Fluid handling – With indicator – register – recorder – alarm or inspection means
Patent
1994-04-20
1995-11-07
Rivell, John
Fluid handling
With indicator, register, recorder, alarm or inspection means
251123, 25112911, 7386129, F16K 3700, G01F 166
Patent
active
054640393
ABSTRACT:
A flowmeter controller, which includes emitter sensor pairs coaxial to a rectilinear measurement tube which has a cross-section uniformly decreasing from its inlet, this latter being of annular radial extension symmetrical about the tube axis, and being provided with a grid of annular structure offering resistance to passage of the fluid under examination which increases from the outer end to the inner end of the grid, and being connected to the tube by an annular inlet duct which is curved in the shape of a circular arc with a uniformly decreasing cross-section and including a deflection fairing an axial flow deflector is provided at the tube outlet to convey the fluid into an annular duct of decreasing cross-section and the radial exit port is closable by a valving member moved along the measurement tube axis by an operating member.
REFERENCES:
patent: 3678731 (1972-07-01), Wells et al.
patent: 3901078 (1975-08-01), McShane
patent: 4078428 (1978-03-01), Baker et al.
patent: 4102186 (1978-07-01), Brown
patent: 4635678 (1987-01-01), Peterman et al.
patent: 5035147 (1991-07-01), Woodward
Ingenieurs de l'automobile, No. 2, Feb. 1980, pp. 21-25, R. Dell'Acqua, et al., "Problemes De Realisation D'Un Debitmetre Massique D'Air Pour Systemes Electroniques D'Alimentation".
Nuovopignone - Industrie Meccaniche e Fonderia S.p.A.
Rivell John
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