The crankshaft is of the semi built type, with the journal () the forged or cast steel crank throws.
A、being shrunk into
B、to be shrunk into
C、to be shrunk with
D、shrinking into
A、being shrunk into
B、to be shrunk into
C、to be shrunk with
D、shrinking into
A、two strokes of the piston B、four strokes of the piston C、one revolution of the crankshaft D、four revolutions of the crankshaft
A、A.twice the crankshaft speed B、B.half the crankshaft speed C、C.the same speed as that of the crankshaft D、D.a speed independent of that of the crankshaft
A、laying a straight edge across the crank webs at the crankpin and measuring the distance to the crankpin in two places B、measuring the crank drop on either side of each crank throw while the crankshaft is slowly rotated through one revolution C、rotating the crankshaft through one revolution, pausing each 90oof rotation to measure bearing clearances, top and bottom D、taking micrometer reading between the crank cheeks opposite the crankpin every 90°of crank angle rotation
A、length of the crankshaft B、volume of the clearance space C、weight of piston D、length of the stroke
A、higher working temperature of piston and cylinder B、the use of scavenge ports C、fewer power strokes per revolution of the crankshaft D、part of the fuel is burned as the piston is moving away from top dead center
A、bedplate, connecting rods B、crankshaft, the connecting rods C、frames, crossheads D、crankshaft, the cylinder