Robert Boschgmbh

Sebastian Wieschollek

Guenter Dantes

Ralf Kromer

John Seifert

Manoj Menon

Juergen Lander

Todd Wallace Helsel

Thomas Stach

James Doetsch

Sudhir Srinivasan

Ryan Cary

Fabian Lischke

Peter Glibota

Mohan Yelanadu Siddaiah

Roberto Ivan Del Angel Esparza Valerio

A fuel injector retention arrangement for connecting a fuel injector with a fuel rail comprises a fuel injector receiving cup having a fuel rail end in connection with a fuel rail and a fuel injector insertion end into which a fuel injector is insertable and connecting pins, the connecting pins being insertable into the receiving cup in such a manner, that a longitudinal axis of the connecting pins is situated in a first plane, which is oriented perpendicularly to a longitudinal axis of the receiving cup. The connecting pins are arranged in apertures of the receiving cup. A longitudinal axis of the apertures and the longitudinal axis of the connecting pins are aligned with each other. The apertures have an insertion end into which the connecting pins are insertable and a shoulder forming an axial stop for the connecting pins at a second end of the apertures. The apertures have a service opening which is arranged between the shoulder of the apertures and an outside surface of the receiving cup. The service openings are defined by a first side surface radially extending away from the second end of the first aperture and the longitudinal axis of the apertures, a second side surface extending along the longitudinal axis of the first aperture and away from the first aperture, and a third side surface and a fourth side surface. The first side surface and second side surface extend between the third side surface and fourth side surface.

Fuel injector retention arrangement

This disclosure is directed to a fuel injector dust seal comprising: a sleeve arranged between a fuel injector and a fuel injector receiving aperture of a cylinder head, the sleeve defining a longitudinal axis with a first axial end and a second axial end; the sleeve further comprising: a first section, the first segment defining a first inner perimeter configured to be in contact with a first outer perimeter of a fuel injector and a first outer perimeter that is smaller than an inner perimeter of a first section of a fuel injector receiving aperture; and a second section, the second section defining a second inner perimeter that is bigger than an outer perimeter of a second outer perimeter of a fuel injector and a second outer perimeter configured to be in contact with an inner perimeter of a second segment of a fuel injector receiving aperture.

Fuel injector dust seal

A fuel injector assembly includes a valve housing, a valve stem that is disposed in the valve housing, a magnetic coil that surrounds the valve housing and is used to displace the valve stem within the valve housing, and a terminal blade. The terminal blade includes a bus bar that provides an electrical connection between the magnetic coil and an external connector. In addition, the terminal blade includes a clip that is connected to the bus bar at a clip first end and to the valve housing at a clip second end. The clip includes a sacrificial portion that is configured to part, for example by dissolving, when the terminal blade undergoes an overmolding process. As a result of the overmolding process, the clip is separated into multiple, spaced portions.

Fuel injector including terminal blade

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

Growing community of inventors

Ann Arbor, MI, United States of America

Sebastian Wieschollek