Positive displacement fluid translating device

Claim 2

An improved positive displacement fluid translating device comprising: a hollow case having an inlet an outlet, and a cylindrical cavity communicating with said inlet, and outlet; a hollow rotor valve rotatably mounted in said cylindrical cavity, said rotor valve having a plurality of ports in its outer cylindrical surface; land means within said meter case slidingly engaging said outer cylindrical surface of said rotor valve at spaced locations to form spaced-apart valve means preventing fluid flow from said inlet to said outlet except through said ports in said rotor valve; a cylindrical rotor rotatably mounted on a shaft within said rotor valve with its rotational axis parallel and eccentric to the rotation axis of said rotor valve thereby forming an annular chamber therebetween; connecting means coupling said rotor valve and said cylindrical rotor so they rotate simultaneously; a plurality of vane members having inner and outer ends reciprocally mounted in said rotor in radial grooves, said vane members extending from said rotor so their outer ends engage the inner cylindrical surface of the rotor valve dividing said annular chamber into a plurality of positive displacement fluid compartments which change in volume as said rotor valve and said rotor rotate; and floating means commonly engaging the inner ends of sAid plurality of vane members to keep their outer ends against said inner cylindrical surface of said rotor valve.

Claim 3

The improved fluid device as defined in claim 1 wherein the connecting means includes a slidable key means between the rotor valve and the cylindrical rotor coupling them for simultaneous rotation about their respective axes.

Claim 4

The improved fluid device as defined in claim 2 wherein gear means are attached to rotor valve and to a meter registering device to record rotational movement of said rotor valve which is directly proportional to the volume of fluid passing from the inlet to the outlet.

Claim 5

The improved fluid device as defined in claim 2 wherein the floating means includes spring means on the inner ends of the vane members to urge them radially outwardly against the inner cylindrical surface of the rotor valve.

Claim 6

The improved fluid device as defined in claim 4 wherein the spring means is a ring means and the rotor includes a blind annular groove in its central portion to receive said ring means.

Claim 7

The improved fluid device as defined in claim 2 wherein the ports in the outer cylindrical surface of the rotor valve are equally spaced circumferentially about its outer cylindrical surface.

Claim 8

The improved fluid device as defined in claim 2 wherein the land means are located approximately 180* apart and are of a width that fully closes each port as said ports slidingly cross said lands during rotation of the rotor valve thereby closing the associated variable displacement chamber associated with such port as crosses land to prevent flow from the inlet to the outlet.

Claim 9

The improved fluid device as defined in claim 7 wherein passage means are provided within the case between the spaced-apart land means whereby the outer cylindrical surface of the rotor valve inclusive of its ports will be in free fluid communication alternately with the inlet or the outlet except for those portions of said rotor valve sliding engaging said land means.

Claim 10

The improved fluid device as defined in claim 2 wherein the shaft on which the rotor is rotatably mounted includes adjusting means whereby the degree of eccentricity between the rotational axis of said rotor and said rotor valve mounted within the meter case can be varied to change the displacement of the plurality of positive displacement fluid compartments for calibrating the device.

Claim 11

The improved fluid device as defined in claim 9 wherein the adjusting means includes a stub shaft eccentrically attached to the shaft on which the rotor is rotatably mounted, said stub shaft supporting said shaft from the meter case through a fitted bore whereby adjusting rotation of said stub shaft will vary the eccentricity between said rotor and the rotor valve.

Claim 12

An improved fluid meter having a registering unit form measuring flow therethrough comprising: a hollow meter case having an inlet, an outlet, and an end plate closing its open end; 1 a closed, hollow rotor valve rotatably mounted in said meter case, said rotor valve having a plurality of equally spaced ports in its outer cylindrical surface; gear means connecting said rotor valve with the registering unit; drive means connecting said rotor valve and the registering device whereby rotational movement of the former is recorded by the latter; 1 a pair of land means slidingly engaging said outer cylindrical surface of said rotor valve at spaced locations within said case to form valves closing said ports as they cross said lands; passage means between said land means communicating with said ports in said rotor valve, one of the passage means in communication with said inlet and the other in communication with said outlet; a rotor rotatably mounted within said closed hollow rotor valve on a shaft with its rotational axis parallel and eccentric to the rotational axis of said rotor valve whereby an annular space of varying cross section is formed between the outer surface of said rotor and the inner cyliNdrical surface of said rotor valve, said rotor having a plurality of radial slots parallel to its rotational axis; connecting means coupling said rotor valve and said cylindrical rotor so they rotate simultaneously; 1 a plurality of vane members having inner and outer ends reciprocally mounted in said radial slots of said rotor and extending from said outer surface of the rotor so their outer ends engage the inner cylindrical surface of said rotor valve thereby dividing said annular space therebetween into a plurality of substantially fluid tight compartments with each compartment having one of said ports cooperating therewith whereby an accurate measured volume of fluid can be transferred from said meter inlet to its outlet as rotation of said rotor valve and rotor causes said compartment to increase in volume when in communication with the inlet and decrease in volume when in communication with the outlet; and floating means commonly engaging said inner ends of said plurality of vane members to keep their outer ends against said inner cylindrical surface of said rotor valve.

Claim 13

An improved fluid meter having a registering unit form measuring flow therethrough comprising: a hollow meter case having an inlet, an outlet, and an end plate closing its open end; 1 a closed, hollow rotor valve rotatably mounted in said meter case, said rotor valve having a plurality of equally spaced ports in its outer cylindrical surface; gear means connecting said rotor valve with the registering unit; drive means connecting said rotor valve and the registering device whereby rotational movement of the former is recorded by the latter; 1 a pair of land means slidingly engaging said outer cylindrical surface of said rotor valve at spaced locations within said case to form valves closing said ports as they cross said lands; passage means between said land means communicating with said ports in said rotor valve, one of the passage means in communication with said inlet and the other in communication with said outlet; a rotor rotatably mounted within said closed hollow rotor valve on a shaft with its rotational axis parallel and eccentric to the rotational axis of said rotor valve whereby an annular space of varying cross section is formed between the outer surface of said rotor and the inner cyliNdrical surface of said rotor valve, said rotor having a plurality of radial slots parallel to its rotational axis; connecting means coupling said rotor valve and said cylindrical rotor so they rotate simultaneously; 1 a plurality of vane members having inner and outer ends reciprocally mounted in said radial slots of said rotor and extending from said outer surface of the rotor so their outer ends engage the inner cylindrical surface of said rotor valve thereby dividing said annular space therebetween into a plurality of substantially fluid tight compartments with each compartment having one of said ports cooperating therewith whereby an accurate measured volume of fluid can be transferred from said meter inlet to its outlet as rotation of said rotor valve and rotor causes said compartment to increase in volume when in communication with the inlet and decrease in volume when in communication with the outlet; and floating means commonly engaging said inner ends of said plurality of vane members to keep their outer ends against said inner cylindrical surface of said rotor valve.

Claim 14

The improved fluid meter as defined in claim 11 wherein the connecting means includes slidable key means between the rotor valve and the rotor whereby timed simultaneous rotational movement about their respective eccentric axes will occur to maintain registration between each compartment and its associated port.

Claim 15

The improved fluid meter as defined in claim 11 wherein the vane members are biased against the inner cylindrical surface of the rotor valve the floating means acting on their inner ends.

Claim 16

The improved fluid meter as defined in claim 11 wherein the shaft on which the rotor is rotatable supported within the rotor valve is supported from the meter case and includes adjusting means whereby the eccentricity of the rotational axes of said rotor and said rotor valve can be varied to change the volumetric capacities of the plurality of compartment with said rotor valve.

Claim 17

A positive displacement meter having a flow registering device comprising a meter case with a closed cylinder valve mounted therein for rotation and connected to drive said registering device, said cylinder valve having a plurality of compartments therein formed by a vaned rotor disposed for rotation therewithin on an axis eccentric to the axis of rotation of said cylinder valve, said vaned rotor having a floating ring commonly engaging the inner ends of the vanes in the rotor to maintain them in timed relationship and said cylinder valve also having a plurality of ports circumferentially disposed in said cylinder valve, one of said ports cooperating with each of said compartments, a pair of land means slidingly engaging said cylinder valve at spaced locations forming two separated passage means on opposite sides of said land means, each of which is in communication with a cylindrical sector of said cylinder valve and its ports, an inlet connected to one of said separated passage means and an outlet connected to the other of separated passage means whereby fluid entering said inlet passes through said compartments in said cylinder valve when passing to said outlet driving the cylinder valve proportional to fluid flow through the meter.

Claim 18

A positive displacement meter having a flow registering device comprising a meter case with a closed cylinder valve mounted therein for rotation and connected to drive said registering device, said cylinder valve having a plurality of compartments therein formed by a vaned rotor disposed for rotation therewithin on an axis eccentric to the axis of rotation of said cylinder valve, said vaned rotor having a floating ring commonly engaging the inner ends of the vanes in the rotor to maintain them in timed relationship and said cylinder valve also having a plurality of ports circumferentially disposed in said cylinder valve, one of said ports cooperating with each of said compartments, a pair of land means slidingly engaging said cylinder valve at spaced locations forming two separated passage means on opposite sides of said land means, each of which is in communication with a cylindrical sector of said cylinder valve and its ports, an inlet connected to one of said separated passage means and an outlet connected to the other of separated passage means whereby fluid entering said inlet passes through said compartments in said cylinder valve when passing to said outlet driving the cylinder valve proportional to fluid flow through the meter.