- THE TRANSVERSE THRUST DUE TO THE OSCILLATION OF THE CONNECTING-ROD IS TAKEN UP BY THE CROSSHEAD ASSEMBLY AND ITS GUIDE IN THE CROSSHEAD TYPE OF ENGINES WHEREAS IN THE TRUNK TYPE PISTON TYPE OF ENGINES THE TRANSVERSE THRUST IS TAKEN UP BY THE PISTON SKIRT.
- THE NATURE OF THE BEARING ASSEMBLY AT THE UPPER PART OF THE CON-ROD. FOR CROSSHEAD ENGINES, THE UPPER PART OF THE CON-ROD IS CONNECTED TO A CROSSHEAD ASSEMBLY CONSISTING OF CROSSHEAD BLOCK, PINS AND SLIPPERS. THIS CROSSHEAD ASSEMBLY IS IN TURN ATTACHED TO THE LOWER PART OF THE PISTON-ROD. FOR TRUNK PISTON TYPE ENGINES, THE UPPER PART OF THE CON-ROD IS CONNECTED DIRECTLY TO THE PISTON VIA THE GUDGEON BEARING ASSEMBLY.
- CROSSHEAD ENGINE HAVE A PISTON ROD WHILE TRUNK PISTON ENGINE DONOT.
- CROSSHEAD ENGINES HAVE A DIAPHRAGM THAT SEPARATES THE CYLINDER SPACE FROM THE CRANKCASE WHILE TRUNK TYPE DONOT HAVE.
- CROSSHEAD ENGINE HAVE DIFFERENT CYLINDER LUBRICATION SYSTEM WITH DIFFERENT LUB OIL THAN CRANKCASE OIL WHILE TRUNK TYPE HAVE SAME LUB OIL AS THAT OF CRANKCASE.
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