To improve the performance of a hydraulic pump unloading feature and to eliminate a noise problem induced by water hammer effect on a Case model 821 Wheel Loader, a unique soft-shift, spring-biased cartridge logic element was designed and used in combination with a metering pressure sequence valve. The result was a marked improvement in the pump unloading transition and in reduction of noise.
Soft Shift Pump Unloading Valve
Sae Technical Papers
Earthmoving Industry Conference & Exposition ; 1992
1992-04-01
Aufsatz (Konferenz)
Englisch
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