Whirlpool S.a.

Embraco-industria De Compressores E Solucoes Em Refrigeracao, Ltda.

Daniel De Figueiredo Maria

Dietmar Erich Bernhard Lilie

Roberto Andrich

Mario Henrique Farias Santos

A method for detecting an improper opening of a multiple suction reciprocating compressor suction valve of a reciprocating compressor includes monitoring, by an electronic processing core, a variable proportional to torque of an electrical engine that cooperates with a piston of the reciprocating compressor, the variable being measured by a sensor. A detection of the improper opening of the suction valve is made by a detection of at least one peak of the variable proportional to torque of the electrical engine during power of the electromagnetic field generator element.

Improper opening detection method of multiple suction reciprocating compressor suction valve

A method for protection and diagnosis of a linear compression including at least one electronic control. At each work cycle of the linear compressor, the protection method includes detecting a suction time of the linear compressor; detecting a compression time of the linear compressor; and calculating, after detecting a compression time of the linear compressor, a decision parameter equivalent to the difference between the previously detected suction time and the compression time.

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Daniel De Figueiredo Maria