Patents by Inventor Juergen Ryba
Juergen Ryba 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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Patent number: 11441620Abstract: An electric clutch actuator having an electric motor, a gear mechanism and a spindle which is coupled to the electric motor via the gear mechanism, wherein the spindle, the gear mechanism and the electric motor are received in a housing configured in one piece.Type: GrantFiled: September 16, 2019Date of Patent: September 13, 2022Assignee: FTE automotive GmbHInventors: Juergen Ryba, Dimitri Ostrohov, Frank Sauerteig, Michael Erdmann, Christian Sperber
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Patent number: 11359682Abstract: An electric clutch actuator having an electric motor, a spindle and a gear mechanism which is arranged between the electric motor and the spindle, wherein the gear mechanism is mounted on a base plate which is received in the housing.Type: GrantFiled: September 16, 2019Date of Patent: June 14, 2022Assignee: FTE automotive GmbHInventors: Juergen Ryba, Alexander Lehnert, Frank Sauerteig, Michael Erdmann, Christian Sperber
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Patent number: 11060567Abstract: An electric clutch actuator having a housing, an electric motor, a gear mechanism and a spindle which is coupled to the electric motor via the gear mechanism, wherein the spindle has an output end which acts on a relief piston which is displaceably mounted on a guide piston which is mounted so as to be displaceable in the housing, wherein the relief piston is urged elastically away from the guide piston towards the spindle.Type: GrantFiled: September 16, 2019Date of Patent: July 13, 2021Assignee: FTE automotive GmbHInventors: Juergen Ryba, Dimitri Ostrohov, Frank Sauerteig, Michael Erdmann, Christian Sperber
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Publication number: 20200088244Abstract: An electric clutch actuator having an electric motor, a spindle and a gear mechanism which is arranged between the electric motor and the spindle, wherein the gear mechanism is mounted on a base plate which is received in the housing.Type: ApplicationFiled: September 16, 2019Publication date: March 19, 2020Applicant: FTE automotive GmbHInventors: Juergen Ryba, Alexander Lehnert, Frank Sauerteig, Michael Erdmann, Christian Sperber
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Publication number: 20200088247Abstract: An electric clutch actuator having an electric motor, a gear mechanism and a spindle which is coupled to the electric motor via the gear mechanism, wherein the spindle, the gear mechanism and the electric motor are received in a housing configured in one piece.Type: ApplicationFiled: September 16, 2019Publication date: March 19, 2020Applicant: FTE automotive GmbHInventors: Juergen RYBA, Dimitri Ostrohov, Frank Sauerteig, Michael Erdmann, Christian Sperber
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Publication number: 20200088248Abstract: An electric clutch actuator having a housing, an electric motor, a gear mechanism and a spindle which is coupled to the electric motor via the gear mechanism, wherein the spindle has an output end which acts on a relief piston which is displaceably mounted on a guide piston which is mounted so as to be displaceable in the housing, wherein the relief piston is urged elastically away from the guide piston towards the spindle.Type: ApplicationFiled: September 16, 2019Publication date: March 19, 2020Applicant: FTE automotive GmbHInventors: Juergen RYBA, Dimitri Ostrohov, Frank Sauerteig, Michael Erdmann, Christian Sperber
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Patent number: 9932998Abstract: A hydraulic cylinder has a cylinder housing in which is formed a pressure chamber variably bounded on one side by a piston of a piston subassembly that is longitudinally displaceable. A piston rod is rigidly connected with the piston, wherein the piston has an outer contour, which permits tilting of the piston subassembly in the cylinder housing, and a projection, which is at the pressure chamber side and on which a sealing element is centered and retained by a retaining ring. The sealing element has an encircling sealing lip that slidably and sealably bears against a sliding surface of the cylinder housing. The retaining ring is provided on the side thereof opposite from the sealing element with a stiffened prolongation.Type: GrantFiled: August 2, 2016Date of Patent: April 3, 2018Assignee: FTE automotive GmbHInventor: Jürgen Ryba
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Patent number: 9890803Abstract: A hydraulic cylinder for a hydraulic clutch actuating system for motor vehicles has a piston subassembly with a piston and piston rod, a cylinder housing in which a pressure chamber is variably bounded at one side by the piston and fixedly bounded at the other side by a base of the cylinder housing. A spring element is arranged at the side of the piston opposite from the pressure chamber and is supported at one end on a spring plate on the housing side and operatively connected at the other end with the piston rod so as to bias the piston subassembly in a direction away from the base. A fixing section fixes the piston subassembly in a predetermined stroke setting with respect to the cylinder housing prior to first actuation of the hydraulic cylinder and is constructed to release the piston subassembly relative to the cylinder housing upon first actuation.Type: GrantFiled: August 2, 2016Date of Patent: February 13, 2018Assignee: FTE Automotive GmbHInventor: Jürgen Ryba
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Patent number: 9605718Abstract: The invention relates to a device that is always open for the pressure medium for reducing pressure pulsations and that can be switched between a pressure chamber of a slave cylinder and a pressure chamber of a master cylinder of a hydraulic force transmission system for motor vehicles. The device has an additional line section in the form of a channel having an opening on the slave cylinder side, an opening on the master cylinder side, and a channel length equaling a multiple of the direct distance between the two openings, and a volume receiver that can be elastically deformed under pressure, wherein the channel and the volume receiver are combined into an assembly in a housing. The result according to the invention is a device that not only has very good vibration dampening properties, but is also very compact and has a cost-effective design.Type: GrantFiled: January 22, 2010Date of Patent: March 28, 2017Assignee: FTE automotive GmbHInventors: Stefan Gebert, Egid Macht, Paul Marks, Robert Mueller, Juergen Ryba, Jochen Schneier, Wilfried Weibelzahl
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Publication number: 20170037881Abstract: A hydraulic cylinder for a hydraulic clutch actuating system for motor vehicles has a piston subassembly with a piston and piston rod, a cylinder housing in which a pressure chamber is variably bounded at one side by the piston and fixedly bounded at the other side by a base of the cylinder housing. A spring element is arranged at the side of the piston opposite from the pressure chamber and is supported at one end on a spring plate on the housing side and operatively connected at the other end with the piston rod so as to bias the piston subassembly in a direction away from the base.Type: ApplicationFiled: August 2, 2016Publication date: February 9, 2017Inventor: Jürgen Ryba
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Patent number: 9404544Abstract: A slave cylinder for a vibration-damped hydraulic force transmission system, particularly a hydraulic clutch actuating system for motor vehicles is disclosed, comprising a cylinder housing, a piston received therein to be longitudinally displaceable and a pressure chamber which is bounded by the cylinder housing and the piston and which can be selectably acted on by a pressure medium, by way of a pressure connection provided in the cylinder housing, in order to displace the piston in the cylinder housing. An insert member which is inserted in the pressure chamber and secured in the pressure connection and which is equipped with a device for reducing pressure pulses, the device being constantly open to the pressure medium, is additionally provided. As a result, the vibration-damping measures or means are integrated in the slave cylinder in a particularly economic and space-saving manner.Type: GrantFiled: November 25, 2013Date of Patent: August 2, 2016Assignee: FTE automotive GmbHInventors: Egid Macht, Paul Marks, Robert Müller, Jürgen Ryba, Wilfried Weibelzahl
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Publication number: 20140076681Abstract: A slave cylinder for a vibration-damped hydraulic force transmission system, particularly a hydraulic clutch actuating system for motor vehicles is disclosed, comprising a cylinder housing, a piston received therein to be longitudinally displaceable and a pressure chamber which is bounded by the cylinder housing and the piston and which can be selectably acted on by a pressure medium, by way of a pressure connection provided in the cylinder housing, in order to displace the piston in the cylinder housing. An insert member which is inserted in the pressure chamber and secured in the pressure connection and which is equipped with a device for reducing pressure pulses, the device being constantly open to the pressure medium, is additionally provided. As a result, the vibration-damping measures or means are integrated in the slave cylinder in a particularly economic and space-saving manner.Type: ApplicationFiled: November 25, 2013Publication date: March 20, 2014Applicant: FTE automotive GmbHInventors: Egid Macht, Paul Marks, Robert Müller, Jürgen Ryba, Wilfried Weibelzahl
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Patent number: 8636128Abstract: A slave cylinder (50) for a vibration-damped hydraulic force transmission system, particularly a hydraulic clutch actuating system for motor vehicles is disclosed, comprising a cylinder housing (52), a piston (56) received therein to be longitudinally displaceable and a pressure chamber (60) which is bounded by the cylinder housing and the piston and which can be selectably acted on by a pressure medium, by way of a pressure connection (66) provided in the cylinder housing, in order to displace the piston in the cylinder housing. An insert member (68) which is inserted in the pressure chamber and secured in the pressure connection and which is equipped with a device (70) for reducing pressure pulses, the device being constantly open to the pressure medium, is additionally provided. As a result, the vibration-damping measures or means are integrated in the slave cylinder in a particularly economic and space-saving manner.Type: GrantFiled: January 21, 2010Date of Patent: January 28, 2014Assignee: FTE automotive GmbHInventors: Egid Macht, Paul Marks, Robert Müller, Jürgen Ryba, Wilfried Weibelzahl
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Publication number: 20110303315Abstract: The invention relates to a device that is always open for the pressure medium for reducing pressure pulsations and that can be switched between a pressure chamber of a slave cylinder and a pressure chamber of a master cylinder of a hydraulic force transmission system for motor vehicles. The device has an additional line section in the form of a channel having an opening on the slave cylinder side, an opening on the master cylinder side, and a channel length equaling a multiple of the direct distance between the two openings, and a volume receiver that can be elastically deformed under pressure, wherein the channel and the volume receiver are combined into an assembly in a housing. The result according to the invention is a device that not only has very good vibration dampening properties, but is also very compact and has a cost-effective design.Type: ApplicationFiled: January 22, 2010Publication date: December 15, 2011Applicant: FTE automotive GmbHInventors: Stefan Gebert, Egid Macht, Paul Marks, Robert Mueller, Juergen Ryba, Jochen Schneier, Wilfried Weibelzahl
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Publication number: 20100181158Abstract: A slave cylinder (50) for a vibration-damped hydraulic force transmission system, particularly a hydraulic clutch actuating system for motor vehicles is disclosed, comprising a cylinder housing (52), a piston (56) received therein to be longitudinally displaceable and a pressure chamber (60) which is bounded by the cylinder housing and the piston and which can be selectably acted on by a pressure medium, by way of a pressure connection (66) provided in the cylinder housing, in order to displace the piston in the cylinder housing. An insert member (68) which is inserted in the pressure chamber and secured in the pressure connection and which is equipped with a device (70) for reducing pressure pulses, the device being constantly open to the pressure medium, is additionally provided. As a result, the vibration-damping measures or means are integrated in the slave cylinder in a particularly economic and space-saving manner.Type: ApplicationFiled: January 21, 2010Publication date: July 22, 2010Applicant: FTE automotive GmbHInventors: Egid Macht, Paul Marks, Robert Müller, Jürgen Ryba, Wilfried Weibelzahl
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Patent number: 7493849Abstract: A hydraulic cylinder has a pressure chamber delimited on one side by a piston accommodated in a longitudinally displaceable manner in a cylinder housing, on the other side by a housing bottom of the cylinder housing, and radially outwards by a circumferential wall of the cylinder housing, wherein the pressure chamber can be acted upon by a pressure medium via a pressure connection provided at the housing bottom in order to displace the piston in the cylinder housing. An insertion part is inserted in the pressure connection and has a channel section which communicates with the pressure connection and, in the installed position of the hydraulic cylinder, extends essentially in the vertical direction and opens into the pressure chamber in the vicinity of the circumferential wall of the cylinder housing. As a result, a hydraulic cylinder is provided which is compact and is designed in a simple manner, and which can be deaerated in a simpler manner compared to the prior art.Type: GrantFiled: December 1, 2005Date of Patent: February 24, 2009Assignee: FTE automotive GmbHInventors: Egid Macht, Hubert Derra, Jürgen Ryba, Dieter Grimmer
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Patent number: 7287376Abstract: A hydraulic cylinder comprises a piston assembly with a piston and a piston rod, a cylinder housing with a housing bottom, a pressure chamber in the cylinder housing delimited by the piston and housing bottom, a spring element which prestresses the piston assembly away from the housing bottom, and a fixing element which fixes the piston assembly in a predefined stroke position relative to the cylinder housing prior to first actuation of the hydraulic cylinder and is designed to release the piston assembly relative to the cylinder housing upon first actuation of the hydraulic cylinder. The spring element is arranged on the side of the piston which is remote from the pressure chamber, whereas the fixing element is provided in the pressure chamber at the housing bottom and co-operates with a mating element on the piston to releasably fix the piston assembly relative to the cylinder housing.Type: GrantFiled: December 1, 2005Date of Patent: October 30, 2007Assignee: FTE automotive GmbHInventors: Egid Macht, Hubert Derra, Jürgen Ryba, Dieter Grimmer