Vehicle speed control system

Details Vehicle speed control system Vehicle speed control system

1988-11-30

1990-05-15

Mitchell, David M.

Motor vehicles

With means responsive to speed of vehicle for maintaining...

123333, 123198DB, 137509, 137613, F02B 7700

Patent

active

049251961

ABSTRACT:
A line pressure responsive flow control valve (46) is in series with a solenoid (34) operated off-on valve (26). These two valves (46, 26) are in a common housing having an inlet port (94) and an outlet port (96). A branch (24) of a bypass line (24, 24') extends from a fuel delivery line (10) to a fuel tank (16). A spring (76) biases a closure wall (70) of a piston (66) into contact with a valve seat (88) surrounding a valve orifice (90). Fuel pressure at the inlet (24) acts on the closure wall (70). When this pressure exceeds a predetermined minimum, the piston (66) is moved so as to open the valve orifice (90), allowing fuel to flow from the bypass line (24) to the off-on valve (26). The line pressure responsive flow control valve (46) functions to control flow through the bypass line (24, 24') at times when the off-on valve (26) is open.

REFERENCES:
patent: 2164114 (1939-06-01), Kolb
patent: 2989971 (1961-06-01), Valentine
patent: 3302980 (1967-02-01), Bystricky et al.
patent: 3738346 (1973-06-01), Goodman
patent: 4011848 (1977-03-01), Coddington
patent: 4245598 (1981-01-01), Ruhl
patent: 4329954 (1982-05-01), Dobbs
patent: 4424830 (1984-01-01), Arnsperger et al.

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