EP 1170465 A3 20020130 - Camshaft for engine valve drive
Title (en)
Camshaft for engine valve drive
Title (de)
Nockenwelle zur Betätigung von Ventilen einer Brennkraftmaschine
Title (fr)
Arbre à cames pour commande de soupapes de moteur à combustion interne
Publication
Application
Priority
DE 10033291 A 20000707
Abstract (en)
[origin: EP1170465A2] Camshaft comprises an arrangement for hydraulically adjusting the relative position of rotation of the camshaft by influencing the control times of the valves. The arrangement includes a drive wheel (16) for the camshaft, a bucket wheel (17), and an impeller positioned with radial vanes in the cells of the bucket wheel. A locking device effective in the start phase of the internal combustion engine is provided between the bucket wheel and the impeller. The locking device comprises an axial spring-loaded hydraulic piston (37) positioned in one of the vanes of the impeller and a recess (40) for the piston. The piston protruding into the recess with a blocking section (39) and guided in a vane interacts with an operating element (44). The piston is loaded by a first pressure space and the operating element by a second pressure space. Preferred Features: The operating element is a bolt (47) which is guided on a stop (48) of the piston.
IPC 1-7
IPC 8 full level
F01L 1/34 (2006.01); F01L 1/344 (2006.01)
CPC (source: EP US)
F01L 1/3442 (2013.01 - EP US)
Citation (search report)
- [A] EP 0848140 A1 19980617 - AISIN SEIKI [JP]
- [A] PATENT ABSTRACTS OF JAPAN vol. 2000, no. 03 30 March 2000 (2000-03-30)
- [A] PATENT ABSTRACTS OF JAPAN vol. 2000, no. 02 29 February 2000 (2000-02-29)
- [A] PATENT ABSTRACTS OF JAPAN vol. 1999, no. 04 30 April 1999 (1999-04-30)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
EP 1170465 A2 20020109; EP 1170465 A3 20020130; EP 1170465 B1 20051214; DE 10033291 A1 20020117; DE 50108364 D1 20060119; JP 2002047905 A 20020215; US 2002029754 A1 20020314; US 6666179 B2 20031223
DOCDB simple family (application)
EP 01112335 A 20010519; DE 10033291 A 20000707; DE 50108364 T 20010519; JP 2001203504 A 20010704; US 90049201 A 20010709