We Usually Heard Of Diesel Engine Parts,You Know What Does It Means To?And You Know What Is Including in it?And What About The Function For Each Parts?
Now This Acticle Will Introduce One By One For You
1. Flywheel
The Main Function Of The Flywheel Is To Store The Energy Of The Power Stroke, Overcome The Resistance Of The Auxiliary Stroke To Maintain The Uniformity Of The Rotation Of The Crankshaft, And Make The Internal Combustion Engine Work Smoothly. To Do This, It Needs To Be Able To Store a Certain Amount Of Energy And Release It When Needed.
2. Flywheel Housing
The Flywheel Housing Is Installed Between The Engine And The Gearbox, Externally Connected To The Crankcase, Starter, Oil Pan, And Built-In Flywheel Assembly, Which Plays The Role Of Connecting The Body, Protection And Carrier.
3. Flywheel Ring Gear
A Ring Gear Is Pressed On The Outer Edge Of The Flywheel, Which Can Mesh With The Drive Gear Of The Starter, And Transmit The Power Of The Starter To The Connecting Piece Of The Crankshaft. The Main Function Is To Realize The Power Transmission Between The Starter And The Crankshaft, And Provide Inertia For The Engine.
4. Flywheel Bolt
The Function Of The Flywheel Bolt Is To Generate Enough Pre-Tightening Force During Assembly, So That The Friction Torque Generated Between The Flywheel And The Crankshaft Joint Surface When The Engine Is Working Can Transmit Torque.
5. Starter Motor
The Process That The Internal Combustion Engine Transitions From a Static State To An Independent Operation With The Help Of External Force Is Called The Internal Combustion Engine Starting Process, Or Simply Called The Internal Combustion Engine Starting. The Device Required To Complete The Starting Process Is Called The Starting Device. The Starting Devices Of The Engine Mainly Include: Electric Starter, Electromagnetic Meshing Starter, Deceleration Starter, Permanent Magnet Starter, Air Starter, Etc.
6. Oil Pump Assembly
The Oil Pump Is The Power Source Of Oil Pressure And Flow In The Lubrication System. It Guarantees The Oil Pressure And Flow Required For Engine Lubrication. The Structural Forms Of The Oil Pump Are Gear Type, Rotor Type, Vane Type And Plunger Type. Commonly Used Are Gear Type And Rotor Type.
7. Oil Filter
It Is Used To Filter The Metal Wear Debris, Mechanical Impurities And The Oxidation Products Of The Oil Itself In The Oil, Such As Various Organic Acids, Asphaltenes And Carbides, Etc., To Prevent Them From Entering The Friction Surface Of The Parts And Pulling And Scratching The Parts. Intensified Wear And Serious Accidents Such As Preventing The Blockage Of The Lubrication System Channel And Burning Out The Bearing Bush. The Performance Of The Oil Filter Directly Affects The Overhaul Period And Service Life Of The Internal Combustion Engine.
8. Generator/Alternator
Function: Supply Power To Electrical Equipment And Charge The Battery. In Order To Meet The Needs Of Battery Charging, The Output Voltage Of The Vehicle Generator Must Be Direct Current. The Generators Installed On The Internal Combustion Engine Usually Include Parallel-Excited Dc Generators, Silicon Rectifier Generators And Permanent Magnet Alternators. At Present, The Generators Used In Domestic And Foreign Automobiles Are Almost All Silicon Rectifier Alternators. Silicon Rectifier Alternator Is Composed Of Rotor, Stator, Rectifier, End Cover And Fan Impeller. The Two-Phase Alternating Current Generated By The Generator Is Converted Into Direct Current After Three-Phase Bridge Full-Wave Rectification By The Rectifier. The Output Voltage Is Generally 28V.
9. Water Pump Assembly
The Function Of The Water Pump Is To Pressurize The Cooling Water To Ensure That It Circulates In The Cooling System. In The Forced Circulation Cooling System, a Centrifugal Water Pump Is Used To Increase The Pressure Of The Cooling Water To Accelerate The Circulation Of The Water In The Cooling System. Due To The Advantages Of Simple Structure, Small Size, Reliable Operation And Easy Manufacture, Centrifugal Water Pumps Are Widely Used. When The Pump Impeller Driven By The Crankshaft Rotates Counterclockwise, It Drives The Water In The Pump To Rotate Together. Under The Action Of Centrifugal Force, The Water Is Thrown To The Edge Of The Pump Casing To Generate a Certain Pressure And Flows Out From The Water Outlet. At The Center Of The Impeller, The Water In The Water Tank Is Sucked Into The Pump Through The Water Inlet Pipe, And Then Thrown Out By The Impeller, As The Water Is Thrown To The Outer Edge And The Pressure Is Reduced.
10. Piston
The Function Of The Piston Is To Withstand The Pressure Of The Gas In The Cylinder And Transmit This Force To The Connecting Rod. The Top Of The Piston Also Forms a Combustion Chamber Together With The Cylinder Head, And The Fuel Entering The Cylinder Is Burned In This Space.
11. Piston Ring (2PC Compression Ring, 1PC Oil Ring)
Piston Rings Are Divided Into Two Types: Gas Rings And Oil Rings. Their Functions And Requirements Are Different, So They Also Have Their Own Characteristics In Structure. The Function Of The Gas Ring Is To Ensure The Seal Between The Piston And The Cylinder Wall And Prevent The High Pressure Gas On The Upper Part Of The Piston From Leaking Into The Crankcase. In Addition To The Sealing Function, The Gas Ring Also Plays a Heat Transfer Function. Most Of The Heat Absorbed By The Top Of The Piston Is Transmitted To The Cylinder Wall Through The Gas Ring, And Then Taken Away By The External Cooling Medium. There Are Many Cross-Sectional Shapes Of Gas Rings. The Most Common Shapes Are As Follows: Rectangular Ring, Twisted Ring, Micro-Cone Ring, Barrel Ring And Trapezoidal Ring; Oil Rings Are Divided Into Ordinary Oil Rings And Combined Oil Rings. The Function Of The Oil Ring Is Mainly To Scrape Off The Excess Oil On The Cylinder Wall And Flow Back To The Crankcase To Reduce The Consumption Of Oil.
12. Fuel Filter Assembly (Including Coarse Filter)
In Order To Finely Filter The Diesel Oil And Prevent The Impurities And Dirt In The Diesel Oil From Wearing And Corroding Many Precision Parts In The Oil Supply, In The Diesel Engine, In Addition To The Sedimentation Cup (Most Diesel Engines Do Not Have a Sedimentation Cup), There Are Also Coarse And Fine Two First-Stage Filter (Most Of Small Single-Cylinder Diesel Engines Are First-Stage Filter). Diesel Pre-Filters Generally Have Larger Filter Slits To Filter Out Impurities With Larger Particles. The Diesel Fine Filter Has a Small Filter Gap, And It Is Necessary To Filter Out The Impurity Particles That Can Cause Harm To The Oil Supply System. After Passing Through The Two-Stage Filtration, The Diesel Oil Is Cleaner, And Then It Is Pressed Into The Fuel Injection Pump Through The Fuel Delivery Pump.
13. Shock Absorber
The Main Function Of The Shock Absorber Is To Absorb Vibration Energy And Achieve The Purpose Of Vibration Reduction. At Present, Silicone Oil Shock Absorbers Are Mainly Used In Engines. The Vibration Reduction Principle Of Silicone Oil Shock Absorbers Is That When Resonance Occurs, a Certain Relative Displacement Occurs Between The Silicone Oil Shock Absorber Housing And The Inertia Block, And The Silicone Oil In The Gap Is Subjected To Shear Force. , So As To Generate Viscous Friction Torque, Thereby Absorbing Vibration Energy And Achieving The Purpose Of Vibration Reduction.
14. Oil Cooler Assembly
The Oil Cooler Is Placed In The Cooling Water Circuit, And The Temperature Of The Cooling Water Is Used To Control The Temperature Of The Lubricating Oil. When The Temperature Of The Lubricating Oil Is High, It Is Cooled By The Cooling Water, And When The Engine Is Started, The Heat Is Absorbed From The Cooling Water To Rapidly Increase The Temperature Of The Lubricating Oil. The Oil Cooler Is Composed Of a Shell Made Of Aluminum Alloy And a Copper Core Tube. The Cooling Water Flows Outside The Tube, The Lubricating Oil Flows Inside The Tube, And The Two Exchange Heat. There Are Also Structures That Allow Oil To Flow Outside The Tube And Water To Flow Inside The Tube.
15. Various Rubber Hoses
Used To Transport Hydraulic Fluids Such As Fuel And Lubricating Oils.
16. Turbocharger Lubricating Oil Pipe
Connect The Body To The Supercharger, And The Pipeline Through Which The Lubricating Oil Passes.
17. Oil Inlet Pipe Of Supercharger Lubricating Oil Pipe
The Pipeline Through Which The Lubricating Oil Flows To The Supercharger On The Body.
18. Oil Outlet Pipe Of Supercharger Lubricating Oil Pipe
The Pipeline Through Which The Lubricating Oil Flows From The Supercharger Back To The Body.
19. Automatic Tensioner
It Can Automatically Adjust The Tension Force To Keep The Tension Force Constant. If The Tension Is Too Large, The Drive Device Is Prone To Noise And The Life Of The Belt Is Shortened; If The Tension Is Too Small, The Belt Is Prone To Vibration And Noise, And The Belt Is Wrinkled And Damaged, Resulting In a Shortened Life.
20. Injector Bushing
It Is Installed On The Cylinder Head And Isolates The Fuel Injector From The Other Chambers Of The Cylinder Head.
21. Fan Support
Parts Used To Secure The Fan And Provide Auxiliary Support.
22. Oil Pan Gasket
The Part That Seals The Connection Between The Oil Pan And The Crankcase.
23. Ball Bearing
A Kind Of Rolling Bearing, The Spherical Steel Ball Is Installed Between The Inner Steel Ring And The Outer Steel Ring, And It Is Easy To Roll To Reduce The Friction During The Power Transmission Process And Improve The Transmission Efficiency Of Mechanical Power. The Rolling Bearing Cannot Bear Large Heavy Loads.
24. Timing Gear Room
It Is Used To Fix Or Install Crankshaft Gear, Timing Gear, Idler Gear And Drive Gear Of High Pressure Oil Pump.
25. Exhaust Pipe Bolts
Tighten The Exhaust Pipe To The Cylinder Head Bolts.
26. Piston Pin
The Part That Connects The Piston To The Connecting Rod.
27. Connecting Rod Assembly
The Reciprocating Motion Of The Piston Is Converted Into The Rotary Motion Of The Crankshaft, And The Gas Pressure Acting On The Piston Group Is Transmitted To The Crankshaft, So That The Crankshaft Drives The Working Machine To Do Work.
28. Temperature Sensor
A Component Used To Sense Temperature Information Related To a Diesel Engine.
29. ChrankShaft Oil Seal
The Crankshaft Oil Seal Is To Prevent Oil Leakage. There Are Oil Passages On The Crankshaft, Which Are Used To Lubricate The Large And Small Tiles Of The Crankshaft. If The Oil Leaks, The Lubrication Of The Large And Small Wads Cannot Be Guaranteed, And The Oil Is Also Consumed.
30. Heater
Generally, When The Temperature Is Low, The Air Is Heated To Start The Engine; The Engine Does Not Need An Air Heater During Normal Operation. The Air Heater Is Generally Used In a Low Temperature Environment And Is Used At Startup To Increase The Intake Air Temperature Of The Engine. Makes It Easier For The Fuel To Catch Fire In The Cylinder To Start.
