Global Patent Index - EP 0770837 B1

EP 0770837 B1 20010718 - Hydraulic system for recovering refrigerants

Title (en)

Hydraulic system for recovering refrigerants

Title (de)

Hydrauliksystem zur Rückgewinnung von Kältemittel

Title (fr)

Système hydraulique pour la récupération des réfrigérants

Publication

EP 0770837 B1 20010718 (EN)

Application

EP 95630110 A 19951023

Priority

EP 95630110 A 19951023

Abstract (en)

[origin: EP0770837A1] A hydraulic refrigerant recovery system and method moves refrigerant liquid or refrigerant vapor. Substantial pressure is developed by the hydraulic unit for moving a substantially larger piston (18) to increase the pumping rate for refrigerant. Only the size of the inlet line (10) for the hydraulic unit limits the pumping capacity, unlike the capability experienced previously with pneumatic motion for refrigerant liquids. The invention system includes a hydraulic pump (14), oil reservoir (16), a hydraulic cylinder (20), a spool valve (22) and a limit switch assembly (24). <IMAGE>

IPC 1-7

F25B 45/00

IPC 8 full level

F25B 45/00 (2006.01)

CPC (source: EP)

F25B 45/00 (2013.01); F25B 2345/002 (2013.01); F25B 2345/006 (2013.01)

Designated contracting state (EPC)

BE CH DE DK ES FR GB IT LI NL SE

DOCDB simple family (publication)

EP 0770837 A1 19970502; EP 0770837 B1 20010718; DE 69521807 D1 20010823

DOCDB simple family (application)

EP 95630110 A 19951023; DE 69521807 T 19951023