Title:
SCREW COMPRESSOR AND REFRIGERATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/188988
Kind Code:
A1
Abstract:
Gates (52) each have a first seal line (55) and a second seal line (56). The first seal line (55) and the second seal line (56) are each asymmetric with respect to a first virtual straight line (L1) that passes through the rotation center (O) of a gate rotor (51) and a first intermediate position (A) between the first seal line (55) and the second seal line (56) at a distal end side of the gate (52). Spiral grooves (40) each have a shape corresponding to the respective gates (52).
Inventors:
OKADA TADASHI (JP)
Application Number:
PCT/JP2023/005938
Publication Date:
October 05, 2023
Filing Date:
February 20, 2023
Export Citation:
Assignee:
DAIKIN IND LTD (JP)
International Classes:
F04C29/00; F04C18/52
Domestic Patent References:
| WO2009028127A1 | 2009-03-05 | |||
| WO2008062672A1 | 2008-05-29 |
Foreign References:
| JP2001153074A | 2001-06-05 | |||
| JP2021142592A | 2021-09-24 | |||
| JP2021162021A | 2021-10-11 | |||
| JP2010196582A | 2010-09-09 |
Attorney, Agent or Firm:
MAEDA & PARTNERS (JP)
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