EP 1738077 A1 20070103 - FLUID-WORKING MACHINE WITH DISPLACEMENT CONTROL
Title (en)
FLUID-WORKING MACHINE WITH DISPLACEMENT CONTROL
Title (de)
FLUIDARBEITSMASCHINE MIT VERDRÄNGUNGSSTEUERUNG
Title (fr)
MACHINE A FLUIDE DE TRAVAIL POURVUE D'UN DISPOSITIF DE COMMANDE DE DEPLACEMENT
Publication
Application
Priority
- GB 2005001235 W 20050331
- GB 0407297 A 20040331
Abstract (en)
[origin: WO2005095800A1] A fluid-working machine has working chambers (4), each of which is connected to a fluid commutating means (2) which alternately connects the working chamber to either of two fluid manifolds (A, B). An electronically controlled valve (1) is inserted into the flow path between each chamber (4) and the commutating means. This valve is commanded by a controller (6) receiving an input signal of the phase angle of the shaft (5) of the machine or at least one electronic pulse per revolution which informs the controller that the shaft is passing a known phase angle. The valve (1) allows overriding of fixed mechanical commutation by closing the valve cyclically, synchronised with the angular position of the shaft (5). Thus the controller (6) is able to vary the time-averaged fluid flow into or out of the machine by varying the proportion of chambers (4) which are isolated from or connected to the mechanical commutating means (2), to control the torque, speed, and/or fluid flow into and out of the machine.
IPC 8 full level
F04B 49/06 (2006.01)
CPC (source: EP US)
F04B 49/065 (2013.01 - EP US)
Citation (search report)
See references of WO 2005095800A1
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 MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2005095800 A1 20051013; AT E467049 T1 20100515; CN 100587269 C 20100203; CN 1973133 A 20070530; DE 602005021087 D1 20100617; EP 1738077 A1 20070103; EP 1738077 B1 20100505; GB 0407297 D0 20040505; JP 2007530865 A 20071101; US 2007258832 A1 20071108
DOCDB simple family (application)
GB 2005001235 W 20050331; AT 05729670 T 20050331; CN 200580014182 A 20050331; DE 602005021087 T 20050331; EP 05729670 A 20050331; GB 0407297 A 20040331; JP 2007505631 A 20050331; US 59947505 A 20050331