WG9000360520 SINOTRUK® Genuine -Total Brake Valve – Spare Parts For SINOTRUK HOWO Part No.:WG9000360520
Basic information
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Specifications
|
PRODUCT NAME |
WG9000360520 |
OE NO. |
WG9000360520 |
BRAND NAME |
SINOTRUK Howo |
|
MODEL NUMBER |
WG9000360520 |
TRUCK MODEL |
WP10, WP12, WP6, WP7, WP5, WP4, WP3, WD615, WD618 |
PLACE OF ORIGIN |
Shandong, China |
|
SIZE |
Standard Size |
CERICATION |
CCC |
APPLICABLE |
Howo |
|
FACTORY |
CNHTC SINOTRUK |
TYPE |
BELT |
MOQ |
1pc |
|
APPLICATION |
ENGINE SYSTEM |
QUALITY |
High-Performance |
MATERUAK |
Rubber |
|
PACKING |
Standard Package |
SHIPPING |
By sea, By air |
PAYMENT |
T/T |
Relevant Knowledge
Brake master cylinder (also called brake master cylinder). The pressure of the whole braking system is established by it. If it fails, the whole braking system will fail or its efficiency will be reduced, which means that the braking distance becomes longer or there is no braking at all. This situation is very dangerous. So the brake master cylinder is very important. Its structure is not complicated and its working principle is very simple. Let's talk about it today.
Structure of brake master cylinder
It is mainly composed of shell, piston, return spring, sealing cup and liquid storage tank
Working principle of brake master cylinder
When braking, the pedal pushes the piston to move, and the pressure in the working chamber composed of the piston, sealing cup and housing increases, and the brake fluid is discharged to the wheel cylinder.
There are two small holes in the part of the brake master cylinder housing contacting with the reservoir: hole A and hole B, and a compensation hole on the piston.
In the free state, that is, without stepping on the brake, the piston returns under the return spring force, and the front cup of the piston is between hole A and hole B. The working chamber in front of the piston is connected with the reservoir through hole A. The oil pressure in the working chamber is balanced with the brake fluid in the reservoir.
When the brake is pressed, the pedal pushes the brake master cylinder piston and sealing cup forward. When the piston and sealing cup cross hole A, the working chamber is closed, the oil pressure rises, and the brake fluid is discharged to the wheel cylinder, pushing the brake pad to move.
Analysis of compensation function of brake master cylinder
Why can you unscrew the bleed bolt on the wheel cylinder to remove the air from the brake system after several brake applications; Why is it that when the gap between the brake pad and the brake drum is too large, the first foot brake becomes soft and low, while the second foot becomes hard and high? Experienced maintenance workers can basically determine the failure of the brake system by stepping on the brake, all of which are based on the compensation function of the brake master cylinder.
When the brake pedal is released, the master cylinder piston returns under the return spring force, the working chamber oil pressure drops, and the slave cylinder and pipeline return oil. However, if you release the brake pedal quickly, the brake fluid at the rear of the piston will push the cup through the compensation hole on the piston and enter the working chamber in front of the piston. When the brake is pressed again, the brake fluid in the working chamber is discharged to the oil circuit and the slave cylinder again. Loosen and step on the brake so quickly and repeatedly, because the brake fluid at the rear of the piston compensates for entering the working chamber, making the working chamber produce more oil each time and return less oil. This function is called the compensation function of the brake master cylinder.
