Patents by Inventor Roland Holz
Roland Holz 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).
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Publication number: 20230304561Abstract: A switchable hydraulic bearing for mounting of a motor-vehicle assembly comprises a support bearing and a mount connected by a support spring, and a working chamber and an equalization chamber fillable with damping liquid that are spatially separated by a separating wall and connected by a damping channel in the separating wall. The separating wall may comprise a nozzle cage with two adjacent nozzle discs provided with an axial spacing. A diaphragm of rubber-elastic material may be provided in a gap between the nozzle discs. The diaphragm may be switchable by a switching device comprising an elastic lever disc axially adjacent to the second nozzle disc. An electromagnet may connect to the lever disc and can adjust the lever disc between a first position, permitting axial play of the diaphragm in the gap, and a second position, acting on the second nozzle disc and clamping the diaphragm between nozzle discs.Type: ApplicationFiled: April 14, 2021Publication date: September 28, 2023Inventors: Wolfgang Beckmann, Roland Holz, Stefan Gölz, Bernhard Röhrig
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Patent number: 11549566Abstract: A hydraulically damping mount for mounting a motor vehicle unit on a motor vehicle body includes a support and a support mount which are interconnected by a support spring made of an elastomeric material. In embodiments, a support spring limits a working chamber which is separated from a compensating chamber by a separating device, wherein the working chamber and the compensating chamber may be filled with a fluid and may be connected to one another via a damping channel included in the separating device, wherein the separating device may include two nozzle discs between which a first membrane and a second membrane are arranged, and wherein one of the membranes has at least one through-hole.Type: GrantFiled: December 21, 2018Date of Patent: January 10, 2023Assignee: Vibracoustic SEInventors: Roland Holz, Stefan Gölz, Robert Jambor, Tina Heilmann
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Patent number: 11215262Abstract: A hydraulic bearing for supporting an assembly of a motor vehicle includes a carrying bearing portion and a support portion. In embodiments, a working chamber that is fillable with hydraulic fluid is formed in the carrying bearing portion, and a compensating chamber that is fillable with hydraulic fluid is formed in the support portion. A nozzle disc, through which the flow can pass and which delimits the working chamber from the compensating chamber, may be arranged between the carrying bearing portion and the support portion, and a damping duct for the fluidic communication of the working chamber with the compensating chamber may be formed in the nozzle disc. In embodiments, the two chambers, the damping duct, and the hydraulic fluid may form a first damping system for damping vibrations of lower frequencies and a second damping system may be formed for damping vibrations of higher frequencies.Type: GrantFiled: February 16, 2018Date of Patent: January 4, 2022Assignee: Vibracoustic SEInventors: Mark Lünebach, Roland Holz
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Publication number: 20210033166Abstract: A hydraulically damping mount for mounting a motor vehicle unit on a motor vehicle body includes a support and a support mount which are interconnected by a support spring made of an elastomeric material. In embodiments, a support spring limits a working chamber which is separated from a compensating chamber by a separating device, wherein the working chamber and the compensating chamber may be filled with a fluid and may be connected to one another via a damping channel included in the separating device, wherein the separating device may include two nozzle discs between which a first membrane and a second membrane are arranged, and wherein one of the membranes has at least one through-hole.Type: ApplicationFiled: December 21, 2018Publication date: February 4, 2021Inventors: Roland Holz, Stefan Gölz, Robert Jambor, Tina Heilmann
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Publication number: 20200182328Abstract: A hydraulic bearing for supporting an assembly of a motor vehicle includes a carrying bearing portion and a support portion. In embodiments, a working chamber that is fillable with hydraulic fluid is formed in the carrying bearing portion, and a compensating chamber that is fillable with hydraulic fluid is formed in the support portion. A nozzle disc, through which the flow can pass and which delimits the working chamber from the compensating chamber, may be arranged between the carrying bearing portion and the support portion, and a damping duct for the fluidic communication of the working chamber with the compensating chamber may be formed in the nozzle disc. In embodiments, the two chambers, the damping duct, and the hydraulic fluid may form a first damping system for damping vibrations of lower frequencies and a second damping system may be formed for damping vibrations of higher frequencies.Type: ApplicationFiled: February 16, 2018Publication date: June 11, 2020Inventors: Mark Lünebach, Roland Holz
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Patent number: 6756966Abstract: A display device, especially for a motor vehicle, includes a display unit a display controller and at least one control unit, with which the image format of the display unit can be controlled. The display unit is configured such that it can be moved to enable different display fields to be viewed.Type: GrantFiled: December 6, 2001Date of Patent: June 29, 2004Assignee: Volkswagen AGInventors: Susanne Dirksen, Roland Holz, Christof Oelrich
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Patent number: 6506136Abstract: A continuously variable transmission wherein each of two parallel shafts carries a pulley having a fixed flange and a second flange movable axially of the shaft toward and away from the respective fixed flange. An endless torque transmitting chain or belt is trained over the two pulleys. At least one flange of at least one of the pulleys is assembled of two or more parts which consist of sheet metal and are welded and/or otherwise affixed to each other.Type: GrantFiled: May 7, 2001Date of Patent: January 14, 2003Assignee: LuK Geriebe-Systeme GmbHInventors: Jochen Schmid, Rainer Eidloth, Carsten Weinhold, Roland Hölz, Bernhard Walter
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Publication number: 20020041273Abstract: A display device, especially for a motor vehicle, includes a display unit a display controller and at least one control unit, with which the image format of the display unit can be controlled. The display unit is configured such that it can be moved to enable different display fields to be viewed.Type: ApplicationFiled: December 6, 2001Publication date: April 11, 2002Inventors: Susanne Dirksen, Roland Holz, Christof Oelrich
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Publication number: 20010031678Abstract: A continuously variable transmission wherein each of two parallel shafts carries a pulley having a fixed flage and a second flange movable axially of the shaft toward and away from the respective fixed flange. An endless torque transmitting chain or belt is trained over the two pulleys. At least one flange of at least one of the pulleys is assembled of two or more parts which consist of sheet metal and are welded and/or otherwise affixed to each other.Type: ApplicationFiled: May 7, 2001Publication date: October 18, 2001Applicant: LUK GETRIEBE-SYSTEME GMBHInventors: Jochen Schmid, Rainer Eidloth, Carsten Weinhold, Roland Holz, Bernhard Walter
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Patent number: 6241635Abstract: A continuously variable transmission wherein each of two parallel shafts carries a pulley having a fixed flange and a second flange movable axially of the shaft toward and away from the respective fixed flange. An endless torque transmitting chain or belt is trained over the two pulleys. At least one flange of at least one of the pulleys is assembled of two or more parts which consist of sheet metal and are welded and/or otherwise affixed to each other.Type: GrantFiled: March 9, 1999Date of Patent: June 5, 2001Assignee: LuK Getriebe-Systeme GmbHInventors: Jochen Schmid, Rainer Eidloth, Carsten Weinhold, Roland Hölz, Bernhard Walter