- 专利标题: Load-sensing multi-way valve work section
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申请号: US17559193申请日: 2021-12-22
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公开(公告)号: US11841716B2公开(公告)日: 2023-12-12
- 发明人: Zhongxiao Ma , Likui Zhai , Shenzhi He
- 申请人: Danfoss Power Solutions (Zhejiang) Co. Ltd.
- 申请人地址: CN Zhejiang
- 专利权人: Danfoss Power Solutions (Zhejiang) Co. Ltd.
- 当前专利权人: Danfoss Power Solutions (Zhejiang) Co. Ltd.
- 当前专利权人地址: CN Zhejiang
- 代理机构: McCormick, Paulding & Huber PLLC
- 优先权: CN 2011586255.2 2020.12.28 CN 2023224845.9 2020.12.28
- 主分类号: G05D16/10
- IPC分类号: G05D16/10 ; G05D16/04
摘要:
Disclosed is a load-sensing multi-way valve work section comprising a valve body, which comprises a compensation valve and a reversing valve both formed therein, wherein the compensation valve is provided with a compensation valve bore formed in the valve body and a compensation valve spool accommodated in the compensation valve bore, with a compensation valve oil inlet chamber, a compensation valve oil outlet chamber, a spring-side control chamber and a springless-side control chamber all being formed inside the compensation valve bore; wherein the reversing valve is provided with a reversing valve bore formed in the valve body and a reversing valve spool accommodated in the reversing valve bore, the reversing valve spool being configured to control communications among a main oil inlet chamber, a first working oil chamber, a second working oil chamber, a first oil return chamber, a second oil return chamber, a first load-sensing feedback pressure sensing opening and a second load-sensing feedback pressure sensing opening formed in the reversing valve bore, the compensation valve oil outlet chamber being communicated to the main oil inlet chamber; and wherein the load-sensing multi-way valve work section also defines a feedback passage formed within the valve body, the feedback passage being configured to communicate one of the first and second load-sensing feedback pressure sensing openings with the spring-side control chamber depending on a position of the reversing valve spool in the reversing valve bore.
公开/授权文献
- US20220206517A1 LOAD-SENSING MULTI-WAY VALVE WORK SECTION 公开/授权日:2022-06-30
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