Patent · US Expired

Oil supply for a valve actuation device

US5503121A · kind A · utility

10Cited by

5References

6Claims

0Family size

Assignee

INA-WALZLAGER SCHAEFFLER KG · DE

Inventors

Walter Speil · Ingolstadt, DE
Arndt Ihlemann · Herzogenaurach, DE
Johann Kecker · Herzogenaurach, DE

Key dates

Filing date	Mar 17, 1995
Grant date	Apr 2, 1996
Priority date	—
Expiry date	Mar 17, 2015

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02F2001/247
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A device for the simultaneous actuation of two gas exchange valves (10) of an internal combustion engine by a camshaft (11) rotatably supported in a camshaft bearing (15,16), said device comprising a bridge (3) which, with the interposition of hydraulic valve clearance compensation elements (7), is in contact with valve shaft ends (9) of the gas exchange valves (10), and a guide rail (2) on which the bridge (3) is guided for longitudinal displacement by a linear bearing (5), said guide rail (2) comprising a first oil duct (18) which opens into the linear bearing (5) and a second oil duct (22) implemented in the bridge (3), which connects the valve clearance compensation elements (7) to the linear bearing (5), and the oil passes phase-wise from the first oil duct (18) into the second oil duct (22), characterized in that a third oil duct (21) branches from the first oil duct (18) and opens into the camshaft bearing (15,16).

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