Pressure-actuated switch for compressors
AssigneeWIKA Alexander Wiegand SE & Co. KG
InventorsAshish Kumar, Umang Gupta
Life of this patent
Estimating the term…
Abstract
A pressure-actuated switch having a pressure port, a diaphragm, a range spring, an actuator plate, a differential plate, and an electrical switch. A certain pressure level moves the diaphragm against the range spring at the pressure port and thus deflects the actuator plate. The actuator plate is coupled to the electrical switch via a snap spring, wherein the electrical switch can be switched on or off via the deflection of the actuator plate and the snap spring. The differential plate controlled by a differential spring is connected to the actuator plate and supports the actuator plate in a first portion of movement, wherein the differential plate is decoupled from the actuator plate in a second portion of movement of the actuator plate.
Claims15
A pressure-actuated switch comprising:
- a pressure port;
- a diaphragm;
- a range spring;
- an actuator plate;
- a differential plate;
- and
- an electrical switch,
- wherein a certain pressure level at the pressure port moves the diaphragm against the range spring and thus deflects the actuator plate,
- wherein the actuator plate is coupled to the electrical switch via a snap spring,
- wherein the electrical switch is adapted to be switched on or off via the deflection of the actuator plate and/or a snap arm and the snap spring,
- wherein the differential plate controlled by a differential spring is connected to the actuator plate or the snap arm and supports the actuator plate in a first portion of movement, and
- wherein the differential plate is decoupled from the actuator plate in a second portion of movement of the actuator plate.
Dependencies are inferred from the claim text.