Load leveling air pump with pressure clutch

Details Load leveling air pump with pressure clutch Load leveling air pump with pressure clutch

1979-11-05

1982-08-24

Peters, Jr., Joseph F.

Land vehicles

Body elevation or tilt

Establishing riding or trim height

267 6417, 280711, B62D 3700

Patent

active

043457738

ABSTRACT:
An automatic load leveling air pump is adapted for use with an air adjustable shock absorber to maintain a substantially constant vehicle height despite changes in vehicle loading. The pump includes a housing connected to the vehicle axle and a pump piston connected to the vehicle frame. A feedback device slides within the housing in response to a spring and to air pressure and includes a pair of relatively movable portions which cooperate to act as a clutch against the housing during compression strokes of the pump piston. The pump piston, the housing and the feedback device enclose a compression chamber. The feedback device moves in response to air pressure to control the compression ratio of the compression chamber as the vehicle height changes.

REFERENCES:
patent: 1990517 (1935-02-01), Bedford
patent: 2021043 (1935-11-01), Bedford
patent: 2977110 (1961-03-01), Kilgore
patent: 2987310 (1961-06-01), Ord
patent: 3181877 (1965-05-01), McHenry
patent: 3208760 (1965-09-01), Lucien

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