Governor for air compressors of vehicles
US6038856A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 20, 1998 |
| Grant date | Mar 21, 2000 |
| Priority date | — |
| Expiry date | Mar 20, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05D16/166
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A governor for air compressors of vehicles, that serves to control additional devices, especially energy-saving devices. From an inlet connection supplied from the compressed air supply, a pilot valve designed as a round slide valve with a small cross section is controlled. The pilot valve monitors the supply of compressed air to a switching piston for a double valve with a large cross section. The double valve is supplied with compressed air from the inlet connection and causes an outlet connection connected with the additional device to be charged with air or cut off from the air. The switching piston is connected with a valve tube of the round slide valve in such fashion that this valve, during switching processes, is moved in a direction opposite to that of regulating piston of the pilot valve, so that a precise switching of the governor that reflects the pressure differential is achieved at the upper and lower pressure limits. The governor permits rapid and complete switching of the additional devices, regardless of their compressed air requirements for switching and of any leaks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.