Reciprocating piston internal combustion engine including a sensor system on a gas exchange valve

US10240570B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Andreas Bethmann · Ditzingen, DE
• Andre Yashan · Saarburg, DE
• Markus Stalitza · Schwäbisch Gmünd, DE
• Armin Hassdenteufel · Unterriexingen, DE
• Herbert Kolly · Sachsenheim, DE
• Jochen Hofstaetter · Sinsheim, DE

Key dates

• Filing date: Dec 14, 2015
• Grant date: Mar 26, 2019
• Expiry date: May 23, 2036

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F01L2820/045
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A reciprocating piston internal combustion engine includes: a sensor system on a gas exchange valve which has a valve head situated at a first end of a valve stem; a lever element which engages at a second end of the valve stem and which is designed to actuate the gas exchange valve by displacing the valve head; a detection element which, upon actuation of the gas exchange valve, is displaced along a displacement path; and a sensor device configured to ascertain a position of the detection element. The sensor device is situated in such a way that the detection element, during a displacement along a portion of the displacement path, moves predominantly in a movement toward the sensor device or away from the same, thereby providing a measurement of valve timing of the gas exchange valve.