Four-port port plate for torque balance and shock mitigation

A valve plate and window technology, applied in the field of hydraulic pumps, can solve the problems of increasing the size of the axial piston pump, complex structure of the pump body, poor oil suction and discharge, etc., and achieve the effect of improving variable performance
CN108916033BInactive Publication Date: 2020-02-11山西施沃浦电器设备有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
山西施沃浦电器设备有限公司
Publication Date
2020-02-11
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a valve plate with four flow allocation windows and capable of balancing torque and easing impact. The valve plate is applicable to asymmetric axial plunger piston pumps. One oil absorbing window and three oil discharging windows are formed in a round plate, and under the circumstance of not changing a pump body structure, the generated instantaneous pressure impact can beeased when a plunger piston cavity is communicated with damping grooves formed in the front ends of the oil discharging windows; it is avoided that an imbalanced one-way torque effect is generated ona variable oblique plate by a plunger piston slipping boot assembly, and therefore the variable performance of an asymmetric axial plunger piston pump is improved.
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Description

technical field

[0001] The invention belongs to the technical field of hydraulic pumps, and in particular relates to a four-distribution window distribution plate capable of balancing torque and alleviating impact. Background technique

[0002] The hydraulic system (pump control system for short) in which the hydraulic pump directly controls the hydraulic actuator has the advantages of simple structure, small size and high efficiency, and has been popularized and applied in the fields of industrial equipment, walking machinery, and aerospace. The asymmetric axial piston pump is a new type of axial piston pump specially proposed to solve the unbalanced flow between the two chambers of the single piston rod hydraulic cylinder in the pump control system.

[0003] The invention patent "Closed Electro-hydraulic Control System" (Patent No.: 200610012476.2) discloses a 3-port axial plunger pump, on which three oil suction and discharge distribution windows arranged in series or in ...

Claims

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