US 4,054,054 AGranted

Fluid flow measurement apparatus

OwnerFloyd M. Minksinventor

Life of this patent

Estimating the term…

Loading patent…

Abstract

A device for indicating the interval for the flow of a predetermined volume of fluid. The fluid flow measurement device includes a housing having a cavity therein for being interposed along a fluid line. A flexible diaphragm having a convolution therein is included within the cavity for dividing the cavity into a first and second chamber. The flexible diaphragm prevents the flow of the fluid between the first and second chambers. A fluid port connects the second chamber to the fluid flow line. A fluid outlet connects the first chamber to the fluid flow line. The apparatus also includes a bypass for diverting the fluid flow from the fluid port of the second chamber through a fluid inlet into the second chamber, whereby the fluid flowing into the second chamber will displace the flexible diaphragm into the first chamber thereby expelling the predetermined volume of fluid from the first chamber.

Claims12

Dependent claims

A device for indicating the interval for the flow of a predetermined volume of fuel in an internal combustion engine fuel system, said device comprising:

a housing having a cavity and a circumferential recess therein, said housing being interposed in series with a fuel line of said internal combustion engine fuel system;
a piston freely movable within said cavity of said housing for moving generally along a longitudinal axis thereof, said piston including sides tapered upwardly and outwardly therefrom;
a flexible diaphragm coupled to said piston within said cavity for dividing said cavity into a first chamber and a second chamber, said flexible diaphragm preventing the flow of said fuel between said first and second chambers, said flexible diaghram including a convolution therein for folding along said tapered sides of said piston, with said convolution folding within said circumferential recess within said housing;
means for connecting said first chamber to a fuel inlet from said internal combustion engine fuel system;
means for connecting said first chamber to a fuel outlet to said internal combustion engine system;
means for bypassing said fuel flow from said fuel inlet of said first chamber through a fuel port into said second chamber, whereby a fuel flow into said second chamber will displace said flexible diaphragm for expelling said predetermined volume of fuel from said first chamber through said fuel outlet and into said internal combustion engine fuel system.

3 more elements

A device for indicating the interval for the flow of a predetermined volume of fluid through a fluid transmission line, said device comprising in combination:

a housing having a fluid inlet and a fluid outlet adjacent a first end thereof for coupling said housing in series with the fluid transmission line, with said housing having an inner circumferential recess therein defined between said first end and a second end of said housing;
a piston freely movable longitudinally within said housing for defining a first cavity of at least said predetermined volume and for defining a second cavity of inversely variable volume, said piston having a base section and generally upstanding sides for guiding said piston from said second end into said first end of said housing;
a flexible diaphragm coupled between said piston and said housing for preventing the flow of fluid between said first and second cavities, said flexible diaphragm including a convolution section therein for folding along the sides of side piston, said diaphragm coupled to said housing within said circumferential recess therein, said circumferential recess being of a sufficient length for maintaining the convolution section thereof within said circumferential recess as said piston travels through said housing;
bypass means coupled to the fluid transmission line adjacent said fluid inlet for diverting the fluid into said second cavity for displacing said piston, thereby expelling the predetermined volume of fluid from said first cavity into said fluid outlet;
and
indicating means for indicating the interval required for said piston to travel through said housing from said second end to said first end thereof.

3 more elements

Dependencies are inferred from the claim text.