Patents by Inventor Olaf Enke
Olaf Enke 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: 11333255Abstract: A valve assembly includes a valve body. The valve body includes a valve seat. The valve seat defines a bore therethrough. The valve body also includes a pair of end members connected to the valve body at opposing sides of the valve body. Each of the pair of end members includes a trunnion. The valve assembly further includes a valve shaft received in the trunnion of each of the pair of end members. The valve assembly includes a valve plate connected to the valve shaft. The valve plate is rotatable between a first position and a second position. The valve plate is adjacent to the valve seat when the valve assembly is in the first position.Type: GrantFiled: June 19, 2019Date of Patent: May 17, 2022Assignee: Tenneco Automotive Operating Company Inc.Inventors: Olaf Enke, Brian A. Kunkel
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Patent number: 10704444Abstract: An injector for injecting a reagent includes an axially translatable valve member positioned within a housing. A flux sleeve is surrounded by a coil of an electromagnet. A pole piece defines a return passageway for reagent to flow. A filter surrounds the pole piece and includes a cage and a mesh fixed to the cage. The cage includes a deformable first seal biasedly engaging an outer surface of the pole piece. The cage includes a second seal biasedly engaging the housing. The first and second seals define a closed volume such that all of the reagent flowing through the injector passes through the mesh.Type: GrantFiled: August 21, 2018Date of Patent: July 7, 2020Assignee: Tenneco Automotive Operating Company Inc.Inventor: Olaf Enke
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Publication number: 20200182358Abstract: A valve assembly includes a valve body. The valve body includes a valve seat. The valve seat defines a bore therethrough. The valve body also includes a pair of end members connected to the valve body at opposing sides of the valve body. Each of the pair of end members includes a trunnion. The valve assembly further includes a valve shaft received in the trunnion of each of the pair of end members. The valve assembly includes a valve plate connected to the valve shaft. The valve plate is rotatable between a first position and a second position. The valve plate is adjacent to the valve seat when the valve assembly is in the first position.Type: ApplicationFiled: June 19, 2019Publication date: June 11, 2020Inventors: Olaf Enke, Brian A. Kunkel
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Patent number: 10655523Abstract: An injector for injecting a reagent includes a first injector body and a second injector body. The first injector body includes an outlet opening. The second injector body includes a reagent tube. The second injector body is movable relative to the first injector body. The injector further includes a valve assembly at least partly enclosed by the first injector body. The valve assembly is configured to selectively dispense the reagent through the outlet opening of the first injector body. The injector further includes a spring member positioned between the first injector body and the second injector body. The spring member is pre-loaded to bias the second injector body towards the first injector body. The spring member is further configured to limit a maximum movement of the second injector body relative to the first injector body in response to expansion of the reagent during freezing.Type: GrantFiled: July 25, 2018Date of Patent: May 19, 2020Assignee: Tenneco Automotive Operating Company Inc.Inventors: Abhijit P Upadhye, Alan Brockman, Olaf Enke, Mark Devito
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Publication number: 20200063624Abstract: An injector for injecting a reagent includes an axially translatable valve member positioned within a housing. A flux sleeve is surrounded by a coil of an electromagnet. A pole piece defines a return passageway for reagent to flow. A filter surrounds the pole piece and includes a cage and a mesh fixed to the cage. The cage includes a deformable first seal biasedly engaging an outer surface of the pole piece. The cage includes a second seal biasedly engaging the housing. The first and second seals define a closed volume such that all of the reagent flowing through the injector passes through the mesh.Type: ApplicationFiled: August 21, 2018Publication date: February 27, 2020Inventor: Olaf ENKE
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Publication number: 20190128256Abstract: A fluid pump includes a gear housing with a pocket wall and a base. The pocket wall and the base define a pocket that projects into the gear housing from a pocket surface. The fluid pump also includes a first gear rotatably positioned in the pocket. The first gear is spaced from the pocket surface by a first gap. The fluid pump also includes a second gear rotatably positioned in the pocket that engages the first gear. The second gear is spaced from the pocket surface by a second gap. The fluid pump also includes a selected shim that is selected from a plurality of shims in a shim set. The selected shim has a thickness that results in a desired clearance between the selected shim and the first face or the second face.Type: ApplicationFiled: October 30, 2017Publication date: May 2, 2019Inventor: Olaf ENKE
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Publication number: 20180328250Abstract: An injector for injecting a reagent includes a first injector body and a second injector body. The first injector body includes an outlet opening. The second injector body includes a reagent tube. The second injector body is movable relative to the first injector body. The injector further includes a valve assembly at least partly enclosed by the first injector body. The valve assembly is configured to selectively dispense the reagent through the outlet opening of the first injector body. The injector further includes a spring member positioned between the first injector body and the second injector body. The spring member is pre-loaded to bias the second injector body towards the first injector body. The spring member is further configured to limit a maximum movement of the second injector body relative to the first injector body in response to expansion of the reagent during freezing.Type: ApplicationFiled: July 25, 2018Publication date: November 15, 2018Inventors: Abhijit P Upadhye, Alan Brockman, Olaf Enke, Mark Devito
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Patent number: 7900604Abstract: A dampening stop pin that reduces a needle velocity at the time when the needle valve of a fuel injector is about to be seated in a closed position. A gap between a bottom surface of the stop-pin flange and a sealing seat of a nozzle is provided to compress the fuel trapped therein to form a fuel cushion that dampens the closing motion of the needle. Moreover, a diametrical clearance between an outer circumferential edge of the flange and an inner surface of a needle spring cage must be sized to prevent undesired high pressure from building up in the gap by venting a quantity of compressed fuel while still permitting the fuel cushion to dampen the closing force of the needle.Type: GrantFiled: June 15, 2006Date of Patent: March 8, 2011Assignee: Siemens Diesel Systems TechnologyInventor: Olaf Enke
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Publication number: 20060283984Abstract: A dampening stop pin that reduces a needle velocity at the time when the needle valve of a fuel injector is about to be seated in a closed position. A gap between a bottom surface of the stop-pin flange and a sealing seat of a nozzle is provided to compress the fuel trapped therein to form a fuel cushion that dampens the closing motion of the needle. Moreover, a diametrical clearance between an outer circumferential edge of the flange and an inner surface of a needle spring cage must be sized to prevent undesired high pressure from building up in the gap by venting a quantity of compressed fuel while still permitting the fuel cushion to dampen the closing force of the needle.Type: ApplicationFiled: June 15, 2006Publication date: December 21, 2006Inventor: Olaf Enke
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Patent number: 6938880Abstract: The injection valve has a housing, a nozzle body and a clamping nut connected to the housing that contacts the nozzle body with first contact surface (9) acting on a second contact surface (10), whereby the clamping nut clamps the nozzle body against the housing. The first or second contact surface has a curvature (24) towards the second or first contact surface and the both contact surfaces are in contact in the area of the curvature.Type: GrantFiled: May 27, 2004Date of Patent: September 6, 2005Assignee: Siemens AktiengesellschaftInventors: Olaf Enke, Günter Lewentz, Alwin Perras, Andreas Voigt, Hakan Yalcin
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Publication number: 20040217321Abstract: The injection valve has a housing, a nozzle body and a clamping nut connected to the housing that contacts the nozzle body with first contact surface (9) acting on a second contact surface (10), whereby the clamping nut clamps the nozzle body against the housing. The first or second contact surface has a curvature (24) towards the second or first contact surface and the both contact surfaces are in contact in the area of the curvature.Type: ApplicationFiled: May 27, 2004Publication date: November 4, 2004Inventors: Olaf Enke, Gunter Lewentz, Alwin Perras, Andreas Voigt, Hakan Yalcin
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Patent number: 6799748Abstract: The injection valve has a housing, a nozzle body and a clamping nut connected to the housing that contacts the nozzle body with first contact surface (9) acting on a second contact surface (10), whereby the clamping nut clamps the nozzle body against the housing. The first or second contact surface has a curvature (24) towards the second or first contact surface and the both contact surfaces are in contact in the area of the curvature.Type: GrantFiled: October 14, 2002Date of Patent: October 5, 2004Assignee: Siemens AktiengesellschaftInventors: Olaf Enke, Günter Lewentz, Alwin Perras, Andreas Voigt, Hakan Yalcin
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Publication number: 20030085304Abstract: The injection valve has a housing, a nozzle body and a clamping nut connected to the housing that contacts the nozzle body with first contact surface (9) acting on a second contact surface (10), whereby the clamping nut clamps the nozzle body against the housing. The first or second contact surface has a curvature (24) towards the second or first contact surface and the both contact surfaces are in contact in the area of the curvature.Type: ApplicationFiled: October 14, 2002Publication date: May 8, 2003Inventors: Olaf Enke, Gunter Lewentz, Alwin Perras, Andreas Voigt, Hakan Yalcin