KSB solenoids are manufactured by Bosch, and are part of a cold start device (CSD) that increases the pressure in the fuel pump in some diesel engines. The increased pressure injects more fuel, allowing the vehicle to start on colder days.
A solenoid is a multi-use device consisting of wire that is coiled around a hollow core. When electrified, the iron center becomes magnetized and is pulled downwards into contact with electrical points that engage mechanical processes.
When the engine is below a certain temperature, a KSB solenoid engages. When the solenoid is activated it overrides the fuel pump in order to get more diesel into the starter system.
A KSB solenoid has two stages for different temperature conditions. Stage one engages when the vehicle is being started at temperatures between 44.6 and 68 degrees Fahrenheit, while stage two engages at temperatures below 44.6 degrees Fahrenheit. The solenoid disengages at temperatures above 68 degrees Fahrenheit, returning control of the fuel pump to the pressure regulator.
- Photo Credit diesel storage tank image by Jim Parkin from Fotolia.com
What Are the Functions of a Starter Solenoid Relay?
Automobiles utilize a starter motor to start the engine. The main components are the starter switch, the solenoid and the starter motor....
What Does a Bowl Vent Solenoid Do?
All vehicles with internal combustion engines have carburetors that blend air and fuel. When the engine is turned off, the vapors are...
What Is the Purpose of a Solenoid?
Solenoids are used in a variety of systems, but most commonly in cars. Starters in particular use solenoids. Often when a vehicle's...
Explanation of a Diesel Fuel Injection Pump
Patented by Rudolf Diesel in 1892, the diesel engine is an internal-combustion engine that uses pressure to ignite fuel rather than a...
What Are the Functions of the Fuel Pump?
Vehicle engine systems require a constant supply of fuel, which is produced via a fuel tank. Fuel is drawn from this tank...
The Function of a Gear Pump
A pump refers to a device designed to move fluids. A gear pump pumps fluid by gear revolution through a displacement process.
What Is a Transmission Control Solenoid?
With manual transmission vehicles you work the clutch yourself to shift gears. With an automatic transmission system, shifting is controlled by a...
How to Check the Fuel Pressure of a Diesel Fuel Pump
The fuel pump in your car is responsible for managing the state of the fuel system between the gas tank and your...
How to Wire From Winch to Solenoid to Switch
The winch's solenoid is its power switch and main safety device. When electricity is sent to the solenoid upon activation of the...