Title:
HERMETIC COMPRESSOR AND REFRIGERATION CYCLE APPARATUS
Document Type and Number:
WIPO Patent Application WO/2019/202976
Kind Code:
A1
Abstract:
Provided is a compressor with high compression efficiency provided by increasing the design freedom with respect to the position for connecting the introduction path and injection path of an injection flow path, improving manufacturability and suppressing the back flow of a refrigerant from a check valve of the injection flow path. An injection flow path (40) has an injection path (41) opened to a cylinder chamber (19), a communication path (42) connected to the injection path (41), and an introduction path (49) having one end side opened from the axial direction to the communication path (42), and the other end (54) to which an injection introduction pipe (70) connected to the outside of the sealed case is connected, and a check valve device (44) that opens and closes an opening (53) of the introduction path (49) on the communication path (42) side and blocks the flow of refrigerant from the cylinder chamber (19) to the introduction path (49). The check valve device (44) includes a reed valve (60), a valve retainer (64) that regulates the opening degree of the reed valve (60), and a fixing member (65) that fixes the reed valve (60) and the valve retainer (64).
Inventors:
HIRAYAMA TAKUYA (JP)
KIMURA SHIGEKI (JP)
KIMURA SHIGEKI (JP)
Application Number:
PCT/JP2019/014694
Publication Date:
October 24, 2019
Filing Date:
April 02, 2019
Export Citation:
Assignee:
TOSHIBA CARRIER CORP (JP)
International Classes:
F04C29/04; F04C18/356; F04C23/00; F04C29/12
Foreign References:
| JPS58148295A | 1983-09-03 | |||
| JPS5997291U | 1984-07-02 | |||
| JPS57160987U | 1982-10-08 | |||
| JPS62173585U | 1987-11-04 | |||
| JPS5760836B2 | 1982-12-21 |
Other References:
See also references of EP 3783225A4
Attorney, Agent or Firm:
TOKYO INTERNATIONAL PATENT FIRM (JP)
Download PDF: