Abstract:
The fluid pump (10) includes a housing (20), two rotors (50, 50a), two moving members (80, 80a) and two spring (99, 99a). The housing is connected with inflow pipe (34) and discharge pipe (36). The two rotors is paralleled and engage each other to rotate on the contrary direction respectively. The rotor has plural projections (52) movable to radius direction. The two moving members move to control the width of pathway (501) for the fluid flow. The two springs urges the moving members so that the moving members move for the width of pathway to widen.
Abstract:
يتكون المحرك الهيدروليكي من رأس تحريك أو عدة رؤوس كل منها عبارة عن كامة مثبتة على عمود المحرك وبها ارتفاع واحد أو عدة ارتفاعات في لفة عمود المحرك الواحدة ويحيط بالكامة إحاطة كاملة عدة توابع بعدد ارتفاعاتها. تتكون داخل التوابع غرفة مغلقة وخارجها غرفة تسمى غرفة التحكم. عند تغذية السائل المضغوط لغرفة التحكم تدفع التوابع الكامة للتحرك، وعند دفع الكامة للتوابع تطرد السائل من غرفة التحكم إلى خط آخر في الشوط الآخر من الدورة. يتم التحكم في التغذية بالسائل المضغوط وطرده عن طريق مجموعة من السدادات والصمامات. يمكن توليد عزم معاكس لكبح الحمل أو إيقاف عمود المحرك تماما بدون الحاجة إلى آليات إضافية وكذا دوران عمود المحرك حرا بدون تعشيق حركة التوابع مع الكامة. يمكن أن تستخدم المعدة كمضخة متغيرة الحجم الهندسي بالتحكم في صمامات وسدادات التحكم مع إضافة آلية لدفع التوابع ناحية الكامة في شوط السحب. يوفر الاختراع أشكالا كثيرة للمعدات من الدوران في اتجاه واحد أو كلا الاتجاهين أو أن تستخدم المعدة فقط كمحرك أو كمضخة هيدروليكية أو كليهما معاً.
Abstract:
A downhole drilling motor (100) for well drilling operations includes a tubular housing (12) and a stator (120) disposed in the tubular housing. The stator (120) defines an internal cavity (134) passing therethrough, wherein the stator (120) includes one or more lobes (124) defming at least a portion of the cavity (134). A rotor 122 is operatively positioned in the internal cavity (134) to cooperate with the one or more lobes (124) of the stator (120). At least a portion of the stator (120) or of the rotor (122) comprises a memory material adapted to expand or contract when heat is applied by a localized heating module to the memory material. A fluid escape gap between the rotor (122) and stator (120) is adjusted by applying heat to the rotor and/or stator. At least one controller is adapted to receive input data and provide output signals increasing and/or decreasing electrical current applied to the at least one localized heating module.
Abstract:
A continuously variable hydraulic machine has a vane rotor (412) with a plurality of radial vanes (414) and a connection for a torque transmitting input shaft (422). A cam ring (404) supported in a position surrounding the vane rotor (412) has an interior surface facing the vane rotor (412). The interior surface of the vane rotor (412) define a working volume swept by the vanes (414). The cam ring (404) has flexible portions capable of flexing radially when inwardly directed radial forces are exerted thereon to change the shape of the swept volume within the cam ring (404). A control mechanism (530) exerts a squeezing force on the cam ring (404) to distort the cross-sectional shape of the came ring (404) and the swept volume within the cam ring (404). The cross-sectional shape of the cam ring (404) swept by the vanes (414) is continuously adjustable by the control mechanism for continuously adjusting the displacement of the vane rotor per revolution. The flexible portions of the cam ring (404) are subjected to the same fluid pressure on opposite radial sides around the circumference of the flexible portions of the cam ring (404) so that the cam ring (404) is pressure balanced radially.
Abstract:
A high pressure delivery device for delivering a medicament includes a first chamber for storing a supply of the medicament and a second chamber in fluid communication with the first chamber. A fluid connection path is in fluid communication with the second chamber for administering the medicament. A valving system is in fluid communication with the first chamber, the second chamber and the fluid connection path. The valving system allows a dose of the medicament to be injected from the first chamber into the second chamber while substantially preventing backflow of the dose into the first chamber and substantially preventing leakage through the fluid connection path. The valving system also allows the dose in the second chamber to be administered through the fluid connection path while substantially preventing the dose from flowing back into the first chamber.
Abstract:
Ein hochimpulsiver elektrohydrodynamischer Gravitationstragemotor des geschlossenen Zyklus, bestimmt für Antrieb von Einrichtungen mit grosser Leistung, insbesondere Wellen von Schiffschrauben. Der erfundene Motor besitzt schwingend am Rotor (4) des Motors (1) in den Kammern (12), an Dornen (8) gesetzte Trägekolben (7) in einer Stückzahl von mindestens vier. Darüber hinaus ist zwischen dem Rotor (4) und dem Körper (31) eine Gravitationskammer (5), die vom Rotor (4) durch ein Gehäuse (6) getrennt ist, gebildet.
Abstract:
A variable pump or motor is provided including a housing (1, 2) with inlet and outlet ports (17-23) and a vaned rotor (15). Spool ends (Fig. 23a) are provided at either end of the rotor thereby enhancing the effective sealing of the pump and its overall efficiency. Piston actuators (Fig. 12-22) are also described. A sealing means (Fig. 24) is provided in conjunction with the use of a flexible belt (14) wherein volumetric efficiency is substantially improved.
Abstract:
Es handelt sich um eine Exzenterschneckenpumpe mit zumindest einem Stator (1) aus einem elastischen Material und einem in dem Stator (1) drehbaren Rotor (2), wobei der Stator (1) zumindest bereichsweise von einem Statormantel (3) umgeben ist, wobei der Statormantel (3) als längsgeteilter Mantel aus zumindest zwei Mantelsegmenten (19) besteht und eine Statorspannvorrichtung bildet, mit welcher der Stator in radialer Richtung gegen den Rotor (2) spannbar ist, wobei die Statorspannvorrichtung ein oder mehrere bewegliche Stellelementeaufweist, welche zum Einstellen und Spannen des Stators auf die Mantelsegmente (19) arbeiten. Diese Pumpe ist dadurch gekennzeichnet, dass die Statorspannvorrichtung eine oder mehrere Stellantriebe aufweist, welche für eine automatisierte Zustellung des Stators an die Stellelemente angeschlossen oder mit Stellelementen ausgerüstet sind.
Abstract:
Pumps, in particular sliding vane or roller cell pumps, comprising a rotor with vanes or rollers, side plates or housing walls, a flexible closed stroke ring along which the vanes or rollers slide undergoing radial displacement and thus running in slots in the rotor, whereby the stroke ring has at least one, preferably four cams (3, 5, 9 and 11) arranged on the outer circumference thereof.