Linear Compressor
OwnerIan Campbell McGillinventor
Life of this patent
Estimating the term…
Abstract
A linear compressor (1) includes a cylinder (21) with a piston (22) connected through a main spring (19) and a planar spring (20). One or more flat blocks of permanent magnet material (17) with large faces of the blocks facing a stator (15) and defining armature poles are secured to a connecting rod (30). A lateral support (52) acts between the cylind (21) and the connecting rod (30) at a location midway between the permanent magnet material and the piston (22) allowing axial movement of the connecting rod (30) but transferring side loads to the cylinder (21).
Claims15
A linear compressor comprising:
- a cylinder part including a cylinder bore,
- a piston disposed in said bore and slidable therein,
- a main spring connecting directly or indirectly said cylinder part to said piston,
- a connecting member connecting between said main spring and said piston,
- a stator having an air gap, said connecting member passing through said air gap, and
- one or more substantially flat blocks of permanent magnet material secured to said connecting member with the large faces of said blocks facing the stator, said permanent magnet material magnetised to define at least one armature pole;
- and wherein said main spring comprises a combination of a plurality of individual spring elements acting in parallel.
A linear compressor comprising:
- a cylinder part including a cylinder bore,
- a piston disposed in said bore and slidable therein,
- a main spring connecting directly or indirectly said cylinder part to said piston,
- a connecting member connecting between said main spring and said piston,
- a stator having an air gap, said connecting member passing through said air gap, and
- at least one armature pole located along said connecting member,
- wherein said connecting member is supported only by said piston at one end and by said main spring away from said one end, and said main spring comprises a combination of individual spring elements acting in parallel.
A linear compressor comprising:
- a cylinder part including a cylinder bore,
- a piston disposed in said bore and slidable therein,
- a main spring connecting directly or indirectly said cylinder part to said piston, and
- a connecting member connecting between said main spring and said piston, with a compliant element in said connecting member transmitting side and axial loads but allowing rotation about axes transverse to the axis of reciprocation of said piston in said bore;
- wherein said main spring comprises a combination of a plurality of individual spring elements acting in parallel.
A linear compressor comprising:
- a cylinder part including a cylinder bore,
- a piston disposed in said bore and slidable therein,
- a main spring connecting directly or indirectly said cylinder part to said piston,
- a connecting member connecting between said main spring and said piston and connecting said main spring to said piston,
- a stator having an air gap, said connecting member passing through said air gap,
- one or more substantially flat blocks of permanent magnet material secured to said connecting member with the large faces of said blocks facing the stator, said permanent magnet material magnetised to define at least one armature pole, and
- a lateral support acting between said cylinder part and said connecting member, at a location intermediate said permanent magnet material and said piston, said lateral support allowing axial movement of said connecting rod, but transferring side loads to said cylinder part.
(canceled)
Dependencies are inferred from the claim text.