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US4089625A
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Rotary gas machine
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GB1493295A
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Rotary piston machines
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DE2553421A1
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Rotary piston unit with tubular rotors - has circumferentially spaced recesses which mesh with rotor teeth
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DE2544082A1
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Cage and meshing cam rotary piston machines - are used as compressors with charge cooling included in cycle
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DE2532751A1
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Rotary piston compressor cage and comb rotors - have recess and tooth engagement with circumferential overlap
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DE2531385A1
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Rotary piston compressor with two meshing rotors - embodying special cooling arrangements to even out temperatures
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DE2531414A1
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Axial clearance adjustment of rotors in casings - partic. for rotary piston engines with meshing rotors
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DE2531415A1
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Rotary piston compressor with two meshing rotors - using special sealing and wear reducing materials
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DE2525335A1
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Spiral form rotary IC engine - has rotors with internal and external helical teeth meshing with each other
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