Automatic cleaned drain piping system on crosshead type two-stroke engines. The invention is having a slow rotating centreless flexible spiral auger fixed mounted in the piping system.

Automatic cleaned drain piping system on crosshead type two-stroke engines. The invention is having a slow rotating centreless flexible spiral auger fixed mounted in the piping system. The purpose of the invention is to constant avoiding build-up of deposit inside the drain pipes during normal operation. My invention will prevent partly or full blockage of the drain piping. The invention will help to trouble free, reliable and safe continued operation of two-stroke crosshead type engines. The invention will give dramatic savings in man-hours, cleaning chemicals and materials used during manual pipe cleaning. The invention is suitable for mounting during construction of new engines as well as for retrofit. The purpose of the very slow rotating auger is solely to keep heavy, solid and slow flowing particles moving along with the freely flowing oil, thus avoiding deposit building up inside the pipe. The slow rotation speed of the auger inside the pipe creates a scraping action on the lower part of the pipe inner wall, thereby keeping heavy, solid and slow flowing particles in motion.

A belt tensioning apparatus for use in tensioning a belt driven drive system having a motor and belt driven member. The arrangement provides a mounting member with a belt tensioning member operatively connected thereto for applying adjustable tension to a belt when positioned about the motor and belt driven member. An actuator connected to the belt tensioning member allows for movement of the belt tensioning member. A tension operating zone member operable with the actuator is used to alert a user when belt tension is optimal, requires adjustment or is prohibitive.