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Pump with adjustable displacement

A pump casing and control panel technology, which is applied in the direction of pumps, pump control, pump components, etc., can solve the problems of large flow and pressure pulsation, high noise, and invariable displacement, so as to reduce flow pulsation and noise and expand the scope of application , The effect of low manufacturing cost

Inactive Publication Date: 2021-05-07
任林赟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the gear pump also has the following disadvantages: large flow and pressure pulsation, high noise, low efficiency at high temperature, and invariable displacement, etc.
Among them, the invariable displacement greatly limits the application range of gear pumps.

Method used

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  • Pump with adjustable displacement
  • Pump with adjustable displacement
  • Pump with adjustable displacement

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Embodiment Construction

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0029] It should be noted that when a component is said to be "mounted on" another component, it may be directly on the other component or there may be an intervening component. When a component is said to be "set on" another component, it may be set directly on the other component or there may be an intervening component at the same time. When a component is said to be "fixed" to another component, it may be directly fixed to the other component or there may ...

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PUM

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Abstract

The invention relates to a pump with the adjustable displacement. The pump with the adjustable displacement comprises a pump shell, a double-gear ring, a driving gear, a half-moon valve, a first driven gear and a second driven gear. The pump has the advantages that by arranging the half-moon valve, the driving gear, the first driven gear, the second driven gear, the double-gear ring and a regulation and control plate, the driving gear meshes with an inner gear ring of the double-gear ring, an outer gear ring of the double-gear ring meshes with the first driven gear and the second driven gear, a first oil outlet cavity, a second oil outlet cavity and a third oil outlet cavity can be correspondingly controlled to communicate with an oil inlet or an oil outlet by controlling the regulation and control plate, so that multi-stage displacement change can be realized, variable quantity is realized, the application range of the pump is expanded, and the structure is simple and reasonable, the manufacturing cost is low, and the flow pulsation and noise can be remarkably reduced due to the fact that the multiple gears mesh to output the flow.

Description

technical field [0001] The invention relates to the field of pumps, in particular to a pump with adjustable displacement. Background technique [0002] The gear pump is a rotary pump that relies on the change and movement of the working volume formed between the pump cylinder and the meshing gear to deliver or pressurize the liquid. Two closed spaces are composed of two gears, the pump body and the front and rear covers. When the gears rotate, the volume of the space on the side where the gears are disengaged increases from small to large, forming a vacuum to suck the liquid, and the volume of the space on the side where the gears mesh changes from large to large. It is small, and the liquid is squeezed into the pipeline; its advantages are: simple structure, small size, light weight, few parts, good workmanship, easy manufacture, convenient maintenance, low price, good self-priming performance; pollution to oil Insensitive, it is not easy to be seized or stuck in the worki...

Claims

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Application Information

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IPC IPC(8): F04C2/18F04C15/00F04C15/06F04C14/10
CPCF04C2/18F04C15/00F04C15/06F04C14/10F04C2240/30F04C2240/811
Inventor 任林赟赵爱红
Owner 任林赟