Flow profiler for high pressure rotary meters

Claim 2

In a rotary meter, the combination of: a. a housing having an inlet and outlet therein, b. a housing having a chamber means formed therein, c. a rotor journaled in the chamber means, d. a rotor including a plurality of vanes, e. a gate rotatively mounted in the chamber means to prevent fluid from the inlet from directly flowing to the outlet, f. the gate having an open space adapted to receive successive vanes therein, g. a transmission means interconnecting the rotor and the gate to rotate the gate in timed relation with the rotor and in the same direction whereby each vane is moved through the open space of the gate in its path of rotational travel within the chamber means, and h. a profiler means connected in the inlet to increase the velocity of the flow and to concentrate the flow in the area of the gate by directing the flow thereto to produce an increase in the rotational speed thereof.

Claim 3

The combination claimed in claim 1 wherein: a. the inlet has a predetermined cross-sectional area, b. the outlet has a cross-sectional area substantially equal to that of the inlet, and c. the profiler means reducing the cross-sectional area of the inlet, with the range of reduction being between 10 percent to 80 percent.

Claim 4

The combination claimed in claim 1 wherein: a. the open space of the gate defines a pocket, b. the pocket has a leading edge, and c. the profiler means directing the flow toward the leading edge of the pocket to cause an increased incidence of the flow impinging the leading edge to produce an increase in the rotational speed of the gate.

Claim 5

The combination claimed in claim 1 wherein: a. the axis of the rotor and the axis of the gate defining a hypothetical plane, and b. the profiler means directing the flow parallel to the hypothetical plane formed by the rotor and the gate axis whereby a greater portion of the flow will be directed toward the gate.

Claim 6

The combination claimed in claim 4 wherein: a. the inlet and the outlet lying in substantially the same plane, b. the axes of the rotor and the gate lying in a plane substantially perpendicular to the plane of the inlet and the outlet, c. the plane of the inlet and the outlet is disposed above the axes of the rotor and the gate, and d. the profiler means to direct the flow from the inlet parallel to the plane of the axes of the rotor and the gate.

Claim 7

The combination claimed in claim 1 wherein: a. the rotor and the gate rotate iN the same direction whereby any increased rotational speed of the gate responsive to the increased concentration of flow caused by the profiler means is, via the transmission means, additive to the rotational speed of the vane.

Claim 8

The combination claimed in claim 6 wherein: a. a stationary member is axially disposed in the chamber means inwardly of the vanes, b. a flow passage is formed in the chamber means between the housing and the stationary member to communicate the inlet with the outlet, and c. the gate is mounted in the flow passage between the inlet, the stationary member and the outlet to block passage of fluid from inlet from flowing directly to the outlet until the fluid has flowed in the flow passage.

Claim 9

The combination claimed in claim 7 wherein: a. the axis of the rotor is centrally disposed in the housing, b. the axis of the gate is disposed parallel to the axis of the rotor and in spaced relationship therewith, and c. the flow passage defining a substantially ''''U'''' shaped channel extending from the inlet to the outlet with the central closed portion containing the stationary member and the gate.

Claim 10

In a rotary meter operative to rotate in one or the other direction, the combination of: a. a housing having a pair of spaced passages, b. a stationary member disposed within the housing, c. a flow channel formed between the housing and the stationary member, d. the flow channel in communication with each of the spaced passages, e. a rotor journaled in the housing, f. the rotor having a plurality of vanes disposed to rotate within the flow channel, g. a rotary gate journaled in the housing and disposed in the flow channel to prevent direct flow between the spaced passages and to permit flow from one passage into the flow channel and then to the other of the spaced passages, h. the rotary gate having at least one pocket, i. a transmission means interconnecting the rotor and the gate to rotate each in the same direction in a predetermined timed sequence to permit the vanes to pass successively through the gate within the pocket thereof, and j. a flow profiler mounted in the spaced passage which delivers the flow to the flow channel to increase the velocity of the flow therethrough and to concentrate the flow in the area of the gate to produce an increase in the rotational speed of the gate and the rotor.

Claim 11

In a rotary meter operative to rotate in one or the other direction, the combination of: a. a housing having a pair of spaced passages, b. a stationary member disposed within the housing, c. a flow channel formed between the housing and the stationary member, d. the flow channel in communication with each of the spaced passages, e. a rotor journaled in the housing, f. the rotor having a plurality of vanes disposed to rotate within the flow channel, g. a rotary gate journaled in the housing and disposed in the flow channel to prevent direct flow between the spaced passages and to permit flow from one passage into the flow channel and then to the other of the spaced passages, h. the rotary gate having at least one pocket, i. a transmission means interconnecting the rotor and the gate to rotate each in the same direction in a predetermined timed sequence to permit the vanes to pass successively through the gate within the pocket thereof, and j. a flow profiler mounted in the spaced passage which delivers the flow to the flow channel to increase the velocity of the flow therethrough and to concentrate the flow in the area of the gate to produce an increase in the rotational speed of the gate and the rotor.

Claim 12

The combination claimed in claim 9 wherein: a. each of the spaced passages substantially the same size, b. the rotor and the gate journaled in the housing to be rotated in one or the other direction, and c. the flow profiler mounted in one of the spaced passages which delivers the flow into the flow channel.

Claim 13

The combination claimed in claim 10 wherein: a. the spaced passages delivering the flow into the flow channel defining an inlet, and b. the flow profiler mounted in the inlet.

Claim 14

The combination claimed in claim 11 wherein: a. the direction of rotation of the rotor and the gate in one direction upon one of the spaced passages serving as the inlet, and the said direction of rotation to reverse upon the other of the spaced passages serving as the inlet.