EP 0064481 A1 19821110 - A reciprocating, hydraulically operated, positive displacement compressor.
Title (en)
A reciprocating, hydraulically operated, positive displacement compressor.
Title (de)
Hydraulisch betriebener Kompressor mit hin- und hergehender Verdrängerbewegung.
Title (fr)
Compresseur à commande hydraulique avec un déplacement en va-et-vient.
Publication
Application
Priority
IT 341981 A 19810430
Abstract (en)
The compressor has three coaxial heads, 1, 2 and 3, in between which and coaxial therewith are stably interposed two liners, 4 and 5. Inside each of the said liners slides impermeably a piston, 10 and 11, the two pistons being connected one to the other through a rod 9 that slides guided by the central head 2. The two chambers 12 and 13 through which the rod passes, terminate at oil hydraulic control means destined for the operation of the assembly constituted by the rod 9 and the pistons 10 and 11. The remaining two chambers 17 and 16, each define a compression stage. With the compressor in question there is practically no buckling stress on the rod 9 and, furthermore, the number of heads, 1, 2 and 3, liners, 4 and 5, and pistons, 10 and 11, is less than in similar known compressors that are operated hydraulically and are of the same capacity and compression ratio.
IPC 1-7
IPC 8 full level
F04B 9/115 (2006.01); F04B 25/00 (2006.01)
CPC (source: EP)
F04B 9/115 (2013.01); F04B 25/005 (2013.01)
Citation (search report)
- [Y] DE 2161459 A1 19730614 - SLIFER MANUFACTURING CO
- [Y] GB 165253 A 19210630 - JOHN S BARNER
- [A] US 2411020 A 19461112 - BLASUTTA VICTOR V
- [A] US 3162133 A 19641222 - SMITH JAMES E
- [A] FR 796685 A 19360411
Designated contracting state (EPC)
BE DE FR GB NL
DOCDB simple family (publication)
EP 0064481 A1 19821110; AR 226971 A1 19820831; AU 8290782 A 19821104; BR 8202149 A 19830322; IT 1145505 B 19861105; IT 8103419 A0 19810430
DOCDB simple family (application)
EP 82830099 A 19820420; AR 28922782 A 19820427; AU 8290782 A 19820421; BR 8202149 A 19820414; IT 341981 A 19810430