That is, the camshaft rotates at a half speed of the crankshaft．
举一反三
- In a two-stroke engine that uses a camshaft, each valve is opened _____ for every rotation of the crankshaft; in these engines, the camshaft rotates at the same speed as the crankshaft.In a four-stroke engine, the valves are opened only half as often; thus, _____ of the crankshaft occur for each rotation of the camshaft. A: once ... two full rotations B: twice ...two full rotations C: once ... one full rotation D: twice ... one full rotation
- What is the speed of the crankshaft in a four-stroke/cycle engine when the camshaft is turning at 750 rpm?（）
- In a four-stroke engines the camshaft rotates at _____.
- The camshaft is drived by( ) A: crankshaft B: flywheel C: clutch D: piston
- The _________ is called the "backbone" of the engine. A: camshaft B: crankshaft C: bearing D: cylinder