Method and system for reducing noise and for positioning of piston in a compressor motor
AssigneeNidec Global Appliance Brasil Ltda.
InventorMarcos Roberto De SOUZA
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Abstract
The present invention refers to a method and system for reducing noise and positioning of piston (15) in starting failure of engine (20) configured to significantly reduce the noise generated during a starting failure of the engine (20), in addition to allow the piston (15) to be positioned in a position more favorable to a new start.
Claims20
Method for reducing noise and positioning of piston (15) in starting failure of electric motor (20) attached to a piston compressor configured by means of a failure detection logic (100), a de-energization logic (200) and a positioning logic (300) of piston (15), the electric motor (20) being able to be driven by means of a set of keys (21), the method for reducing noise and positioning of piston in starting failure of electric motor (20) being characterized in that:
- the failure detection logic (100) comprises at least the steps of:
- obtaining at least one current position (S0), one more favorable position (S1) and one next position (S2) of the piston (15);
- comparing the next position (S2) with the most favorable position (S1);
- the de-energizing logic (200) comprises at least the step of:
- keeping the magnetic field active;
- the positioning logic (300) of piston (15) comprises the step of:
- positioning the piston (15) in a new current position (S0).
System for reducing noise and positioning of piston (15) in starting failure of electric motor (20) attached to a piston compressor consisting of at least one supply unit, one failure detection module and one actuation module, wherein the supply module comprises at least one set of keys, the failure detection module comprises at least one data processor element and the actuation module comprises at least one control element, the system for reducing noise and positioning of piston (15) in starting failure of electric motor (20) being characterized in that:
- the power module is configured to selectively energize the set of keys and allow the electric motor (20) to start;
- the failure detection module is configured to obtain at least one current position (S0), one most favorable position (S1) and one next position (S2) of the piston and compare the next position (S2) with the most favorable position (S1);
- the actuation module is configured to gradually reduce the voltage on the keys of the energized set of keys and to position the piston (15) in a new current position (S0).
Dependencies are inferred from the claim text.