1. Date of download: 10/23/2017
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From: Soft Switch Lock-Release Mechanism for a Switch-Mode Hydraulic Pump Circuit
J. Dyn. Sys., Meas., Control. 2014;136(3): doi: /
Figure Legend:
Circuit (a) is a generic virtually variable displacement pump circuit. Circuit (b) is equivalent to circuit (a), but uses two 2-way valves instead of a single 3-way valve. The relief valve and check valve illustrate two ways of reducing pressure rises during valve transitions. Circuit (c) illustrates the soft switching concept.