Patents by Inventor John J. Krieg
John J. Krieg 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: 7252059Abstract: A closure assembly for a camshaft phaser. A plug or a cap is provided with either a radially-sealing gasket seal or a face-sealing gasket seal, the seal being formed by insertion of the plug into a bore, or by installation of a cap over a neck formed in a cover plate. The closure is provided with a plurality of spaced-apart locking elements, and the plate is provided with a plurality of spaced-apart, radially extending second locking elements in the form of fingers surrounding a central opening. During assembly, the closure is mated to the plate with the first locking elements interspersed with the second locking elements. The closure is rotated to bring the locking elements into locking engagement with each other, preventing counter-rotation of the closure. No threads or torque specifications are required.Type: GrantFiled: May 17, 2005Date of Patent: August 7, 2007Assignee: Delphi Technologies, Inc.Inventors: Larry G. Abbott, David M. McCarthy, Peter R. Charles, John J. Krieg
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Patent number: 6755167Abstract: A two-step roller finger follower including an elongate body having side walls defining coaxially disposed shaft orifices, a pallet end and a socket end interconnecting with the side walls to define a slider arm aperture, and a latch channel. The socket end is mountable to an hydraulic lash adjuster, and the pallet end is matable with a valve stem. A slider arm for engaging a high-lift cam lobe is disposed in the slider arm aperture and has a first end pivotably mounted to the pallet end of the body and the second end forming a slider tip for engaging an activation/deactivation latch. The latch is slidably disposed in the latch channel, and the latch has a nose section for selectively engaging the slider tip. A spool-shaped roller having first and second roller elements fixedly attached to the shaft is rotatably disposed in the shaft orifices, the roller being adapted to follow the surface motion of low-lift cam lobes.Type: GrantFiled: November 27, 2002Date of Patent: June 29, 2004Assignee: Delphi Technologies, Inc.Inventors: John J. Krieg, Timothy W. Kunz, Nick J. Hendriksma, Wayne S. Harris, James A. Niemeier, Jongmin Lee, Hermes Fernandez, Joseph F. Girtler
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Publication number: 20030159666Abstract: A two-step roller finger follower including an elongate body having side walls defining coaxially disposed shaft orifices, a pallet end and a socket end interconnecting with the side walls to define a slider arm aperture, and a latch channel. The socket end is mountable to an hydraulic lash adjuster, and the pallet end is matable with a valve stem. A slider arm for engaging a high-lift cam lobe is disposed in the slider arm aperture and has a first end pivotably mounted to the pallet end of the body and the second end forming a slider tip for engaging an activation/deactivation latch. The latch is slidably disposed in the latch channel, and the latch has a nose section for selectively engaging the slider tip. A spool-shaped roller having first and second roller elements fixedly attached to the shaft is rotatably disposed in the shaft orifices, the roller being adapted to follow the surface motion of low-lift cam lobes.Type: ApplicationFiled: November 27, 2002Publication date: August 28, 2003Inventors: John J. Krieg, Timothy W. Kunz, Nick J. Hendriksma, Wayne S. Harris, James A. Niemeier, Jongmin Lee, Hermes Fernandez, Joseph F. Girtler
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Patent number: 5245958Abstract: An improved direct acting hydraulic valve lifter (DAHVL) has features including reduced dead oil storage with lower mass and faster filling, improved air venting, internal oil recirculation and targeted oil supply that combine to reduce the presence of air in the lifter. Foam filling and baffle reconfiguration are included among means for reducing stored oil volume which can also improve the follower cylinder support. Means for venting along the piston and cylinder of the lifter are shown. The various features combine to limit air intake and to more quickly expel air which does enter the lifter.Type: GrantFiled: June 8, 1992Date of Patent: September 21, 1993Assignee: General Motors CorporationInventors: John J. Krieg, Lucille A. E. Gotham, Wayne S. Harris
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Patent number: 5230308Abstract: A direct acting hydraulic valve lifter features in a preferred embodiment a follower assembled with a thin wall metal shell and a light plastic baffle to support a lash adjusting hydraulic element assembly. An inlet riser chamber has sufficient cross section to minimize oil flow restriction in cold oil conditions. Dead space between the shell and baffle is filled with a strong lightweight foam to support and retain the baffle and displace oil for low mass.Type: GrantFiled: November 17, 1992Date of Patent: July 27, 1993Assignee: General Motors CorporationInventors: Daniel G. Gauthier, Donald G. Engel, John J. Krieg, Michael J. Warden, Werner Herrmann, Richard K. Donoghue, Gary J. De Angelis
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Patent number: 5119774Abstract: An improved direct acting hydraulic valve lifter (DAHVL) has features including reduced dead oil storage with lower mass and faster filling, improved air venting, internal oil recirculation and targeted oil supply that combine to reduce the presence of air in the lifter. Foam filling and baffle reconfiguration are included among means for reducing stored oil volume which can also improve the follower cylinder support. Means for venting along the piston and cylinder of the lifter are shown. The various features combine to limit air intake and to more quickly expel air which does enter the lifter.Type: GrantFiled: November 8, 1990Date of Patent: June 9, 1992Assignee: General Motors CorporationInventors: John J. Krieg, Lucille A. E. Gotham, Wayne S. Harris
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Patent number: 5070827Abstract: Low mass hydraulic and mechanical valve lifters are shown and described. The lifters are of oblong configuration for reduced mass, with straight or narrowed sides connecting longitudinally spaced ends having depending semi-cylindrical end walls that are received in similarly shaped end portions of lifter gallery openings to absorb all longitudinal and lateral side loads. The lifters are preferably made by investment casting of steel alloys. The investment casting permits the use of thin semi-cylindrical walls at each end of the valve lifters which also have internal reinforcing ribs extending on their undersides.Type: GrantFiled: April 1, 1991Date of Patent: December 10, 1991Assignee: General Motors CorporationInventors: John J. Krieg, Christopher M. De Minco, Steven F. Lowe, Wayne S. Harris, Michael J. Fox
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Patent number: 4254749Abstract: A hydraulic advance device for selectively transmitting applied forces to a fuel injector of an internal combustion engine. The device is operative to select a normal or advanced timing of the fuel injection. An outer cylindrical body (66) is mounted in the upper end of a fuel injector adapter. An inner body (108) is slidably received in an outer body and a reaction member (103) and pressure responsive plunger (117) are slidably received in a bore formed in the inner body. The plunger and the bore cooperate to define a fluid chamber (128). A one-way valve (132) in the chamber permits fluid above a predetermined pressure applied during the advanced stage of the fuel injection cycle to enter the chamber which prevents movement of the plunger relative to the inner body member.Type: GrantFiled: March 23, 1979Date of Patent: March 10, 1981Assignee: Eaton CorporationInventors: John J. Krieg, George A. Hillebrand
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Patent number: 4228771Abstract: A hydraulic lash adjuster for valve gear of an internal combustion engine, the lash adjuster being of the type which operates from oil received under pressure from a gallery provided in the engine lubricant supply system. The body of the adjuster has a movable plunger with a one-way check valve for admitting and retaining oil in a chamber between the adjuster body and the plunger. A portion of the plunger includes a pivot surface for pivotally engaging associated components of the valve gear with a reservoir formed in the plunger which communicates with a one-way valve for admitting oil to the chamber. An inlet metering means including an annular metering land provides exclusive lubricant communication to the reservoir from an oil entry port in the body.Type: GrantFiled: February 28, 1978Date of Patent: October 21, 1980Assignee: Eaton CorporationInventor: John J. Krieg
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Patent number: 4227495Abstract: A hydraulic lash adjuster for valve gear of an internal combustion engine, the hydraulic lash adjuster being of the type which operates from oil received under pressure from a gallery provided in the engine lubricant supply system to compensate for lash in the valve train. The body of the lash adjuster has a movable plunger assembly provided therein including upper and lower plunger members each having a bore therein which define upper and lower fluid reservoirs, respectively. A one way check valve is located between the lash adjuster body and the lower plunger member. A thin walled, cup shaped metal separator is received in the lower end of the upper plunger member for fluidly isolating the fluid reservoirs. The separator member is held in place by a plurality of outwardly turned retaining tabs extending from the open end thereof which engage the upper end of the lower plunger member. Annular metering passages meter the pressurized engine oil for supplying fluid to the lower and upper fluid reservoirs.Type: GrantFiled: September 21, 1978Date of Patent: October 14, 1980Assignee: Eaton CorporationInventor: John J. Krieg