Sealed compressor with easy to assemble oil pump
US8449272B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 14, 2010 |
| Grant date | May 28, 2013 |
| Priority date | — |
| Expiry date | Aug 20, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04C2240/30
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A sealed compressor has a lower end cap secured to a center shell, and defines a sealed chamber. An electric motor is received within the sealed chamber. The electric motor drives a shaft that drives a compressor pump unit. A lower bearing housing includes a bearing for supporting the shaft, and an oil pump. The oil pump includes a pump housing including one of a slot and a leg, with the bearing housing including the other of a slot and a leg. The leg is received in the slot to position the pump housing within the bearing housing. The oil pump further includes a piston to be driven by the shaft to drive the lubricant from a sump in the sealed chamber upwardly into a passage in the shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.