Patents by Inventor Guenther Fecht

Guenther Fecht has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9238392
    Abstract: An air suspension device for vehicles, in particular for commercial vehicles, including a valve block for aerating a plurality of air-spring bellows with compressed air from a compressed-air supply or for venting the air-spring bellows through an air vent, the valve block including at least one air-bellows valve assigned to an air-spring bellows or a group of air-spring bellows of the plurality of air-spring bellows, for individually aerating and venting this air-spring bellows or group of air-spring bellows. The present system provides for the valve block to additionally include a valve device, by which the at least one air-bellows valve may be simultaneously decoupled from the compressed-air supply and the air vent, and for a pressure sensor for measuring the air pressure in the flow path between the valve device and the at least one air-bellows valve to be provided on the other side of the corresponding air-spring bellows.
    Type: Grant
    Filed: August 5, 2013
    Date of Patent: January 19, 2016
    Assignee: KNORR-BREMSE SYSTEME FUER NUTZFAHRZEUGE GMBH
    Inventors: Winifried Geiger, Guenther Fecht
  • Publication number: 20130320646
    Abstract: An air suspension device for vehicles, in particular for commercial vehicles, including a valve block for aerating a plurality of air-spring bellows with compressed air from a compressed-air supply or for venting the air-spring bellows through an air vent, the valve block including at least one air-bellows valve assigned to an air-spring bellows or a group of air-spring bellows of the plurality of air-spring bellows, for individually aerating and venting this air-spring bellows or group of air-spring bellows. The present system provides for the valve block to additionally include a valve device, by which the at least one air-bellows valve may be simultaneously decoupled from the compressed-air supply and the air vent, and for a pressure sensor for measuring the air pressure in the flow path between the valve device and the at least one air-bellows valve to be provided on the other side of the corresponding air-spring bellows.
    Type: Application
    Filed: August 5, 2013
    Publication date: December 5, 2013
    Inventors: Winifried Geiger, Guenther Fecht
  • Patent number: 7568713
    Abstract: An air-suspension system for vehicles, in particular for commercial vehicles, including at least one air-bellows valve assigned to an air-spring bellows or a group of air-spring bellows of the front axle for individually aerating and venting this air-spring bellows or this group of air-spring bellows; at least one air-bellows valve assigned to an air-spring bellows or a group of air-spring bellows of the rear axle for individually aerating and venting this air-spring bellows or this group of air-spring bellows; as well as at least one central aeration valve for supplying the air-bellows valves assigned to the air-spring bellows of the front axle and the rear axle with compressed air from a compressed-air supply; and at least one central venting valve for exhausting compressed air from the air-bellows valves assigned to the air-spring bellows of the front axle and the rear axle, to an air vent.
    Type: Grant
    Filed: June 27, 2006
    Date of Patent: August 4, 2009
    Assignee: Knorr-Bremse Systeme für Nutzfahrzeuge GmbH
    Inventors: Falk Hecker, Guenther Fecht, Winfried Geiger, Friedbert Roether
  • Patent number: 7396029
    Abstract: An air-suspension device for vehicles, e.g., commercial vehicles, includes a valve block that is assigned to a rear axle and contains a central valve for aerating and venting air-spring bellows of the rear axle, and a valve block assigned to a front axle for aerating and venting air-spring bellows of the front axle. The central valve of the valve block assigned to the rear axle selectively connects: a) a compressed-air supply to the air-spring bellows of the rear axle and to a supply-pressure connection of the valve block assigned to the front axle; or b) the supply-pressure connection of the valve block assigned to the front axle and the air-spring bellows of the rear axle to an air vent. The valve block assigned to the front axle has a pneumatic pilot-operation connection for pneumatic-electric pilot operation.
    Type: Grant
    Filed: June 10, 2005
    Date of Patent: July 8, 2008
    Assignee: Knorr-Bremse Systeme fur Nutzfahrzeuge GmbH
    Inventors: Falk Hecker, Günther Fecht, Friedbert Röther, Winfried Geiger
  • Publication number: 20070085292
    Abstract: An air-suspension system for vehicles, in particular for commercial vehicles, including at least one air-bellows valve assigned to an air-spring bellows or a group of air-spring bellows of the front axle for individually aerating and venting this air-spring bellows or this group of air-spring bellows; at least one air-bellows valve assigned to an air-spring bellows or a group of air-spring bellows of the rear axle for individually aerating and venting this air-spring bellows or this group of air-spring bellows; as well as at least one central aeration valve for supplying the air-bellows valves assigned to the air-spring bellows of the front axle and the rear axle with compressed air from a compressed-air supply; and at least one central venting valve for exhausting compressed air from the air-bellows valves assigned to the air-spring bellows of the front axle and the rear axle, to an air vent.
    Type: Application
    Filed: June 27, 2006
    Publication date: April 19, 2007
    Inventors: Falk Hecker, Guenther Fecht, Winfried Geiger, Friedbert Roether
  • Publication number: 20050269753
    Abstract: An air suspension device for vehicles, in particular for commercial vehicles, including a valve block for aerating a plurality of air-spring bellows with compressed air from a compressed-air supply or for venting the air-spring bellows through an air vent, the valve block including at least one air-bellows valve assigned to an air-spring bellows or a group of air-spring bellows of the plurality of air-spring bellows, for individually aerating and venting this air-spring bellows or group of air-spring bellows. The present system provides for the valve block to additionally include a valve device, by which the at least one air-bellows valve may be simultaneously decoupled from the compressed-air supply and the air vent, and for a pressure sensor for measuring the air pressure in the flow path between the valve device and the at least one air-bellows valve to be provided on the other side of the corresponding air-spring bellows.
    Type: Application
    Filed: April 26, 2005
    Publication date: December 8, 2005
    Inventors: Winfried Geiger, Guenther Fecht