LINEAR COMPRESSOR BASED ON RESONANT OSCILLATING MECHANISM

• US 20140301874A1
• Filed: 08/06/2012
• Published: 10/09/2014
• Est. Priority Date: 08/31/2011
• Status: Active Grant

• Current Assignee: Embraco Indústria de Compressores e Soluções em Refrigeração LTDA
• Original Assignee: Whirlpool SA (Whirlpool Corporation)
• Inventors: Roettger, Wilfred, Vollrath, Ingwald, Takemori, Celso Kenzo, Couto, Paulo Rogrio Carrara
• Granted Patent: US 9,534,591 B2
• Time in Patent Office: Days
• US Class Current: 417/437
• CPC Class Codes: F04B 17/04 using solenoids
• CPC Class Codes: F04B 2203/04 of linear electric motors
• CPC Class Codes: F04B 2203/09 of linear hydraulic motors
• CPC Class Codes: F04B 35/045 using solenoids
• CPC Class Codes: F04B 39/127 Mounting of a cylinder block in a casing
• CPC Class Codes: F04B 53/00 Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00

Abstract

The present invention refers to a linear compressor based on resonant oscillating mechanism, which is comprised by at least one resonant spring (2) at least one linear motor (3) composed of at least one fixed portion (31 ) and at least one movable portion (32), at least one piston (4) operatively associated with at least one rod (5) and at least one cylinder (6), all these elements being disposed within a housing (7), and the movable portion (32) of the linear motor (3) is physically associated with one end of the resonance spring (2) through a first coupling assembly and the rod (5) is physically associated with the opposite end of the resonance spring (2) through a second coupling assembly. The linear motor (3), the cylinder (6) and the piston (4) are physically arranged within a same end of the housing (7). The rod (5) is disposed within the resonant spring (2). The piston-cylinder assembly (4, 6) is capable of acting at the distal end to the coupling end between the rod (5) to the resonant spring (2).

Claims

1. Linear compressor based on oscillating resonant mechanism, comprising:

at least one resonant spring (2), at least one linear motor (3) composed of at least one fixed portion (31) and at least one movable portion (32), at least one piston (4) operatively associated with at least a rod (5) and at least one cylinder (6), wherein all these elements are disposed within a housing (7);

the movable portion (32), the linear motor (3) being physically associated to one of the ends of the resonance spring (2) through a first coupling assembly;

the rod (5) being physically associated with the opposite end of the resonance spring (2) via a second coupling assembly;

the linear compressor (1) being CHARACTERIZED in that;

the linear motor (3), the cylinder (6) and the piston (4) are physically arranged within a same end of the housing (7);

the rod (5) is disposed within the resonant spring (2) and

the piston-cylinder (4, 6) is capable of acting at the distal end to the coupling end between the rod (5) to the resonant spring (2).

2. Linear compressor according to claim 1, CHARACTERIZED by the fact that the rod (5) passes through the resonance spring (2).

3. Linear compressor according to claim 1, CHARACTERIZED in that the movable portion (32) of the linear motor (3) and piston (4) oscillate in mutually opposite directions.

4. Linear compressor according to claim 1, CHARACTERIZED in that the piston-cylinder (4, 6) is arranged within the perimeter defined by the linear motor (3).

5. Linear compressor according to claim 4, CHARACTERIZED in that the piston-cylinder (4, 6) is arranged within the perimeter defined by the movable portion (32) of the linear motor (3).

6. Linear compressor according to claim 1, CHARACTERIZED in that it further comprises at least one sensing device cooperatively associated with the flexible rod (5).

7. Linear compressor according to claim 6, CHARACTERIZED in that the sensing device is basically comprised of at least one fixed component (8A), at least one movable component (8B) and at least one connecting body (9).

8. Linear compressor according to claim 7, CHARACTERIZED in that at least one of the components (8A) and (8B) is subject to electromagnetic excitation proportional to the distance between them.

9. Linear compressor according to claim 6 or 7, CHARACTERIZED in that the movable component (8B) is physically associated with the flexible rod (5) via a connecting body (9);

the connecting body (9) connecting the end (52) of the flexible rod (5) to the movable component (8B).

10. Linear compressor according to any one of claims 6 a 9, CHARACTERIZED in that the sensing device is sized to generate a top peak superior of measurable signal when the closest approach between the components (8A) and (8B).