Fluid injector testing system

1. An injector testing system, comprising:

a testing rig, comprising:

a receptacle defining an inner chamber, the receptacle having:

an inlet for receiving fluid to be injected by an injector to be tested;

a target outlet for receiving at least a portion of fluid to be injected through the inlet; and

a runoff outlet for receiving fluid to be injected by the injector that misses the target outlet,

the inlet, the target outlet and the runoff outlet opening into the inner chamber, the target outlet being across from the inlet;

an injector mounting structure configured for mounting the injector to be tested outside of the receptacle;

at least one fluid-quantity measuring device fluidly connected to at least one of the target outlet and the runoff outlet, the at least one fluid-quantity measuring device being configured to measure a quantity of fluid having flowed thereto from the at least one of the target outlet and the runoff outlet;

a testing controller in communication with the at least one fluid-quantity measuring device, the testing controller being configured to:

receive signals from the at least one fluid-quantity measuring device representative of (i) a first quantity of fluid having flowed to the at least one fluid-quantity measuring device via the target outlet, and (ii) a second quantity of fluid having flowed to the at least one fluid-quantity measuring device via one of the runoff outlet and both of the runoff outlet and the target outlet;

based on the first and second quantities, determine a proportion of fluid that has been injected into the target outlet of the receptacle.

2. The injector testing system of claim 1 , wherein the at least one of the runoff outlet and both of the runoff outlet and the target outlet is the runoff outlet.

3. The injector testing system of claim 2 , wherein the at least one fluid-quantity measuring device includes:

a first fluid-quantity measuring device fluidly connected to the target outlet and configured to measure the first quantity of fluid; and

a second fluid-quantity measuring device fluidly connected to the runoff outlet and configured to measure the second quantity of fluid.

4. The injector testing system of claim 3 , wherein:

the first fluid-quantity measuring device is a first scale configured to measure a first weight of fluid collected in the first scale;

the first quantity is the first weight;

the second fluid-quantity measuring device is a second scale configured to measure a second weight of fluid collected in the second scale; and

the second quantity is the second weight.

5. The injector testing system of claim 4 , further comprising a table including a plurality of fluid collectors for collecting fluid flowing out of the receptacle, wherein:

a first one of the fluid collectors fluidly communicates with the target outlet and is fluidly connected to the first scale such as to funnel fluid from the target outlet to the first scale;

a second one of the fluid collectors fluidly communicates with the runoff outlet and is fluidly connected to the second scale such as to funnel fluid from the runoff outlet to the second scale.

6. The injector testing system of claim 5 , wherein the testing rig is adjustably mounted to the table such as to align and fluidly communicate (i) the first scale to the target outlet via the first one of the fluid collectors, and (ii) the second scale to the runoff outlet via the second one of the fluid collectors.

7. The injector testing system of claim 6 , wherein:

the table comprises a plurality of guiding recesses;

the testing rig comprises a platform, the receptacle and the injector mounting structure being mounted to the platform; and

the testing rig is adjustably mounted to the table via a plurality of clamps that slidingly engage the guiding recesses of the table and are clamped to the platform of the testing rig.

8. The injector testing system of claim 5 , further comprising:

a tank for containing fluid; and

a pump configured to pump fluid from the tank to the injector to be tested.

9. The injector testing system of claim 8 , wherein the table comprises an inlet connection, the pump being configured to be fluidly connected to the injector to be tested via the inlet connection of the table.

10. The injector testing system of claim 1 , wherein the runoff outlet of the receptacle is located vertically below the target outlet at a lowest point of the inner chamber such that fluid that misses the target outlet flows by gravity to the runoff outlet.

11. The injector testing system of claim 4 , further comprising a pump selectively fluidly connected to the first and second scales for purging fluid from the first and second scales, the testing controller being in communication with the pump and being configured to control the pump to selectively purge the first and second scales.

12. The injector testing system of claim 11 , wherein:

the testing controller controls the pump to stop purging the first scale when fluid contained in the first scale weighs less than a first weight threshold that is equal to or less than 5% of the first weight; and

the testing controller controls the pump to stop purging the second scale when fluid contained in the second scale weighs less than a second weight threshold that is equal to or less than 5% of the second weight.

13. The injector testing system of claim 1 , further comprising a compressor adapted for selectively supplying compressed air into the injector to be tested to clear the injector of fluid.

14. The injector testing system of claim 1 , further comprising a user interface in communication with the testing controller, the user interface being configured to communicate to a user one or more of the first quantity, the second quantity and the proportion of fluid.

15. The injector testing system of claim 14 , further comprising:

a pressure sensor configured to sense a pressure of fluid to be supplied to the injector to be tested;

a temperature sensor configured to sense a temperature of fluid to be supplied to the injector to be tested; and

a flow rate sensor configured to sense a flow rate of fluid to be supplied to the injector to be tested,

wherein the user interface is configured to display the pressure, the temperature and the flow rate.

16. The injector testing system of claim 1 , further comprising:

a cover for selectively enclosing the testing rig; and

a fluid mist collector mounted to the cover for extracting fluid mist.

17. The injector testing system of claim 5 , further comprising:

a tank for containing fluid;

a pump configured to pump fluid from the first and second scales to the tank;

a first valve fluidly connected between the first one of the fluid collectors and the first scale to selectively direct flow of fluid from the first one of the fluid collectors toward the tank or the first scale;

a second valve fluidly connected between the second one of the fluid collectors and the second scale to selectively direct flow of fluid from the second one of the fluid collectors toward the tank or the second scale;

a third valve fluidly connected between the first scale and the pump to selectively block flow of fluid out of the first scale to the pump; and

a fourth valve fluidly connected between the second scale and the pump to selectively block flow of fluid out of the second scale to the pump.

18. The injector testing system of claim 5 , wherein:

the testing rig is a first testing rig, the injector testing system comprises a second testing rig comprising:

a second receptacle defining a second inner chamber, the second receptacle having:

a second inlet for receiving fluid to be injected by a second injector to be tested;

a second target outlet for receiving at least a portion of fluid to be injected through the second inlet; and

a second runoff outlet for receiving fluid to be injected by the second injector that misses the second target outlet,

the second inlet, the second target outlet and the second runoff outlet opening into the second inner chamber, the second target outlet being across from the second inlet;

a second injector mounting structure configured for mounting the second injector to be tested outside of the second receptacle;

the at least one fluid-quantity measuring device includes:

a third scale fluidly connected to the second target outlet and configured to measure a third weight of fluid collected in the third scale; and

a fourth scale fluidly connected to the second runoff outlet and configured to measure a fourth weight of fluid collected in the fourth scale;

a third one of the fluid collectors fluidly communicates with the second target outlet and is fluidly connected to the third scale such as to funnel fluid from the second target outlet to the third scale;

a fourth one of the fluid collectors fluidly communicates with the second runoff outlet and is fluidly connected to the fourth scale such as to funnel fluid from the second runoff outlet to the fourth scale.

19. A method of testing an injector, comprising:

positioning the injector to inject fluid towards an inlet and a target outlet of a receptacle, the inlet and target outlet fluidly communicating with an inner chamber of the receptacle, the target outlet being across from the inlet;

injecting fluid via the injector toward the target outlet via the inlet of the receptacle;

measuring a first quantity of fluid passing through the target outlet;

measuring a second quantity of fluid that is one of (i) fluid that misses the target outlet and passes through a runoff outlet of the receptacle, and (ii) both fluid passing through the target outlet and fluid that misses the target outlet and passes through the runoff outlet of the receptacle;

based on the first and second quantities, determining a proportion of fluid that has been injected into the target outlet of the receptacle.

20. An injector testing rig for testing an injector, comprising:

a receptacle defining an inner chamber, the receptacle having:

an inlet for receiving fluid to be injected by the injector;

a target outlet for receiving at least a portion of fluid to be injected through the inlet, the target outlet being located across from the inlet; and

a runoff outlet for receiving fluid to be injected by the injector that misses the target outlet, the runoff outlet being disposed vertically below the target outlet; and

an injector mounting structure configured for mounting the injector to be tested outside of the receptacle.

21. The injector testing rig of claim 20 , wherein the runoff outlet is disposed at a lowest point of the inner chamber.