Всесоюзный Научно-Исследовательский Институт Буровой Техники
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Всесоюзный Научно-Исследовательский Институт Буровой ТехникиfiledCriticalВсесоюзный Научно-Исследовательский Институт Буровой Техники
Priority to SU4437462/29ApriorityCriticalpatent/SU1651612A1/en
Application grantedgrantedCritical
Publication of SU1651612A1publicationCriticalpatent/SU1651612A1/en
FIELD: mining industry, drilling equipment. SUBSTANCE: turbine of turbodrill has rings 1 of stator 2 and rotor 3 with setting angle of blades 4 and 5 amounting to 10-25 deg and average profile line across inlet and outlet sections 6 and 7 is inclined in opposite direction relative to axis of rings. Interblade conduits 8 and 9 of rotor 3 and stator narrow radially and angle of attack 4 of rings 1 amounts to 5-25 deg. EFFECT: increased functional efficiency in zone of rotational speed close to braking one. 2 dwg
SU4437462/29A1988-04-071988-04-07Turbine of turbodrill
SU1651612A1
(en)