US 6,206,655 B1Granted

Electrically-operated sealed compressor

AssigneeMatsushita Refrigeration Company

InventorsYasuhiko Tanaka, Ichiro Kita, Ikutomo Umeoka

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Abstract

An electrically-operated sealed compressor includes a cylinder, a cylinder head mounted on the cylinder and having a suction chamber and first and second discharge chambers, a piston accommodated in the cylinder, and a valve mechanism. The valve mechanism includes a suction muffler and a valve plate having at least one suction port, first and second discharge ports, and first and second pass holes. The first discharge port and the first pass hole communicate with the first discharge chamber, while the second discharge port and the second pass hole communicate with the second discharge chamber. The valve mechanism also includes first and second discharge valves mounted on the valve plate and accommodated in the first and second discharge chambers, respectively, a suction reed having a reed valve for selectively opening and closing the suction port, a discharge gasket for sealing the valve plate and the cylinder head, and a discharge muffler. The first and second discharge chambers are separated from each other by the discharge gasket to form respective independent spaces, while the first and second pass holes communicate with the discharge muffler.

Claims12

Dependent claims

An electrically-operated sealed compressor comprising:

a cylinder;
a cylinder head mounted on said cylinder and having a suction chamber, a first discharge chamber, and a second discharge chamber;
a piston accommodated in said cylinder;
and
a valve mechanism including:
a valve plate having at least one suction port confronting said suction chamber of said cylinder head, a first discharge port confronting said first discharge chamber of said cylinder head, and a second discharge port confronting said second discharge chamber of said cylinder head;
a first discharge valve mounted on said valve plate and accommodated in said first discharge chamber and operable to selectively open and lose said first discharge port;
a second discharge valve mounted on said valve plate and accommodated in said second discharge chamber and operable to selectively open and close said second discharge port, said first discharge valve and said second discharge valve being connected at a valve end so as to have an integral construction, said valve end being secured to said valve plate so as to secure said first discharge valve and said second discharge valve to said valve plate, said first discharge valve and said second discharge valve having different lengths as measured from said valve end;
and
a suction reed having a reed valve confronting said at least one suction port for selectively opening and closing said at least one suction port.

7 more elements

An electrically-operated sealed compressor comprising:

a cylinder;
a cylinder head mounted on said cylinder and having a suction chamber, a first discharge chamber, and a second discharge chamber;
a piston accommodated in said cylinder;
and
a valve mechanism including:
a valve plate having at least one suction port confronting said suction chamber of said cylinder head, a first discharge port confronting said first discharge chamber of said cylinder head, and a second discharge port confronting said second discharge chamber of said cylinder head;
a first discharge valve mounted on said valve plate and accommodated in said first discharge chamber and operable to selectively open and close said first discharge port;
a second discharge valve mounted on said valve plate and accommodated in said second discharge chamber and operable to selectively open and close said second discharge port, said first discharge valve and said second discharge valve being connected at a valve end so as to have an integral construction, said valve end being secured to said valve plate so as to secure said first discharge valve and said second discharge valve to said valve plate, said first discharge valve and said second discharge valve having different widths;
and
a suction reed having a reed valve confronting said at least one suction port for selectively opening and closing said at least one suction port.

7 more elements

Dependencies are inferred from the claim text.

Facts

Application: 09/395,189Filed 14 Sep 1999 · division
Priority: JP 7-25272029 Sep 1995
Granted: 27 Mar 2001
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

F04B 39/0066
With a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes: using sidebranch resonators, e.g. Helmholtz resonators
F04B 39/0055
Pulsation and noise damping means: with a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes
F04B 39/0072
With a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes: characterised by assembly or mounting
F04B 39/1073
Adaptations or arrangements of distribution members: the members being reed valves