Patent · US Active

Injector

US10113523B2 · kind B2 · utility

1Cited by

2References

20Claims

0Family size

Assignee

CONTINENTAL AUTOMOTIVE GMBH · DE

Inventors

Roman Etlender · Regensburg, DE
Werner Reim · Waldbronn, DE
Willibald Schuerz · Pielenhofen, DE

Key dates

Filing date	May 22, 2014
Grant date	Oct 30, 2018
Priority date	—
Expiry date	Jul 20, 2034

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02M2200/90
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

An injector includes an actuator arranged in an actuator space, a piston guide having a bore hole, and a piston arranged in the bore hole. The piston has a first end face facing the actuator and delimiting a first space in and/or on the bore hole, and a second end face lying opposite the first space and delimiting an adjoining second space in and/or on the bore hole. The piston is arranged between the first and second spaces, and a gap extends around the circumference of the piston between the piston and the bore hole. The piston includes a first material and the piston guide includes a second material, the first and second materials having different thermal expansion properties such that when the piston guide and/or piston are heated, the gap width of the gap decreases to limit fuel leakage between the first space and second spaces.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.