Caterpillar Inc.

Daniel Richard Barb

Craig Phillip Hittle

Ronald P Maloney

Scott A Chockley

Christopher Reed

Md Anwarul Karim

Anwarul Karim

Steve Burch

Tim Alcenius

Robert A Sarsfield

An exhaust conduit having a wall with an inner surface that at least partially defines a flow channel, a first fin positioned within the flow channel and attached to the inner surface, a second fin positioned within the flow channel and attached to the inner surface such that the first fin is spaced apart from the second fin. A support strip is attached to the inner surface, attached to the first fin at a first location spaced apart from the inner surface, and attached to the second fin at a second location spaced apart from the inner surface.

Exhaust conduit with a flow conditioning portion

A modular exhaust manifold includes a plurality of exhaust manifold segments coupled together along a common axis. Exhaust manifold segments include a water jacket tube defining a liquid coolant passage around each of the plurality of exhaust manifold segments. The internal combustion engine also includes a coupling assembly for joining adjacent exhaust manifold segments. The coupling assembly includes a plurality of annular sealing devices configured to fit within a first set of grooves formed on an end portion of a first exhaust manifold segment. The coupling assembly also includes a spacing collar configured to attach to the end portion of the first exhaust manifold segment and couple with a fixed radial flange formed on an adjacent end portion of a second exhaust manifold segment to join the first exhaust manifold segment and the second exhaust manifold segment.

Water cooled exhaust manifold

An internal combustion engine includes a cylinder block defining at least one cylinder, and a cylinder head coupled to the cylinder block. A modular exhaust manifold is coupled to the cylinder head and is configured to receive exhaust gas from the cylinder head. The modular exhaust manifold includes a plurality of exhaust manifold segments coupled together along a common axis. Each of the exhaust manifold segments includes a segment of a water jacket tube defining a plurality of liquid coolant passages and a segment of an exhaust tube received within the water jacket tube segment. A joint between adjacent exhaust manifold segments includes a first sealing member configured to seal the exhaust tube at the joint and a second sealing member configured to seal at least one of the liquid coolant passages at the joint. The first and second sealing members are supported on and movable with different components.

Modular exhaust manifold with independent sealing of exhaust tube and coolant passage

Growing community of inventors

Germantown Hills, IL, United States of America

Daniel Richard Barb