Patents by Inventor Arno Bachstadt
Arno Bachstadt 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: 11220956Abstract: The disclosure relates to a method for detecting belt slip of a belt drive driving a generator of an internal combustion engine, said belt drive having a belt tensioner that can be adjusted in operation and adjusts the pre-tensioning force of the belt according to the detected belt slip. According to said method, the rotational speed profile of the crankshaft is recorded during an angular window of the crankshaft of m·360 degrees and an average value of the crankshaft rotational speed is formed from said rotational speed profile; temporally independently from the recording of the rotational speed profile of the crankshaft, the rotational speed course of the generator shaft is recorded during an angular window of the generator shaft of n·u?1·360 degrees and an average value of the generator shaft rotational speed is formed from said rotational speed profile.Type: GrantFiled: April 10, 2018Date of Patent: January 11, 2022Assignee: Schaeffler Technologies AG & Co. KGInventors: Martin Heckel, Arno Bächstädt, Christian Hoffmann, Massimo Abrate, Vladimir Baranov
-
Publication number: 20200056536Abstract: The disclosure relates to a method for detecting belt slip of a belt drive driving a generator of an internal combustion engine, said belt drive having a belt tensioner that can be adjusted in operation and adjusts the pre-tensioning force of the belt according to the detected belt slip. According to said method, the rotational speed profile of the crankshaft is recorded during an angular window of the crankshaft of m·360 degrees and an average value of the crankshaft rotational speed is formed from said rotational speed profile; temporally independently from the recording of the rotational speed profile of the crankshaft, the rotational speed course of the generator shaft is recorded during an angular window of the generator shaft of n·u?1·360 degrees and an average value of the generator shaft rotational speed is formed from said rotational speed profile.Type: ApplicationFiled: April 10, 2018Publication date: February 20, 2020Applicant: Schaeffler Technologies AG & Co. KGInventors: Martin Heckel, Arno Bächstädt, Christian Hoffmann, Massimo Abrate, Vladimir Baranov
-
Patent number: 10247061Abstract: A hydraulic valve brake for a hydraulic valve drive of an internal combustion engine is provided. The valve brake includes a housing with a housing wall and with a housing base, and includes a piston which moves axially in the housing and one end side of which, together with the housing wall and the housing base, delimits a hydraulic pressure chamber and the other end side of which actuates a gas exchange valve. The housing wall is perforated in the region of the pressure chamber by one or more overflow openings, the opening cross sections of which are controlled by a control edge, which delimits the end side at the pressure chamber side, of the piston. In this case, it is the intention for the axial distance (h) between the control edge of the piston, when the latter is fully retracted into the housing, and the housing base to be set by a spacer of predetermined thickness (d).Type: GrantFiled: March 23, 2018Date of Patent: April 2, 2019Assignee: SCHAEFFLER TECHNOLOGIES AG & CO. KGInventors: Steve Beier, Arno Bachstadt, Hendrik Thomann
-
Publication number: 20180230868Abstract: A hydraulic valve brake for a hydraulic valve drive of an internal combustion engine is provided. The valve brake includes a housing with a housing wall and with a housing base, and includes a piston which moves axially in the housing and one end side of which, together with the housing wall and the housing base, delimits a hydraulic pressure chamber and the other end side of which actuates a gas exchange valve. The housing wall is perforated in the region of the pressure chamber by one or more overflow openings, the opening cross sections of which are controlled by a control edge, which delimits the end side at the pressure chamber side, of the piston. In this case, it is the intention for the axial distance (h) between the control edge of the piston, when the latter is fully retracted into the housing, and the housing base to be set by a spacer of predetermined thickness (d).Type: ApplicationFiled: March 23, 2018Publication date: August 16, 2018Applicant: Schaeffler Technologies AG & Co. KGInventors: Steve Beier, Arno Bachstadt, Hendrik Thomann
-
Patent number: 9957856Abstract: A hydraulic valve brake for a hydraulic valve drive of an internal combustion engine is provided. The valve brake includes a housing with a housing wall and with a housing base, and includes a piston which moves axially in the housing and one end side of which, together with the housing wall and the housing base, delimits a hydraulic pressure chamber and the other end side of which actuates a gas exchange valve. The housing wall is perforated in the region of the pressure chamber by one or more overflow openings, the opening cross sections of which are controlled by a control edge, which delimits the end side at the pressure chamber side, of the piston. In this case, it is the intention for the axial distance (h) between the control edge of the piston, when the latter is fully retracted into the housing, and the housing base to be set by a spacer of predetermined thickness (d).Type: GrantFiled: October 8, 2014Date of Patent: May 1, 2018Assignee: Schaffer Technologies AG & Co. KGInventors: Steve Beier, Arno Bachstadt, Hendrik Thomann
-
Publication number: 20160273420Abstract: A hydraulic valve brake for a hydraulic valve drive of an internal combustion engine is provided. The valve brake includes a housing with a housing wall and with a housing base, and includes a piston which moves axially in the housing and one end side of which, together with the housing wall and the housing base, delimits a hydraulic pressure chamber and the other end side of which actuates a gas exchange valve. The housing wall is perforated in the region of the pressure chamber by one or more overflow openings, the opening cross sections of which are controlled by a control edge, which delimits the end side at the pressure chamber side, of the piston. In this case, it is the intention for the axial distance (h) between the control edge of the piston, when the latter is fully retracted into the housing, and the housing base to be set by a spacer of predetermined thickness (d).Type: ApplicationFiled: October 8, 2014Publication date: September 22, 2016Applicant: Schaeffler Technologies AG & Co. KGInventors: Steve Beier, Arno Bachstadt, Hendrik Thomann