A self-contained electro-hydraulic bidirectional rotary actuator unit

(19)

(11)

EP 2 770 218 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	26.04.2017 Bulletin 2017/17

(43)	Date of publication A2:
	27.08.2014 Bulletin 2014/35

(21)	Application number: 14156685.1

(22)	Date of filing: 26.02.2014

(51)

International Patent Classification (IPC):

F15B 15/18^(2006.01)

F15B 1/02^(2006.01)

(84)	Designated Contracting States:
	AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
	Designated Extension States:
	BA ME

(30)

Priority:

26.02.2013 US 201361769363 P

(71)	Applicant: Actuant Corporation
	Menomonee Falls WI 53051 (US)

(72)	Inventor:
	Schuurman, Eddy 7443 TC Nijverdal (NL)

(74)	Representative: EP&C
	P.O. Box 3241 2280 GE Rijswijk 2280 GE Rijswijk (NL)

(54)	A self-contained electro-hydraulic bidirectional rotary actuator unit

(57) A self-contained electro-hydraulic bidirectional rotary actuator unit (1) adapted for limited arc actuation of an object, e.g. adapted for quarter turn actuation of a valve, e.g. a pipeline valve. The unit comprises a hydraulic rotary actuator with a rack and a pinion meshing with a rack and supported on a rotary shaft (9) in the cylinder housing (2). The unit further comprises a bidirectional hydraulic pump (15) and an electric motor (20) connected to the pump housing and driving the pump.

Search report

Search report