Patent · US Active

Valve drive for an internal combustion engine

US10428702B2 · kind B2 · utility

0Cited by

2References

20Claims

0Family size

Assignee

Mahle International GmbH · DE

Inventors

Patrick Altherr · Stuttgart, DE
Markus Walch · Bretten, DE
Thorsten Ihne · Stuttgart, DE

Key dates

Filing date	Mar 26, 2018
Grant date	Oct 1, 2019
Priority date	—
Expiry date	Mar 26, 2038

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF01L2305/00
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A valve drive for an internal combustion engine may include a camshaft, at least one cam follower, at least one adjusting device, and at least one control shaft. The camshaft may include at least one cam group including a first cam and a second cam. The at least one adjusting device may include a first engagement element and a second engagement element. The at least one control shaft may include at least one control cam group including a first control cam and a second control cam. The at least one control shaft may rotate such that at least one stop region of the first control cam adjusts the first engagement element from the basic position into the switching position and at least one stop region of the second control cam adjusts the second engagement element from the basic position into the switching position one after the other.

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