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公开(公告)号:US07165950B2
公开(公告)日:2007-01-23
申请号:US10736161
申请日:2003-12-15
CPC分类号: F15B13/024 , F04B1/2042 , F04B3/006 , F15B20/007 , F15B2211/20546 , F15B2211/50518 , F15B2211/511 , F15B2211/5157 , F15B2211/528 , F15B2211/8752 , Y10T137/2761
摘要: A two-stage pressure relief valve for use with hydraulic systems is disclosed. The two-stage pressure relief valve has a first stage that relieves increases in hydraulic system pressure over the normal operating pressure and up to a selected threshold pressure level, and a second stage that brings the hydraulic system pressure down to a selected reduced operating pressure that is below the normal operating pressure in response to increases in the operating pressure over the threshold pressure level.
摘要翻译: 公开了一种用于液压系统的两级减压阀。 两级减压阀具有第一级,其减轻液压系统压力在正常工作压力和高达所选阀值压力水平之上的增加,以及将液压系统压力降低至所选择的降低的操作压力的第二级, 响应于超过阈值压力水平的操作压力的增加而低于正常工作压力。