Cummins Inc.

Fahim Ismail Patel

James Alexander McEwen

Matthew J Purdey

Christopher Parry

George E Sandford

James Alexander Mcewen

Martin Selway

Donald E Willey

Lee J Curtis

Thomas Roberts

Robin Daniels

Henry David Lambton Carr

Lisa Jane Hill

Levinia Mathews

Thomas Hulson

Dave Lee

Kevin Franks

Jonathan Wilson

Matthew Whittlesea

Stephen Caddy

Lee Curtis

There is provided a seal assembly comprising: a first component and a second component spaced apart from the first component so as to define a passage for the transfer of fluid from an inlet of the seal assembly to an outlet of the seal assembly, wherein the first component comprises a concavity at least partially defining the passage, and wherein no part of the second component extends into the portion of the passage bounded by the concavity.

Seal assembly

A turbocharger shaft interconnects the compressor impeller and the turbine wheel and a bearing housing between the compressor and turbine houses a bearing assembly supporting the turbocharger shaft rotation. A shaft bore defined in at least one of the compressor, turbine or bearing housings receiving the shaft. A sealing arrangement for restricting leakage of lubricant along the shaft bore from the bearing housing to the compressor or turbine housing. The sealing arrangement comprises at least one sealing ring around the shaft in the shaft bore and a gas passage communicating with the shaft bore. A gas distribution circuit includes a valve movable between a first position in which gas passage is in communication with a gas supply path for supplying gas to the shaft bore and a second position in which the gas passage is in communication with a vent path for venting gas from the shaft bore.

Turbocharger

Growing community of inventors

Dewsbury, United Kingdom

Fahim Ismail Patel