SU80789A1 - Jet Test Device - Google Patents

Description

Devices for testing jet nozzles are known in terms of the amount of liquid flowing through its orifice in a certain period of time. For this purpose, water clocks are used in the device, which are made in the form of two adjacent, alternately filled and automatically emptied vessels, and they are rotatably fixed on a common axis.

A distinctive feature of the described device is that it provides automatic cut-off of the fluid entering the test jet. For this purpose, the valve controlling this flow is fixed on the vessel axis of the water clock. In addition, two tanks with a constant level of liquid are used in the device, one of which nourishes the vessels of the water clock with liquid and the other-tested jet.

FIG. 1 shows a diagram of the device at the moment of filling the water clock with liquid; in fig. 2 the same, at the moment of filling the test jet with liquid.

The device consists of a vessel 1, a water watch 2 with a drain logo 4, and a vessel 3 with a siphon pressure tube 5.

The vessel / is provided with a tube 6 with a calibrated orifice through which liquid enters the compartments of the vessel of a water clock 2, and another tube 12 for feeding the vessel 3, where level constancy is reached by means of a drain tube 11.

Water clock 2 is made in the form of two adjacent vessels, pivotally fixed on a common axis. The tilting of the water clock after exactly one minute is achieved by selecting the volume of their vessels and regulating them with additional weights 7.

The test jet 9 is placed on the lower end of the siphon tube 5.

When filling the right compartment of the water clock vessel (Fig. 1), the valve 8 in the vessel 3, rigidly connected to the water clock axis, closes the intake end of the siphon tube. Above the jet 9 is a column of fluid. Upon filling, the water clock 2 overturns, specks