Gm Global Technolgoy Operations, Inc.

Chijou Wang

Rahul Mital

Jianwen Li

James B Rodgers

Carnell E Williams

Luciano Nunziato Di Perna

Su Jung Han

Grant William Brady

Julie A Swartz

Ian A May

Fengkun Wang

Kimberly O'Kane

Gary Clark, Ii

Maxwell Tyler Doiron

A compressor assembly includes a compressor housing having an inlet port configured to receive intake air and an outlet port configured to discharge pressurized air. A hollow section having an inner radial surface defines the inlet port of the compressor housing. A compressor wheel is disposed in the hollow section. A positive crankcase ventilation (PCV) passage is configured to allow airflow between a crankcase of an engine and the hollow section of the compressor housing. The PCV passage has an outlet opening that opens into the hollow section of the compressor housing and the inner radial surface includes an integrally formed raised boss surrounding the outlet opening and protruding into the hollow section.

Compressor housing PCV for reducing crankcase pressure

A turbocharger including a compressor section having a compressor housing with an air inlet and a compressor air discharge and a compressor wheel in the compressor housing. A turbine section having a turbine housing with an exhaust gas inlet and a turbine exhaust gas outlet and a turbine wheel in the turbine housing, the turbine wheel being drivingly connected to the compressor wheel, the exhaust gas inlet being configured to be connected to an engine exhaust passage and the turbine exhaust gas outlet being configured to be connected to an exhaust system. The compressor housing includes a diffuser with a recess that receives the compressor wheel wherein the recess has a sidewall with an upper edge and the compressor wheel has a base plate with an upper surface that is below the upper edge of the sidewall of the recess in the diffuser.

Recessed compressor wheel for turbocharger oil leakage mitigation

A turbine wheel for a turbocharger of a vehicle propulsion system includes a central hub and a plurality of blades extending outwardly from the central hub. Each of the blades defining an inducer section and an exducer section, and each of the blades including a first surface portion and a second surface portion. The first surface portion including a thermal barrier coating and the second surface portion free from the thermal barrier coating.

Thermal barrier coated vehicle turbocharger turbine wheel

A compressor includes a compressor impeller configured to rotate about an axis of rotation as intake gases flow along the compressor impeller. The compressor impeller includes an inducer and an exducer. The compressor impeller defines a first impeller end at the inducer and a second impeller end at the exducer. The second impeller end extends along a radial axis. The compressor further includes a compressor housing encasing the compressor impeller. The compressor housing defines a compressor volute. The compressor housing partially defines a diffuser in fluid communication with the compressor volute. The diffuser is elongated along a diffuser axis. The diffuser axis is obliquely angled relative to the axis of rotation. The diffuser axis is obliquely angled relative to the radial axis to minimize a turbulence of the intake gases flowing from the diffuser to the compressor volute.

Centrifugal compressor with inclined diffuser

A snorkel assembly for reading optimization of a sensor, wherein the snorkel assembly may be configured to be positioned around and spaced apart from the sensor. The snorkel assembly may include an upstream side and a downstream side. The snorkel assembly may include a cup section and a tube section extending from the cup section. The tube section may include an inlet opening on the upstream side of the snorkel assembly. The cup section may include an exhaust opening on the downstream side of the snorkel assembly.

Plug-in NOx sensor snorkel for reading optimization under packaging constraints

An exhaust system for a diesel engine, includes an exhaust passage adapted to be attached to the diesel engine. A diesel oxidation catalyst is provided in the exhaust passage along with a selective catalyst reduction device disposed downstream from the diesel oxidation catalyst. A diesel exhaust fluid mixing system includes a diesel exhaust fluid injection nozzle and a mixing device defining a single inlet opening and a single outlet opening connected to one another by a partial spiral flow passage. The diesel exhaust fluid injection nozzle injects diesel exhaust fluid directly into the inlet opening of the partial spiral flow passage.

Diesel exhaust fluid mixing system for a linear arrangement of diesel oxidation catalyst and selective catalytic reduction filter

An assembly for mixing liquid within a gas flow includes a hollow conduit that is configured for containing a flow of gas and liquid droplets. The assembly also includes multiple spaced blades and an impingement element. Each of the blades is operatively connected to and extends from the impingement element and is connected to an inner wall of the conduit. The impingement element is upstream of the blades in the flow of gas. The impingement element and the blades are configured to create a preferred distribution of the liquid droplets within the gas flow downstream of the blades within the conduit.

Assembly for mixing liquid within gas flow

An exhaust system comprises an exhaust driven turbocharger having an outlet and a flanged portion that extends about the outlet, an exhaust treatment device comprising a canister having an inlet cone that includes an integral inlet flange defining an the inlet opening configured to define a seal with the flanged portion that extends about the outlet of the turbocharger and a substrate disposed within the canister through which the exhaust gas flows. An exhaust gas passage, fluidly couples the turbocharger and the exhaust treatment device and allows for the passage of exhaust gas therebetween and a flow modifier comprising a radially inwardly extending wall portion extends from an inner wall of the exhaust gas passage and directs the exhaust gas away from an outer radius of the exhaust gas passage to evenly distribute the exhaust gas across the an inlet face of the substrate.

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Farmington Hills, MI, United States of America

Chijou Wang