IP Library Granted Patent US 9,534,591
Granted Patent B2
US 9,534,591 · App. 14/241,721 · Granted Jan 3, 2017

Linear compressor based on resonant oscillating mechanism

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Quick Facts
Patent No.
US 9,534,591
App. No.
14/241,721
Granted
Jan 3, 2017
Kind
B2
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 (16)

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 flexible rod ( 5 ) formed in a single unitary piece, and at least one cylinder ( 6 ), wherein all these elements are disposed within a housing ( 7 );

the movable portion ( 32 ) of the linear motor ( 3 ) is fixed at one of the ends of the resonant spring ( 2 ) through a first coupling assembly;

the flexible rod ( 5 ) is fixed at the opposite end of the resonant 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 arranged within a same end of the housing ( 7 );

the flexible rod ( 5 ) is disposed within and passes through the resonant spring ( 2 ); and

the piston ( 4 ) and the cylinder ( 6 ) are capable of acting at a distal end to a second coupling end between the flexible rod ( 5 ) to the resonant spring ( 2 ).

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

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

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

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

6. Linear compressor according to claim 5 , CHARACTERIZED in that the sensing device is basically comprised of at least one fixed component ( 8 A), at least one movable component ( 8 B) and at least one connecting body ( 9 ).

7. Linear compressor according to claim 6 , CHARACTERIZED in that at least one of the fixed component ( 8 A) and the movable component ( 8 B) is subject to electromagnetic excitation proportional to the distance between them.

8. Linear compressor according to claim 6 , CHARACTERIZED in that the movable component ( 8 B) is fixed at the flexible rod ( 5 ) via the at least one connecting body ( 9 ); the at least one connecting body ( 9 ) connecting an end ( 52 ) of the flexible rod ( 5 ) to the movable component ( 8 B).

9. Linear compressor according to any one of claims 6 or 8 , CHARACTERIZED in that the sensing device is sized to generate a top peak signal at the closest approach between the fixed component ( 8 A) and the movable component ( 8 B).

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 27, 2019
From: WHIRLPOOL S.A.
To: EMBRACO - INDÚSTRIA DE COMPRESSORES E SOLUÇÕES EM REFRIGERAÇÃO LTDA.
Reel/Frame 048453/0336 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 27, 2014
From: ROETTGER, WILFRED; VOLLRATH, INGWALD; COUTO, PAULO ROGERIO CARRARA; TAKEMORI, CELSO KENZO
To: WHIRLPOOL S.A.
Reel/Frame 033200/0785 →