Pumps – Condition responsive control of pump drive motor – Responsive to accumulation of pumped liquid in receiver
Patent
1981-09-30
1985-05-07
Smith, Leonard E.
Pumps
Condition responsive control of pump drive motor
Responsive to accumulation of pumped liquid in receiver
417390, 417393, 417392, 222 3, 222 61, 222373, F04B 3502
Patent
active
045155160
ABSTRACT:
A gas compressor has at least one closed container with gas inlet means for filling the container with a gas to be compressed and gas outlet means through which compressed gas can leave the container. When the container has been filled with gas to be compressed, a fluid is forced into the container to compress the gas therein and force it out of the container. After the container has been filled with fluid and the gas forced therefrom, the fluid is drained while gas again enters and fills the container. The output of the container is generally connected to a gas storage tank and the cycle of filling the container with gas and then expelling it is repeated until a desired pressure of gas is obtained in the storage tank.
The compressor is particularly suited to filling a storage tank, such as a natural gas storage tank in a vehicle, over an extended period of time of several hours. However, a unique auxilary storage tank may be used with the compressor to provide for fast filling of another storage tank, such as the vehicle tank, by transferring substantially the entire contents of the first storage tank to the second storage tank. Such transfer is accomplished by progressively reducing the storage space of the storage tank, thus forcing the stored gas into the second tank. This is preferably done by filling the tank with a fluid, thereby forcing the gas out.
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Perrine Carol-Anne
Perrine Paul M.
Champion, Perrine & Associates
Smith Leonard E.
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