. The Locomotive . urse, to prevent imme-diate shut-down should the condenser equipment cease to connection for this relief valve should be between the en-gine and the non-return valve as indicated in the illustration. Not only jet but also surface condensers may give trouble ifthe latter type is so connected that the steam enters the con-denser shell at the bottom. This method of piping is sometimesused when there is no basement under the engine and the con-denser is placed on a level with the engine cylinder. If the con-densate pump stops accidentally, the exhaust pipe will accum
. The Locomotive . urse, to prevent imme-diate shut-down should the condenser equipment cease to connection for this relief valve should be between the en-gine and the non-return valve as indicated in the illustration. Not only jet but also surface condensers may give trouble ifthe latter type is so connected that the steam enters the con-denser shell at the bottom. This method of piping is sometimesused when there is no basement under the engine and the con-denser is placed on a level with the engine cylinder. If the con-densate pump stops accidentally, the exhaust pipe will accumulatewater from the condensing steam and at the time that the engineis being shut down this water may return to the cylinder tocause damage as explained in the foregoing. Still another source from which water may enter an enginecylinder is the receiver on a compound engine. Engines of thistype are sometimes constructed with a valve gear giving a fixed 140 THE LOCOMOTIVE, [January, ^^—5^ Engine- Cylindbr o o ^O^fj. /^^^
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