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TEKSTI ME NGYR TE KUQE NUK ESHTE MARR NE TEM

Diaphragm brake cylinder

The brake cylinders to set the transferred by compressed airenergy into kinetic energy. By means of a compressed air bar the

kinetic energy is transferred to the wheel brakes.

Because of their small size and its ease of maintenance usually

diaphragm brake cylinders. These cylinders a membrane is

supplied with compressed air. It shifts the piston and piston rod

with the attached fork head, where the slack adjuster lever is

attached. For a different curvature of the membrane leads to

different large effective pressure areas. Therefore membrane

cylinders in the power output is not quite linear with applied

brake pressure (Fig. 3). When venting of the brake cylinder (not

operating the foot valve), a compression spring pushing the

piston and the diaphragm returns to its initial position.

Figure 3 diaphragm brake cylinder

a ambient pressure (pressure, ie no pressure)

b partial pressure (shared with the service brake valve, effective operating pressure)

1 push rod 2 Spring 3 piston 4 membrane

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Spring brake cylinder

This is also known as Spring Brake Cylinder are usually used on

the rear axle. They consist of a combination of a piston or

diaphragm brake cylinders and a spring storage portion (Fig. 4).

The diaphragm or piston brake cylinder acts as a service brake,

the spring-loaded part of the parking brake. Upon actuation of the

abstufbaren Handbremsven-off valve, the spring-loaded brake

cylinder can be vented completely or partially: The spring then

moves the piston and acts upon the brake. In abstufbarem

venting the combined cylinder, the parking brake can be used as

an emergency brake. If pressure drops, the two combined

cylinder engine would slow the car by the effective spring force. Acheck valve to prevent a fall in the pressure in the cylinders at

Combined pressure loss in the

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Brake system. An overload protection valve can also prevent

simultaneous operations of hand and foot brake adding the

braking forces and damage to the mechanical components of the

combined cylinder.

Figure 4 spring brake cylinder (combined cylinder) - function

a ambient pressure (pressure, ie no pressure)

b partial pressure (shared with the service brake valve, effective working

pressure)

c reservoir pressure (generated by the compressor, maximum operating pressure)

1 crown 2 pushrod 3 bellows

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4 compression spring (diaphragm brake cylinder) 5 pistons

6 membrane 7 Plunger 8 spring (spring)

9 piston 10 combined cylinder housing

Figure 4 a service brake position

Between driving position and maximum adjustment at full braking

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Figure 4 b parking brake position

Braking action only by compression spring (spring)

Air brake functionA compressor usually more containers filled with compressed air. On compressed air linesdoes this, the pressure in the tanks pressure on a membrane cylinder. The driver regulatesthe effective pressure with the service brake valve.The brake force is finally transmitted viaa linkage to the respective wheel brakes. The vehicle is braked.a ambient pressure (ie no pressureb partial pressure (shared with service brake valve, effective operating pressure)c reservoir pressure (produced with maximum working pressure compressor)

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1 Compressor 2 reservoir for compressed air3 The brake control valve 4 cylinder 5 wheel

Service brake position

Corresponding to the pedal force, which is exerted by the driver on the brake pedal, thecompressed air flows into the two service brake circuits of the motor vehicle. The air flowsthrough the load sensing valve (automatic load-sensing valve) to the combined cylinders ofthe rear axle and the front axle to the brake cylinders. The LSV controller provides anadjustment to the effective pressure at the respective loading condition. The vehicle isbraked. Both service brake circuits also control of the trailer brake valve, compressed air isfed via two independent of each other leads to the trailer forward (supply line and brakeline). From the reservoir of the trailer compressed air passes through a load sensing valve inthe brake actuator of the trailer. Braking the trailer.On full brake (stop the brake pedal) all diaphragm brake cylinder (tractor and trailer) withmaximum pressure be applied.Brake is stationary motor car1 compressor 2 air dryer with regulator3 regeneration tank 4 four circuit protection valve

5 air tank 6 service brake valve

7 Mountain brake actuating cylinders 8 cylinder

9 spring brake cylinders combined cylinder 10 ALB regulator

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11 Overload protection valve 12 trailer control valve

13 Hand brake valve 14 Doppeldruckmanometer15 Emergency coupling 16 brake coupling head

17 test port 18 warning switch 19 vent valve

a compressed air lines (generated by the compressor maximum operatingpressure)b ambient pressure (ie no pressure gauge)

Trailer5 air tank 8 cylinder 10 LSV controller

15 Emergency coupling 16 brake coupling head

17 test port 20 inline filter

21 trailer brake valve 22 retaining valve

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