A purifier treating a batch of liquid with ozone uses a reversible pump (10) that directs liquid flow along different courses during forward and reverse pumping.
Waste heat, e.g. from a vehicle engine, is supplied to heater (3), which heats up a heat transfer fluid pumped around the system by a reversible pump (11).
At least the second hydraulic pump is a variable displacement bidirectional pump.
The pump assembly (54) can be a two-line, two-valve pump that is removable from the riser pipe (30).
In different operating modes the apparatus acts as a bidirectional pump or as a hydraulic motor.
Selecting an operating mode enables the apparatus to act as a bidirectional pump or a hydraulic motor.
One embodiment of the thermally driven pump of the present invention utilizes a thermoelectric material to assist with the thermal transpiration process resulting in a substantially symmetrical, bidirectional pump.
The bi-directional pump (30) is reversed so as to pump fluid in a second opposite direction (132, 134, 136), thereby causing the accumulated chemicals (114) to be carried to the detector (50).
The cart includes a new oil reservoir (712), an old oil container (720), various valves (718/724) and a bidirectional pump (722) for performing various functions.
The bi-directional pump (30) pumps fluid in a first direction (118, 112, 116a) through the sorbent material (28), thereby causing some of the chemicals (114) to accumulate on one side of the sorbent material (28).
The second fluid supply path further includes a bidirectional pump so as to direct fluid flow in either direction through the second fluid supply path.
An apparatus (10) for detecting chemicals (114) in a fluid includes a sorbent element (18) for sorbing said chemicals, said sorbing element (18) connected to a bi-directional pump (30) and to a detector (50).
The hydraulic control system disclosed herein employs a pair of combination poppet/spool valves (17, 19) to control the operation of a hydraulic cylinder (121) driven from a bidirectional pump (127).
A switching valve device that, even if a bi-directional pump is used, can allow a high flow rate without requiring an additional pressure source and that do not constrain the design of a fluid pressure cylinder.
Powered by a rechargeable battery, the bi-directional pump is controlled by two buttons, one to draw up the solution and the other to release it from the pipette.
Requêtes fréquentes français :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
Requêtes fréquentes anglais :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
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