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US 7,789,634 B2Granted
Compressor
AssigneeDaikin Industries, Ltd.
InventorsHirofumi Higashi, Masanori Masuda, Katsumi Sakitani
Life of this patent
Estimating the term…
Abstract
A reed valve and a valve retainer for the reed valve are provided at a discharge port of a compression mechanism that compresses fluid. The valve retainer has a polymer actuator at an end part of a valve fixing part for fixing the reed valve. The polymer actuator expands or contracts in length to change a fixed length of the reed valve, thereby changing a rigidity of the reed valve. This attains appropriate control of responsiveness of the reed valve according to the volume.
Claims4
A compressor comprising:
- a compression mechanism configured to compress fluid, the compression mechanism including a discharge port;
- a reed valve;
- and
- a valve retainer for the reed valve coupling the reed valve at the discharge port,
- at least part of the valve retainer being composed of a shape varying member that varies in shape in response to a voltage application so as to change an a rigidity of the reed valve,
- the valve retainer including a valve fixing part for fixing a fixed part of the reed valve and a curved guiding part for restricting a valve part of the reed valve to a lift amount,
- at least part of the valve fixing part forming the shape varying member so as to change a rigidity of the reed valve, and
- the shape varying member of the valve fixing part expanding or contracting in length so as to change a length of the fixed part of the reed valve.
5 more elements
A compressor, comprising:
- a compression mechanism configured to compress fluid, the compression mechanism including a discharge port;
- a reed valve;
- and
- a valve retainer for the reed valve coupling the reed valve at the discharge port,
- only part of the valve retainer being composed of a shape varying member that varies in shape in response to a voltage application so as to change a rigidity of the reed valve,
- the valve retainer including a valve fixing part for fixing a fixed part of the reed valve and a curved guiding part for restricting a valve part of the reed valve to a lift amount,
- at least part of the valve fixing part forming the shape varying member so as to change a rigidity of the reed valve,
- the shape varying member of the valve fixing part expanding or contracting in length so as to change a length of the fixed part of the reed valve.
5 more elements
Dependencies are inferred from the claim text.