Method and system for injecting a pilot fuel into a combustion c

Details Method and system for injecting a pilot fuel into a combustion c Method and system for injecting a pilot fuel into a combustion c

1985-07-29

1988-06-07

Argenbright, Tony M.

Internal-combustion engines

Combustion chamber means having fuel injection only

Using multiple injectors or injections

123 1A, 123446, 123500, F02D 1908, F02M 5926

Patent

active

047489499

ABSTRACT:
The fuel injection system is provided with a control device for controlling the pilot fuel injection phase to be less than ten percent of the main fuel injection phase. In one embodiment, an injection pump is constructed with a piston having a part with a pair of bevelled edges which control the start and end of injection as well as a tension spring for abruptly moving the piston in the delivery stroke. In another embodiment, a control device includes a rotatable spool which has a cross-bore for communicating cyclically with a pair of radial bores in a surrounding sleeve and which, in turn, communicate with oppositely disposed bores in a casing in order to deliver a flow of pilot fuel during the injection phase.

REFERENCES:
patent: 1494020 (1924-05-01), Riehm
patent: 1767701 (1930-06-01), Riehm
patent: 1904799 (1933-04-01), Palmer
patent: 2132083 (1938-10-01), Pescara
patent: 2692587 (1954-10-01), Barber
patent: 3792692 (1974-02-01), Kiley
patent: 4368702 (1983-01-01), Finsterwalder et al.
patent: 4388908 (1983-06-01), Babitzka et al.
patent: 4440134 (1984-04-01), Nakao et al.
patent: 4543930 (1985-10-01), Baker

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