Flow sensor and fuel control system

Details Flow sensor and fuel control system Flow sensor and fuel control system

1996-12-05

1998-08-18

Dombroske, George M.

Measuring and testing

Simulating operating condition

Marine

73119A, G01F 0122

Patent

active

057959986

ABSTRACT:
Disclosed is a flow sensor comprising a cylinder and a piston movable within the cylinder and dividing the cylinder into first and second chambers. The first chamber communicates with an inlet and the cylinder has an orifice which cooperates with the piston to define an outlet from the first chamber. The area of the orifice varies with the position of the piston within the cylinder. The apparatus operates to vary the pressure in the second chamber so as to move the piston in response to fluid flow to maintain a substantially constant pressure drop between the inlet and outlet, each unique axial position of the piston within the cylinder indicating a particular flow rate. A transducer senses the position of the piston and thus the direction and rate of flow.

REFERENCES:
patent: 4304136 (1981-12-01), McCabe et al.
patent: 4366718 (1983-01-01), Nelson
patent: 4459860 (1984-07-01), Walters
patent: 4507976 (1985-04-01), Banko
patent: 4619146 (1986-10-01), Teodorescu et al.
patent: 5377538 (1995-01-01), Cardinal
patent: 5408872 (1995-04-01), Nonaka
patent: 5562076 (1996-10-01), Madl

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