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Diaphragm pump

A diaphragm pump, diaphragm technology, applied in the direction of pumps, pump devices, pumps with flexible working elements, etc.

Active Publication Date: 2006-06-14
WANNER EGINEERING INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the ball check valve 32 prevents any discharge through the valve port, it is only vented around the piston and housing

Method used

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Embodiment Construction

[0045] The present invention is an improvement to the above-mentioned traditional diaphragm pump. The same parts are identified by the same reference numbers in all the figures. The improved parts will be distinguished and explained. It can be understood that improved components can lead to a synergistic improvement in pump performance and durability.

[0046] The problem of overfilling the transmission chamber 44 needs to be solved so that the diaphragm 34 does not expand to the point of rupture during the power stroke.

[0047] Such as Figure 5 As shown, one possibility according to the present invention is to eliminate the biasing spring 96 and introduce a mechanical stop 160 for the spool valve 84. By limiting the stroke of the spool valve 84, the stroke or expansion of the diaphragm 34 is also limited. That is, as a result of the spool valve 84 being blocked by the mechanical stop 106, the stroke of the entire plunger 42 and the diaphragm 34 during the power stroke is restri...

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PUM

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Abstract

A diaphragm pump which overcomes the problem of diaphragm failure due to overfill of the oil transfer chamber. An overfill preventive element in the form of a mechanical stop, a fully closed coil spring, or a valve system, or alternatives are provided.

Description

[0001] This application is a PCT international application filed in the name of Wanner Engineering Co., Ltd. (Wanner Engineering, Inc.) on May 13, 2004. The company is an American company. This application requires the United States filed on May 6, 2003. Priority of patent application 10 / 439535. Technical field [0002] The present invention mainly relates to an improved diaphragm pump, and more particularly to an improved diaphragm pump, which includes an anti-overfill element located on the hydraulic drive side of the diaphragm. Background technique [0003] The known rotary working, oil-supported / driven diaphragm pump is a high-pressure pump capable of pumping many different liquids, because in the process fluid, it has no sliding pistons or seals that will damage. The diaphragm completely isolates the pump from the surrounding environment (process fluid), thereby protecting the pump from impurities. [0004] A diaphragm pump 20 is shown in its entirety in FIG. 1. The pump 20 d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B41/00F04B43/067F04B43/073
CPCF04B43/067F04B43/073
Inventor K·E·莱哈克R·D·亨布里
Owner WANNER EGINEERING INC