The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 21, 2000
Filed:
Mar. 20, 1998
Holger Knaust, Arnbach, DE;
Knorr-Bremse, Munich, DE;
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.