Caterpillar Inc.

Caterpiller Inc.

Kevin L Martin

Paul Arthur Zwart

Aaron Kenneth Amstutz

David J Colantoni

Andrew Michael Denis

Stephen John Pierz

James John Callas

Satya Ramakrishna Manda Venkata Naga

Thomas Marshall Congdon

Jason Grant Jura

Thierry Andre Marchione

Nick William Biggs

Mikhail A Sorokin

Maria Cristina Herrera De Kontz

Ryan Antony Lozier

Michael Charles Marstall

Bryant Alan Morris

Lonnie J Devier

Michael J Campagna

Thomas Michael Sopko, Jr

Andrew J Tonsor

David C Copley

Jeremy Roe Hammar

Brian C Howson

Carl H Rempert

Ronald L Dupree

Daniel Raymond Hettinger

Corey Allen Kauk

Cody P Renshaw

Vivek Sundararaj

Glen A Spindel

Nainesh Parmar

Qiaoyu Lu

Timothy J Weirich

Ramakrishna V Manda

Andrea Burgess Tognetti

Kyle Schmitt

Kevin D Kempa

Steven R Storm

Matthew R Boettcher

Rohit A Bhapkar

Dwight E Elliott

Brandon Dykstra

Jose Mauricio Tuschi

A spool for a spool valve assembly defines a spool longitudinal axis and includes a first land module defining a first land module circumferential surface, a second land module defining a second land module circumferential surface, and a first metering module. The first metering module has a first end cap and a second end cap. The first end cap is coupled to the first land module, and the second end cap is coupled to the second land module, to form the spool. The first metering module may further include at least two pillars extending from the first end cap to the second end cap, wherein the at least two pillars are entirely disposed within a virtual first metering module hollow cylinder area that surrounds a virtual first metering module central core area concentric with the spool longitudinal axis.

Spools for spool valve assemblies and methods of fabricating spools

A method of manufacturing a hydraulic valve component using additive manufacturing includes laying successive layers to form a flow aperture for a hydraulic valve component, and creating a lattice or mesh structure that at least partially defines the flow aperture of the hydraulic valve component, or a feature that forms an undercut along a direction that is parallel to a flow direction of the flow aperture, or a flow aperture having a size varying along a circumferential direction of the valve component.

Additively manufactured hydraulic valve components

A nozzle including a first end and a second end. The first end includes at least a first inlet and a second inlet and the second end includes a plurality of outlets. An exterior surface extends from the first end to the second end of the nozzle. A plurality of vanes are disposed on the exterior surface and extend from the first end to the second end of the nozzle. A plurality of channels form along the exterior surface of the nozzle.

Reductant nozzle with helical channel design

An additive manufacturing method for a part includes forming a pillar by fusing metallic material to form a hollow body portion including a wall having an inner surface and an outer surface and fusing metallic material to form a cap portion extending from a distal end of the body portion. The method includes forming the pillar by fusing metallic material to form a distal portion supported on the cap portion, supporting at least a portion of the part by the pillar, and removing the pillar from the part.

Manufacturing support and method for additive manufacturing process

A nozzle including a first channel, a second channel annularly disposed around the first channel, and a plurality of third channels fluidly connected to the second channel. The nozzle includes an interior cavity having a first inlet fluidly connected to the first channel and a plurality of second inlets. Individual second inlets of the plurality of second inlets fluidly connect to individual third channels of the plurality of third channels. The interior cavity includes an outlet and an impinging surface located opposite the first inlet.

Reductant nozzle with radial air injection

A nozzle including an interior cavity, a structure disposed within the interior cavity, a first channel fluidly connected to the interior cavity, one or more second channels fluidly connected to the interior cavity, and one or more outlets coupled to the interior cavity. The structure includes a bottom impinging surface that is at least partially concave, one or more legs that support the bottom impinging surface, and a top surface located opposite the bottom impinging surface.

Reductant nozzle with concave impinging surface

A nozzle including an exterior surface extending between a first end and a second end of the nozzle. The exterior surface including spray outlets disposed at the second end. An interior cavity is disposed interior to the exterior surface. A first channel and a second channel fluidly connect to the interior cavity. One or more third channels fluidly connect between the interior cavity and an individual spray outlet of the spray outlets. The one or more third channels rotate about a longitudinal axis of the nozzle and angle in a direction away from the longitudinal axis of the nozzle.

Reductant nozzle with swirling spray pattern

A tool for a boring machine includes an elongated elongated body extending longitudinally from a proximal end to a distal end, the distal end being shaped to receive a cutting tip, and a cavity inside the body. The tool includes a lattice provided within the cavity and a powder provided in the cavity with the lattice.

Damped boring bar

An injection apparatus includes an injection mixing platform located within an exhaust pipe; wherein the injection mixing platform includes two or more mixing blades extending radially from a common central hub, at least one of the mixing blades being coupled to a DEF inlet to receive DEF from an external tank, wherein each of the two or more mixing blades includes at least one nozzle to eject the DEF into an exhaust stream, the two or more mixing blades being statically mounted to an inner surface of the exhaust pipe.

Multi-nozzle design to eliminate downstream mixing devices

A snap ring assembly includes a base set. The base set includes a first base section and a second base section. The first base section is adapted to be disposed adjacent and substantially coplanar with respect to the second base section. The snap ring assembly also includes a retaining set. The retaining set includes a first retaining section and a second retaining section. The first retaining section is adapted to be disposed adjacent and substantially coplanar with respect to the second retaining section. Each of the first retaining section and the second retaining section is adapted to be removably coupled to each of the first base section and the second base section.

Snap ring assembly

A heat exchanger comprises a seamless body, and the seamless body may include a substantially cylindrical configuration defining a radial direction, a circumferential direction, a longitudinal axis, a first cylindrical wall and a plurality of fins. Each fin may extend at least partially in the radial direction and helically along the longitudinal axis. Also, each fin may be at least partially hollow defining an internal flow passage, and each fin of the plurality of fins may be at least partially spaced away from an adjacent fin, defining an external flow passage.

3D printed heat exchanger

An electric linear actuator includes include a housing, a puck, an actuator rod, and an electric motor. The puck is contained within the housing and configured for substantially linear motion, within the housing. The actuator rod is capable of being contained, at least in part, within the housing and configured to actuate, in a substantially linear fashion, in response to substantially linear motion of the puck. The electric motor is disposed within the rod and configured to provide mechanical force to cause the substantially linear motion of the puck, within the housing.

Electric powered linear actuator

Urethane tire

Tire shear band

A filter media includes flutes, forward plugs, and aft plugs. Each of the flutes has a forward flute face, an aft flute face, and a flute body defining a flute conduit to convey the fluid. The forward plugs are disposed in alternating ones of the flutes. Each forward plug includes a plug base and an aerodynamic plug nose. The aerodynamic plug nose has a center axis and a nose surface tapering outwardly from the center axis towards the plug base. The plug nose is configured to aerodynamically redirect a flow of the fluid away from the center axis. The flutes that have forward plugs include a flute outlet disposed at the aft flute face. The aft plugs are disposed in the flutes adjacent to the flutes that have corresponding forward plugs. The flutes that have aft plugs include a flute inlet disposed at the forward flute face.

Filter media

Growing community of inventors

Washburn, IL, United States of America

Kevin L Martin