EP 2944818 B1 20181226 - PLUNGER PUMP POWER CONTROL DEVICE AND CONTROL METHOD THEREOF
Title (en)
PLUNGER PUMP POWER CONTROL DEVICE AND CONTROL METHOD THEREOF
Title (de)
LEISTUNGSREGELUNGSVORRICHTUNG FÜR EINE KOLBENPUMPE UND STEUERUNGSVERFAHREN DAFÜR
Title (fr)
DISPOSITIF DE COMMANDE DE PUISSANCE DE POMPE À PISTON ET SON PROCÉDÉ DE COMMANDE
Publication
Application
Priority
- CN 201310590024 A 20131120
- CN 201320740091 U 20131120
- CN 2013001488 W 20131202
Abstract (en)
[origin: EP2944818A1] A plunger pump power control device and a control method thereof. The device comprises a valve body, a valve core, a valve sleeve, a stop plug, a spring pre-loaded mechanism, a feedback mechanism and a slide valve.The slide valve is provided within one end of the valve core. The stop plug is provided at one end of the valve body, and the spring pre-loaded mechanism is provided at the other end of. The valve sleeve, the valve core. and the slide valve are provided between the stop plug and the spring pre-loaded mechanism, and the feedback mechanism is hinged on the valve body. The device enables the hydraulic plunger pump to control the output power, the pump power output is simulated by two broken lines, and the error is less. It is flexible to load variable by the valve core through the pressure of the C-cavity.
IPC 8 full level
F04B 49/08 (2006.01); F04B 49/22 (2006.01)
CPC (source: EP US)
F04B 49/22 (2013.01 - EP US); F04B 49/08 (2013.01 - EP US); F04B 2205/04 (2013.01 - EP US)
Designated contracting state (EPC)
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
DOCDB simple family (publication)
EP 2944818 A1 20151118; EP 2944818 A4 20161228; EP 2944818 B1 20181226; JP 2016513771 A 20160516; JP 6105759 B2 20170329; US 2015345491 A1 20151203; WO 2015074167 A1 20150528
DOCDB simple family (application)
EP 13897807 A 20131202; CN 2013001488 W 20131202; JP 2015561878 A 20131202; US 201514818333 A 20150805