Connecting rod for hermetic compressor
US7437989B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 29, 2006 |
| Grant date | Oct 21, 2008 |
| Priority date | — |
| Expiry date | Jun 22, 2026 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C7/023
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A connecting rod for a hermetic compressor is provided. The connecting rod includes a piston connecting portion, a body having an end connected to the piston connecting portion, a crankshaft connecting portion connected to a different end of the body and extending a predetermined length so that a curved surface is formed, an inner peripheral surface of the crankshaft connecting portion making surface contact with an outer peripheral surface of a sleeve fitted to an off-center pin of a crankshaft, and a clamp fastened to both ends of the crankshaft connecting portion and exerting elastic force to retain the sleeve on the inner peripheral surface of the crankshaft connecting portion. The sleeve does not deform, even when retained on the crankshaft connecting portion, and makes uniform surface contact with the off-center pin, which is inserted into the sleeve. This substantially reduces the abrasion of the sleeve and the off-center pin and improves the compressor's efficiency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.