Variable displacement wobble plate type compressor with wobble angle control unit
US4685866A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 28, 1986 |
| Grant date | Aug 11, 1987 |
| Priority date | — |
| Expiry date | Apr 28, 2006 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B2027/1895
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A variable displacement wobble plate type compressor with a variable angle non-rotary wobble plate, having a suction chamber for refrigerant before compression, a discharge chamber for refrigerant after compression, suction and discharge cylinder bores, pistons reciprocating in the cylinder bores, a crankcase receiving therein a drive and a wobble plate mechanism mounted about a drive shaft connectable to a rotary drive source, i.e., a vehicle engine, connected to the pistons to cause reciprocating motion of the pistons and capable of changing the wobble angle thereof, a first passageway for communicating the crankcase interior chamber with the discharge chamber, a control valve unit for closing and opening the first passageway, a second passageway for constantly communicating the crankcase interior chamber with the suction chamber to enable a constant extraction of the refrigerant from the crankcase interior chamber into the suction chamber, and a third passageway providing an additional fluid communication between the crankcase interior chamber and the suction chamber in accordance with a decrease in the wobbling angle of the drive and wobble plates, thereby permitting an additio…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.