How many degrees of crankshaft rotation are there between cylinder firings on an inline four-cylinder engine, an inline six-cylinder engine, and a V-8 engine?
Identify the crank rotation degrees between cylinder firings in the given engines.
Explanation of Solution
Inline four cylinder engine:
In a 4-cylinder engine where all the cylinders are mounted in a single line, the piston moves in pairs. The pistons of cylinders 1 and 4 move together and the pistons of cylinders 2 and 3 form a pair. With this arrangement, the engine will fire each cylinder after
Inline six cylinder engine:
An inline six cylinder engine is a perfectly balanced engine. The crankshafts ride on 4 or 7 main bearings and use six crank throws in three planes at 120 degrees apart. With this arrangement, the engine will fire each cylinder after
V-8 engine:
The V-8 engine crankshaft has two planes and one throw every 90 degrees resulting in a total of four throws. The engine operates smoothly with firing at each
Want to see more full solutions like this?
Chapter 35 Solutions
NATEF Correlated Task Sheets for Automotive Technology
Additional Engineering Textbook Solutions
DESIGN OF MACHINERY
Heat and Mass Transfer: Fundamentals and Applications
Mechanics of Materials
Heating Ventilating and Air Conditioning: Analysis and Design
Thermodynamics: An Engineering Approach
Degarmo's Materials And Processes In Manufacturing
- 2. A diesel engine with a stroke of 4.72 inches and a displacement of 5.9 liters develops a peak torque of 600 lbft at 1600 rpm. What is the average piston speed in feet per minute at peak torque?arrow_forward4-stroke diesel engine, when running at 2000 rpm has an injection duration of 1.5 ms. What is the corresponding duration of the crank angle in degrees?arrow_forwardIn most of internal combustion engines, crankshaft bearing is Select the correct answer below: A. Ball bearings B. Hydrodynamic journal bearing C. Roller Bearings D. Hydrostatic journal bearingarrow_forward
- Hi can you please help me with this question and its subparts? Please draw a schematic of the piston-cylinder device to start as well. I would like to understand visually how this works and then, the Carnot cycle as that is a brand new concept.arrow_forwardDetermine the volumetric displacement of a V6 four stroke engine with a bore and stroke of 86x 86 mm and operates at 4200 rpm at full load.arrow_forwardBriefly explain the necessity of counterweights located on the crankshaft when the engine is naturally balanced with respect to mass forces.arrow_forward
- What is the main difference between a crankshaft and a cam shaftarrow_forwardWhat provisions are usually included on tractor engines to aid in the correct timing of the camshaft?arrow_forwardA six cylinder engine has a 1 5 3 6 2 4 firing order. Technician A says that after cylinder number 1 begins its intake stroke, the crankshaft will have to travel 240° before cylinder number 3 begins its intake stroke. Technician B says that when cylinders number 3 and 4 are at TDC, cylinders number 5 and 2 are at BDC. Who is right? And explain why. a. Technician A only b. Technician B only c. Both A and B d. Neither A nor Barrow_forward
- Design a five-liter car engine that operates on a four-stroke cycle. Decide what the design speed will be, and then give the number of cylinders, bore, stroke, piston rod length, average piston speed, imep, brake torque, fuel used, AF, and brake power, all at design speed. All parameter values should be within typical, reasonable values and should be consistent with the other values. State what assumptions you make (e.g., mechanical efficiency, volumetric efficiency, etc.)arrow_forward1.) The valve timing is affected by (1) timing of the crankshaft and camshaft gears, (2) shape of the cam, and (3) tappet or rocker arm clearance. Simply discuss how each of the mentioned factors affects the timing of the valve. 2.) What is fuel combustion? How does it affect the performance of an engine? 3.) What is the power train of the wheel drive tractor? Discuss how power is transmitted from the engine to the wheels of the tractor.arrow_forward1. A 4-stroke, single-cylinder gasoline engine has 85-mm bore and 85-mm stroke. What is the piston displacement of the engine? If the engine has a 10-compression ratio, what is its clearance volume? What would be the total volume of the cylinder? 2. A four-stroke gasoline engine is running at a speed of 3,000 rpm. The piston diameter is 4 inches while the stroke is 4.5 inches. What is the speed of the piston? 3. A four-cylinder gas engine has 20-cm cylinder diameter and 40-cm stroke. The cylinders run at 150 rpm speed. The engine is a four-stroke cycle with 8 kg/cm² mean effective pressure. What is the area in cm2 and length of stroke of the engine piston in meter? Also, compute the power stroke per min per cylinder and the total power stroke of the 4 cylinders. Compute the indicated horsepower and the brake horsepower of the engine. And, what is the stroke-to-bore ratio of the engine? 4. Compute the specific fuel consumption of the 10 hp engine that drive a power tiller if it…arrow_forward
- Elements Of ElectromagneticsMechanical EngineeringISBN:9780190698614Author:Sadiku, Matthew N. O.Publisher:Oxford University PressMechanics of Materials (10th Edition)Mechanical EngineeringISBN:9780134319650Author:Russell C. HibbelerPublisher:PEARSONThermodynamics: An Engineering ApproachMechanical EngineeringISBN:9781259822674Author:Yunus A. Cengel Dr., Michael A. BolesPublisher:McGraw-Hill Education
- Control Systems EngineeringMechanical EngineeringISBN:9781118170519Author:Norman S. NisePublisher:WILEYMechanics of Materials (MindTap Course List)Mechanical EngineeringISBN:9781337093347Author:Barry J. Goodno, James M. GerePublisher:Cengage LearningEngineering Mechanics: StaticsMechanical EngineeringISBN:9781118807330Author:James L. Meriam, L. G. Kraige, J. N. BoltonPublisher:WILEY