No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
basic composition of the raw material is composed of 16-28 wt% of NBR, serving as the rubber; 4-8 wt% of an aramid fibre, serving as the reinforcing fibre; 10-20 wt% of a needlelike dolomite, serving as the reinforcing fibre; 8-20 wt% of silica particles, serving as the filler; and the balance, an i
A pressure balance and temperature compensation chamber for the shaft seal on a submersible electric motor is described. A chamber between two shaft seals has a flexible element for temperature compensation. A non-return valve allows fluid to be expelled from the chamber but not enter. A compensatin
This patent describes a tandem radial shaft seal that is specifically designed for automotive cooling systems. A partial vacuum may be applied to the system for leak testing and then filling. This can cause a conventional lip seal to vent air inwards. This seal has a support ring on the atmospheric
This patent describes a seal for oilfield equipment joints that is designed to permit the use of plastic sealing materials, while overcoming the inherent limitations associated with plastics. It is particularly intended to improve the performance of the seals with respect to their capabilities with