Compressor

Patent metadata

Field	Value
Publication number	US-9651049-B2
Application number	US-201415033060-A
Country	US
Kind code	B2
Filing date	Oct 31, 2014
Priority date	Nov 1, 2013
Publication date	May 16, 2017
Grant date	May 16, 2017

Abstract

A compressor includes a member with a recess in which a reed discharge valve is disposed. The recess has a discharge hole, a fixation hole, and an annular projection formed around the discharge hole. The discharge valve includes a fixed portion, a flexible portion, and a head portion to open/close the annular projection. A protruding portion is formed at a rear end portion of the fixed portion. A first side surface of the protruding portion is designed to be substantially flush with a side surface of the fixed portion, which surface is closer to a center of the member. When the discharge valve rotates in a predetermined direction about the fixation hole after the discharge valve is disposed in the recess but before being fixed to the member, the first side surface of the protruding portion comes into contact with a side wall of the recess.

First claim

What is claimed is:

1. A compressor comprising:
a member disposed in proximity to a compression chamber and including a recess in which a reed discharge valve is disposed, the recess being on a surface of the member on an opposite side from the compression chamber,
the recess being provided with
a discharge hole communicating with the compression chamber,
a fixation hole used to fix the discharge valve, and
an annular projection formed around the discharge hole;

the discharge valve including
a fixed portion fixed to the member through the fixation hole,
a flexible portion extending from the fixed portion, and
a head portion located on a leading end side of the flexible portion and configured to open/close the annular projection,
the fixed portion including a protruding portion protruding, in a lengthwise direction of the discharge valve, with respect to a rear end portion of the fixed portion,
a first side surface of the protruding portion being designed to be substantially flush with an inner side surface of the fixed portion, the inner side surface of the fixed portion being closer to a center of the member than an outer side surface of the fixed portion; and

when the discharge valve rotates in a predetermined direction about the fixation hole after the discharge valve is disposed in the recess but before being fixed to the member, the first side surface of the protruding portion comes into contact with a side wall of the recess.

2. The compressor according to claim 1 , wherein
the protruding portion has a rectangular shape in a plan view.

3. The compressor according to claim 1 , wherein
the protruding portion is located in one of two areas of the discharge valve divided by a center line of the discharge valve.

4. The compressor according to claim 1 , wherein
a rear end of the outer side surface of the fixed portion is designed to be curved in a plan view, the outer side surface of the fixed portion being not substantially flush with the protruding portion.

5. The compressor according to claim 1 , wherein:
the discharge hole has an oval shape; and
a lengthwise direction of the discharge valve matches a longitudinal direction of the discharge hole.

6. The compressor according to claim 1 , wherein
the surface of the member on which the recess is formed faces a muffler space.

7. The compressor according to claim 1 , wherein
the recess is outlined along the rear end portion of the fixed portion; and
when the discharge valve rotates in a direction opposite to the predetermined direction about the fixation hole after the discharge valve is disposed in the recess but before being fixed to the member, a second side surface of the protruding portion comes into contact with the side wall of the recess.

8. The compressor according to claim 7 , wherein
the protruding portion has a rectangular shape in a plan view.

Assignees

• Daikin Ind Ltd

Inventors

• Hayashi Takeo
• Tomioka Naoto
• Komori Keiji
• Kamiishida Hiroki

Classifications

• F04C29/065

  Noise dampening volumes, e.g. muffler chambers · CPC title

• F04C23/008

  Hermetic pumps · CPC title

• F04C18/0215

  where only one member is moving · CPC title

• F04C18/322

  with vanes hinged to the outer member and reciprocating with respect to the outer member · CPC title

• F04C29/128 Primary

  of the elastic type, e.g. reed valves · CPC title