Internal combustion engine and fuel introducing means therefor

Details Internal combustion engine and fuel introducing means therefor Internal combustion engine and fuel introducing means therefor

1977-09-12

1979-07-31

Myhre, Maurice C.

Internal-combustion engines

Two-cycle

Rear compression

123 32C, 123 32D, 123 32G, 123 33B, 123191SP, F02B 7504, F02B 300

Patent

active

041626648

ABSTRACT:
An internal combustion engine having a precombustion chamber connected to the cylinder by a venturi passage is supplied fuel through an opening in the venturi passage. Fuel is supplied to the precombustion chamber in an initial increment on the compression stroke so that the air and fuel in the precombustion chamber can be ignited at the end of the compression stroke and a stream of high pressure, hot gases returning through the venturi aspirate a second increment of fuel for completing combustion of the air in the cylinder. A bypass conduit from the precombustion chamber conveys gas under pressure to the fuel near the opening in the venturi to assist in ejecting said second increment of fuel into the hot gases in the venturi. A small cylinder and piston, or a diaphragm in the bypass conduit transmit pressure to the fuel without letting hot gases contact the fuel.
In a modification employing a valved opening, a fuel-air mixture is introduced into the precombustion chamber during the intake stroke of the piston. Upon combustion of this mixture in the precombustion chamber, an increment of liquid fuel is ejected at the venturi into the stream of hot, high pressure gases flowing from the precombustion chamber into the cylinder to provide fuel for the air in the cylinder.

REFERENCES:
patent: 887703 (1908-05-01), Sharpneck
patent: 1302653 (1919-05-01), Goodspeed
patent: 1305533 (1919-06-01), Gerhardt
patent: 1345723 (1920-07-01), Williams
patent: 1505100 (1924-08-01), Lightfoot
patent: 1525776 (1925-02-01), French
patent: 2126442 (1938-08-01), Band
patent: 2146032 (1939-02-01), Scott

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