driving piston in place by static pressure. A second smaller diameter driven cylinder of fuel is responsive to the pressure of the driving cylinder. The driving piston statically pressurizes the driving cylinder during the engine's compression stroke. A valve releases the pressure from the driving cylinder to effect fuel injection by transferring the force on the driving piston onto the smaller diameter driven cylinder which injects the atomized fuel into the combustion chamber where it ignites.

REFERENCES:
patent: 2572118 (1951-10-01), Dickson
patent: 4141675 (1979-02-01), O'Neill
patent: 4197996 (1980-04-01), Giardini
patent: 4247044 (1981-01-01), Smith
patent: 4306680 (1981-12-01), Smith
patent: 4473340 (1984-09-01), Walsworth
patent: 5067467 (1991-11-01), Hill et al.
patent: 5685272 (1997-11-01), Paul et al.

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