Patent · US Expired

Continuously variable friction gear transmission

US6689013B1 · kind B1 · utility

0Cited by

8References

3Claims

0Family size

Assignee

ZF FRIEDRICHSHAFEN AG · DE

Inventors

Jürgen Wafzig · Bermatingen, DE
Bernhard Sich · Friedrichshafen, DE

Key dates

Filing date	Jun 18, 2002
Grant date	Feb 10, 2004
Priority date	—
Expiry date	Jun 18, 2022

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16H2015/383
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

The continuously variable friction gear transmission has one housing and one variator which is inserted therein and which is mounted on a power frame. In order to provide this variator in the form of an operationally capable autarchic unit, the support pistons for the trunnions are integrated in the power frame.

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