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COMPOSITE VALVE FOR CENTRALIZED LUBRICATION SYSTEM AND CENTRALIZED LUBRICATION SYSTEM
COMPOSITE VALVE FOR CENTRALIZED LUBRICATION SYSTEM AND CENTRALIZED LUBRICATION SYSTEM
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机译：集中润滑系统的复合阀和集中润滑系统
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摘要
PROBLEM TO BE SOLVED: To provide a single, low cost and general purpose compound valve capable of being easily applied to four kind centralized lubrication system. ;SOLUTION: This compound valve for centralized lubrication systems comprises a three position open center and four way solenoid directional control valve 2 and a three position open center and five way pilot operation directional control valve 3. In the solenoid control valve 2, a P port is communicated with a pump inlet port 4 through an oil supply passage 6 and with a first pressure output port 8 through a first pressure detecting passage 9, and a T port is communicated with a tank inlet port 5 through an exhaust oil passage 7, and an A port is communicated with the right pilot port X and the first outlet port 11 of the pilot control valve 3 through a first oil passage 16, and a B port is communicated with the left pilot port Y of the pilot control valve 3 and the second outlet port 12 through a second oil passage 17. In the pilot control valve 3, a P port is communicated with a second pressure output port 10, and a T port is with the tank inlet port 5, and A, B and C ports are communicated with a third outlet port 13, forth outlet port 14 and fifth outlet port 15 respectively.;COPYRIGHT: (C)1998,JPO
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