EP 0332586 A1 19890913 - A head of light material for internal combustion engines, with sintered steel inserts, and a method for its manufacture.
Title (en)
A head of light material for internal combustion engines, with sintered steel inserts, and a method for its manufacture.
Title (de)
Leichtmetallzylinderkopf für eine Brennkraftmaschine mit Sinterstahl-Einsatzteilen und Prozess zu ihrer Herstellung.
Title (fr)
Culasse à matériel léger pour un moteur à combustion interne avec pièce intercalée en acier fritté et méthode de fabrication.
Publication
Application
Priority
IT 6720588 A 19880311
Abstract (en)
The device comprises a body (1, 2) with first and second apertures (3, 4) which can communicate with each other through a chamber (8, 9) defined in the body and are intended for connection to a vacuum source and an accumulator or other vacuum-using device, respectively. The body also has a third aperture (19) through which the chamber (8, 9) communicates with the atmosphere. An on-off valve (11, 13) is formed in the chamber (8, 9) for interrupting the communication between the first and second apertures (3, 4). This valve (11, 13) comprises a seat (11) and a movable obturator (13) controlled by an operating piston (10) which is slidable in the chamber (8, 9) and sealingly separates the first and second apertures (3, 4) from the third aperture (19). The piston (10) is adapted to close the valve (11, 13) against the action of resilient biassing means (18) which tend to open the valve (11, 13) when the vacuum applied to the second aperture (4) of the body exceeds a predetermined value.
IPC 1-7
IPC 8 full level
F01L 3/02 (2006.01); F01L 3/22 (2006.01); F02F 1/38 (2006.01); F02B 3/06 (2006.01); F02F 1/24 (2006.01)
CPC (source: EP)
F01L 3/02 (2013.01); F01L 3/22 (2013.01); F02F 1/38 (2013.01); F02B 3/06 (2013.01); F02B 2275/16 (2013.01); F02F 2001/245 (2013.01); F02F 2001/247 (2013.01)
Citation (search report)
- [A] US 3176666 A 19650406 - WHITEHEAD HERBERT A
- [A] EP 0167034 A1 19860108 - SUMITOMO ELECTRIC INDUSTRIES [JP], et al
- [A] PATENT ABSTRACTS OF JAPAN, vol. 8, no. 16 (M-270)[1453], 24th January 1984, page 94 M 270; & JP-A-58 177 402 (MITSUBISHI JUKOGYO K.K.) 18-10-1983
Designated contracting state (EPC)
DE ES FR GB SE
DOCDB simple family (publication)
EP 0332586 A1 19890913; EP 0332586 B1 19920102; BR 8901044 A 19891024; DE 68900621 D1 19920213; ES 2027831 T3 19920616; IT 1219101 B 19900503; IT 8867205 A0 19880311
DOCDB simple family (application)
EP 89830081 A 19890228; BR 8901044 A 19890302; DE 68900621 T 19890228; ES 89830081 T 19890228; IT 6720588 A 19880311