Cummins Inc.

Cummins Turbo Technologies Limited

Nicholas Kenneth Sharp

Samuel C Geckler

Anthony Kyle Perfetto

Adrian P Dale

Stephen E Garrett

Jeffrey Carter

James Alexander McEwen

Craig Stuart Thornhill Hasler

Michael David Dolton

Matthew Mills

Alan Haigh

Atif Mahmood

David Scott

Nicholas Browning

Thomas Ogilvie

A variable geometry turbine comprising: a wheel supported for rotation about an axis; a housing comprising a first volute for receiving gas from a first source and a second volute for receiving gas from a second source; the first and second volutes being separated by a dividing wall; and an inlet passageway surrounding the wheel and fluidly connected to the volutes; the inlet passageway at least partially defined between a first wall and an opposite second wall, the first wall being moveable along the axis to vary the size of the inlet passageway; wherein a tip of the dividing wall defines a first radius relative to the axis, and a radially outermost part of the first wall positioned within the inlet passageway defines a second radius relative to the axis, and wherein the first radius is at least around 1% larger than the second radius.

Turbine

An adapter element for a turbine is disclosed. The adapter element defines a longitudinal axis and comprises a first connection portion, a second connection portion, an outer wall and a dosing structure. The first connection portion is configured to engage the turbine. The second connection portion is configured to engage a conduit. The outer wall extends between the first and second connection portions, the outer wall defining an inner surface and an outer surface. The dosing structure is configured to receive, and expel, reductant.

A turbine bypass valve comprising: a casing defining first and second casing ports; and a valve cartridge mounted to the casing; wherein the valve cartridge comprises: first and second valve ports; and a valve member, the valve member being movable between a first position in which there is a flow path between the first and second valve ports, and a second position in which the valve member substantially blocks said flow path between the first and second valve ports; and wherein the valve cartridge is mounted to the casing such that the first valve port is aligned with the first casing port, and the second valve port is aligned with the second casing port.

Valve

A unique engine system has an engine with a dedicated exhaust gas recirculation cylinder, an EGR system that receives exhaust gas from the dedicated cylinder, and a turbocharger having turbine inlet ports in fluid communication with other engine cylinders via a plurality of exhaust passages. At least two of the exhaust passages are substantially isolated from each other. Other embodiments include apparatuses, systems, devices, hardware, methods, and combinations for engines and engine systems.

Engine systems and methods for operating an engine

A compressor comprises a housing defining an inlet, a volute, an outlet, and a compressor chamber between the inlet and the outlet within which a compressor wheel is rotatably mounted. The housing has discrete attached first and second housing portions, the first housing portion defining at least part of the inlet and the second housing portion defining at least part of a volute of the outlet. The first housing portion has a conductive element for conducting an electric signal and a second sensor arrangement in sensing communication with the inlet. The compressor further comprises a first sensor arrangement, the first sensor arrangement being configured such that it is in sensing communication with the volute or outlet and such that it is electrically connected to the conductive element.

Compressor comprising a sensor arrangement

A compressor housing defines a gas inlet flow path and a gas outlet and a rotatable impeller wheel between the gas inlet flow path and the gas outlet. An inner wall of the housing defines a surface in close proximity to radially outer edges of impeller wheel vanes that sweep across the surface as the wheel rotates. An opening is provided in the inner wall at the surface. A port is provided in the housing in gas communication with the opening for diverting gas in a direction away from the inlet flow path during relatively low flow conditions. A gas displacement device is disposed outside of the inlet flow path and connected to the port, wherein the pump is operable to remove gas selectively through the opening and the port in a direction away from the inlet flow path.

Growing community of inventors

Huddersfield, United Kingdom

Nicholas Kenneth Sharp