Pump device and method of at least partially sealing a pump device
A pump device and partial technology, applied in the direction of pumps, rotary piston pumps, pumps with flexible working elements, etc., can solve problems such as damage to the pump ring, failure to ensure sealing, and failure to ensure the sealing of the pump device
Active Publication Date: 2022-05-27
EBM PAPST ST GEORGEN & -
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- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The problem here is that the axial insertion or movement of the separation chamber pin will also force the pump ring axially, which may damage the pump ring or cause an inconsistent stress ratio inside the pump ring
In this way the tightness cannot be guaranteed, or at least not for the lifetime of the pump unit
Method used
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Embodiment Construction
[0029] In all views, the same reference numerals are used to designate the same technical elements.
[0030] figure 1 A side cross-sectional view showing a portion of a conventional pump device 100 having a hydraulic housing 101, a pump ring carrier 103 disposed in the hydraulic housing 101, and an elastic pump ring 102 disposed therebetween. The pump device 100 is not necessarily a prior art, but is merely a problem to be solved by the present invention. During installation, the separation chamber pin 104 is inserted into the pump ring 102 in the axial direction, and its axial free end is pressed against the pump ring 102 in the axial and radial directions at the same time, so as to exert pressure on the inner wall surface of the hydraulic housing 101, Therein, the pump ring 102 will inevitably be damaged due to the axial force.
[0031] Figure 2a and Figure 2b A first embodiment variant of a part of the pump device 1 is shown in a sectional side view, with the radial d...
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The invention relates to a pump device for pumping liquid, comprising a hydraulic housing (2), a pump ring carrier (5) arranged in the hydraulic housing (2), radially (RR) arranged in the The elastic pump ring (3) between the pump ring carrier (5) and the hydraulic housing (2) and the separation chamber pin (4), wherein in order to produce an at least partial seal on the hydraulic housing (2) As a result, the pump ring (3) can be pressed against the inner wall surface of the hydraulic housing (2) by the separation chamber pin (4) in the radial direction (RR), and the hydraulic housing (2) ) has a radial offset section (6) along which a separate offset element formed on or cooperating with the separation chamber pin (4) can be offset The segment is introduced in the axial direction (AR) and thereby offsets the separation chamber pin (4) and the pump ring (3) in the radial direction.
Description
technical field [0001] The present invention relates to a pump device and a method for sealing said pump device at least partially, in particular on the inner wall of a hydraulic housing, using a separation chamber pin. Background technique [0002] Various types of pump arrangements are well known in the art. For example, the publication WO 2016 / 173800 A1 originating from the applicant discloses a corresponding pump device for pumping or delivering liquids, having a hydraulic housing, a pump ring carrier and a pump ring, the pump ring being The separation chamber pins of the parts” are offset in order to seal the pump chambers from each other, or to seal the suction side from the pressure side of the pump. The pump ring is also known in part in the industry as a "diaphragm". During installation, the separation chamber pin is pressed axially into the elastic pump ring and in the process displaces the pump ring with its free leading edge both axially and radially, the radia...
Claims
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IPC IPC(8): F01C5/02F04C5/00
CPCF01C5/02F04C5/00F04B43/02
Inventor A·库尔梅G·库纳特H·古德斯-哈梅尼赫M·施泰格D·豪尔
Owner EBM PAPST ST GEORGEN & -