FIELD: drilling equipment. SUBSTANCE: downhole motor has turbine sections, braking device with mutually engaged gear rings 4 and flexible shaft 5. Braking device is installed between turbine sections in place where axial loads exerted on shafts of braking device and turbine sections located above braking device are equal to each other. EFFECT: higher efficiency. 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| GEAR BOX INSERT OF BOTTOM HOLE DRILLING ENGINE | 1992 |
|
RU2039184C1 |
| DEVICE FOR BOREHOLE TESTING | 1992 |
|
RU2072042C1 |
| AUTOMATIC DEVICE FOR FEEDING AND ORIENTING ARTICLES | 1991 |
|
RU2015092C1 |
| PLANET TRANSMISSION | 1992 |
|
RU2036351C1 |
| DEVICE FOR CLEANING OF FORMATION BOTTOM HOLE ZONE | 1990 |
|
RU2015445C1 |
| DEVICE FOR GENERATING HYDRAULIC PULSES IN A WELL | 1991 |
|
RU2068951C1 |
| DAMPENING SPINDLE | 0 |
|
SU1792481A3 |
| 0 |
|
SU1784077A3 | |
| SAMPLER FOR FORMATION TESTER | 1992 |
|
RU2042811C1 |
| RADIAL SUPPORT OF DOWNHOLE MOTOR | 0 |
|
SU1794175A3 |
