Patents by Inventor Debora Manther
Debora Manther 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: 20110005483Abstract: The invention proposes a switchable finger lever (1) for a valve train of an internal combustion engine, said finger lever (1) comprising an inner lever (2) comprising on an underside (3) on one end (4), a support (5) for a gas exchange valve and on another end (6), a contact surface (7) for a head of a support element, said inner lever (2) being flanked by outer arms (8) which are articulated for pivoting relative to the inner lever (2) on a side of the one end (4), at least each of said outer arms (8) comprising on an upper side (9), a cam contacting surface (10), said inner lever (2) comprising directly next to the contact surface (7) a coupling device (11) for an optional connection of the outer arms (8) to the inner lever (2), said coupling device (11) comprising a cross-bore (12) in which two coupling slides (13) are arranged diametrically opposite each other, which coupling slides (13) for effecting coupling engage partially in or under an entraining surface (14) arranged on the respective outer arm (8Type: ApplicationFiled: May 28, 2010Publication date: January 13, 2011Inventors: Debora Manther, Jeff Villemure
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Publication number: 20100300390Abstract: A switchable finger lever for a valve train of an internal combustion engine, said finger lever comprising an inner lever comprising on an underside on one end, a support for a gas exchange valve and on another end, a contact surface for a head of a support element, said inner lever further comprising on the one end, axle stubs protruding on two sides of the inner lever, a first outer arm extending for pivoting relative to the inner lever on one of the axle stubs and a second outer arm extending for pivoting relative to the inner lever on another one of the axle stubs, said outer arms extending in direction of the another end while flanking outer walls of the inner lever and being made as separate parts from each other, a cam contacting surface being arranged on an upper side of each outer arm while, in the region of the another end, a coupling device for an optional connection of the outer arms to the inner lever is seated in the inner lever, and a restoring spring means for each outer arm acts at one end agType: ApplicationFiled: May 28, 2010Publication date: December 2, 2010Inventor: Debora Manther
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Publication number: 20100300389Abstract: The invention proposes a switchable finger lever (1) comprising an inner lever (2) comprising on one end (4), a support (5) for a gas exchange valve and on another end (6), a contact surface (7) for a head of a support element, said inner lever (2) comprising on the one end (4), pivotable outer arms (8) made separately from each other, which outer arms (8) comprise on their upper sides (10), contacting surfaces (11) for high lift cams, a coupling device (12) comprising a coupling slide (13) for simultaneously connecting the outer arms (8) to the inner lever (2) being seated in a section of the another end (6) in the inner lever (2), which coupling slide (13) is seated in an oblong hole (14) extending transversely through the inner lever (2) as also in longitudinal direction of the finger lever (2), the coupling slide (13) comprises two end portions (15) which protrude beyond the outer walls (9), and for effecting coupling, the coupling slide (13) can be displaced with the two end portions (15) partially underType: ApplicationFiled: May 10, 2010Publication date: December 2, 2010Inventors: Debora Manther, Jeffrey Shewell, Jeff Villemure
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Patent number: 7721696Abstract: Proposed is a cam follower (1) for a valve drive of an internal combustion engine, having a roller (3), which is rotatably mounted on a journal (2), as a cam thrust face, which journal (2) runs with its outer casing (4) in a respective bore (5, 6) of a first and second guide wall (7, 8) of the cam follower (1), between which guide walls (7, 8) the roller (3) is held, which outer casing (4) is composed of a first and a second section (9, 10), which first section (9) intrinsically has a greater diameter than the second section (10), wherein the journal (2) has an axial travel limitation in one direction by means of its collar (11) which is situated between the sections (9, 10), and in the other direction by means of a radially projecting element such as a securing ring (12), which collar (11) and which securing ring (12) abut against one of the guide walls (7, 8).Type: GrantFiled: July 26, 2007Date of Patent: May 25, 2010Assignee: Schaeffler KGInventors: Matthew Evans, Debora Manther, Donald Haefner, Richard Best
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Publication number: 20090114177Abstract: 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: ApplicationFiled: December 4, 2008Publication date: May 7, 2009Applicant: SCHAEFFLER KGInventors: Debora MANTHER, Yunshan LIU, Anna STREHLAU, Richard BEST, Xiaopo Ma
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Publication number: 20090064954Abstract: A switchable cam follower of a valve train assembly of an internal combustion engine is proposed, with an external lever that encloses an internal lever with its arms, of which components, that can deviate from each other flexibly, run on an axis that is attached to a valve side end, and the internal lever on an underside on the valve side end possesses a mechanism for a gas exchange valve as well as a complementary surface at the other end for storage on a head of a support element. A special characteristic is that guidance plates for the gas exchange valve come out from the underside of the external lever. That way, the switchable cam follower can be made narrower at least on the valve side. In addition, development of the mechanism for the gas exchange valve on the internal lever is simplified.Type: ApplicationFiled: April 11, 2007Publication date: March 12, 2009Applicant: SCHAEFFLER KGInventor: Debora Manther
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Publication number: 20080295789Abstract: 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: ApplicationFiled: June 3, 2008Publication date: December 4, 2008Applicant: SCHAEFFLER KGInventors: Debora MANTHER, Yunshan LIU, Anna STREHLAU, Richard BEST, Xiaopo MA
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Publication number: 20080289593Abstract: A switchable valve train for gas-exchange valves of internal combustion engines with a rocker arm device (1), in which a rocking motion about a rocker arm axis (3) can be introduced by at least one cam (2a, 2b), one tappet, or the like, wherein this rocking motion can be transmitted to at least one valve (4). The rocker arm device (1) is formed from at least one cam lever part (5) in working connection with the cam (2) and a valve lever part (6) in working connection with the valve (4), which are supported so that they can rock about the rocker arm axis (3). A coupling device is constructed between the cam lever part (5) and the valve lever part (6), in order to selectively engage and disengage the transmission of the rocking motion.Type: ApplicationFiled: February 25, 2008Publication date: November 27, 2008Applicant: SCHAEFFLER KGInventors: Debora Manther, Lucian Botez, Florin Bugescu, Richard Best
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Patent number: 7363899Abstract: A valve drive (1) for an internal combustion engine with a lever-type cam follower (7) is provided, which is used for the variable adjustable transmission of a raised section (2) of a cam (3) to a gas-exchange valve (5), in that the cam follower (7) is supported with an end section (13) away from the cam on a pivot bearing (14), which can be positioned variably on a circular arc-shaped displacement path (15), and an end section (6) close to the cam includes a transmission surface (10) in connection with the gas-exchange valve (5), and also with a support (8), wherein a contact surface (9) for the cam (3) is mounted rotatably on this support (8). Here, the center of the displacement path (15) should be essentially identical to the rotational center (17) of the support (8) when the contact surface (9) interacts with a raised section-free base circle (21) of the cam (3).Type: GrantFiled: February 22, 2007Date of Patent: April 29, 2008Assignee: Schaeffler KGInventors: Richard Best, Debora Manther
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Publication number: 20080022954Abstract: Proposed is a cam follower (1) for a valve drive of an internal combustion engine, having a roller (3), which is rotatably mounted on a journal (2), as a cam thrust face, which journal (2) runs with its outer casing (4) in a respective bore (5, 6) of a first and second guide wall (7, 8) of the cam follower (1), between which guide walls (7, 8) the roller (3) is held, which outer casing (4) is composed of a first and a second section (9, 10), which first section (9) intrinsically has a greater diameter than the second section (10), wherein the journal (2) has an axial travel limitation in one direction by means of its collar (11) which is situated between the sections (9, 10), and in the other direction by means of a radially projecting element such as a securing ring (12), which collar (11) and which securing ring (12) abut against one of the guide walls (7, 8).Type: ApplicationFiled: July 26, 2007Publication date: January 31, 2008Inventors: Matthew Evans, Debora Manther, Donald Haefner, Richard Best
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Patent number: 7284519Abstract: A device (1) for the hydraulic lash adjustment for several identically acting gas-exchange valves per cylinder of a valve train of an internal combustion engine is provided, the device (1)including a common housing (2) with directly adjacent pressure pistons (3) provided corresponding to the number of identically acting gas-exchange valves. Each pressure piston (3) moves relative to the housing in an axial direction in a separate guide (4) in the housing (2), and also has a support (6) for an at least indirect contact with the corresponding gas-exchange valve on a distal end (5) away from the housing, and a non-return valve (8) in the region of a housing bottom (7) wherein a separate high-pressure chamber (9) is associated with each pressure piston (3) in which the non-return valve (8) opens. The high-pressure chamber (9) extends axially between the bottom (7) of the pressure piston (3) and a base (10) of the housing (2), and the pressure pistons (3) arranged in the common housing (2) have a common reservoir.Type: GrantFiled: January 25, 2007Date of Patent: October 23, 2007Assignee: Schaeffler KGInventors: Richard Best, Florin Bugescu, Debora Manther
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Publication number: 20070215087Abstract: A device (1) for the hydraulic lash adjustment for several identically acting gas-exchange valves per cylinder of a valve train of an internal combustion engine is provided, the device (1) including a common housing (2) with directly adjacent pressure pistons (3) provided corresponding to the number of identically acting gas-exchange valves. Each pressure piston (3) moves relative to the housing in an axial direction in a separate guide (4) in the housing (2), and also has a support (6) for an at least indirect contact with the corresponding gas-exchange valve on a distal end (5) away from the housing, and a non-return valve (8) in the region of a housing bottom (7) wherein a separate high-pressure chamber (9) is associated with each pressure piston (3) in which the non-return valve (8) opens.Type: ApplicationFiled: January 25, 2007Publication date: September 20, 2007Applicant: SCHAEFFLER KGInventors: Richard Best, Florin Bugescu, Debora Manther
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Publication number: 20070193538Abstract: A valve drive (1) for an internal combustion engine with a lever-type cam follower (7) is provided, which is used for the variable adjustable transmission of a raised section (2) of a cam (3) to a gas-exchange valve (5), in that the cam follower (7) is supported with an end section (13) away from the cam on a pivot bearing (14), which can be positioned variably on a circular arc-shaped displacement path (15), and an end section (6) close to the cam includes a transmission surface (10) in connection with the gas-exchange valve (5), and also with a support (8), wherein a contact surface (9) for the cam (3) is mounted rotatably on this support (8). Here, the center of the displacement path (15) should be essentially identical to the rotational center (17) of the support (8) when the contact surface (9) interacts with a raised section-free base circle (21) of the cam (3).Type: ApplicationFiled: February 22, 2007Publication date: August 23, 2007Applicant: SCHAEFFLER KGInventors: Richard Best, Debora Manther