Compressor and method for producing compressor

• US 9,841,024 B2
• Filed: 10/03/2014
• Issued: 12/12/2017
• Est. Priority Date: 10/29/2013
• Status: Active Grant

• Current Assignee: Daikin Industries Ltd
• Original Assignee: Daikin Industries Ltd
• Inventors: Hayashi, Takeo, Hiraoka, Yasuto, Miyata, Seio, Sekida, Naoto, Ishiodori, Yoshinobu, Tanaka, Kouji
• Primary Examiner(s): LETTMAN, BRYAN MATTHEW
• Application Number:
  US15/032,594
• Publication Number:
  US 20160273537A1
• Time in Patent Office: 1,166 Days
• CPC Class Codes: F01C 21/10 Outer members for co-operation with rotary pistons; Casings casings for rotary engines or machines in general F16M
• CPC Class Codes: F04B 39/123 Fluid connections
• CPC Class Codes: F04B 39/14 Provisions for readily assembling or disassembling
• CPC Class Codes: F04C 18/356 with vanes reciprocating with respect to the outer member
• CPC Class Codes: F04C 18/3564 the surfaces of the inner and outer member, forming the working space, being surfaces of revolution
• CPC Class Codes: F04C 2230/60 Assembly methods
• CPC Class Codes: F04C 2240/30 Casings or housings
• CPC Class Codes: F04C 2240/40 Electric motor
• CPC Class Codes: F04C 2240/806 Pipes for fluids; Fittings therefor
• CPC Class Codes: F04C 23/008 Hermetic pumps
• CPC Class Codes: F04C 29/0085 Prime movers
• CPC Class Codes: F04C 29/065 Noise dampening volumes, e.g. muffler chambers
• CPC Class Codes: F04C 29/12 Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet

Abstract

A compressor includes compression and drive mechanisms disposed in a casing having a cylindrical member. The compression mechanism includes a cylinder main body, an end surface member attached to the cylinder main body, a muffler main body attached to the end surface member, an intake hole communicating with the compression chamber and extending in a direction crossing the drive shaft, and a circular hole located radially outside the compression chamber and extending in a direction parallel to the drive shaft. The circular hole opens to a space inside the casing. At least a part of the circular hole is located within an area defined by extending the intake hole in a plan view. A method of producing a compressor includes inserting a positioning pin into the circular hole of the compression mechanism and pressing an inlet tube into the intake hole from outside of the cylindrical member.

Claims

1. A compressor comprising:

a compression mechanism; and

a drive mechanism,

the compression mechanism and the drive mechanism being disposed in a casing including a cylindrical member,

the drive mechanism including

a stator fixed to an inner circumferential surface of the cylindrical member, and

a rotor disposed inside the stator, the rotor being configured to rotate with a drive shaft,

the compression mechanism including

a cylinder main body having a compression chamber in which a roller driven by the drive shaft is disposed,

an end surface member attached to an end surface of the cylinder main body,

a muffler main body attached to the end surface member,

an intake hole communicating with the compression chamber and extending in a direction crossing the drive shaft, and

a circular hole located radially outside the compression chamber and extending in a direction parallel to the drive shaft,

the circular hole opening, outside the muffler main body, to a space inside the casing, and at least a part of the circular hole being located within an area defined by an imaginary extension of the intake hole through the drive shaft when viewed from an axial end of the drive shaft, and

the circular hole being located, in the cylinder main body, radially outside the end surface member and the muffler main body so that the circular hole is visible when viewed from a compression mechanism end of the stator.

2. The compressor according to claim 1, wherein

the intake hole and the circular hole are located in a single member.

3. The compressor according to claim 1, wherein

a center of the circular hole is located within the area defined by the imaginary extension of the intake hole through the drive shaft when viewed along the axial direction of the drive shaft.

4. The compressor according to claim 2, wherein

a center of the circular hole is located within the area defined by the imaginary extension of the intake hole through the drive shaft when viewed along the axial direction of the drive shaft.