Apparatus for combined blow-injection of fuel and air for fuel i

Details Apparatus for combined blow-injection of fuel and air for fuel i Apparatus for combined blow-injection of fuel and air for fuel i

1990-02-21

1991-09-10

Dolinar, Andrew M.

Internal-combustion engines

Charge forming device

Auxiliary air or gas used to inject fuel

239585, 239408, 239409, F02M 3900

Patent

active

050464728

ABSTRACT:
An apparatus for the combined blow-injection of fuel and air for fuel injection systems of internal combustion engines having a housing with a fuel connection an air connection and a blow-injection opening communicating with the air and fuel connections. Two valves are disposed in the housing and simultaneously actuated by an electromagnet. Both valves are disposed concentrically with one another, directly at the blow-injection opening to make it possible for the mixing ratio to be determined solely by the opening duration of the valves by means of synchronously clocked metering of fuel and air. The valve seat of the air valve and the valve seat of the fuel valve are carried in common by a hollow shaft valve member actuated by the electromagnet. For valve opening, the valve member of the air valve lifts inwardly of the housing and the valve member of the fuel valve lifts outwardly, and a stroke stop is disposed in the stroke of the valve member of the fuel valve in such a way that the maximum stroke path of the hollow shaft valve member is longer than that of the valve member of the fuel valve.

REFERENCES:
patent: 1431473 (1922-10-01), Lovejoy
patent: 1793154 (1931-02-01), Bellem et al.
patent: 4046112 (1977-09-01), Deckard
patent: 4406404 (1983-09-01), Horino et al.
patent: 4546739 (1985-10-01), Nakajima
patent: 4836453 (1989-06-01), Poehlman
patent: 4917307 (1990-04-01), Baxter et al.

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