| 摘要 |
FIELD: power engineering. ^ SUBSTANCE: control valve has steam box. The cover of the steam box is provided with axle box and rod which passes through the axle box and is connected with the valve cap. The valve cap is provided with the skirt. The cover has cylindrical shield which projects inward and is mounted in the zone of valve cap. The shield embraces the sleeve of the axle box and skirt of the valve cap. The sleeve of the axle box is tightly fitted to the cover shield. Outside the shield the axle box is fitted to the cover. ^ EFFECT: enhanced reliability and serviceability. ^ 1 dwg |
