Methods of use for a positive displacement pump having an externally assisted valve
Номер патента: EP2516856A2
Опубликовано: 31-10-2012
Автор(ы): Aparna Raman, Edward Leugemors, Jean-Louis Pessin, Philippe Gambier, Rajesh Luharuka, Toshimichi Wago
Принадлежит: Gemalto Terminals Ltd, Prad Research and Development Ltd, Schlumberger Holdings Ltd, Schlumberger Technology Bv, Services Petroliers Schlumberger SA
Опубликовано: 31-10-2012
Автор(ы): Aparna Raman, Edward Leugemors, Jean-Louis Pessin, Philippe Gambier, Rajesh Luharuka, Toshimichi Wago
Принадлежит: Gemalto Terminals Ltd, Prad Research and Development Ltd, Schlumberger Holdings Ltd, Schlumberger Technology Bv, Services Petroliers Schlumberger SA
Реферат: A method for operating at least one pump in a pump assembly comprises providing a pump assembly comprising a fluid end and a power end, the fluid end in communication with a fluid source and at least one downstream destination and comprising a pump housing for a pressurizable chamber, at least one valve for controlling fluid communication with the chamber, the at least one valve defining a normal duration of allowing fluid communication with the chamber during operation of the pump assembly, providing a valve actuation guide external to the chamber, the valve actuation guide coupled to the valve and operable to assist in controlling fluid communication with the chamber, operating the pump assembly, and actuating the valve actuation guide to change an aspect of the valve duration.
Control for a load-dependently operating variable displacement pump
Номер патента: GB2231691A. Автор: Wolfgang Kauss. Владелец: Mannesmann Rexroth AG. Дата публикации: 1990-11-21.