What does a cam follower do?
The cam follower serves as a barrier between the high-pressure fuel pump and the camshaft that drives the pump. Over time, the cam follower in specific models will start to wear down until there is a hole. As it wears, small pieces and particles can break off and damage the fuel pump as well as the camshaft.
How do eccentric cam followers work?
Eccentric cam followers are used when there is a need to make height adjustments between the cam follower and the track. By simply turning the entire cam follower inside the housing it is possible to adjust the distance between the cam follower and the track by twice the eccentricity.
What is a crowned cam follower?
These are two main styles when it comes to the outer rings for cam followers: flat or crowned. Flat outer rings, also called cylindrical outer rings, are exactly as they sound – flat across the width of the OD. Crowned outer rings are beveled on the outer ring/head itself.
Is a cam follower a lifter?
The cam follower is a cylindrical device that tracks the shape of the cam lobe and reciprocates the movement to the opening and closing of the valves in the combustion chamber. The follower drives a piston that is enclosed in a cylindrical casing. This casing-piston assembly is known as the lifter.
Are cam followers tappets?
A tappet is also known as a valve lifter or cam follower.
What are the different types of cam followers?
Wedge or Flat Cam. The wedge or flat cam has a straight shape to provide a specific movement of the followers.
What is roller follower?
The Roller Follower is a compact and highly rigid bearing system. It contains needle bearings and is used as a guide roller for cam discs and straight motion. Since its outer ring rotates while keeping direct contact with the mating surface, this product is thick- walled and designed to bear an impact load.
What is stroke of the follower?
Stroke or throw:The greatest distance or angle through which the follower moves or rotates. Follower displacement: The position of the follower from a specific zero or rest position (usually its the position when the f ollower contacts with the base circle of the cam) in relation to time or the rotary angle of the cam.
What causes a cam follower to break?
Follower breakage Causes: Mechanical overload resulting from: 1 Sticking or seized valve, resulting in the follower to break due to cam-lobe pressure. Incorrect assembly of valve tip-cap. Timing belt breakage.
What are the 6 types of cams?
Types of Cams
- Wedge or flat cam.
- Disk or Plate cam.
- Spiral cam.
- Cylindrical cam.
- Heart-shaped cam.
- Translating cam.
- Snail drop cam.
- Conjugate cam.