Title:
SINGLE SCREW COMPRESSOR
Document Type and Number:
Japanese Patent JP2010242656
Kind Code:
A
Abstract:
To prevent leakage of a refrigerant between the spiral grooves of a screw rotor while preventing leakage of a high-pressure refrigerant into a bearing holder in a sealing portion between the screw rotor and the bearing holder.
The sealing portion is formed in such a manner that the end surface (49) of the delivery-side end (46) of the screw rotor (40) is brought into contact with the end surface of the bearing holder (60). On the end surface (49) of the screw rotor (40), multiple spiral grooves (4) are formed to generate high pressure on a peripheral side over the peripheral direction of the end surface.
Inventors:
FUJIWARA HIDEKI
UENO HIROMICHI
SHIKANO SHIGEHARU
UENO HIROMICHI
SHIKANO SHIGEHARU
Application Number:
JP2009093601A
Publication Date:
October 28, 2010
Filing Date:
April 08, 2009
Export Citation:
Assignee:
DAIKIN IND LTD
International Classes:
F04C18/52; F04C27/00; F04C29/00
Attorney, Agent or Firm:
Hiroshi Maeda
Hiroshi Takeuchi
Takahisa Shimada
Yuji Takeuchi
Katsumi Imae
Kazunari Ninomiya
Tomoo Harada
Iseki Katsumori
Seki Kei
Yasuya Sugiura
Hiroshi Takeuchi
Takahisa Shimada
Yuji Takeuchi
Katsumi Imae
Kazunari Ninomiya
Tomoo Harada
Iseki Katsumori
Seki Kei
Yasuya Sugiura
Previous Patent: BIRD EVACUATION SYSTEM AND WIND POWER GENERATOR
Next Patent: EXHAUST CIRCULATION CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE
Next Patent: EXHAUST CIRCULATION CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE