Helical gear pump

Details Helical gear pump Helical gear pump

F - Mech Eng,Light,Heat,Weapons

04

C

F04C 2/107 (2006.01) E21B 43/00 (2006.01)

Patent

CA 2221487

Gear pump, or Moineau pump, comprising two helical gears one inside the other, the internal helical gear, which is rotary (the rotor) having one tooth fewer than the external helical gear, which is stationary (the stator), characterized in that the rotor and the stator are made of respective materials which have respective coefficients of thermal expansion which lead to respective expansions of the rotor and of the stator which are such that an approximately constant clearance is maintained between the rotor and the stator over a range of ambient temperatures spanning between about 15°C and about 300°C.

Affiliated with

Also associated with

Rating

Helical gear pump does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Helical gear pump, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Helical gear pump will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1576382