Abstract:
High pressure diaphragm compressor (1) for pressurising a gaseous fluid to a pressure of at least 1OMPa, the compressor (1) comprising a compressor head (2) having an oblong shaped chamber (3). A hydrogen fuelling station comprising such a compressor is also disclosed.
Abstract:
Полезная модель относится к насосостроению, в частности к мембранным (диафрагменным) насосам и может быть применена в различных областях техники для перекачивания жидких или газообразных сред. Мембранный насос с МГД-приводом содержит не менее, чем один перекачивающий тракт, включающий впускной и выпускной клапаны и рабочую камеру с приводной мембраной. Кроме того заявляемый насос дополнительно содержит отделенную от рабочей камеры приводной мембраной, заполненную токопроводящей жидкостью приводную камеру, две противоположные стенки которой являются электродами, подключенными к источнику тока, и управляющую магнитную систему. В качестве токопроводящей жидкости возможно использование легкоплавких металлов и/или сплавов. Использование данного технического решения позволяет дистанционно (без разборки) контролировать состояние расходных элементов устройства, обеспечивает высокую точность дозирования перекачиваемой среды и минимизацию энергетических потерь в приводном механизме.
Abstract:
Methods, systems, assemblies, computer program products and devices produce hyperpolarized gas by: (a) providing a plurality of cells (30), each having a respective quantity of target gas held therein; (b) polarizing the target gas in and/or from the cells in a desired order to provide separate batches of polarized gas; and (c) repolarizing the previously polarized target gas held in at least one of the cells when the polarization level falls below a predetermined value.
Abstract:
Eine Membranpumpe (1, 1', 1"), insbesondere zur Verwendung im Abgasstrang eines Verbrennungsmotors (70), mit einem Druckgehäuse (2), dessen Innenvolumen (4) über eine Anzahl von elastisch verformbaren Membranen (6) in eine Mehrzahl von gasseitig voneinander getrennten Teilvolumina (8, 10) aufgeteilt ist, wobei die oder jede Membran (6) derart mit einer Vorspannkraft beaufschlagt ist, dass im drucklosen Zustand das die Primärseite bildende Teilvolumen (8) im Rahmen der Verformbarkeit der oder jeder Membran (6) einen Minimalwert aufweist, soll beim Einsatz im Abgassystem eines Verbrennungsmotors (70) besonders wirkungsgradsteigernd wirken. Dazu ist erfindungsgemäß zur Aufbringung der Vorspannkraft auf die Membran (6) eine Blattfeder (36) als Rückstellfeder vorgesehen.
Abstract:
A muffler for a positive displacement pneumatic motor includes a case, an inlet, a diffuser, a pathway, and sound absorbing material. The inlet and the diffuser are attached to the case. The pathway extends between the inlet and the diffuser and allows ice to travel through the muffler. The sound absorbing material is positioned in the pathway and includes more than one duct through which gas passes.
Abstract:
Pompe alternative simple, destinée à mettre à très haute pression - jusqu'à plusieurs milliers de bars - un liquide non- lubrifiant (essence, alcool, gaz liquéfié, etc.). Composée d'un boîtier (1) dont l'intérieur se trouve séparé en deux chambres indépendantes (2) et (3) par une membrane métallique étanche et suffisamment souple (4), genre clinquant. Le liquide lubrifiant dans la chambre (2) dont les pulsations cycliques sont créées par le dispositif (12) - indépendant du présent brevet - impose ses variations de pression et de volume au liquide non- lubrifiant de la chambre (3), sans que ce liquide non- lubrifiant soit soumis à des frottements mécaniques. La membrane n'intervient pas mécaniquement sur les deux liquides qu'elle sépare. Une utilisation possible : injection à très haute pression d'essence, d'alcool, de gaz liquéfié, etc. dans les moteurs à explosion.
Abstract:
A device and method for treating a wound of a patient with negative pressure is provided. The device comprises a heat-assisted pump system. The pump system can be powered in part by heat derived from the patient. The pump system may be configured to be highly planar, light weight, and portable. The pump system may comprise a Stirling engine or a thermal acoustic engine.
Abstract:
An air motor has a source of pressurized air, two air chambers, a pilot valve and a directional control valve. The spool of the directional control valve is of the unbalanced type and includes a piston surface in continuous communication with atmosphere through an exhaust port and a pressurized restricted port in alternating communication with the large end of the spool and the piston surface. The alternating communication of the source of pressurized air through the restricted port is restricted relative to the continuous communication of the piston surface with atmosphere. At the point of shift of the directional control valve, the piston surface is in communication with the source of pressurized air through the restricted port.
Abstract:
A drive system for a pump includes a housing defining an internal pressure chamber, a piston disposed within the internal pressure chamber and having a first and second pull chambers and a central slot for receiving a drive, a first pull with a free end slidably secured within the first pull chamber and a second pull with a free end slidably secured within the second pull chamber, and a first fluid displacement member coupled to the first pull and a second fluid displacement member coupled to the second pull.