Eaton Corporation

International Engine Intellectual Property Company, LLC

David Yee

James Edward McCarthy, Jr

Dale Arden Stretch

Douglas John Nielsen

John Trublowski

Mark Anthony Quintel

John Albert Kovacich

Karen Evelyn Bevan

Jacques F Nicole

Martin Pryor

David Sheridan

Jiyang Yan

Xubin Song

Dmitry Arie Shamis

Bret Robert Armanini

Evan Grimm

An apparatus for measuring at least one of temperature and pressure within a cylinder of an internal combustion engine can include an engine valve and a sensor. The internal combustion engine can include a valvetrain having rocker arm assembly, a camshaft, a valve, and a hydraulic lash adjuster. The engine valve can have a valve head and a valve stem extending from the valve head in an axial direction. The valve head can have a valve face configured to be in pressure communication with an engine cylinder. The valve stem can have an outer surface with a cylindrical portion and a variably-shaped portion. The variably-shaped portion can define a target detectable by the sensor and the sensor can be installed adjacent to the target. Alternatively, the sensor can be positioned to detect a level of force at some point along the valvetrain.

Detection apparatus for at least one of temperature and pressure in a cylinder of an internal combustion engine

A sealing arrangement for sealing a quartz tube with a UV lamp therein and electrical cable extending therefrom through the lid of a pressurized fluid purification vessel. In one version, a tubular fitting, threaded on opposite ends, is received over an end of the quartz tube and threadedly engaged in an aperture in the lid and sealed with a first annular seal, a second annular seal in the tubular fitting seals about the quartz tube. A compression nut with an axial extension threadedly engages the opposite end of the tubular fitting and a strain/flexure relief is threaded into the axial extension. In a second version, the second annular seal comprises a flexible sleeve with a member having resilient radially deflectable fingers compressed thereon by a compression nut; and, duplicates of these parts employed to seal about the electrical cable.

Sealing about a quartz tube

A soot resistant and efficient diesel fuel reformer for a diesel exhaust aftertreatment system has serially arranged first and second catalyst supports. The first support is nearer the inlet and has a monolith structure that is uniform in the direction of flow. The second support has a modified monolith structure that is non-uniform in the direction of flow. Preferably, the first support has straight channels. Preferably, the second support has internal leading edges spaced periodically through its length to break up the flow. The first support has a catalyst coating comprising at least an oxidation catalyst. The second support has a catalyst coating comprising at least a steam reforming catalyst.

Soot resistant diesel fuel reformer for diesel engine emissions aftertreatment

A diesel exhaust aftertreatment system comprises an LNT within an exhaust line. A low thermal mass DPF and a low thermal mass fuel reformer are configured within the exhaust line upstream from the LNT. A thermal mass is configured downstream from the fuel reformer and the DPF, but upstream from the LNT. For LNT denitration, the fuel reformer is rapidly heated and then used to catalyze steam reforming. The DPF is also rapidly heat each time the fuel reformer is heated and the LNT denitrated. The system operates to regenerate the DPF each time the LNT is denitrated. Preferably, a second DPF is provided to augment the performance of the first DPF. Preferably, the first DPF is small and of the flow through type whereas the second DPF is much larger and of the wall flow filter type. The second DPF can be used as the thermal mass.

System and method for coupled DPF regeneration and LNT DeNOx

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West Bloomfield, MI, United States of America

David Yee