EP 0835986 B1 20010411 - Drive cam for a valve-controlled internal combustion engine
Title (en)
Drive cam for a valve-controlled internal combustion engine
Title (de)
Steuernocken für eine ventilgesteuerte Brennkraftmaschine
Title (fr)
Came d'entraînement pour un moteur à combustion interne commandé par soupapes
Publication
Application
Priority
DE 19641418 A 19961008
Abstract (en)
[origin: EP0835986A1] The control cam is for an exhaust valve in a valve-controlled internal combustion engine. The modified cam profile gives an initial rapid increase (3') in acceleration of motion (3) away from the valve seat as the valve begins to open. The acceleration reaches an initial peak (3''') of approximately 40-60% before falling away (3'') to a minimum (2) before building up again (4') to a maximum of 100%. The acceleration goes negative and the valve slows to a stop and begins to close. The acceleration goes positive again as the valve slows down and comes to rest gently on its seat.
IPC 1-7
IPC 8 full level
F01L 1/08 (2006.01)
CPC (source: EP US)
F01L 1/08 (2013.01 - EP US); Y10T 74/2101 (2015.01 - EP US)
Designated contracting state (EPC)
DE ES FR GB IT
DOCDB simple family (publication)
DE 19641418 A1 19980409; DE 59703347 D1 20010517; EP 0835986 A1 19980415; EP 0835986 B1 20010411; ES 2156324 T3 20010616; US 6631657 B1 20031014; WO 9815722 A1 19980416
DOCDB simple family (application)
DE 19641418 A 19961008; DE 59703347 T 19970912; EP 9705152 W 19970919; EP 97115864 A 19970912; ES 97115864 T 19970912; US 9102098 A 19981026