Measuring and testing – Blower – pump – and hydraulic equipment
Patent
1978-08-07
1980-01-01
Yasich, Daniel M.
Measuring and testing
Blower, pump, and hydraulic equipment
137489, G01F 120, G01L 700
Patent
active
041810171
ABSTRACT:
A fluid pressure operated system adapted to identify malfunctioning components in the system with pressure and flow indicating devices incorporated in the system to continuously monitor fluid volume and pressure. Further, each control or regulating component utilized in the system, as well as rotary or linear motion producing components are provided with shut-off valves, which are operable to selectively isolate any component from the rest of the fluid system. Accordingly, by isolating in turn each component from the rest of the system and observing fluid pump output and pressure, a faulty component is easily identified for replacement or repair. In a hydraulic system the pressure and flow indicating devices are incorporated in the system's relief valve. The flow indicating device having a calibrated end portion externally visible, rests on the valve spool and accordingly signals the spool position relative to the valve seat to provide an accurate indication of hydraulic fluid by-passing to tank.
REFERENCES:
patent: 2392951 (1946-01-01), Salisbury
patent: 3250293 (1966-05-01), Adams et al.
patent: 3545887 (1970-12-01), Kobnick
patent: 3765448 (1973-10-01), Dussia
patent: 3857282 (1974-12-01), Dooeley et al.
patent: 4087073 (1978-05-01), Runberg et al.
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