Sealed type electrically operated compressor

Claim 1

An electrically operated compressor of a sealed type comprising: a sealed container of a cylindrical shape; a compressor section and an electric motor section contained in said sealed container; said compressor section comprising a stationary scroll member including an end plate secured to an upper end portion of said sealed container, and a spiral wrap disposed in upright position on the end plate, an orbiting scroll member including an end plate and a wrap of essentially the same shape as the end plate and the wrap of the stationary scroll member, and a frame connected to the stationary scroll member in a manner to enclose the orbiting scroll member between the frame and the stationary scroll member; said electric motor section being located below said compressor section and comprising a stator secured to a lower portion of said sealed container, and a rotor secured to a lower portion of a crankshaft journaled by bearing portions of said orbiting scroll member and of said frame of said compressor section; a member for preventing said orbiting scroll member from rotation on its own axis during its orbiting movement, and being mounted between the frame and the orbiting scroll member; an oil sump in a bottom portion of said sealed container of the cylindrical shape to allow oil feeding means formed in a lower portion of said crankshaft to be immersed in oil; a discharge passage extending through the end plate of the stationary scroll member to discharge compressed fluid at a high pressure into an upper space in said sealed container; a suction pipe defining a suction passage extending through said upper space and having two end portions, one of said two end portions extending through the end plate of the stationary scroll member to open in a fluid suction space defined between the stationary scroll member and the orbiting scroll member in meshing engagement with each other and the other end portion axially extending through a wall of said sealed container of cylindrical shape to communicate with an outer equipment on the lower pressure side, said suction pipe being secured to one of the end plate and the wall of the container and connected in non-secured condition to the other of the end plate and the wall of the container; and a gas sealing member disposed between said suction pipe and the other of the end plate of the stationary scroll member and the wall of the container.