US 6,644,946 B2Granted

Scroll type compressor

AssigneeKabushiki Kaisha Toyota Jidoshokki

InventorsYoshiyuki Nakane, Takahiro Moroi, Ryuta Kawaguchi, Tsutomu Nasuda

Life of this patent

Estimating the term…

Loading patent…

Abstract

A scroll type compressor has a housing, a drive shaft, a fixed scroll member, a movable scroll member, a suction port and a discharge port. The drive shaft is rotatably supported by the housing. The fixed scroll member is fixed to the housing. The movable scroll member is accommodated in the housing, and the faces the fixed scroll member. The housing and the fixed scroll member define a cooling region. The fixed scroll member and the movable scroll member define a compression region. The suction port introduces gas into the compressor. The discharge port discharges the gas. Heat resistant means is disposed at least between the cooling region and the compression region. Heat resistance of the heat resistant means adjacent to the outermost compression region is greater than that of the heat resistant means adjacent to the innermost compression region.

Claims10

Dependent claims

A scroll type compressor comprising:

a housing;
a drive shaft rotatably supported by the housing;
a fixed scroll member fixed to the housing, the housing and the fixed scroll member defining a cooling region;
a movable scroll member accommodated in the housing, facing the fixed scroll member, the fixed scroll member and the movable scroll member defining a compression region;
a suction port for introducing gas into the compressor;
a discharge port for discharging the gas;
wherein the gas introduced via the suction port is compressed in the compression region by orbiting the movable scroll member relative to the fixed scroll member by rotation of the drive shaft, and the compressed gas is discharged from the compression region via the discharge port;
a heat resistant means disposed at least between the cooling region and the compression region;
and
wherein heat resistance of the heat resistant means adjacent to the outermost compression region is greater than that of the heat resistant means adjacent to the innermost compression region.

7 more elements

Dependencies are inferred from the claim text.

Facts

Application: 10/054,112Filed 22 Jan 2002
Priority: JP 2001-01327222 Jan 2001
Published: US 2002/0110470 A115 Aug 2002
Granted: 11 Nov 2003
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

F04C 18/0215
Both members having co-operating elements in spiral form: where only one member is moving
F01C 17/063
Using cranks, universal joints or similar elements: with only rolling movement
F04C 18/0253
Details concerning the involute wraps or their base, e.g. geometry: details concerning the base
F04C 29/04
Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00: heating; Cooling ;…