Poppet valve system and process

A process comprising:

• providing a valve including a valve seat, a poppet, and an actuator, the valve seat arranged between an inlet and an outlet of the valve, the valve seat having a seat opening defined by a seat opening dimension, the valve seat fixed in relation to the valve, the poppet having a seat face opposing the valve seat and an outlet face arranged toward the outlet, the seat face tapers from a poppet large dimension larger than the seat opening dimension arranged toward the inlet to a poppet small dimension smaller than the seat opening dimension arranged toward the outlet, the poppet movable in relation to a valve housing, the actuator operatively coupled with the poppet;
• providing a bleed air valve that controls bleed air distribution from a turbine;
• and
• controlling a position of the valve to control a position of the bleed air valve;
• energizing the actuator to open the valve by causing the seat face of the poppet to move at least a first offset distance from the valve seat during an opening operation;
• and
• energizing the actuator to open the valve by causing the seat face of the poppet to move at least a second offset distance from the valve seat to clear foreign object debris during a cleaning operation.

A valve system to provide a regulated fluid flow, comprising:

• a system housing having a system inlet at a system inlet end, which receives a pressurized fluid, and a system outlet at a system outlet end which provides the regulated fluid flow;
• a piston assembly arranged in the system housing having a cavity, the cavity having a fluid connection to a vent, the piston assembly configured to regulate the fluid flow;
• and
• a valve to control the fluid connection and control a position of the piston assembly, the valve including:
• a valve housing having a valve inlet at a first end which receives a fluid, and a valve outlet at a second end which provides regulated fluid flow, a structure of the valve housing defining a valve chamber,
• a valve seat arranged between the valve inlet and the valve outlet, the valve seat having a seat opening defined by a seat opening dimension, the valve seat fixed in relation to the valve housing,
• a poppet arranged between the valve seat and the valve outlet, the poppet having a seat face opposing the valve seat and an outlet face opposing a valve outlet end, the seat face tapers from a poppet large dimension larger than the seat opening dimension arranged toward a valve inlet end to a poppet small dimension smaller than the seat opening dimension arranged toward the valve outlet end, the poppet movable in relation to the valve housing,
• a plunger operatively coupled with the poppet, the plunger arranged toward the valve inlet end, the plunger movable in relation to the valve housing, and
• a solenoid within the valve chamber operatively coupled with the plunger, the solenoid provides a displacement force on at least the plunger,
• wherein the poppet is configured to be offset from the valve seat by a variable distance based on actuation of the solenoid;
• and
• wherein the variable distance comprises a first distance defining a normal operational mode, and a second distance defining a cleaning operational mode, greater than the first distance, to clear foreign object debris.