Soft Shift Pump Unloading Valve

Paper #:
  • 920924

Published:
  • 1992-04-01
Citation:
Casale, A., "Soft Shift Pump Unloading Valve," SAE Technical Paper 920924, 1992, https://doi.org/10.4271/920924.
Author(s):
Pages:
9
Abstract:
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.
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