SCROLL COMPRESSOR AND AIR CONDITIONER USING SAME
Oil flowing from a rear pressure chamber to an intake chamber or a compression chamber via a rear pressure valve is sufficiently supplied not only to a lap tooth tip of a fixed scroll, but also to gaps between fixed scroll tooth bottoms and lap tooth tips of an orbiting scroll. A scroll compressor i...
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Format | Patent |
Language | English French Japanese |
Published |
11.12.2014
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Abstract | Oil flowing from a rear pressure chamber to an intake chamber or a compression chamber via a rear pressure valve is sufficiently supplied not only to a lap tooth tip of a fixed scroll, but also to gaps between fixed scroll tooth bottoms and lap tooth tips of an orbiting scroll. A scroll compressor is provided with a fixed scroll (7), an orbiting scroll (8) that forms an intake chamber (20) or a compression chamber by meshing with the fixed scroll and undergoing an orbiting motion, a rear pressure chamber (18) for applying pressure to the orbiting scroll toward the fixed scroll, a rear pressure valve (61) for adjusting the rear pressure of the rear pressure chamber, a rear pressure valve inflow channel (61a) for connecting an inlet side of the rear pressure valve and the rear pressure chamber, and a rear pressure valve outflow channel (61b) for connecting an outlet side of the rear pressure valve and either the intake chamber or the compression chamber. At least part of a flow channel outlet part (61g) leading to the intake chamber or compression chamber of the rear pressure valve outflow channel is formed nearer the tooth bottoms (7c) than the positions of the lap teeth tips of the fixed scroll.
Selon l'invention, une huile introduite depuis une chambre de contre-pression dans une chambre d'admission ou une chambre de compression via une soupape de contre-pression, alimente de manière suffisante non seulement un côté saillie d'enveloppement d'une spirale fixe, mais aussi un interstice entre un fond de spirale fixe et une saillie d'enveloppement d'une spirale rotative. Un compresseur à spirale est équipé : de la spirale fixe (7) ; de la spirale rotative (8) qui est emboîtée avec la spirale fixe, et qui forme la chambre d'admission (20) ou la chambre de compression par un mouvement rotatif ; de la chambre de contre-pression (18) conférant à la spirale rotative une force de pression côté spirale fixe ; de la soupape de contre-pression (61) destinée à ajuster la contre-pression de la chambre de contre-pression ; d'un trajet d'introduction de soupape de contre-pression (61a) qui met en communication un côté entrée de la soupape de contre-pression et ladite chambre de contre-pression; et d'un trajet de décharge de soupape de contre-pression (61b) qui met en communication un côté sortie de la soupape de contre-pression et la chambre d'admission ou la chambre de compression. Une partie sortie de trajet d'écoulement (61g) vers la chambre d'admission ou la chambre de compression dans ledit trajet de décharge de soupape de contre-pression, est formée au moins partiellement côté fond (7c) par rapport à la position de la saillie d'enveloppement de la spirale fixe. |
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AbstractList | Oil flowing from a rear pressure chamber to an intake chamber or a compression chamber via a rear pressure valve is sufficiently supplied not only to a lap tooth tip of a fixed scroll, but also to gaps between fixed scroll tooth bottoms and lap tooth tips of an orbiting scroll. A scroll compressor is provided with a fixed scroll (7), an orbiting scroll (8) that forms an intake chamber (20) or a compression chamber by meshing with the fixed scroll and undergoing an orbiting motion, a rear pressure chamber (18) for applying pressure to the orbiting scroll toward the fixed scroll, a rear pressure valve (61) for adjusting the rear pressure of the rear pressure chamber, a rear pressure valve inflow channel (61a) for connecting an inlet side of the rear pressure valve and the rear pressure chamber, and a rear pressure valve outflow channel (61b) for connecting an outlet side of the rear pressure valve and either the intake chamber or the compression chamber. At least part of a flow channel outlet part (61g) leading to the intake chamber or compression chamber of the rear pressure valve outflow channel is formed nearer the tooth bottoms (7c) than the positions of the lap teeth tips of the fixed scroll.
Selon l'invention, une huile introduite depuis une chambre de contre-pression dans une chambre d'admission ou une chambre de compression via une soupape de contre-pression, alimente de manière suffisante non seulement un côté saillie d'enveloppement d'une spirale fixe, mais aussi un interstice entre un fond de spirale fixe et une saillie d'enveloppement d'une spirale rotative. Un compresseur à spirale est équipé : de la spirale fixe (7) ; de la spirale rotative (8) qui est emboîtée avec la spirale fixe, et qui forme la chambre d'admission (20) ou la chambre de compression par un mouvement rotatif ; de la chambre de contre-pression (18) conférant à la spirale rotative une force de pression côté spirale fixe ; de la soupape de contre-pression (61) destinée à ajuster la contre-pression de la chambre de contre-pression ; d'un trajet d'introduction de soupape de contre-pression (61a) qui met en communication un côté entrée de la soupape de contre-pression et ladite chambre de contre-pression; et d'un trajet de décharge de soupape de contre-pression (61b) qui met en communication un côté sortie de la soupape de contre-pression et la chambre d'admission ou la chambre de compression. Une partie sortie de trajet d'écoulement (61g) vers la chambre d'admission ou la chambre de compression dans ledit trajet de décharge de soupape de contre-pression, est formée au moins partiellement côté fond (7c) par rapport à la position de la saillie d'enveloppement de la spirale fixe. |
Author | TSUCHIYA TAKESHI CHIKANO MASATSUGU YANAGASE YUICHI |
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DocumentTitleAlternate | COMPRESSEUR À SPIRALE, ET APPAREIL DE CONDITIONNEMENT D'AIR METTANT EN ŒUVRE CELUI-CI |
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RelatedCompanies | HITACHI APPLIANCES, INC |
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Snippet | Oil flowing from a rear pressure chamber to an intake chamber or a compression chamber via a rear pressure valve is sufficiently supplied not only to a lap... |
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SubjectTerms | BLASTING COMBINED HEATING AND REFRIGERATION SYSTEMS HEAT PUMP SYSTEMS HEATING LIGHTING LIQUEFACTION SOLIDIFICATION OF GASES MANUFACTURE OR STORAGE OF ICE MECHANICAL ENGINEERING POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS REFRIGERATION MACHINES, PLANTS OR SYSTEMS REFRIGERATION OR COOLING ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTMACHINES FOR LIQUIDS ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTPUMPS WEAPONS |
Title | SCROLL COMPRESSOR AND AIR CONDITIONER USING SAME |
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