Patents by Inventor Marcelo Knies

Marcelo Knies has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20150337822
    Abstract: A compressor comprising: a cylinder crankcase (10) defining a compression chamber (13) housing a reciprocating piston (22); an actuating means (40) coupled to the piston (22); and a resonant spring means (50) having a first and a second diametrical end segment (50a, 50b) respectively affixed to the actuating means (40) by a first securing means (MF1) and to the cylinder crankcase (10) by a second securing means (MF2), the latter comprising: a base vise jaw (60, 60?) affixed to the second diametrical end segment (50b); a top vise jaw (70, 70?) mounted between opposite portions of the cylinder crankcase (10) and seated, pressed and locked against the base vise jaw (60, 60?), in a condition in which the axes of the end diametrical segments (50a, 50b) intercept the axis of the compression chamber (13) and in which the piston (22) has a predetermined axial position in the compression chamber (13).
    Type: Application
    Filed: December 20, 2013
    Publication date: November 26, 2015
    Inventors: Dietmar Erich Bernhard Lilie, Marcelo Knies, Clodovir Gallo, Rinaldo Puff, Henrique Bruggmann Muhle
  • Patent number: 8944785
    Abstract: A piston and cylinder combination driven by linear motor with cylinder position recognition system, including a support structure forming an air gap; a motor winding generating a variable magnetic flow along part of the air gap; a cylinder having a head at one end; a piston connected to a magnet, the magnet driven by the magnetic flow of the motor winding to move inside a displacement path including at least partially the air gap; the displacement of the magnet making the piston reciprocatingly move inside the cylinder; and an inductive sensor disposed at a point of the displacement path of the magnet, such that when the piston reaches a position of closest approach to the cylinder head, the inductive sensor detects a variation in the magnetic field resulting from the corresponding position of the magnet, and generates a voltage signal arising from this magnetic field variation.
    Type: Grant
    Filed: December 29, 2008
    Date of Patent: February 3, 2015
    Assignee: Whirlpool S.A.
    Inventors: Dietmar Erich Bernhard Lilie, Paulo Sergio Dainez, Nerian Fernando Ferreira, Marcelo Knies
  • Patent number: 8784069
    Abstract: A method of detecting impact or collision between a cylinder (2) and piston (1) driven by a linear motor of a gas compressor includes the steps of: i) obtainment of a reference signal (Sr) associated to an electrical output of the linear motor before the piston attains the upper dead center; ii) obtainment of a detection signal (Sd) associated to the electrical output of the linear motor after the piston attains the upper dead center; iii) comparison between the reference signal (Sr) and the detection signal (Sd); and iv) record of occurrence of impact when the result of comparison of step iii indicates that the detection signal (Sd) presents a variation deriving from impact between the cylinder and the piston, considering a pre-established tolerance. Also disclosed is an electronic detector device , a gas compressor (100) and a control system.
    Type: Grant
    Filed: November 24, 2008
    Date of Patent: July 22, 2014
    Assignee: Whirlpool S.A.
    Inventors: Dietmar Erich Bernhard Lilie, Nerian Fernando Ferreira, Marcelo Knies, Paulo Sergio Dainez
  • Patent number: 8297938
    Abstract: The present invention relates to a system and method of controlling a linear compressor (10), which is capable of fine-tuning the compressor when necessary, throughout the operating period of the compressor, so that said compressor operates at maximum capacity, wherein the piston (1) achieves a maximum displacement amplitude, closely approaching the cylinder head (2) without colliding with it. The system and the method according to the invention are also intended to control the operation of the linear compressor throughout its operating period, also seeking to maximize its performance and to reduce or optimize its power consumption. According to the present invention, the fine-tuning and control of the operation of the linear compressor are carried out by means of the combination of a technique for controlling a compressor without a sensor, and a technique for controlling the compressor with the aid of a sensor.
    Type: Grant
    Filed: February 20, 2009
    Date of Patent: October 30, 2012
    Assignee: Whirlpool S.A.
    Inventors: Paulo Sergio Dainez, Dietmar Erich Bernhard Lilie, Nerian Fernando Ferreira, Marcelo Knies
  • Publication number: 20110103973
    Abstract: The present invention relates to a system and method of controlling a linear compressor (10), which is capable of fine-tuning the compressor when necessary, throughout the operating period of the compressor, so that said compressor operates at maximum capacity, wherein the piston (1) achieves a maximum displacement amplitude, closely approaching the cylinder head (2) without colliding with it. The system and the method according to the invention are also intended to control the operation of the linear compressor throughout its operating period, also seeking to maximize its performance and to reduce or optimize its power consumption. According to the present invention, the fine-tuning and control of the operation of the linear compressor are carried out by means of the combination of a technique for controlling a compressor without a sensor, and a technique for controlling the compressor with the aid of a sensor.
    Type: Application
    Filed: February 20, 2009
    Publication date: May 5, 2011
    Inventors: Paulo Sergio Dainez, Dietmar Erich Bernhard Lilie, Nerian Fernando Ferreira, Marcelo Knies
  • Publication number: 20110058960
    Abstract: A method of detecting the occurrence of impact or collision between a cylinder (2) and piston (1) driven by a linear motor of a gas compressor includes the steps of i) obtainment of a reference signal (Sr) associated to an electrical output of the linear motor before the piston attains the upper dead center; ii) obtainment of a detection signal (Sd) associated to said electrical output of the linear motor after the piston attains the upper dead center; iii) comparison between the reference signal (Sr) and the detection signal (Sd); and iv) record of occurrence of impact when the result of comparison of step iii indicates that the detection signal (Sd) presents a variation deriving from impact between the cylinder (2) and the piston (1), considering a pre-established tolerance. Also disclosed is an electronic detector device capable of executing the methodology described above. A gas compressor (100) and a control system including the above-mentioned detector are also disclosed.
    Type: Application
    Filed: November 24, 2008
    Publication date: March 10, 2011
    Inventors: Dietmar Erich Bernhard Lilie, Nerian Fernando Ferreira, Marcelo Knies, Paulo Sergio Dainez
  • Publication number: 20110008191
    Abstract: The present invention discloses a piston and cylinder combination driven by linear motor with cylinder position recognition system, comprising a support structure (4) forming an air gap (12); a motor winding (6) generating a variable magnetic flow at least along part of the air gap (12); a cylinder (2) having a head at one of its ends; a piston (1) connected to a magnet (5), the magnet being driven by the magnetic flow of the motor winding (6) to move inside a displacement path including at least partially the air gap (12); the displacement of the magnet making the piston (1) reciprocatingly move inside the cylinder (2); and an inductive sensor (8) disposed at a point of the displacement path of the magnet (5), such that when the piston (1) reaches a position of closest approach to the cylinder head, the inductive sensor detects a variation in the magnetic field resulting from the corresponding position of the magnet, and generates a voltage signal arising from this magnetic field variation.
    Type: Application
    Filed: December 29, 2008
    Publication date: January 13, 2011
    Inventors: Dietmar Erich Bernhard Lilie, Paulo Sergio Dainez, Nerian Fernando Ferreira, Marcelo Knies