Global Patent Index - EP 2133568 A1

EP 2133568 A1 20091216 - Multi-stage piston compressor

Title (en)

Multi-stage piston compressor

Title (de)

Mehrstufiger Kolbenkompressor

Title (fr)

Compresseur à piston à plusieurs étages

Publication

EP 2133568 A1 20091216 (DE)

Application

EP 08010771 A 20080613

Priority

EP 08010771 A 20080613

Abstract (en)

The compressor has dry-running piston-cylinder units (2, 4, 6) including separate linear drives (14, 16, 18) e.g. ball and screw spindles, for moving a piston. A control device (28) is designed such that the linear drives are controllable individually in speed and stroke. The control device changes a stage pressure ratio of the piston-cylinder units by the individual control of the linear drives. The piston-cylinder units are designed such that cylinders of the respective piston-cylinder units have differently large inner cross sections.

Abstract (de)

Die Erfindung betrifft einen mehrstufigen Kolbenkompressor mit zumindest zwei Kolben-Zylinder-Einheiten, welche jeweils einen separaten Linearantrieb zur Bewegung des Kolbens aufweisen, sowie einer Steuereinrichtung, welche derart ausgestaltet ist, dass die Linearantriebe individuell in Geschwindigkeit und Hub steuerbar sind.

IPC 8 full level

F04B 25/00 (2006.01); F04B 25/02 (2006.01)

CPC (source: EP US)

F04B 9/02 (2013.01 - EP US); F04B 25/00 (2013.01 - EP US); F04B 25/02 (2013.01 - EP US); F04B 35/01 (2013.01 - EP US)

Citation (applicant)

Citation (search report)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

Designated extension state (EPC)

AL BA MK RS

DOCDB simple family (publication)

EP 2133568 A1 20091216; EP 2133568 B1 20140430; ES 2478629 T3 20140722; PL 2133568 T3 20140930; US 2009311114 A1 20091217

DOCDB simple family (application)

EP 08010771 A 20080613; ES 08010771 T 20080613; PL 08010771 T 20080613; US 47727209 A 20090603