Title:
ルーツ式流体機械
Document Type and Number:
Japanese Patent JP5370298
Kind Code:
B2
Abstract:
A roots type fluid machine includes a case having a side wall, a pair of rotary shafts provided in the case, a pair of rotors engaged with each other and fixed to the pair of rotary shafts so as to extend axially, respectively, a suction space formed by the case and the pair of rotors for introducing fluid, a discharge space formed by the case for discharging fluid and the pair of rotors and a transfer chamber formed by the case and the rotor. The rotor has a rotor end surface. A clearance is formed between the side wall and the rotor end surface. The transfer chamber transfers gas introduced in the suction space to the discharge space in accordance with the rotation of the pair of rotors. The case has a guide groove formed in the side wall facing the rotor end surface. Gas leaked from the discharge space into the clearance is introduced to the transfer chamber through the guide groove.
Inventors:
Yuzawa Izawa
Shinya Yamamoto
Takashi Ban
Takayuki Imai
Yamashita Katsumi
Hanaoka Yasunaka
Shinya Yamamoto
Takashi Ban
Takayuki Imai
Yamashita Katsumi
Hanaoka Yasunaka
Application Number:
JP2010159389A
Publication Date:
December 18, 2013
Filing Date:
July 14, 2010
Export Citation:
Assignee:
KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
International Classes:
F04C18/18; F04C25/02; F04C27/02
Domestic Patent References:
| JP63090690A | ||||
| JP2002221177A | ||||
| JP2004270545A |