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Diaphragm pump and method of operation thereof

A diaphragm pump and flexible diaphragm technology, applied in the field of hydraulically actuated diaphragm pumps, can solve the problems of inefficiency and cost

Inactive Publication Date: 2018-01-19
INGERSOLL RAND IND U S INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While effective, air operated diaphragm pumps utilizing compressed air can also be very inefficient and therefore very expensive

Method used

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  • Diaphragm pump and method of operation thereof
  • Diaphragm pump and method of operation thereof
  • Diaphragm pump and method of operation thereof

Examples

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Embodiment Construction

[0017] While the inventive concept is capable of various modifications and alternative forms, specific exemplary embodiments of the invention have been shown by way of example in the drawings and will be described in detail. It should be understood, however, that there is no intention to limit the inventive concepts to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

[0018] now refer to figure 1 , showing a diaphragm pump 10 . figure 1 The pump 10 at figure 2 is illustratively embodied as a pneumatically actuated double diaphragm pump. It is contemplated that in other embodiments, pump 10 may embody any other type of diaphragm pump. In the illustrative embodiment, pump 10 has a housing 12 that defines a first working chamber 14 and a second working chamber 16 .

[0019] In an illustrative prior art embodiment, such as figure 2 As seen in...

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PUM

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Abstract

A diaphragm pump (100) comprising: a housing defining a first pumping chamber (114), a second pumping chamber (116), and a hydraulic fluid chamber (126,128); a first flexible diaphragm (118) separating the first pumping chamber (114) from the hydraulic fluid chamber; a second flexible diaphragm (120) separating the second pumping chamber (116) from the hydraulic fluid chamber; a rod (130) mechanically linking the first flexible diaphragm (118) and the second flexible diaphragm (120) such that an expansion of one of the first and second flexible diaphragms exerts a contraction force on the other of the first and second flexible diaphragms; and a piston (172) disposed within the hydraulic fluid chamber and configured to reciprocate to cause a hydraulic fluid contained within the hydraulic fluid chamber to alternately exert an expansion force on the first and second flexible diaphragms.

Description

technical field [0001] The present invention relates generally to diaphragm pumps and more particularly to hydraulically actuated diaphragm pumps. Background technique [0002] Air operated diaphragm pumps have been used to pump one or more fluids. Air-operated diaphragm pumps generally comprise at least one pump chamber with a diaphragm for separating a motive fluid chamber for moving a motive fluid from a pump chamber for pumping a working fluid. Compressed air is fed into the motive fluid chamber to expand the diaphragm, which in turn causes working fluid to be pumped through the outlet of the pump chamber. While effective, pneumatic diaphragm pumps utilizing compressed air can also be very inefficient and therefore very expensive. Contents of the invention [0003] According to one aspect, a diaphragm pump may include: a housing defining a first pump chamber, a second pump chamber and a hydraulic fluid chamber; a first flexible diaphragm separating the first pump cha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B43/04F04B43/06F04B49/10
CPCF04B9/045F04B43/026F04B43/067F04B49/065F04B2201/0206F04B2201/1202F04B2203/0201
Inventor 瓦伦·A·塞斯艾伦·M·克雷申蒂
Owner INGERSOLL RAND IND U S INC