Title: Vortex flow rate measuring device

Abstract: A flowmeter comprises a chamber having a rotational symmetry about an axis, provided with a tangential fluid inlet and an axial outlet. The outlet and inlet means cooperate for generating a vortex upon circulation of fluid through the chamber; a speed detector comprises at least one transmitting thermo-element and one receiving thermo-element angularly spaced about the said axis and located in a zone where the circumferential speed of the vortex is proportional to the flow rate.

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Inventors: Calvet, Pierre (Toulouse, FR)
Ching, Gil (Paris, FR)
Rolland, Philippe (Saint-Orens de Gameville, FR)

Application Number: 06/197613
Filing Date: 1980-10-16
Publication_date: 1982-08-03
Assignee: Sev, Marchal Soc Equip Vehicule

Primary Class(es): 73/861.050 73/861.320
Other Classes: G01F1/32; G01F1/70
US Patent Ref:

2518149	August, 1950	Kearsley	738/613.2	Flowmeter
3019647	February, 1962	Beard et al.	738/610.5	Electrical fluid-flow measuring apparatus
3261209	July, 1966	Rae	73/505	Method and apparatus for measuring angular rate and position
3827297	August, 1974	Griverus	738/613.2	FLOW METER PROVIDED WITH A VORTEX CHAMBER
3872304	March, 1975	Little	738/613.2	FLUID FLOW MEASURING SENSOR

Other Refs:
Primary Examiner: Goldstein, Herbert
Assistant Examiner:
Attorney: Larson & Taylor

Claims:

We claim: