Abstract:
A pump monitoring system for use in wellbore operations includes a strain gauge that can be positioned on a fluid end of a pump and at least one pressure transducer to measure relative pressure. A computing device can be connected to the strain gauge and the pressure transducers. The computing device executes programming instructions to identify failures of specific valves by correlating the strain signal to an actual pressure associated with the specific valve in the pump section. The processor then determines whether a pump pressure corresponds to the actual pressure associated with the specific valve, and if so, displays an indication that the specific valve in the pump section has failed.
Abstract:
Pump (1) comprising a first hollow cylindrical body (2) therein containing: a second hollow body (11) with a cylindrical outer profile and internally shaped in a cam-like manner, the second hollow body (11) being associated to drive means for the rotation thereof around a rotation axis (X); a plurality of pumping elements (10a, 10b, 10c) obtained inside a central fixed body (31). Each of the pumping elements (10a, 10b, 10c) has: a first cylinder (4) defining a chamber within which there is slidably coupled a piston (5) moving with reciprocating motion inside the first cylinder (4), the piston (5) having a housing for a plunger (6) coupled to the piston (5) and such to follow the reciprocating motions of the piston (5) within a second cylinder (7) which suctioningly receives the fluid coming from an external tank through a first duct (8), the plunger (6) causing the delivery outflow of the compressed fluid through the first duct (8) according to a direction opposite to the suctioning direction; a second duct (9) which places the first duct (8) of each pumping element (10a, 10b, 10c) in communication with an external point of delivery; a pressurisation check valve (13) present in the second duct (9). The pump has, connected to the second duct (9) upstream of the pressurisation valve (13), at least one valve for adjusting the fluid flow rate actuatable to at least partly discharge the fluid coming from the pumping elements (10a, 10b, 10c).
Abstract:
An integrated oil system manifold is provided, which includes a reverse rotation protection element, a main pump check valve, an auxiliary pump check valve, and a pressure relief valve, wherein the reverse rotation protection element, the main pump check valve, the auxiliary pump check valve, and the pressure relief valve are integrated with a housing of the integrated oil system manifold. Furthermore, a temperature control element, a filter, a heat exchanger, an integral main pump assembly, and an integral auxiliary pump assembly may also be included in the integrated manifold. An associated method is also provided.
Abstract:
Kompressor zur Erzeugung von Druckluft für ein Nutzfahrzeug, aufweisend ein Gehäuse mit einem Kolbenraum in einem Kurbelgehäuse und einem Schadraum, der wenigstens im Zylinderkopf ausgebildet ist. Der Kompressor weist ferner eine Ventileinrichtung mit einem Ventilelement auf, welches einen Betätigungsabschnitt und einen Absperrkörper zum Trennen des Schadraums von dem Kolbenraum aufweist, wobei der Absperrkörper zum Öffnen der Ventileinrichtung von einem Ventilsitz in Richtung des Kolbenraums abhebbar ist. Das Ventilelement ist einteilig mit dem Betätigungsabschnitt ausgebildet.
Abstract:
A relief valve assembly (500) includes a housing assembly (450) defining a chamber (410) therein. The relief valve assembly (500) includes a piston (200). The piston (200) may be at least partially disposed within the chamber (410). The relief valve assembly (500) includes a pilot inlet (318). The pilot inlet (318) may be configured to provide a pilot pressure proximate a second end (422) of the chamber (410). The relief valve assembly (500) includes an overpressure inlet (418) sealed from a first end (420) of the chamber (410) by the piston (200). The overpressure inlet (418) may be configured to provide an inlet pressure which may actuate the piston (200) when the inlet pressure exceeds the pilot pressure.
Abstract:
본 발명은 고점도 액 이송용 부스터펌프에 관한 것이다. 본 발명에 따른 고점도 액 이송용 부스터펌프는, 일측에 액츄에이터가 장착되고, 타측에는 토출밸브가 형성되며 내부에 챔버가 형성된 바디; 바디의 내부에 삽입되며 액츄에이터의 작동에 의해 전진 및 후진되어 압축력과 흡입력을 발생하는 플런저; 바디의 일측에 형성되며, 플런저의 전진 및 후진작동에 연동되어 개폐되면서 바디의 내측으로 유체를 공급 또는 차단하는 충진 밸브;를 포함하고, 바디의 챔버의 내주면에 나선상으로 충진액 이송로가 형성되고, 상기 충진액 이송로의 출구는 상기 토출밸브에 근접되어 형성된다.
Abstract:
Kompressoreinheit in einer tragbaren Druckluftquelle, welche einen durch einen Elektromotor angetriebenen Hubkolbenverdichter aufweist, wobei der Hubkolbenverdichter einen über ein Schubkurbelgetriebe in einem Zylinder oszillierend bewegten Kolben beinhaltet und der Zylinder ausgangsseitig durch einen Zylinderkopf mit Auslassventil verschlossen ist, wobei die Kompressoreinheit einen mit dem Druck im Kompressionsraum in Verbindung stehenden elektrischen Druckschalter aufweist und der Elektromotor über den Druckschalter ein- und ausschaltbar ist.
Abstract:
A variable-capacity compressor that includes a housing having an inlet for receipt of refrigerant and an outlet for return of refrigerant, and a plurality of compressing elements contained in the housing between the inlet and the outlet. The variable capacity compressor includes a valve having an electrical control. The valve is dedicated to fewer than all of the compressing elements. The valve is movable between a first state which communicates refrigerant flow to the compressing elements, and a second state that reduces or stops flow to the compressing elements. In an embodiment of the invention, an unloading controller has an operational modulation mode that includes cycling the valve between on and off states to provide a portion of compressor capacity. The unloading controller is further programmed to provide a minimum delay time between transitions between the first and second states, but no maximum dwell time between transitions.
Abstract:
Die Erfindung betrifft ein Ventil zum alternierenden Befüllen zweier Arbeitsräume (A, B) eines Kolben-Zylinder-Systems (1, 2, 3) einer Pumpe mit einem Fluid, wobei das Ventil zwei Ventilpumpenausgänge (P A, P B ) zur Verbindung mit den Arbeitsräumen (A, B) der Pumpe und ein Ventilsteuewegbar ist, wobei das Ventilsteuerelement (64) Steuerkanäle (67, 82, 83, 84) aufweist, die mit im Ventilgehäuse (60) angeordneten Gehäusekanälen (51, 71, 72, 80, 81) zusammenwirken, wobei der erste Ventilpumpenausgang (P A ) mit den Gehäusekanälen (71, 80) und der zweite Ventilpumpenausgang (P B ) mit den Gehäusekanälen (72, 81) in Verbindung ist, wobei in einem mittleren Bereich zwischen den zwei Endstellungen die Ventilpumpenausgänge (P A, P B ) über Steuerkanäle (82, 83, 84) des Ventilsteuerelementes (64) miteinander in Verbindung sind.
Abstract:
A system for controlling the stroke of an air-operated double diaphragm pump 12 includes a first control valve 30 and a second control valve 34 disposed in parallel within a drive air outlet conduit 28. The first flow control valve 30 has a first air flow capacity and the second flow control valve 34 has a second air flow capacity which is less than about 50% of the first air flow capacity.