Chemical injector pump
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United States of America Patent
Stats
-
Oct 11, 1988
Issued Date -
N/A
app pub date -
Jan 26, 1988
filing date -
Sep 10, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The liquid pressure capacity of a chemical injector pump is increased substantially by using high pressure gas to drive the gas motor. In one embodiment, the chemical injector pump includes a liquid pump end, a gas motor end, a low pressure position responsive valve, and a high pressure pilot operated valve manipulated by the low pressure valve for delivering high pressure gas to the gas motor. In other embodiments, the chemical injector pump includes a liquid pump end, a gas motor end, and a high pressure position responsive valve for directly delivering high pressure gas to the gas motor.
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