EP 1987257 B1 20090722 - PNEUMATIC DRIVE SYSTEM
Title (en)
PNEUMATIC DRIVE SYSTEM
Title (de)
PNEUMATISCHES ANTRIEBSSYSTEM
Title (fr)
SYSTEME D'ENTRAINEMENT PNEUMATIQUE
Publication
Application
Priority
- EP 2007000398 W 20070118
- DE 202006002727 U 20060221
Abstract (en)
[origin: US2009078110A1] It is a question of a pneumatic drive system comprising at least one pneumatic drive (2) possessing a drive housing (4) and an output drive unit (6) able to be shifted in relation to it by the action of compressed air, the output drive unit (6) including an output drive piston (8), which in the drive housing (4) separates two working chambers (12 and 13) from one another, one or both of such chambers being connected with a pneumatic control line (17 and 18), such line having control valve means (22 and 23) able to be switched over between an air economy position and an open position (24) making available a flow cross section which is larger than that of the air economy position, such control valve means being provided with actuating means (32) able to be activated in a manner dependent on the position of the output drive unit (6), such actuating means being able to cause a switching over of the control valve means (22 and 23) into the air economy position, when the output drive unit (6), owing to the compressed air flowing through the control valve means (22 and 23) into the pneumatic drive (2), has reached an end of stroke position or a position just short thereof. The air economy setting has the particular feature that it is in the form of a choking setting (25) opening up a flow cross section which is smaller than in the open position (24).
IPC 8 full level
F15B 15/22 (2006.01); F15B 21/14 (2006.01)
CPC (source: EP US)
F15B 11/064 (2013.01 - EP US); F15B 15/202 (2013.01 - EP US); F15B 15/225 (2013.01 - EP US); F15B 2211/30525 (2013.01 - EP US); F15B 2211/327 (2013.01 - EP US); F15B 2211/40515 (2013.01 - EP US); F15B 2211/41581 (2013.01 - EP US); F15B 2211/424 (2013.01 - EP US); F15B 2211/46 (2013.01 - EP US); F15B 2211/7053 (2013.01 - EP US); F15B 2211/88 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
US 2009078110 A1 20090326; AT E437309 T1 20090815; AU 2007218273 A1 20070830; CA 2611208 A1 20070830; CA 2611208 C 20140225; DE 202006002727 U1 20060420; DE 502007001127 D1 20090903; EP 1987257 A1 20081105; EP 1987257 B1 20090722; WO 2007096031 A1 20070830
DOCDB simple family (application)
US 91881707 A 20070118; AT 07702849 T 20070118; AU 2007218273 A 20070118; CA 2611208 A 20070118; DE 202006002727 U 20060221; DE 502007001127 T 20070118; EP 07702849 A 20070118; EP 2007000398 W 20070118