EP 0077329 A1 19830427 - PRESSURE TRANSDUCER.
Title (en)
PRESSURE TRANSDUCER.
Title (de)
DRUCKUMFORMER.
Title (fr)
TRANSDUCTEUR DE PRESSION.
Publication
Application
Priority
US 8100552 W 19810427
Abstract (en)
[origin: WO8203916A1] A pressure transducer (12) having a housing (14, 16), a pressure port (24) through said housing (14), a cylindrical recess (22) in said housing (14, 16) and communicating with said pressure port (24). A pair of nested bellows (50, 64) is acted upon by the pressure at said pressure port (24) such that the displacement of one of said bellows (64) is amplified by the displacement of the other of said bellows (50). Means is included for temperature effects and non-linearity. The present invention provides a simple durable pressure transducer (12) having an output of increased accuracy. The present invention is especially well suited for pressure measurements related to internal combustion engines.
Abstract (fr)
Transducteur de pression (12) possedant un boitier (14, 16), un orifice de pression (24) au travers de er (14), un recoin cylindrique (22) dans ce boitier (14, 16) et en communication avec l'orifice de pression (24). Une paire de soufflets emboites (50, 64) est actionnee par la pression a l'orifice de pression (24) de maniere que le deplacement d'un de ces soufflets (64) est amplifie par le deplacement de l'autre soufflet (50). Des moyens sont prevus pour equilibrer les effets dus a la temperature et a la non linearite. La presente invention permet d'obtenir un transducteur de pression (12) simple et durable possedant une sortie presentant une precision accrue. La presente invention convient specialement aux mesures de pressions relatives aux moteurs a combustion interne.
IPC 1-7
IPC 8 full level
CPC (source: EP)
G01L 7/061 (2013.01); G01L 9/0035 (2013.01); G01L 9/0089 (2013.01)
Designated contracting state (EPC)
AT CH DE FR GB LI NL SE
DOCDB simple family (publication)
WO 8203916 A1 19821111; BE 892771 A 19820802; EP 0077329 A1 19830427
DOCDB simple family (application)
US 8100552 W 19810427; BE 207763 A 19820406; EP 81901833 A 19810427