Counter rotating, multi turbine flow measuring system

Details Counter rotating, multi turbine flow measuring system Counter rotating, multi turbine flow measuring system

1983-11-01

1985-08-13

Ruehl, Charles A.

Measuring and testing

Volume or rate of flow

Using turbine

7386102, G01F 112, G01F 190

Patent

active

045342261

ABSTRACT:
A volumetric flow measuring system includes two counter-rotating turbines axially displaced along the flow path. Because the turbines rotate in opposite directions, the net change of the sum of the main and sensor turbine signals due to non-axial or "swirl" components in the flow is zero thus cancelling their effects. In addition, the sensor turbine is operated at a lower speed than the main turbine so that main turbine speed errors due to "slip" (i.e. reduction of turbine speed from theoretical due to restraining torques) are counteracted by an increase in sensor speed. The only error then is the sensor turbine "slip" error which is smaller than the main turbine "slip" error by a factor equal to the ratio of the main and sensor turbine speeds.

REFERENCES:
patent: 3635084 (1972-01-01), Lamphere et al.
patent: 3710622 (1973-01-01), Hammond et al.
patent: 3735637 (1973-05-01), Penet
patent: 3776034 (1973-12-01), Kolb
patent: 3934473 (1976-01-01), Griffo

Affiliated with

Also associated with

Rating

Counter rotating, multi turbine flow measuring system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Counter rotating, multi turbine flow measuring system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Counter rotating, multi turbine flow measuring system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2311904