Patents by Inventor Joachim Seitz
Joachim Seitz 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: 20070101958Abstract: An adjustable valve rocker lever (1) of a valve timing gear of an internal combustion engine comprising an inner lever (3) and an outer lever (4) enclosing the former with its arms (2), the levers (3, 4) being connectable to one another by longitudinally displaceable coupling links (6) in such a way that a large valve lift is generated when coupled and a small valve lift is generated when decoupled, the levers (3, 4) run on a common axis (5), which viewed in the longitudinal direction is arranged between a complementary face (11) for a support element on the inner lever (3) and lifting faces (12, 13) for the lifting cams on upper sides of the levers (3, 4), wherein by virtue of its axis (5), situated close to the pivot point, such a valve rocker lever (1) has only a small mass moment of inertia about this pivot point.Type: ApplicationFiled: November 9, 2006Publication date: May 10, 2007Inventor: Joachim Seitz
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Publication number: 20070084426Abstract: The invention relates to an adjustable valve rocker lever (1) of a valve timing gear of an internal combustion engine, having an inner lever (3) and an outer lever (4) enclosing the former with its arms (2), the levers (3, 4) running on a common axis (5) so that they can swivel relative to one another and being connectable to one another by way of coupling links (6) in such a way that a large valve lift is generated when coupled and a comparatively smaller or zero valve lift is generated when decoupled, the inner lever (3) on an underside (7) at one end (8) of the axis (5) having a seating face (9) for an exhaust and refill valve and at the other end (10) a complementary face (11) for a support element, and at least the outer lever (4) having a lifting face (12) for a lifting cam, and a lost-motion spring (13) being provided between the levers (3, 4), the axis (5), viewed in the longitudinal direction of the valve rocker lever (1), being arranged between the seating face (9) for the exhaust and refill valve aType: ApplicationFiled: October 12, 2006Publication date: April 19, 2007Inventor: Joachim Seitz
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Patent number: 7201126Abstract: An adjustable valve rocker lever (1) of a valve timing gear of an internal combustion engine, having an inner lever (3) and an outer lever (4) enclosing the former with its arms (2), the levers (3, 4) running on a common axis (5) so that they can swivel relative to one another and being connectable to one another by way of coupling links (6) in such a way that a large valve lift is generated when coupled and a comparatively smaller or zero valve lift is generated when decoupled, the inner lever (3) on an underside (7) at one end (8) of the axis (5) having a seating face (9) for an exhaust and refill valve and at the other end (10), a complementary face (11) for a support element, and at least the outer lever (4) having a lifting face (12) for a lifting cam, and a lost-motion spring (13) being provided between the levers (3, 4), the axis (5), viewed in the longitudinal direction of the valve rocker lever (1), being arranged between the seating face (9) for the exhaust and refill valve and a section directly inType: GrantFiled: October 12, 2006Date of Patent: April 10, 2007Assignee: Schaeffler KGInventor: Joachim Seitz
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Publication number: 20070006837Abstract: A finger lever (1) that can be switched for different cam lifts is provided. The finger lever includes an outer arm (2), between whose limbs (3) an inner arm (4) is pivotally mounted. Inside the inner arm (4), starting form one end (9), a blind borehole (16) is provided with a coupling element (5), which can be longitudinally displaced therein and which, in the event of coupling, can be displaced partially under a driver surface (18) of a crossbar (15) of the outer arm (2). Height stopping parts (34) are provided on the inner arm (4) in the form of a simple, finger-like extension of the inner arm (4) at the end (9) thereof which extend out over the crossbar (15).Type: ApplicationFiled: March 9, 2004Publication date: January 11, 2007Applicant: INA-Schaeffler KGInventors: Joachim Seitz, Bodo Rorig, Anteo Opipari
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Patent number: 6708660Abstract: The invention proposes a switchable finger lever (1) comprising a fork-shaped outer lever (2) between whose arms (3a, 3b) a fork-shaped inner lever (4) is arranged for pivoting relative thereto. The outer lever (2) comprises on an underside (6) in the region of its one closed end (7), a support (8) for the gas exchange valve. The inner lever (4) comprises on the underside (6) on the opposite end (9), a complementary surface (10) for a support element, and on the side of the one end (7), a cam contacting means (12). The latter extends on an axle (13) that is fixed in the outer lever (2). The two levers (2, 4) can be coupled and uncoupled at the opposite end (9) by a transversely displaceable coupling element (5). In this way, a switchable finger lever (1) is obtained that can also be designated as a “buckling” lever and, due to its configuration, has only a small design space requirement.Type: GrantFiled: June 5, 2003Date of Patent: March 23, 2004Assignee: INA-Schaeffler KGInventor: Joachim Seitz
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Publication number: 20030230270Abstract: The invention proposes a switchable finger lever (1) comprising a fork-shaped outer lever (2) between whose arms (3a, 3b) a fork-shaped inner lever (4) is arranged for pivoting relative thereto. The outer lever (2) comprises on an underside (6) in the region of its one closed end (7), a support (8) for the gas exchange valve. The inner lever (4) comprises on the underside (6) on the opposite end (9), a complementary surface (10) for a support element, and on the side of the one end (7), a cam contacting means (12). The latter extends on an axle (13) that is fixed in the outer lever (2). The two levers (2, 4) can be coupled and uncoupled at the opposite end (9) by a transversely displaceable coupling element (5). In this way, a switchable finger lever (1) is obtained that can also be designated as a “buckling” lever and, due to its configuration, has only a small design space requirement.Type: ApplicationFiled: June 5, 2003Publication date: December 18, 2003Inventor: Joachim Seitz
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Patent number: 6655333Abstract: In a valve train of an internal combustion engine having a switchable support element (1), the lost motion spring (18) of the support element (1) is arranged axially offset next to the support element (1) while being coupled to an inner element (3) of the support element (1) by a crossbar (20). Due to this externally positioned spring (18), the support element (1) requires only a relatively small design space.Type: GrantFiled: November 29, 2001Date of Patent: December 2, 2003Assignee: Ina Walzlager Schaeffler oHGInventors: Joachim Seitz, Michael Haas, Bodo Rörig, Dicter Schmidt
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Patent number: 6631736Abstract: A device is used to meter a gaseous medium, in particular air, by means of a plurality of metering valves, into a plurality of components of a fuel cell system used in a motor vehicle. All of the metering valves are arranged on a central middle block. The central middle block has at least one inlet opening for the gaseous medium, which is connected, via at least one passage, to in each case one connection point for each of the metering valves.Type: GrantFiled: July 23, 2001Date of Patent: October 14, 2003Assignee: Ballard Power Systems AGInventors: Joachim Seitz, Jochen Sang
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Publication number: 20030111034Abstract: In a valve train of an internal combustion engine having a switchable support element (1), the lost motion spring (18) of the support element (1) is arranged axially offset next to the support element (1) while being coupled to an inner element (3) of the support element (1) by a crossbar (20). Due to this externally positioned spring (18), the support element (1) requires only a relatively small design space.Type: ApplicationFiled: November 29, 2001Publication date: June 19, 2003Inventors: Joachim Seitz, Michael Haas, Bodo Rorig, Dicter Schmidt
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Patent number: 6460495Abstract: In a switchable support element (1) for a valve train of an internal combustion engine, the lost motion spring (8) of the valve train is made as a torsion spring. This spring is arranged outside of the support element (1) and only the legs and the arms of the spring engage a housing and a head, respectively. In this way, the support element (1) requires no substantially larger design space than non-switchable prior art elements, particularly in axial direction.Type: GrantFiled: December 3, 2001Date of Patent: October 8, 2002Assignee: Ina Walzlager Schaeffler oHGInventors: Joachim Seitz, Dieter Schmidt, Michael Haas, Bodo Rörig
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Patent number: 6435148Abstract: A switchable support element (1) requiring only a small design space. For this purpose, a slide (12) that serves to couple an inner element (6) to an outer housing (3) in the support element (1) is positioned laterally in a housing (2) arranged in the cylinder head (5). At the same time, a bore (8) in the inner element (6) for the slide (12) is made as a pocket bore, the housing (2) being seated through an annular extension (11) directly in a bore (9) of the outer housing (3).Type: GrantFiled: September 5, 2001Date of Patent: August 20, 2002Assignee: INA Walzlager Schaeffler oHGInventors: Michael Haas, Bodo Rörig, Dieter Schmidt, Joachim Seitz
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Patent number: 6425358Abstract: A switchable, hydraulic support element (1) requiring only a small design space is proposed. For achieving this, a bore (16) for a slide (23) is arranged laterally of a pressure piston (10) of a hydraulic clearance compensation element (11) in the inner element (7) and is configured as a pocket bore. This dispenses with the stacked arrangement of the bore in the inner element and the clearance compensation element on top of each other as seen in prior art. At the same time, the slide (23) is installed in a housing (19) that extends in the cylinder head (5).Type: GrantFiled: September 5, 2001Date of Patent: July 30, 2002Assignee: Ina Walzlager Schaeffler oHGInventors: Michael Haas, Bodo Rörig, Dieter Schmidt, Joachim Seitz
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Patent number: 6418894Abstract: An engaging and disengaging support element is proposed, having a compression spring (21) constructed as a so-called “lost-motion spring” that concentrically surrounds an inner element (5) that can be uncoupled. Because of this construction, a considerable amount of construction space is gained in the axial direction. Preferably, the support element (1) is provided with a hydraulic play compensation element (9).Type: GrantFiled: October 30, 2000Date of Patent: July 16, 2002Assignee: Ina Walzlager Schaeffler oHGInventors: Michael Haas, Joachim Seitz
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Publication number: 20020053326Abstract: In a switchable support element (1) for a valve train of an internal combustion engine, the lost motion spring (8) of the valve train is made as a torsion spring. This spring is arranged outside of the support element (1) and only the legs and the arms of the spring engage a housing and a head, respectively. In this way, the support element (1) requires no substantially larger design space than non-switchable prior art elements, particularly in axial direction.Type: ApplicationFiled: December 3, 2001Publication date: May 9, 2002Inventors: Joachim Seitz, Dieter Schmidt, Michael Haas, Bodo Rorig
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Publication number: 20020043288Abstract: A device is used to meter a gaseous medium, in particular air, by means of a plurality of metering valves, into a plurality of components of a fuel cell system used in a motor vehicle. All of the metering valves are arranged on a central middle block. The central middle block has at least one inlet opening for the gaseous medium, which is connected, via at least one passage, to in each case one connection point for each of the metering valves.Type: ApplicationFiled: July 23, 2001Publication date: April 18, 2002Inventors: Joachim Seitz, Jochen Sang
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Publication number: 20020038642Abstract: A switchable, hydraulic support element (1) requiring only a small design space is proposed. For achieving this, a bore (16) for a slide (23) is arranged laterally of a pressure piston (10) of a hydraulic clearance compensation element (11) in the inner element (7) and is configured as a pocket bore. This dispenses with the stacked arrangement of the bore in the inner element and the clearance compensation element on top of each other as seen in prior art. At the same time, the slide (23) is installed in a housing (19) that extends in the cylinder head (5).Type: ApplicationFiled: September 5, 2001Publication date: April 4, 2002Inventors: Michael Haas, Bodo Rorig, Dieter Schmidt, Joachim Seitz
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Publication number: 20020038636Abstract: The invention proposes a switchable support element (1) requiring only a small design space. For this purpose, a slide (12) that serves to couple an inner element (6) to an outer housing (3) in the support element (1) is positioned laterally in a housing (2) arranged in the cylinder head (5). At the same time, a bore (8) in the inner element (6) for the slide (12) is made as a pocket bore, the housing (2) being seated through an annular extension (11) directly in a bore (9) of the outer housing (3). The slide (12) can be displaced electromagnetically or hydraulically in at least one direction.Type: ApplicationFiled: September 5, 2001Publication date: April 4, 2002Inventors: Michael Haas, Bodo Rorig, Dieter Schmidt, Joachim Seitz
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Patent number: 4656549Abstract: A tape cassette is provided with a pressure plate spring which has a tape-length indication comprising indicator elements which have been cut in or cut out mechanically. Advantageously, both long arms possess such indicators, which may even be of different types. In a particularly advantageous spring shape, one long spring arm has an edge possessing incisions and the other long spring arm has an edge possessing projections, as a result of which the springs can be arranged for punching in such a way that waste is avoided.Type: GrantFiled: December 13, 1984Date of Patent: April 7, 1987Assignee: BASF AktiengesellschaftInventors: Klaus Schoettle, Heinz Berger, Herbert Dietze, Joachim Seitz