Valve train of an internal combustion engine

US6513472B2 · kind B2 · utility

Assignee

• Ina Schaeffler KG · DE

Inventors

• Walter Speil · Ingolstadt, DE
• Oliver Schnell · Weisendorf, DE

Key dates

• Filing date: Feb 28, 2002
• Grant date: Feb 4, 2003
• Expiry date: Feb 28, 2022

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F01L2305/00
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

In a valve train (1) of an internal combustion engine (10), a tappet push rod (2) comprises on its first end (3), a tappet (5) and an uncoupling device (8) made as a single component, and on its second end (4), a hydraulic lash adjuster (15) that acts on a rocker arm. Due to this spatial separation of the lash adjuster (15) from the single component (5, 8), a component (5, 8) is obtained that has a reduced mass and a smaller diameter as well as a relatively simple structure. In addition, the lash adjuster (15) can now be supplied with hydraulic medium directly out of the rocker arm.