Fluid supply apparatus including plural reservoirs and condition responsive control of pump drive motor by contaminant sensing probes

摘要

An automobile hydraulic braking circuit comprises two reservoirs in addition to the main hydraulic fluid reservoir. One additional reservoir can replenish the other which in turn can replenish the main hydraulic reservoir. A peristaltic pump controls fluid flow to the main reservoir from the adjacent additional reservoir. Probes in the additional reservoirs operate in conjunction with control circuitry to inhibit operation of the pump to prevent contaminated fluid from being supplied to the main reservoir.