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Integral piston with embedded blades and its manufacture

A mosaic and piston technology, which is applied in the direction of rotary piston pumps, rotary piston machines, liquid fuel engines, etc., can solve the problems of difficult processing of piston 6, high processing cost, and high scrap rate, so as to improve the processing technology and reduce the Effects of Manufacturing Tooling Costs and Scrap Rates

Inactive Publication Date: 2003-06-04
SHANGHAI HITACHI ELECTRICAL APPLIANCES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the vane 4 and the piston 6 are integrated, the outer circle of the piston 6 and the two sides of the vane 4 are relatively difficult to process, which has the disadvantages of very poor overall processing technology, high rejection rate, and high processing cost.

Method used

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  • Integral piston with embedded blades and its manufacture
  • Integral piston with embedded blades and its manufacture
  • Integral piston with embedded blades and its manufacture

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] There is a T-shaped through groove 61 on one side of the piston 6, the shape of the tail of the vane 4 matches the T-shaped groove on the piston 6, and an interference fit is adopted at the matching part, such as figure 2 shown.

Embodiment 2

[0018] The interference fit structure of the dovetail groove is adopted at the matching part of the piston 6 and the vane 4, such as image 3 shown.

Embodiment 3

[0020] The matching parts of the piston 6 and the vane 4 adopt the interference fit structure of the large circular hole groove, such as Figure 4 shown.

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PUM

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Abstract

The present invention is integral piston with embedded blade and its manufacture. The integral piston includes blade and piston, which are mounted via interference embedding, that is, interference fitted via slot with narrow opening in the piston and blade tail matching the slot. The manufacture process includes finish mechining the outer circle of the piston and the two side faces of the blade, interference embedding, and integrally finish machining the two ends and inner hole of the piston. The present invention has improved machinability of integral piston, low cost and high quality, and provides condition for selecting different material and machining process of the piston and the blade.

Description

[0001] Technical Field: The present invention relates to a swing rotor compressor suitable for air conditioners, refrigerators and freezers, especially the improvement of the piston structure in the compressor and its manufacturing method. Background technique: [0002] The existing oscillating rotor compressor is mainly composed of cylinder 7, integrated piston, slider 12, eccentric shaft 8, motor 2 and other components, wherein the integrated piston is integrally processed by blades and pistons (see figure 1 , figure 2 ). The motor drives the integrated piston to swing along the inner wall of the cylinder 7 through the eccentric shaft 8 to complete the working cycle of gas suction-compression-discharge. The upper cylinder head 3, the cylinder 7, the integrated piston, the slider 12, and the lower cylinder head 5 form a working volume, and the blade 4 reciprocates and swings in the cylinder 7 through the support of the slider 12, and integrates the content of the cylinder i...

Claims

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Application Information

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IPC IPC(8): B23P15/10F04C2/00
Inventor 杨军刘春慧苏志军唐亚兵
Owner SHANGHAI HITACHI ELECTRICAL APPLIANCES CO LTD