Patent ID: 6015268
Filing Date: 2000-01-18
Classification: F04B,Y10T

Abstract:
A precision metering multiple fluid pumping system comprising;main pump means for pumping a primary fluid;auxiliary pump means for pumping a secondary fluid;leak detecting means for visible observing and detecting leaks in seals in said auxiliary pump means for early detection of off ratio pumping of said secondary fluid to said primary fluid;said leak detecting means comprising a container in which a fluid is visible and a drain conduit connecting said container to said auxiliary pump means adjacent said sealsconnecting means connecting said auxiliary pump means to said main pump for operation in unison therewith;said connecting means including continuously adjustable variable means for adjusting the ratio of secondary fluid to primary fluid pumped over a predetermined range;whereby fluid leaking by said seals flows into said container providing a visible indication said seals are leaking so that the amount of secondary fluid pumped may be precisely metered.