Vehicle load sensing arrangement

Details Vehicle load sensing arrangement Vehicle load sensing arrangement

1980-01-15

1982-04-20

Butler, Douglas C.

Fluid-pressure and analogous brake systems

Load control

Responsive to fluid pressure spring

188195, 303 6C, B60T 822

Patent

active

043255817

ABSTRACT:
A vehicle load sensing arrangement comprises an input arrangement to which is applied the force of a road spring and a control valve which may, for example, be a pressure reducing valve, having a movable valve member. A control spring acts in opposition to the road spring and together with a force-reduction arrangement serves to reduce the road spring force so that only a proportion of the road spring force is applied to the valve member the remainder being applied to the sprung part of the vehicle. To reduce the load and size of the control spring, and to thereby reduce the required installation space, the control spring is arranged between the valve member and the force-reduction arrangement and acts against the force transmitted by the force-reduction arrangement, so that the effective force acting on the valve member is the difference between the proportion of the road spring force transmitted by the force-reduction arrangement and the force of the control spring.

REFERENCES:
patent: 2980417 (1961-04-01), Pence
patent: 3417986 (1968-12-01), Fuke
patent: 3709568 (1973-01-01), Miyake et al.
patent: 4062597 (1977-12-01), Sawyer et al.
patent: 4150855 (1979-04-01), Demido

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