Auxiliary fuel supply system

Details Auxiliary fuel supply system Auxiliary fuel supply system

1987-06-09

1988-10-18

Myhre, Charles J.

Internal-combustion engines

Two-cycle

Rear compression

123447, F02B 3304

Patent

active

047779136

ABSTRACT:
An auxiliary fuel supply system is provided for a two cycle internal combustion engine (302). A first fuel line (350) supplies fuel from the fuel pump (338) to a solenoid (352) which is continuously cyclable between ON and OFF states during running of the engine, includig high speed operation where detonation may occur. Fuel then flows through a second fuel line (354) to a restriction orifice metering housing (356), and then to a plurality of third branch fuel lines (358, 384, 386, 388, 390 and 392) for delivery to respective cylinders. The restriction orifices provide a pressure drop from the second fuel line to the plurality of third fuel lines, to provide lower fuel pressure in the third fuel lines, to reduce the chance of leakage at the intake manifold (326), and also to reduce fuel pressure fluctuations in the third fuel lines otherwise due to cycling of the solenoid. Metering housing structure is disclosed. The solenoid is controlled by a variable duty cycle oscillator (408), which in turn is controlled by a fuel enrichment signal (84) output by an electronic control which is responsive to engine knock and/or temperature. Control circuitry is disclosed.

REFERENCES:
patent: 2937636 (1960-05-01), Aldinger et al.
patent: 3187733 (1965-06-01), Heintz
patent: 3749070 (1973-07-01), Oishi et al.
patent: 3931808 (1976-01-01), Rachel
patent: 4114570 (1978-09-01), Marchak et al.
patent: 4184460 (1980-01-01), Harada et al.
patent: 4243009 (1981-01-01), Staerzl
patent: 4286553 (1981-09-01), Baltz et al.
patent: 4312214 (1982-01-01), Kramer et al.
patent: 4312314 (1982-01-01), McChesney et al.
patent: 4327691 (1982-05-01), Moser
patent: 4349000 (1982-09-01), Staerzl
patent: 4391254 (1983-07-01), Staerzl
patent: 4421088 (1983-12-01), Seilly
patent: 4429673 (1984-02-01), Staerzl
patent: 4478068 (1984-10-01), Bonitz et al.
patent: 4481924 (1984-12-01), Kobayashi
patent: 4498434 (1985-02-01), Baltz et al.
patent: 4509472 (1985-04-01), Slattery
patent: 4521769 (1985-06-01), Dudeck et al.
patent: 4528955 (1985-07-01), Sugiura
patent: 4542726 (1985-09-01), Baltz et al.
patent: 4554896 (1985-11-01), Sougawa
patent: 4621602 (1986-11-01), Furuyama
patent: 4664083 (1987-05-01), Nix et al.
patent: 4667637 (1987-05-01), Staerzl
patent: 4671220 (1987-06-01), Inoue et al.
patent: 4674448 (1987-06-01), Steiger

Affiliated with

Also associated with

Rating

Auxiliary fuel supply system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Auxiliary fuel supply system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Auxiliary fuel supply system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1188668