Pressure control for a fluid sprayer
AssigneeWagner Spray Tech Corporation
InventorsJoshua James Hukriede, Frank Gregory Mirazita
Life of this patent
Estimating the term…
Abstract
A fluid sprayer is provided and includes a fluid pump assembly having an outlet path and a motor assembly configured to drive the fluid pump assembly to pressurize fluid. The motor assembly is controlled by a throttle mechanism. The fluid sprayer also includes a fluid pressure control assembly including a mechanical pressure transducer configured to be displaced as a function of fluid pressure in the outlet path. The fluid pressure control assembly is configured to control the throttle mechanism as a function of displacement of the mechanical pressure transducer.
Claims21
1-20. (canceled)
A paint delivery system comprising:
- a paint pump assembly having an outlet path;
- a motor assembly configured to drive the paint pump assembly to pump paint through the outlet path;
- a motor control component that controls operation of the motor assembly;
- and
- a paint pressure control assembly including a pressure responsive member that is displaced as a function of paint pressure in the outlet path, the paint pressure control assembly being hydraulically coupled to the motor control component such that operation of the motor assembly is controlled as a function of displacement of the pressure responsive member.
A paint delivery system comprising:
- a paint pump configured to generate a flow of paint through an outlet path;
- a pressure responsive member that is responsive to changes in paint pressure in the outlet path;
- an electric motor operably coupled to the paint pump;
- and
- an electric control component that is liquid coupled to the pressure responsive member and configured to control operation of the electric motor as a function of paint pressure in the outlet path.
Dependencies are inferred from the claim text.