Pump body assembly, fluid machine and heat exchange equipment

A component and pump body technology, which is applied in the direction of mechanical equipment, pump components, liquid fuel engines, etc., can solve the problems of easy eccentric rotation of the piston sleeve and affect the working efficiency of the pump body components, etc., and achieve the goal of improving operation reliability and performance Effect

Pending Publication Date: 2018-11-30
GREE ELECTRIC APPLIANCES INC OF ZHUHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The main purpose of the present invention is to provide a pump body assembly, fluid machinery and heat exchange equipment to solve the problem in the prior art that the piston sleeve of the pump body assembly is prone to eccentric rotation and affects the working efficiency of the pump body assembly

Method used

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  • Pump body assembly, fluid machine and heat exchange equipment
  • Pump body assembly, fluid machine and heat exchange equipment
  • Pump body assembly, fluid machine and heat exchange equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0078] The difference between the pump body assembly in the second embodiment and the first embodiment lies in that the structures of the structural parts are different.

[0079] Such as Figure 5 to Figure 7 As shown, at least two structural parts include a lower flange 12 and a lower limiting plate 13, the lower limiting plate 13 and the lower flange 12 are located below the cylinder 20, and the lower limiting plate 13 is located between the cylinder 20 and the lower flange 12 , the limit protrusion 43 and the lower limit plate 13 limit stoppers to prevent the radial displacement of the piston sleeve 40 relative to the lower limit plate 13 .

[0080] Such as Figure 5 to Figure 7 As shown, the limiting protrusion 43 extends into the central hole of the lower limiting plate 13 , and is limitedly engaged with the inner surface of the central hole of the lower limiting plate 13 . In this way, during the operation of the pump body assembly, the hole wall of the central hole of...

Embodiment 3

[0084] The difference between the pump body assembly in the third embodiment and the second embodiment is that the structure of the lower limiting plate 13 is different.

[0085] Such as Figure 8 to Figure 12 As shown, the surface of the lower limit plate 13 facing the piston sleeve 40 has a fourth limit groove 131, and the limit protrusion 43 extends into the fourth limit groove 131 and stops with the fourth limit groove 131. . In this way, during the operation of the pump body assembly, the outer surface of the limit protrusion 43 is limitedly matched with the groove wall of the fourth limit groove 131 to realize the limit of the radial direction of the piston sleeve 40 by the lower limit plate 13 , so that the operation of the piston sleeve 40 is more stable, and the operation reliability of the pump body assembly is improved.

[0086] Optionally, the fourth limiting groove 131 is an annular groove, and the annular groove is arranged coaxially with the central hole of th...

Embodiment 4

[0088] The difference between the pump body assembly in the fourth embodiment and the second embodiment is that the structures of the upper flange 11 and the piston sleeve 40 are different.

[0089] Such as Figure 13 to Figure 16 As shown, the lower end surface of the upper flange 11 has a limiting portion 112 extending toward the piston sleeve 40 , and the upper end of the piston sleeve 40 has a stepped surface 44 . Wherein, the step surface 44 is located at the end of the piston sleeve 40 facing the upper flange 11, and the limit portion 112 extends into the step surface 44 of the piston sleeve 40 to limit the stop of the step surface 44, so that the upper flange 11 is aligned with the piston sleeve. 40 limit support in the radial direction.

[0090] Optionally, the limiting part 112 is an annular structure, and the annular structure is eccentrically arranged with respect to the upper flange 11, and the eccentricity is e. The structure of the above structure is simple and...

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PUM

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Abstract

The invention provides a pump body assembly, a fluid machine and heat exchange equipment. The pump body assembly comprises two or more structure parts, a cylinder and a piston assembly, wherein the cylinder is positioned between the two structure parts; the piston assembly is arranged in the cylinder and comprises a piston sleeve and a piston arranged in the piston sleeve in a sliding manner; limiting bulges are arranged at the lower end surface of the piston sleeve; the piston sleeve are matched with the structure parts under the cylinder in a limiting manner by the limiting bulges so as to prevent the piston sleeve from displacing in the radial direction relatively to the structure parts. The pump body assembly, the fluid machine and the heat exchange equipment provided by the inventionhave the beneficial effect that the problem that the piston sleeve of the pump body assembly is easy to generate eccentric rotation so as to influence the working efficiency of the pump body assemblyin the prior art is effectively solved.

Description

technical field [0001] The invention relates to the technical field of pump body components, in particular to a pump body component, fluid machinery and heat exchange equipment. Background technique [0002] At present, during the operation of the pump body assembly, the piston sleeve is prone to eccentricity and tilt rotation, which causes the piston sleeve to easily rub against the cylinder and the piston, seriously affecting the working efficiency and performance of the pump body assembly. Contents of the invention [0003] The main purpose of the present invention is to provide a pump body assembly, fluid machinery and heat exchange equipment to solve the problem in the prior art that the piston sleeve of the pump body assembly is prone to eccentric rotation and affects the working efficiency of the pump body assembly. [0004] In order to achieve the above object, according to one aspect of the present invention, a pump body assembly is provided, including: at least t...

Claims

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Application Information

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IPC IPC(8): F04C18/00F04C29/00
CPCF04C18/00F04C29/00F04C2240/10F04C2240/20F04C2240/60F04C2240/80
Inventor 李直马利亚尚文海杜忠诚杨森张金圈梁社兵张荣婷史正良
Owner GREE ELECTRIC APPLIANCES INC OF ZHUHAI
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