Invention Application
- Patent Title: CUSHIONED SWING CIRCUIT
- Patent Title (中): 冲击电路
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Application No.: PCT/US2012/029176Application Date: 2012-03-15
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Publication No.: WO2012125793A1Publication Date: 2012-09-20
- Inventor: HARSIA, Jarmo , LOWMAN, Roger , FRANZONI, Germano
- Applicant: PARKER HANNIFIN CORPORATION , HARSIA, Jarmo , LOWMAN, Roger , FRANZONI, Germano
- Applicant Address: 6035 Parker Hannifin Corporation Cleveland, OH 44124-4141 US
- Assignee: PARKER HANNIFIN CORPORATION,HARSIA, Jarmo,LOWMAN, Roger,FRANZONI, Germano
- Current Assignee: PARKER HANNIFIN CORPORATION,HARSIA, Jarmo,LOWMAN, Roger,FRANZONI, Germano
- Current Assignee Address: 6035 Parker Hannifin Corporation Cleveland, OH 44124-4141 US
- Agency: CLARK, Robert et al.
- Priority: US61/452,661 20110315
- Main IPC: E02F9/22
- IPC: E02F9/22
Abstract:
A cushioned swing circuit provides the reduction of oscillation common in the operation of heavy equipment such as with boom members. The circuit utilizes a transfer of high pressure fluid flow (caused by the inertial of the swing during rapid deceleration) from one leg of the circuit to the other leg of the circuit or to the sump which serves as decompression for the oil that would ordinarily be trapped in the leg. These phenomena create the swing cushioning effect.
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