
Deutz Engine Parts 223 0848 Rocker Arm on Sale
Product Model: 490B-06002-XC Engine valve tappet
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Product Title: Engine Valve Tappet
Product Model: 490B-06002 for Xinchai 490B Engine
Products Photos


Products Parameters
|
Item |
Description |
|
Product Name |
Engine Valve Tappet (490B/495B/498B) |
|
P/N |
490B-06002 |
|
Applied Model |
Xinchai Diesel Engine 490B/495B/498B |
|
Net Weight (kg) |
0.75 |
|
Gross Weight (kg) |
1.20 |
|
Qty per Carton |
8 Root / Table Sleeve |
|
Carton Size (cm) |
15*11*7 |
Products Description
The Roles of Engine Valve Tappet
Valve lifters, or tappets, are an integral part of the engine's valve train, and their design and material selection significantly impact the engine's performance and reliability.
The primary functions of valve lifters include:
1. Transmitting Thrust:
The tappet transfers the thrust from the camshaft effectively to the push rod or directly to the valve stem, ensuring the proper operation of the engine.
2. Withstanding Lateral Forces:
Due to the rotation of the camshaft, the tappet must withstand the lateral forces imparted by the cam and transfer these forces to the engine block or cylinder head.
3. Adjusting Valve Clearance:
Through the use of an adjusting screw, the valve tappet can adjust the valve clearance. This adjustment is crucial to prevent excessive clearance between the valve and the valve seat after the engine has been subjected to high temperatures or wear, which could impair the seal.
4. Reducing Noise:
Precise adjustment of the valve clearance by the tappet helps minimize the noise and impact associated with the valve train during operation, contributing to smoother engine performance and enhanced durability.
By performing these functions, valve valves ensure that the engine operates efficiently and reliably, with minimized noise and optimal valve timing.
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