JPS55153871A - Radial type hydraulic pump-motor - Google Patents
Radial type hydraulic pump-motorInfo
- Publication number
- JPS55153871A JPS55153871A JP6134279A JP6134279A JPS55153871A JP S55153871 A JPS55153871 A JP S55153871A JP 6134279 A JP6134279 A JP 6134279A JP 6134279 A JP6134279 A JP 6134279A JP S55153871 A JPS55153871 A JP S55153871A
- Authority
- JP
- Japan
- Prior art keywords
- oil
- motor
- rotary shaft
- capacity
- slide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Reciprocating Pumps (AREA)
- Hydraulic Motors (AREA)
Abstract
PURPOSE: To vary the capacity of the oil-pressure pump-motor by the method wherein a rotor, together with a rotary shaft, is rotated, and at the same time, it is made to slide in the axial direction, and the amount of eccentricity of a cam is varied gradually in the axial direction, and thereby the piston stroke is changed steplessly.
CONSTITUTION: Rotor 4 is fastened to rotary shaft 6, so that it can rotate together with the rotary shaft and at the same time that it can slide in the axial direction, via spline 24. The cam surface between lines C and E of cam ring 2 is formed so that its distance from the center of rotary shaft 6 becomes larger toward the right in the drawing. When high-pressur oil flows into oil chamber 21 or 22, switching valve 5 compresses spring 30, causes rotor 4, thrust bearing 15 and disk 29 to slide to the right, and changes the position of displacement of ball 11 with respect to the cam surface of cam ring 2, and thereby the stroke of piston 10 becomes large and the capacity of the oil-pressure pump-motor increases. Consequently, when the input pressure of the oil-pressure pump-motor is increased, the capacity increases and a large torque can be obtained, and when the input pressure is decreased, the capacity decreases and a high speed can be obtained.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6134279A JPS55153871A (en) | 1979-05-18 | 1979-05-18 | Radial type hydraulic pump-motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6134279A JPS55153871A (en) | 1979-05-18 | 1979-05-18 | Radial type hydraulic pump-motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55153871A true JPS55153871A (en) | 1980-12-01 |
Family
ID=13168353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6134279A Pending JPS55153871A (en) | 1979-05-18 | 1979-05-18 | Radial type hydraulic pump-motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55153871A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5176511A (en) * | 1990-11-23 | 1993-01-05 | Poclain Hydraulics | Seal structure for a rotating cam pressurized fluid device |
| WO1998020255A1 (en) | 1996-11-01 | 1998-05-14 | Daikin Industries, Ltd. | Cam motor device |
-
1979
- 1979-05-18 JP JP6134279A patent/JPS55153871A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5176511A (en) * | 1990-11-23 | 1993-01-05 | Poclain Hydraulics | Seal structure for a rotating cam pressurized fluid device |
| WO1998020255A1 (en) | 1996-11-01 | 1998-05-14 | Daikin Industries, Ltd. | Cam motor device |
| US6050173A (en) * | 1996-11-01 | 2000-04-18 | Daikin Industries, Ltd. | Cam motor apparatus |
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