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Patent Searching and Data


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
Application Number:
JP2009000093601
Publication Date:
October 28, 2010
Filing Date:
April 08, 2009
Export Citation:
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Assignee:
DAIKIN IND LTD
International Classes:
F04C18/52; F04C27/00; F04C29/00
Attorney, Agent or Firm:
前田 弘
竹内 宏
嶋田 高久
竹内 祐二
今江 克実
二宮 克也
原田 智雄
井関 勝守
関 啓
杉浦 靖也