Title:
FLOW DISTRIBUTION STRUCTURE FOR CYLINDER BLOCK FIXED HYDRAULIC MOTOR/PUMP
Document Type and Number:
WIPO Patent Application WO/2021/160181
Kind Code:
A1
Abstract:
A flow distribution structure for a cylinder block fixed hydraulic motor/pump, comprising a stationary flow distribution surface and a rotary flow distribution surface. A cylinder hole window (101), an oil inlet window (102) and an oil outlet window (103) are provided on the stationary flow distribution surface; and a flow distribution window (301) is provided on the rotary flow distribution surface, and is a inwards-sunken recess along the rotary flow distribution surface. When a plunger (105) is in an oil discharge section, the cylinder hole window (101) in communication with the plunger (105) is in communication with the oil outlet window (103) by means of the flow distribution window (301), and oil is discharged from a cylinder hole; when the plunger (105) is in an oil inlet section, the cylinder hole window (101) in communication with the plunger (105) is in communication with the oil inlet window (102) by means of the flow distribution window (301), and the oil enters the cylinder hole; and the flow distribution window (301), the oil inlet window (102) and the oil outlet window (103) on the flow distribution surfaces are all on a belt of the cylinder hole window (101) such that the width of a flow distribution belt can be effectively reduced to make the structure of a flow distributor more compact, and without increasing the width of the flow distribution belt, the variable displacement of the hydraulic motor can further be realized by disconnecting the oil inlet channel of part of the oil inlet window (102).
Inventors:
YANG JIAN (CN)
Application Number:
PCT/CN2021/076639
Publication Date:
August 19, 2021
Filing Date:
February 14, 2021
Export Citation:
Assignee:
YANG JIAN (CN)
International Classes:
F03C1/047; F03C1/32
Domestic Patent References:
| WO2011025408A1 | 2011-03-03 | |||
| WO2012010261A2 | 2012-01-26 |
Foreign References:
| CN211623627U | 2020-10-02 | |||
| CN211598918U | 2020-09-29 | |||
| CN208010509U | 2018-10-26 | |||
| CN110541788A | 2019-12-06 | |||
| DE102013219843A1 | 2014-08-28 | |||
| CN1740557A | 2006-03-01 |
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