Robert Boschgmbh

Todd Wallace Helsel

Robert Royall Edens

Guenter Dantes

Juergen Lander

Paul William Schwark

Sebastian Wieschollek

Justin Michael Kern

Mohamed El-Gammal

Manoj Menon

John Seifert

Thomas Stach

James Doetsch

Sudhir Srinivasan

Ryan Cary

Fabian Lischke

Peter Glibota

A fuel injector () including a fuel injector housing (), a valve seat () formed at one end of the fuel injector housing, and a valve body () disposed in the fuel injector housing and operable to open and close a spray hole () in the valve seat. The valve seat includes a base portion () and insert portion () having spray holes () that is secured to the base portion ().

Fuel injector valve seat assembly including insert locating and retention features

A mixing device for introducing gaseous fuel into an intake airflow of an engine, the mixing device including an inlet, an outlet, an intake passage extending between the inlet and the outlet, an annular channel, and a plurality of fuel supply manifolds, each coupled to a main gaseous fuel inlet of the mixing device, and a separate plurality of gaseous fuel injectors coupled to each one of the plurality of fuel supply manifolds to receive gaseous fuel from the corresponding fuel supply manifold. The annular channel is configured to receive gaseous fuel injected from all of the separate pluralities of gaseous fuel injectors. The mixing device includes a diffuser, the diffuser arranged to receive gaseous fuel from the annular channel and operable to diffuse gaseous fuel from the annular channel into the intake airflow.

Gaseous fuel mixer

A mixing device for introducing gaseous fuel and recirculated exhaust gas into an intake passage of an engine, the mixing device including a body, an annular channel, the body defining a fuel inlet opening, and a plurality of gaseous fuel injectors fluidly coupled to the fuel inlet opening such that gaseous fuel from the plurality of gaseous fuel injectors is conveyed into the annular channel through the fuel inlet opening. The mixing device further includes a diffuser at a position of the annular channel to diffuse gaseous fuel from the annular channel into the intake airflow in the intake passage, an exhaust gas recirculation (EGR) inlet opening defined by the body and in fluid communication with the intake passage, and an exhaust gas recirculation supply pipe coupled to the EGR inlet opening and configured to direct recirculated exhaust gas from the engine into the intake passage.

Gaseous fuel mixer with exhaust gas recirculation

A method for equipping an engine with a mixing device for introducing gaseous fuel into an intake passage of the engine comprising the steps of providing a body through which the intake passage extends, wherein an annular channel encircles the intake passage, providing a fuel inlet manifold with injector receiving ports, each injector receiving port configured to receive a discharge end of a fuel injector, with each injector receiving port in fluid communication with the annular channel, and providing a fuel supply manifold including fuel injector ports, wherein each fuel injector port is configured to receive an upstream end of a fuel injector. The method further includes blocking at least one injector receiving port such that fluid communication through the injector receiving port is prevented, removably coupling fuel injectors between the fuel supply manifold and the unblocked injector receiving ports, and providing the mixing device to the engine.

Gaseous fuel mixer and method

Growing community of inventors

Saint Stephen, SC, United States of America

Todd Wallace Helsel