Reciprocating piston type compressor improved to distribute lubricating oil sufficiently during the starting phase of its operation
US5772407A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 23, 1996 |
| Grant date | Jun 30, 1998 |
| Priority date | — |
| Expiry date | Apr 23, 2016 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B27/109
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A reciprocating piston type compressor for compressing refrigerant gas includes a plurality of pistons slidably provided within cylinder bores for reciprocation. A pair of housings are mounted to the either ends of the cylinder block with valve plates therebetween. The housings include at least a refrigerant gas suction chamber which is fluidly connected to the cylinder bores. An oil sump is provided for containing lubricating oil. An oil pump is provided for distributing the lubricating oil to the compressor elements. The oil pump includes oil suction which is fluidly connected to the oil sump through a oil suction passage. The pressure in the refrigerant gas suction chamber is introduced into the oil suction chamber to direct the lubricating oil into the oil suction chamber from the oil sump during the initial stage of the starting of the compressor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.