EP 0698727 A1 19960228 - Method of manufacturing a tappet for an internal combustion engine
Title (en)
Method of manufacturing a tappet for an internal combustion engine
Title (de)
Herstellungsverfahren für einen Stössel einer Brennkraftmaschine
Title (fr)
Méthode de fabrication d'un poussoir pour moteur à combustion interne
Publication
Application
Priority
JP 19954794 A 19940824
Abstract (en)
In a method of manufacturing a tappet for an internal combustion engine, powdered metal "P" filled in a cavity 22 of a die 21 is compressed by lower and upper punches 23 and 25 to form a body and a top wall of the tappet, and is sintered. During compression molding, frictional resistance of powdered material increases density of the upper and lower ends of the tappet, thereby improving strength and wear resistance. <MATH>
IPC 1-7
IPC 8 full level
B22F 3/02 (2006.01); B22F 3/11 (2006.01); B22F 3/17 (2006.01); B22F 5/00 (2006.01); F01L 1/14 (2006.01)
CPC (source: EP)
B22F 3/1109 (2013.01); B22F 5/00 (2013.01); F01L 1/143 (2013.01); F01L 2301/00 (2020.05); F01L 2303/00 (2020.05)
Citation (search report)
- [Y] EP 0015520 A1 19800917 - SMITH DAVID T [US], et al
- [A] EP 0399400 A1 19901128 - FIAT AUTO SPA [IT]
- [A] US 3802849 A 19740409 - KIMURA T, et al
- [Y] PATENT ABSTRACTS OF JAPAN vol. 7, no. 211 (M - 243)<1356> 17 September 1983 (1983-09-17)
- [A] PATENT ABSTRACTS OF JAPAN vol. 14, no. 164 (M - 957) 30 March 1990 (1990-03-30)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0698727 A1 19960228; EP 0698727 B1 19980506; DE 69502363 D1 19980610; DE 69502363 T2 19990107; JP H0860205 A 19960305
DOCDB simple family (application)
EP 95810122 A 19950224; DE 69502363 T 19950224; JP 19954794 A 19940824