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a hydraulic device

A technology of a hydraulic device and a compression chamber, applied in the field of hydraulic devices, can solve the problems of expensive manufacturing of pistons, and achieve the effect of reducing manufacturing costs

Active Publication Date: 2021-08-17
INNAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Pistons are rather expensive to manufacture due to the precision of piston dimensions required

Method used

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  • a hydraulic device
  • a hydraulic device
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Embodiment Construction

[0025] figure 1 The internal parts of the hydraulic device 1 , such as a pump or a hydraulic motor, are shown, which are fitted in a housing 27 in a known manner. The hydraulic device 1 is provided with a shaft 2 supported by bearings 3 at both sides of a housing 27 and rotatable about a first axis 4 . An opening with a shaft seal 5 is provided on one side of the housing 27 in a known manner, so that the end of the shaft 2 provided with the toothed shaft end 6 protrudes from the housing 27 . If the hydraulic device 1 is a pump, a motor can be coupled to the toothed shaft end 6, and if the hydraulic device 1 is a motor, a driven tool can be coupled thereto.

[0026] The hydraulic device 1 comprises panels 7 mounted inside a housing 27 at a distance from each other. The panel 7 has a fixed position relative to the housing 27 in its direction of rotation. The shaft 2 extends through a central through hole of the panel 7 .

[0027] The shaft 2 is provided with a flange 8 exten...

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Abstract

A hydraulic device (1) comprising a housing (27), a shaft (2) installed in the housing (27) and rotatable around a first rotation axis (4), wherein the shaft (2) has a vertical A flange (8) extending on said first axis of rotation (4), further comprising a plurality of pistons (9) fixed to said flange (8) at equiangular distances around said first axis of rotation (4) ) and a plurality of cylindrical sleeves (10) that cooperate with the piston (9) to form compression chambers with different volumes. The sleeve (10) is rotatable about a second axis of rotation intersecting the first axis of rotation (4) at an acute angle such that upon rotation of the shaft (2) the volume of the compression chamber (11) changes. Each piston (9) has a piston head (14) comprising a spherical circumferential outer side. Each of said pistons (9) has a modular structure comprising a piston head member (14) forming said piston head, fixed to said flange (8) and fitted with said piston head member ( 14) and a spacer (26) located outside said piston pin (20) and sandwiched between said piston head member (14) and said flange (8).

Description

technical field [0001] The invention relates to a hydraulic device. Background technique [0002] Such a hydraulic device is known from WO 2006 / 083163. The shaft has a flange extending perpendicular to the first axis, and a plurality of pistons are secured to the flange at equiangular distances around the first axis. An equal number of cylindrical sleeves are supported by the barrel plate and rotate together with the barrel plate about a second axis at an angle relative to the first axis. Each piston is sealed directly to the inner wall of the corresponding cylindrical sleeve, ie without the use of piston rings. During rotation of the barrel plate, the cylindrical sleeve undergoes a combined translational and rotational motion around the piston. Accordingly, the outer circumference of each piston head is spherical. It should be noted that the spherical shape creates a sealing line between the piston and the cylindrical sleeve extending perpendicular to the centerline of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B1/20F04B1/22F04B1/2014F04B1/124F04B1/32
CPCF04B1/2007F04B1/2035F04B1/22F04B1/324F04B1/2014F04B53/14
Inventor 彼得·奥古斯丁努斯·约翰尼斯·阿赫滕
Owner INNAS