Patent · US Active

Switchable valve train rocker shaft

US9945269B2 · kind B2 · utility

0Cited by

4References

17Claims

0Family size

Assignee

Schaeffler Technologies AG & Co. KG · DE

Inventors

Faheem Ahmed · Troy, US
Colin Foster · Belle River, CA
David Chandler · Windsor, CA
John Whitton · Milwaukee, US
Debora Manther · Royal Oak, US
Pradeep Mohan Mohan Das · Troy, US
Sumukha Nagaraj · Dearborn, US

Key dates

Filing date	Jun 7, 2016
Grant date	Apr 17, 2018
Priority date	—
Expiry date	Oct 15, 2036

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF01L2810/02
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A switchable valve train assembly including a rocker shaft is provided. The rocker shaft includes a first chamber extending between a first axial end and a second axial end of the rocker shaft and a second chamber extending between the first axial end and the second axial end of the rocker shaft. A seepage orifice is defined between the first chamber and the second chamber and provides a fluid connection between the first chamber and the second chamber. The first chamber includes a first actuator port in fluid connection with a first intake port for a hydraulic lash adjuster. The second chamber includes a second actuator port in fluid connection with a second intake port for a locking assembly.

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