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Radial piston-type hydraulic motor with cylinder block cooling

A technology of hydraulic motor and cylinder block, applied in the field of hydraulic motor, can solve problems such as high risk of overheating

Inactive Publication Date: 2008-10-29
POCLAIN HYDRAULICS IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Unfortunately, in these solutions, only one or more of the outer surfaces of the cylinder block are effectively cooled, while the more central parts of the cylinder block (especially in the vicinity of the above-mentioned radial planes) tend to be overheated still very risky

Method used

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  • Radial piston-type hydraulic motor with cylinder block cooling
  • Radial piston-type hydraulic motor with cylinder block cooling
  • Radial piston-type hydraulic motor with cylinder block cooling

Examples

Experimental program
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Embodiment Construction

[0040] figure 1 The hydraulic motor shown has a housing comprising three parts 1A, 1B and 1C. A cylinder block 10 including a plurality of cylinders 12 in which pistons 14 are slidably mounted is provided in the housing. The motor is a motor with a radial piston, and the cylinder is arranged at a certain angle in the radial direction around a rotation axis A, and the cylinder body and the outer casing rotate relative to each other around the rotation axis A.

[0041] In this example, the housing is fixed and the cylinder block moves, and as the cylinder block rotates, it rotates to drive the output shaft 16 , which is constrained by slots 17 to rotate with the cylinder block. Said rotation relative to the housing is supported by bearings 18 . Also provided in the housing is a fluid distributor 20 which is fastened to the housing by stud and notch arrangement 22 and is prevented from rotating relative to the housing. The distributor is provided with distribution conduits 24 ...

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PUM

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Abstract

The invention concerns a radial piston-type motor whereof the cylinder block comprises scavenging holes (40) which are provided between consecutive cylinders and are open on at least one of the peripheral surfaces of the cylinder block (10A, 10B, 10C), each scavenging hole extending at least partly in the vicinity of the radial plane of the cylinder wherein is measured the diameter of a cylinder adjacent the hole concerned and in the radial space of said cylinder, such that the fluid contained in the crankcase may flow into the scavenging hole (40) in the vicinity of said cylinder to promote cooling of the wall thereof in a zone passing through said radial plane.

Description

technical field [0001] The present invention relates to a hydraulic motor with radial pistons, comprising: a housing; a cylinder block disposed in the housing so that the housing and the cylinder block are adapted to rotate relative to each other about an axis of rotation, and having a motor extending radially with respect to the axis of rotation. a plurality of cylinders in which pistons are slidably mounted; reaction cams for the pistons; and a fluid distributor constrained to rotate with the cams about said axis of rotation and provided with means adapted to supply The pipe or discharge pipe is connected to the distribution pipe of the cylinder. [0002] More specifically, the invention relates to cooling the cylinder block of this type of motor. When the motor is running, various areas of the motor heat up, and if this heating is not controlled, it can adversely affect the power transmission of the motor and can even damage certain components. Background technique [0...

Claims

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Application Information

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IPC IPC(8): F03C1/04F04B1/04F04B1/107
CPCF03C1/0415F04B1/0421F04B1/1071
Inventor 安特·博日奇马里耶勒·勒盖希勒斯·勒迈尔路易·比戈
Owner POCLAIN HYDRAULICS IND