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:
Feb. 03, 2004
Filed:
Dec. 11, 2000
Christof Behmenburg, Lauenau, DE;
Helge Westerkamp, Hannover, DE;
Continental Aktiengesellschaft, Hannover, DE;
Abstract
The invention relates to a closed level control system for a vehicle. The closed level control system includes a pump which transfers a pressurized medium between a pressurized medium supply vessel ( ) and pressurized medium chambers ( to ). The input ( ) of the pump ( ) is connected to the supply vessel ( ) and the output ( ) of the pump ( ) is connected to the pressurized medium chambers ( to ) when the pressurized medium is to be pumped from the supply vessel ( ) into the pressurized medium chambers ( to ). If, in contrast, pressurized air is to be pumped from a pressurized medium chamber ( to ) into the supply vessel ( ), then the input ( ) of the pump ( ) is connected to the pressurized medium chamber and the output ( ) of the pump ( ) is connected to the supply vessel ( ). The above-mentioned connections preferably take place via controllable directional valves ( ). The level control system makes it possible that the pump ( ) has to always run only in one direction.