US 2018/0320689 A1Published application

Scroll compressor

AssigneeHitachi-Johnson Controls Air Conditioning, Inc.

InventorsTakeshi KONO, Eri MORITA, Yuusuke UEHASHI

Life of this patent

Estimating the term…

Loading patent…

Abstract

A centering process and fastening bolt are not required for assembling a fixed scroll and an orbiting scroll of a scroll compressor that includes a hermetically sealed container and a compression mechanism. The fixed scroll includes a cylindrical portion formed in a circumferential direction on an outer circumferential side of the fixed wrap, a flange provided in the circumferential direction further outside of the cylindrical portion, and a first hole provided in the flange in an axial direction. The frame includes an inner circumferential surface, a flange provided in the circumferential direction further outside of the inner circumferential surface, and a second hole in the axial direction which is provided in a position of the flange opposite to the first hole. A knock pin is inserted in the first and second holes to prevent the frame and the fixed scroll from being displaced in the rotational direction.

Claims11

Dependent claims

A scroll compressor, comprising:

a hermetically sealed container;
and
a compression mechanism unit that is disposed in the hermetically sealed container and includes a frame, a fixed scroll having a fixed wrap, and an orbiting scroll having an orbiting wrap which is engaged with the fixed wrap, and disposed between the frame and the fixed scroll,
wherein the fixed scroll includes a cylindrical portion which is formed in a circumferential direction on an outer circumferential side of the fixed wrap, a flange which is provided in the circumferential direction further outside of the cylindrical portion, and a first hole which is provided in the flange in an axial direction,
the frame includes an inner circumferential surface into which the cylindrical portion of the fixed scroll is inserted and fitted, a flange which is provided in the circumferential direction further outside of the inner circumferential surface, and a second hole in the axial direction which is provided in a position of the flange opposite to the first hole, and
the scroll compressor further comprises:
a knock pin that is inserted in the first hole and the second hole to prevent the frame and the fixed scroll from being displaced in a rotational direction;
and
a fixing unit that fixes the frame and the fixed scroll to the hermetically sealed container.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/963,269Filed 26 Apr 2018
Priority: JP 2017-0923188 May 2017
Published: 8 Nov 2018
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

F04C 18/0215
Both members having co-operating elements in spiral form: where only one member is moving
F04C 23/008
Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping…:…
F04C 2230/603
Assembly methods: centering; Aligning
F04C 2240/30
Components: casings or housings

Family

US 10,890,183 B2Related patent
US 2018/0320689 A1This patent

From the US filing history. Foreign family members aren’t listed.

Timeline

Citations

Open elsewhere

Building an agent or pulling many patents? Use the API or MCP server instead of scraping pages. Get an API key