Cummins Inc.

Cummins Intellectual Property, Inc.

Cummins Power Generation Inc.

Alex Edward Priestley

Jason Robert Griffin

Stephen Sunadh Gidla

Paul Douglas Free

Peter Vinson Woon

Joseph Scot Roederer

David Paul Genter

Keith A Gunter

Gregory S Franks

Michael T Stanley

Ryan Nelson Knight

Simon Anthony Burge

Benjamin Dodman

John Mathias Winter, Ii

Ryan Vincent Larcom

Edwin B Hopkins, Iii

Lucy Anne Baker

Rodney Lee Steele

Adrian Constantin Ciobota

Jordan B Pitcher

Keith Edward Barber

Timothy Andrew Solzak

A valve spring retainer for an internal combustion engine includes a body having a lower portion and an upper portion. The lower portion defines a radial flange and a first opening extending axially therethrough. The upper portion includes a first wall and a re-entrant lip. The first wall extends at least partially axially away from an outer perimeter edge of the radial flange. Together, the first wall and the radial flange define an open reservoir for receiving and retaining oil therein. The re-entrant lip extends from an outer end of the first wall at least partially radially inward toward a central axis of the first opening. The re-entrant lip extends over a portion of the reservoir defined by the first wall and the radial flange.

Valve spring retainer incorporating lubrication oil trap

An intake manifold is provided that controls swirl on entry to a combustion chamber. Each intake manifold includes a fin or rib portion positioned to reduce or eliminate swirl induced by the configuration of the intake manifold, particularly when used in a large engine having a left bank and a right bank of combustion chambers. By controlling swirl induced by the intake manifold, swirl consistency is improved between engine cylinders and between the left bank and the right bank, improving the consistency of power output and reducing emissions, particularly particulate emissions, also called smoke.

Air intake system for internal combustion engine

Engine

Growing community of inventors

Warwickshire, United Kingdom

Alex Edward Priestley