Operation control method and device for a vehicle air conditioning compressor
US4474542A · kind A · utility
33Cited by
4References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 28, 1981 |
| Grant date | Oct 2, 1984 |
| Priority date | — |
| Expiry date | Aug 28, 2001 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05D23/24
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An automobile air conditioner unit is provided with a compressor equipped with a number of compression chambers. At the start of air conditioner operation, less than all of these compression chambers are operated to avoid liquid compression. After start up, the number of compression chambers in operation will depend upon the air conditioning load, with a fewer number of chambers being operable at times when the load is low, as during temperature maintainance, as opposed to initial cool-down.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.