Measuring and testing – Simulating operating condition – Marine
Patent
1979-05-07
1981-02-17
Myracle, Jerry W.
Measuring and testing
Simulating operating condition
Marine
7386174, 123494, G01M 1500
Patent
active
042507456
ABSTRACT:
A restrained turbine high dynamic response mass rate of fluid flow sensor for applications to air flow sensing in internal combustion engine fuel controls. The turbine rotor vanes impart an angular momentum change to the fluid in passing through the turbine vanes and signals are generated corresponding to the resulting reaction forces, these signals combined with signals corresponding to the fluid temperature and downstream pressure to yield mass rate of flow output signals. Variations of the turbine rotor support configurations include a friction free flexural restraint comprised of radial webs which may also act as stator vanes, secured to the turbine hub. In several embodiments, reaction forces are sensed by measuring the reactive torque imposed on the turbine rotorand the flexural restraint supporting the rotor provides a rigid support for absorbing the radial and axial forces while being compliant to torque. In these embodiments, the torque is measured either by allowing limited deflection against the resilience of the flexure and measuring the deflection, or by rigidly resisting angular deflection and measuring the reaction force with a force sensing transducer. In a torque sensing embodiment, a nonlinear spring opposes the angular deflection of the turbine rotor to produce an angular deflection decreasing with increasing flow rates to vary the relationship of the output signals of the sensor in relation to the mass flow rate.
REFERENCES:
patent: 3943891 (1976-03-01), Kinugawa
patent: 4072047 (1978-02-01), Reismuller
patent: 4104915 (1978-08-01), Husse
Blatter Albert
Miller John
Haas, Jr. Gaylord P.
Myracle Jerry W.
The Bendix Corporation
Wells Russel C.
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