Patents by Inventor Anna Strehlau

Anna Strehlau 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: 9188003
    Abstract: A universal multi-orientation bracket design for attaching solenoids to a housing of a hydraulically actuated variable valve system. The bracket having at least two sidewalls, an upper cross member, a cupped lower surface and at least one mounting flange. The cupped lower surface is shaped to insert a solenoid main body and gaps included in the side walls for a protruding solenoid connector.
    Type: Grant
    Filed: February 14, 2013
    Date of Patent: November 17, 2015
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Xuewei Chen, Anna Strehlau, Jesse Myers
  • Patent number: 9121358
    Abstract: A method of using a mid-position lock VCT phaser in an engine with a stop-start mode of operation with the steps of: when the engine is in a stop mode of the stop-start mode: adjusting a duty cycle of an actuator coupled to the control valve of the phaser to command the control valve to the retard mode; maintaining the duty cycle of the actuator to command the control valve to remain in the retard mode until an automatic restart of the engine. If the key is detected in an off position either restarting the engine; commanding the phaser to the detent mode, such that the lock pin is moved to a locked position and the phaser is locked in an intermediate phase angle position; and shutting down the engine or commanding the phaser to detent mode during engine cranking during a next engine restart.
    Type: Grant
    Filed: February 22, 2013
    Date of Patent: September 1, 2015
    Assignee: BorgWarner Inc.
    Inventors: Anna Strehlau, David H. Kaitschuck, Franklin R. Smith
  • Publication number: 20140244141
    Abstract: A method of using a mid-position lock VCT phaser in an engine with a stop-start mode of operation with the steps of: when the engine is in a stop mode of the stop-start mode: adjusting a duty cycle of an actuator coupled to the control valve of the phaser to command the control valve to the retard mode; maintaining the duty cycle of the actuator to command the control valve to remain in the retard mode until an automatic restart of the engine. If the key is detected in an off position either restarting the engine; commanding the phaser to the detent mode, such that the lock pin is moved to a locked position and the phaser is locked in an intermediate phase angle position; and shutting down the engine or commanding the phaser to detent mode during engine cranking during a next engine restart.
    Type: Application
    Filed: February 22, 2013
    Publication date: August 28, 2014
    Applicant: BORGWARNER INC.
    Inventors: Anna Strehlau, David H. Kaitschuck, Franklin R. Smith
  • Patent number: 7931001
    Abstract: The invention proposes a push-rod valve train having an adjustable valve tappet (1). This has an outer part (2a, 2b), an inner part (8) and a lost-motion spring (10), which forces the inner part (8) towards a relative position, at least one retainer ring (23), which is fixed in an annular groove (21) of the outer part (2a, 2b) and which interacts with a stop face (22) of the inner part (8), being provided for fixing the relative position, said retainer ring having lugs (28) extending radially inwards and separated by a fitting gap (27). In this the free movement of the valve push rod (15) relative to the lugs (28) is assured by the provision of a torsional locking means (30a, 30b), which serves to fix the radial position of the fitting gap (27) inside the annular groove (21).
    Type: Grant
    Filed: February 2, 2007
    Date of Patent: April 26, 2011
    Assignee: Schaeffler Technologies GmbH & Co. KG
    Inventors: Florin Bugescu, Anna Strehlau
  • Patent number: 7926455
    Abstract: The finger follower has an inner and outer body and a torsional lost motion spring positioned at its lash adjuster end of the outer body. The torsional lost motion springs have a short leg that abuts the outer body and a long leg that contacts the inner body. The torsional spring is located above the pivot point of the finger follower so as to provide a low mass moment of inertia and to reduce the weight over the valve stem end of the follower.
    Type: Grant
    Filed: June 3, 2008
    Date of Patent: April 19, 2011
    Assignee: Schaeffler KG
    Inventors: Debora Manther, Yunshan Liu, Anna Strehlau, Richard Best, Xiaopo Ma
  • Patent number: 7909007
    Abstract: The finger follower has an inner and outer body and a torsional lost motion spring positioned at its lash adjuster end of the outer body. The torsional lost motion spring has two helical parts each with a short leg that abuts the outer body and a long leg that contacts the inner body. The torsional spring is located above the pivot point of the finger follower so as to provide a low mass moment of inertia and to reduce the weight over the valve stem end of the follower.
    Type: Grant
    Filed: December 4, 2008
    Date of Patent: March 22, 2011
    Assignee: Schaeffler KG
    Inventors: Debora Manther, Yunshan Liu, Anna Strehlau, Richard Best, Xiaopo Ma
  • Publication number: 20090114177
    Abstract: The finger follower has an inner and outer body and a torsional lost motion spring positioned at its lash adjuster end of the outer body. The torsional lost motion spring has two helical parts each with a short leg that abuts the outer body and a long leg that contacts the inner body. The torsional spring is located above the pivot point of the finger follower so as to provide a low mass moment of inertia and to reduce the weight over the valve stem end of the follower.
    Type: Application
    Filed: December 4, 2008
    Publication date: May 7, 2009
    Applicant: SCHAEFFLER KG
    Inventors: Debora MANTHER, Yunshan LIU, Anna STREHLAU, Richard BEST, Xiaopo Ma
  • Publication number: 20090007871
    Abstract: The invention proposes a push-rod valve train having an adjustable valve tappet (1). This has an outer part (2a, 2b), an inner part (8) and a lost-motion spring (10), which forces the inner part (8) towards a relative position, at least one retainer ring (23), which is fixed in an annular groove (21) of the outer part (2a, 2b) and which interacts with a stop face (22) of the inner part (8), being provided for fixing the relative position, said retainer ring having lugs (28) extending radially inwards and separated by a fitting gap (27). In this the free movement of the valve push rod (15) relative to the lugs (28) is assured by the provision of a torsional locking means (30a, 30b), which serves to fix the radial position of the fitting gap (27) inside the annular groove (21).
    Type: Application
    Filed: February 2, 2007
    Publication date: January 8, 2009
    Applicant: SCHAEFFLER KG
    Inventors: Florin Bugescu, Anna Strehlau
  • Publication number: 20080295789
    Abstract: The finger follower has an inner and outer body and a torsional lost motion spring positioned at its lash adjuster end of the outer body The torsional lost motion springs have a short leg that abuts the outer body and a long leg that contacts the inner body. The torsional spring is located above the pivot point of the finger follower so as to provide a low mass moment of inertia and to reduce the weight over the valve stem end of the follower.
    Type: Application
    Filed: June 3, 2008
    Publication date: December 4, 2008
    Applicant: SCHAEFFLER KG
    Inventors: Debora MANTHER, Yunshan LIU, Anna STREHLAU, Richard BEST, Xiaopo MA