Global Patent Index - EP 0267656 A2

EP 0267656 A2 19880518 - Device for recording the cylinder capacity of hydraulic motors having radial variable cylinder-piston unit.

Title (en)

Device for recording the cylinder capacity of hydraulic motors having radial variable cylinder-piston unit.

Title (de)

Vorrichtung zur Registrierung der Zylinderkapazität einer hydraulischen Maschine, versehen mit variabler Zylinderkapazität.

Title (fr)

Dispositif pour enregistrer la capacité des cylindres d'un moteur hydraulique comprenant des propulseurs à capacité de cylindres variable.

Publication

EP 0267656 A2 19880518 (EN)

Application

EP 87202178 A 19871107

Priority

IT 2233986 A 19861114

Abstract (en)

The invention relates to a device for recording the cylinder capacity of hydraulic motors having variable-capacity radial propulsors and in which the propulsors (4) have at least one oscillating portion coupled to an eccentric component (3) of the drive shaft (2), the device comprising at least one proximity sensor (12) mounted in a fixed position on the outer casing (1) of the motor and facing an oscillating means comprising a propulsor (4) or portion thereof, the sensor being adapted to generate an electric signal of varying intensity depending on the distance between it and the oscillating means, and the maximum amplitude of variation of the signal at each revolution of the motor corresponding to the maximum amplitude of oscillation of the oscillating means, which is related to the eccentrity of the eccentric component and to the cylinder capacity determined thereby.

IPC 1-7

F01B 1/06; F01B 25/00; F01B 31/12; F03C 1/04; F04B 51/00

IPC 8 full level

F01B 1/06 (2006.01); F01B 25/00 (2006.01); F01B 31/12 (2006.01); F02B 77/08 (2006.01); F03C 1/04 (2006.01); F04B 51/00 (2006.01)

CPC (source: EP)

F01B 1/062 (2013.01); F01B 25/00 (2013.01); F01B 31/12 (2013.01); F02B 77/08 (2013.01)

Designated contracting state (EPC)

AT BE CH DE ES FR GB IT LI NL

DOCDB simple family (publication)

EP 0267656 A2 19880518; EP 0267656 A3 19890419; EP 0267656 B1 19910612; AT E64436 T1 19910615; DE 3770764 D1 19910718; ES 2022311 B3 19911201; IT 1197993 B 19881221; IT 8622339 A0 19861114

DOCDB simple family (application)

EP 87202178 A 19871107; AT 87202178 T 19871107; DE 3770764 T 19871107; ES 87202178 T 19871107; IT 2233986 A 19861114