Multi stage scroll vacuum pumps and related scroll devices

A multi-stage compressor and motor for producing a high pressure gas, comprising:

• a housing,
• said housing having first and second end caps provided thereon, at least one driven scroll plate provided therein,
• at least one spinning drive scroll plate provided within said housing, and intermeshing its scrolls with the scrolls on the at least one driven scroll plate,
• said housing first end cap and said at least one driven scroll plate having central passages provided therethrough for entrance of gas therein to be compressed,
• a bellows intermating between the at least one driven scroll plate and the at least one spinning drive scroll plate and surrounding said both of the at least one driven scroll plate and the at least one spinning drive scroll plate to contain the processed gas therein,
• said second end cap having an integral extension thereon to mount said motor, a back motor bracket securing with said integral extension to secure said motor intermediate thereof,
• said motor when operative turning a motor shaft, said motor shaft extending centrally into said at least one spinning drive scroll plate, said motor shaft having a central channel provided therethrough, such that both of the at least one driven scroll plate and the at least one spinning drive scroll plate provide for entrance of gas at the periphery of both of the at least one driven scroll plate and the at least one spinning drive scroll plate and induce the generation of pressurized gas centrally of both of the at least one driven scroll plate and the at least one spinning drive scroll plate and transmits said pressurized gas through said motor shaft channel for use for operation of said pressurized gas for functioning of other instrumentation.

A multi-stage vacuum pump and motor for producing a vacuum, comprising:

• a first housing, first and second end caps for said first housing,
• a driven scroll plate provided within said first housing, a spinning drive scroll plate provided within said first housing and intermeshing its scrolls with the scrolls on the driven scroll plate,
• said first housing first end cap and said driven scroll plate having central passages provided therethrough for entrance of gas therein to be evacuated,
• a bellows interconnecting between said driven scroll plate and the spinning drive scroll plate and surrounding both of the at least one driven scroll plate and the at least one spinning drive scroll plate to contain the processed gas therein,
• said second end cap having an integral extension thereon to mount said motor, a back motor bracket securing with said second end cap extension to secure said motor at one end thereof,
• a second housing, said second housing having first and second end caps provided thereon,
• a further driven scroll plate provided within said second housing, and another spinning drive scroll plate provided within said second housing and intermeshing its scrolls with the scrolls on the further driven scroll plate,
• said second housing first end cap and said further driven scroll plate having central passages provided therethrough for entrance of gas therein to be further evacuated,
• a second bellows interconnecting between the further driven scroll plate and the another spinning drive scroll plate of said second housing and surrounding both of the further driven scroll plate and the another spinning drive scroll plate to contain the processed gas therein,
• said first end cap of the second housing having a second integral extension thereon to mount the other end of said motor, a second back motor bracket securing with said second integral extension to secure said motor between said first and second housings thereof,
• said motor when operative turning a motor shaft, said motor shaft extending centrally between said spinning drive scroll plates of the first and said another spinning drive scroll of second housings,
• said motor shaft having a central channel provided therethrough to pass the evacuated gas from the first housing to the second housing and said another spinning drive scroll plate, so that the entrance of gas at the periphery of both of the further driven scroll plate and the another spinning drive scroll plate induces the generation of a vacuum also within both of the further driven scroll plate and the another spinning drive scroll plate of the second housing and transmits the vacuum pressure from said first housing, through said motor shaft channel, for further processing by both of the further driven scroll plate and the another spinning drive scroll plate in the second housing, and for discharge of the vacuumed gas for functioning of other instrumentation through the usage of this multi-stage vacuum pump.