EP 1264979 A3 20030730 - Piston unit for combustion engine
Title (en)
Piston unit for combustion engine
Title (de)
Kolben für ein Brennkraftmachine
Title (fr)
Piston pour un moteur à combustion interne
Publication
Application
Priority
FI 20011165 A 20010604
Abstract (en)
[origin: EP1264979A2] Piston assembly (1) for an internal combustion engine comprising an upper section (2) abutting onto the combustion chamber of the cylinder, a piston skirt (3) in connection with the upper section, and a sealing arrangement for sealing the joint between the upper section and the skirt. In the piston assembly the sealing arrangement (1.2, 1.3) between the upper section and the skirt is provided by utilizing the difference between the mounting and working temperatures of the upper section (2) and the piston skirt (3). Preferably, the sealing arrangement between the upper section and the skirt is arranged to operate under working pressure and the sealing arrangement comprises several operationally in succession provided counter surfaces, which are arranged with respect to each other so that their mutual distance is reduced at the working temperature of the surfaces, and that a pressure balancing chamber is formed between two successive, tightly arranged counter surface pairs (2a - 3b). <IMAGE>
IPC 1-7
IPC 8 full level
F02F 3/00 (2006.01)
CPC (source: EP)
F02F 3/0015 (2013.01); F05C 2251/042 (2013.01)
Citation (search report)
- [A] US 4419925 A 19831213 - TSUZUKI YOSHIHIKO [JP], et al
- [A] US 4887518 A 19891219 - HAYAKAWA ISSE [JP]
- [A] US 5499572 A 19960319 - COBBLE DANIEL L [US]
- [DA] US 4253430 A 19810303 - GARTER ROBERT F, et al
- [DA] DE 3110292 A1 19820930 - WIESER DR RUDOLF
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 1264979 A2 20021211; EP 1264979 A3 20030730; EP 1264979 B1 20070228; AT E355450 T1 20060315; DE 60218382 D1 20070412; DE 60218382 T2 20071122; FI 113683 B 20040531; FI 20011165 A0 20010604; FI 20011165 A 20021205
DOCDB simple family (application)
EP 02253880 A 20020531; AT 02253880 T 20020531; DE 60218382 T 20020531; FI 20011165 A 20010604