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1. WO2011099308 - SCROLL COMPRESSOR

Publication Number WO/2011/099308
Publication Date 18.08.2011
International Application No. PCT/JP2011/000814
International Filing Date 14.02.2011
IPC
F04C 18/02 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
18Rotary-piston pumps specially adapted for elastic fluids
02of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
CPC
F04C 18/02
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS
18Rotary-piston pumps specially adapted for elastic fluids
02of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
F04C 18/0215
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS
18Rotary-piston pumps specially adapted for elastic fluids
02of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
0207both members having co-operating elements in spiral form
0215where only one member is moving
F04C 18/0253
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS
18Rotary-piston pumps specially adapted for elastic fluids
02of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
0207both members having co-operating elements in spiral form
0246Details concerning the involute wraps or their base, e.g. geometry
0253Details concerning the base
F04C 18/0276
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS
18Rotary-piston pumps specially adapted for elastic fluids
02of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
0207both members having co-operating elements in spiral form
0246Details concerning the involute wraps or their base, e.g. geometry
0269Details concerning the involute wraps
0276Different wall heights
F04C 2270/17
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS
2270Control; Monitoring or safety arrangements
17Tolerance; Play; Gap
F04C 23/008
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS
23Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
008Hermetic pumps
Applicants
  • ダイキン工業株式会社 DAIKIN INDUSTRIES, LTD. [JP]/[JP] (AllExceptUS)
  • 中村壮一 NAKAMURA, Souichi [JP]/[JP] (UsOnly)
  • 城村周一 JOUMURA, Shuuichi [JP]/[JP] (UsOnly)
  • 永原顕治 NAGAHARA, Kenji [JP]/[JP] (UsOnly)
  • 北浦洋 KITAURA, Hiroshi [JP]/[JP] (UsOnly)
Inventors
  • 中村壮一 NAKAMURA, Souichi
  • 城村周一 JOUMURA, Shuuichi
  • 永原顕治 NAGAHARA, Kenji
  • 北浦洋 KITAURA, Hiroshi
Agents
  • 前田弘 MAEDA, Hiroshi
Priority Data
2010-03062415.02.2010JP
Publication Language Japanese (ja)
Filing Language Japanese (JA)
Designated States
Title
(EN) SCROLL COMPRESSOR
(FR) COMPRESSEUR À SPIRALES
(JA) スクロール圧縮機
Abstract
(EN) An injection port (27) to communicate with a compression chamber (25) during a compressing operation is formed in a stationary scroll (30). Refrigerant oil separated from refrigerant discharged from a scroll compressor (10) is introduced from the injection port (27) to the compression chamber (25) together with gas refrigerant having an intermediate pressure. The portions of teeth bottom surfaces (31a, 41a) of the stationary scroll (30) and the rotary scroll (40) that face the compression chamber (25) communicating with the injection port (27) function as intermediate teeth bottom areas (36, 46). The portions of the teeth bottom surfaces that are closer to the outer peripheral side end portions of laps (32, 42) than the intermediate teeth bottom areas (36, 46) function as suction side teeth bottom areas (35, 45). Regarding the clearances between the teeth bottom surfaces (31a, 41a) and the tip surfaces (42a, 32a) of the laps (42, 32), the values of the clearances in the suction side teeth bottom areas (35, 45) are larger than those in the intermediate teeth bottom areas (36, 46).
(FR) L'invention concerne un orifice d'injection (27), destiné à communiquer avec une chambre de compression (25) au cours d'une opération de compression, qui est pratiqué dans une spirale fixe (30). Une huile réfrigérante séparée du réfrigérant évacué d'un compresseur à spirales (10) est introduite de l'orifice d'injection (27) à la chambre de compression (25) conjointement à un gaz réfrigérant ayant une pression intermédiaire. Les parties des surfaces inférieures de dents (31a, 41a) de la spirale fixe (30) et de la spirale mobile (40) qui sont situées en regard de la chambre de compression (25) communiquant avec l'orifice d'injection (27) servent de zones inférieures de dents intermédiaires (36, 46). Les parties des surfaces inférieures de dents qui se trouvent plus près des parties d'extrémité, côté périphérique extérieur, des parties en chevauchement (32, 42) que les zones inférieures de dents intermédiaires (36, 46) servent de zones inférieures de dents côté aspiration (35, 45). En ce qui concerne les jeux entre les surfaces inférieures de dents (31a, 41a) et les surfaces de bout (42a, 32a) des parties en chevauchement (32, 42), leurs valeurs dans les zones inférieures de dents côté aspiration (35, 45) sont plus grandes que dans les zones inférieures de dents intermédiaires (36, 46).
(JA)  固定スクロール(30)には、圧縮途中の圧縮室(25)に連通するインジェクションポート(27)が形成される。インジェクションポート(27)から圧縮室(25)へは、スクロール圧縮機(10)の吐出冷媒から分離された冷凍機油が、中間圧のガス冷媒と共に流入する。固定スクロール(30)と旋回スクロール(40)の歯底面(31a,41a)では、インジェクションポート(27)に連通する圧縮室(25)に臨む部分が中間歯底領域(36,46)となり、中間歯底領域(36,46)よりもラップ(32,42)の外周側端部寄りの部分が吸入側歯底領域(35,45)となる。そして、歯底面(31a,41a)とラップ(42,32)の先端面(42a,32a)とのクリアランスは、吸入側歯底領域(35,45)における値が中間歯底領域(36,46)における値よりも大きくなっている。
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