Recirculating rotary gas compressor

Patent · 01 January 1992

OSTI ID:868173

Weinbrecht, John F ^[1]

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1. 601 Oakwood Loop, NE., Albuquerque, NM 87123

A positive displacement, recirculating Roots-type rotary gas compressor which operates on the basis of flow work compression. The compressor includes a pair of large diameter recirculation conduits (24 and 26) which return compressed discharge gas to the compressor housing (14), where it is mixed with low pressure inlet gas, thereby minimizing adiabatic heating of the gas. The compressor includes a pair of involutely lobed impellers (10 and 12) and an associated port configuration which together result in uninterrupted flow of recirculation gas. The large diameter recirculation conduits equalize gas flow velocities within the compressor and minimize gas flow losses. The compressor is particularly suited to applications requiring sustained operation at higher gas compression ratios than have previously been feasible with rotary pumps, and is particularly applicable to refrigeration or other applications requiring condensation of a vapor.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM
• DOE Contract Number: W-7405-ENG-36
• Assignee: Weinbrecht, John F. (601 Oakwood Loop, NE., Albuquerque, NM 87123)
• Patent Number(s): US 5090879
• OSTI ID: 868173
• Country of Publication: United States
• Language: English

Related Subjects

/418/
10
12
14
24
26
adiabatic
applicable
applications
applications requiring
associated
basis
circulation conduit
compressed
compression
compression ratio
compression ratios
compressor
compressor housing
condensation
conduits
configuration
diameter
discharge
discharge gas
displacement
equalize
feasible
flow
flow velocities
gas
gas compressor
gas flow
heating
housing
impellers
inlet
inlet gas
involutely
lobed
losses
minimize
minimizing
mixed
operates
operation
pair
particularly
particularly applicable
particularly suited
positive
positive displacement
pressure
previously
pumps
ratios
recirculating
recirculating rotary
recirculation
recirculation conduits
refrigeration
requiring
result
return
roots-type
rotary
rotary gas
rotary pump
suited
sustained
type rotary
uninterrupted
vapor
velocities