Pressure switch having a transducer or pin extending into the fluid flow path

摘要

A pressure switch comprises a housing having a cavity for conveying a pressurized fluid. The cavity extends from an inlet to an outlet and defines a flow path for the fluid. A pressure-transducing element is provided for measuring the fluid pressure. The pressure-transducing element is in fluid communication with the cavity and is at least partially disposed in the flow path between the inlet and the outlet. The pressure-transducing element has a cylindrical shape with a constant diameter and is partially disposed in a bore in the housing. The bore has a constant bore diameter. One end of the pressure-transducing element extends into the flow path.

主权项

1. A pressure switch comprising:
a housing having a cavity for receiving a fluid, the pressure of which will be measured, the cavity extending from an inlet to an outlet and defining a flow path for the fluid, and a pressure-transducing element for measuring the fluid pressure, the pressure-transducing element being in fluid communication with the cavity and at least partially disposed in the flow path between the inlet and the outlet, wherein the pressure-transducing element has a cylindrical shape with a constant diameter, the pressure-transducing element is partially disposed in a bore in the housing, the bore having a constant bore diameter, one end of the pressure-transducing element extends into the flow path, and the pressure-transducing element is movable in the bore such that the pressure-transducing element is configured to move further into or further out of the flow path in response to a change in the pressure of the fluid in the flow path.