Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Swash plate of a swash plate type compressor and the swash plate type compressor

a compressor and swash plate technology, applied in the direction of oblique crank gearings, positive displacement liquid engines, gearings, etc., can solve the problems of reducing the flatness of the swash plate, forming a metal spray coating layer of copper, etc., and achieve good surface flatness and uniform thickness. , good surface flatness

Inactive Publication Date: 2010-12-16
NTN CORP
View PDF16 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides a swash plate for a compressor that does not require a metal spray coating layer, which can lower the flatness of the swash plate and decrease its stability. The swash plate comprises a substrate formed by pressing a rolled steel into a disk shape, with sliding surfaces on both sides of the substrate. The substrate has a high surface flatness, which prevents peeling of the low-friction resin coating layers. The low-friction resin coating layers contain fluororesin and are formed by grinding the surfaces of the substrate. The swash plate is mounted directly to a rotary shaft or indirectly through a coupling member. The invention provides a cost-effective solution for providing a swash plate with stable boundary lubrication and friction / wear properties.

Problems solved by technology

As stated above, it is costly to form a metal spray coating layer of a copper type or aluminum type material on the surface of the substrate as an intermediate layer.
Also, such a metal spray coating layer tends to lower the flatness of the swash plate.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Swash plate of a swash plate type compressor and the swash plate type compressor
  • Swash plate of a swash plate type compressor and the swash plate type compressor
  • Swash plate of a swash plate type compressor and the swash plate type compressor

Examples

Experimental program
Comparison scheme
Effect test

examples

Examples of the Invention

[0057]In each example of the invention, the substrate 3a of the swash plate 3 was formed as follows: A steel sheet SAPH440C was formed into a disk shape by pressing, and roughly machined by a lathe to the thickness of 6.5 mm and a diameter of 90 mm. Both sides thereof were then ground using a two-head grinding machine (grinder: #80) so that the thickness of the substrate decreases to 6.36 mm. Table 1 shows the measured accuracy values after the respective steps.

[0058]The disk substrates thus formed were subjected to shot blasting to increase their surface roughness.

[0059]Then, a low-friction resin coating composition containing formula A as solid contents were applied by spray coating to both sides of the respective specimens thus formed so that their thicknesses are 30 μm on both sides after baking. After baking, final finish machining was carried out using a two-head grinding machine (grinder: #400 for resin) (to the thickness of 6.40 mm). Measured accurac...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
particle diameteraaaaaaaaaa
flatnessaaaaaaaaaa
Login to View More

Abstract

The object of the present invention is to provide a swash plate which fulfils the basic properties required for a swash plate, which are stable boundary lubricating state by lubricating oil, without forming a metal spray coating layer comprising a copper type or aluminum type material on the surface of the substrate 3a forming the swash plate 3 of the swash plate type compressor as an intermediate layer.The substrate 3a of the swash plate 3 comprises a disk-shaped steel sheet formed by pressing a rolled steel sheet into a disk shape, and both surfaces of the disk-shaped steel sheet is ground. Thus, resin coating layers 10 containing fluororesin, which has superior seizure resistance, can be strongly fixed to the substrate without the need to form a metal spray coating layer on the surface of the substrate. This improves the durability of the swash plate type compressor using carbon dioxide gas as a refrigerant.

Description

TECHNICAL FIELD[0001]The present invention relates to a swash plate of a swash plate type compressor used e.g. in an air-conditioner, and the swash plate type compressor.BACKGROUND ART[0002]A swash plate type compressor includes a swash plate mounted directly to a rotary shaft or indirectly to the rotary shaft through a coupling member so as to be oblique to or perpendicular to the rotary shaft in a housing in which a refrigerant exists, the swash plate being in sliding contact with shoes such that the rotary motion of the swash plate is converted to reciprocating motion of pistons through the shoes, thereby compressing and expanding the refrigerant. There are two types of such swash plate type compressors, one including two-head pistons and adapted to compressing and expanding the refrigerant on both sides of the pistons, and one including single-head pistons and adapted to compress and expand the refrigerant on one side only of the pistons. The shoes of some of swash plate type co...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(United States)
IPC IPC(8): F04B19/00F16H23/00
CPCF04B27/1054F05C2225/00F05C2253/12F05C2253/20B23P15/00F01B3/02Y10T29/49236F04B1/146B05D2350/38B05D5/083Y10T74/18336F04B25/04F04B27/0821F04B39/00
Inventor TANIGAWA, NAONARIOKI, YOSHIO
Owner NTN CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com