Caterpillar Inc.

Sridhar Thangaswamy

Alan Ray Stockner

Aaron Michael Brown

Dana Ray Coldren

Dennis Henderson Gibson

Cory Andrew Brown

Victor Iskander Yacoub

Scott F Shafer

Hoisan Kim

Robert Michael Campion

Lifeng Wang

Glenn Brian Cox

Michael James Pollard

Satya Naga Deepak Pillarisetti

Zhenyu Li

George Kodikulam Joseph

Eric Jon Blankenship

John Jay Truhan, Jr

Iulian Gabriel Ghiorghias

Ankababu Kandlagunta

Robert Joseph Smith

John P McDonnel

A fuel injector includes an injector body, and a stack within the injector body, and having a nozzle supply passage therein. The stack includes a solenoid assembly having a solenoid housing piece with a fuel bore formed therein that includes a segment of the nozzle supply passage. The solenoid housing piece includes a solenoid housing material in a base state, and a solenoid housing material in a residual compressive stressed state, with the fuel bore being formed by the solenoid housing material in the residual compressive stressed state. Residual stresses may be imparted by ballizing, nitriding, carburizing, autofrettage, or still another technique.

Fuel injector having residually stressed solenoid housing for improved pressure capapility

A cryogenic fluid pump includes an outlet tube extending along the pump centerline, the outlet tube having an outlet passage that is fluidly in communication with the combined outlet and with a pump outlet opening, and a shroud that extends concentrically along the outlet tube and has an inner diameter that is larger than an outer diameter of the outlet tube such that a gap is formed in a radial direction between an inner surface of the shroud and an outer surface of the outlet tube, the gap extending along at least a portion of the outlet tube.

Cryogenic fluid pump

A fuel system is disclosed for use with an engine, including a fuel injector assembly fluidly coupled with a low-pressure fuel conduit, an accumulator, and a cap within an opening in the accumulator. The fuel injector assembly may be structured to draw in low-pressure fuel, pressurize the fuel, and store the pressurized fuel in the accumulator for injection to a combustion chamber. The cap has a pressure sensor and a pressure relief valve therein, and drains fuel leaked past fluid seals between the cap and each of the pressure sensor, the pressure relief valve, and the accumulator by way of a common drain line.

Stand-alone common rail capable injector system

A pushrod assemblymay include a seal carrierfor a spaced seal assemblyand/or a seal carrierfor a stacked seal assembly, the spaced seal assembly including first and second annular sealsseparated by a spacerto isolate between the seals a vented regionof the pushrod housing, the stacked seal assembly including at least two annular sealsstacked on the seal carrier. Each seal assembly can be removed and replaced via an access endof the seal carrier after detaching the access end from an adjacent component of the assembly. The seal carriers may be incorporated into a cryogenic pumpwherein at least one annular seal is arranged on each seal carrier to seal the pushrod assemblywithin its housing

Reciprocating pushrod assembly and cryogenic pump

A pumping mechanism is disclosed. The pumping mechanism may include a barrel formed of a barrel substrate and including a first end surface, a second end surface opposite the first end surface, and a bore between the first and second end surfaces. Each of the first and second end surfaces and the bore is coated with a metal plating. The pumping mechanism may further include a plunger formed of a plunger substrate and configured to be slidably disposed in the bore in barrel, the plunger substrate having a tribological coating.

Pump with wear-resistant barrel and plunger having coating support

A regeneration system includes a housing defining an exhaust flow path. An inlet of the housing is configured to receive an exhaust flow from the internal combustion engine and an outlet of the housing is configured to direct the exhaust flow toward an exhaust aftertreatment component. A combustion head is coupled with the housing and configured to direct air and fuel to a combustion chamber in fluid communication with the exhaust flow path. A fuel supply passage is defined by the combustion head and is in fluid communication with the combustion chamber. The regeneration system also includes a valve and filter assembly disposed within the fuel supply passage. The valve and filter assembly includes an assembly housing defining a reduced fuel supply passage, a filter material coupled with the assembly housing, and a check valve at least partially disposed within the reduced fuel supply passage.

Valve and filter assembly for a regeneration system

Growing community of inventors

Dunlap, IL, United States of America

Sridhar Thangaswamy