Gm Global Technolgoy Operations, Inc.

Roman Mudel

Robert J Moran

Iain J Read

Louis P Begin

Thomas Richard Durkin

Julie A Swartz

Brian J Edwards

Jessica L Krajenke

Robert Bielas

Provided herein are anti-rattle devices, and turbocharger wastegate assemblies including the same. The anti-rattle devices can include an elongated body having a first end and a second end, a first bend, wherein the first bend and the first end define a first section of the body, a second bend, wherein the first bend and the second bend define a second section of the body, and the second bend and the second end define a third section of the body, a first cavity defined by the first section, the first bend, and the second section, a second cavity defined by the second section, the second bend, and the third section, a first aperture positioned in the first section of the body; and a second aperture extending between the second section and the third section. The anti-rattle devices can mate with a turbocharger wastegate assembly and provide anti-rattling benefits.

Anti-rattle devices and turbocharger wastegate assemblies including the same

A turbocharger for an internal combustion engine includes a rotating assembly having a turbine wheel disposed inside a turbine housing and a compressor wheel disposed inside a compressor cover. The turbocharger also includes a waste-gate assembly configured to selectively redirect at least a portion of the engine's post-combustion gases away from the turbine wheel. The waste-gate assembly includes a valve, a rotatable shaft connected to the valve, and a bushing fixed relative to the turbine housing and disposed concentrically around the shaft such that the shaft rotates inside the bushing for opening and closing the valve. The bushing is defined by a length, an outer surface in contact with the turbine housing, and an inner surface in contact with the shaft. The inner surface includes a plurality of longitudinal grooves configured to counteract friction between the bushing and the shaft and avoid seizure of the shaft relative to the bushing.

Turbocharger waste-gate valve bushing

Exemplary embodiments of the present invention are directed towards an apparatus and method for fluidly coupling a turbocharger to an internal combustion engine. In one embodiment, a turbocharger mount for fluidly coupling a turbocharger to an exhaust system of an engine is provided. The turbocharger mount includes a housing portion and a mounting flange extending from the housing portion. The housing portion defines a cavity therein and a first inlet opening in fluid communication with the cavity, a first outlet opening in fluid communication with the cavity, and a second outlet opening in fluid communication with the cavity.

Turbocharger mount with integrated exhaust and exhaust gas recirculation connections

Exemplary embodiments of the present invention are directed towards a turbocharger for an internal combustion engine and more particularly an apparatus and method for fluidly coupling a turbocharger with an internal combustion engine. In one embodiment a turbocharger housing is provided. Turbocharger housing includes a turbine housing defining a volute chamber. The turbocharger housing also includes a first housing support extending from the turbine housing. The first housing support is integrally formed with the turbine housing and the first housing support defines an inlet opening and an outlet opening each of which are in fluid communication with the volute chamber.

Turbocharger housing with integral inlet and outlet openings

An assembly for connecting a component having a base to a surface includes a fastener and a retainer having a clamp portion for capturing a shank of the fastener, and for aligning the fastener and an optional gasket with the base. The retainer automatically separates from the fastener when the fastener is tightened, and may include a recovery feature to allow recovery of the retainer after separation. A method for facilitating connection of a component and gasket to a surface includes inserting a threaded fastener into a base of the component, capturing the fastener within a clamp portion of a retainer, and positioning a surface of the retainer adjacent to the base. A tab portion of a gasket or the base can be inserted into a slot in the retainer to thereby secure the retainer to the base prior to connecting the component to the surface.

Growing community of inventors

Novi, MI, United States of America

Roman Mudel