Advanced Vehicle Technology Episode 3 Part 7 ppsx

... trailer reservoir to the brake actuators to stop the vehicle. 12 .3 Air operated power brake equipment 12 .3. 1 Air dryer (Bendix) (Fig. 12 .7( a and b)) Generally, atmospheric air contains water ... delivering air charge to the third and fourth reservoir. 12 .3. 7 Pressure reducing valve (piston type) (Fig. 12. 13( a, b and c)) Various parts of an air brake system may need to operate at...

Ngày tải lên: 21/07/2014, 17:20

... wheel relative to the ground 30 2 Dynamic balance 30 4 Lateral run-out 30 9 Methods of balancing wheels 30 4 Radial run-out 30 9 Static balance 30 2 Twitch 30 4 Wobble 30 4 Wheel and tyre run-out 30 9 Wheel bearing ... steering 35 4 654 Vane vacuum type pump 499 Variable load sensing valve 538 Variable rate leaf suspension springs 4 17 419 Vertical pillar strut suspension 37 8 Vir...

Ngày tải lên: 21/07/2014, 17:20

... ring 33 3 Flow control orifice 33 3, 33 4 Flow control valve plunger 33 3 Drive shaft 33 1, 33 2, 33 3 Pressure relief valve 33 3, 33 4 Roller 33 1, 33 2, 33 3 Roller carrier lobe 33 1, 33 2, 33 3 Rotor 33 1, 33 2, ... medium, duty 33 7, 33 8 Ball joint dust cover 33 7, 33 8 Ball joint lubrication 33 9 Ball joint sockets 33 7, 33 8 Description of ball joint 33 7,...

Ngày tải lên: 21/07/2014, 17:20

... degψ 1.8 1.6 1.4 1.2 1.0 0 Drag coefficient ( ) C D 0102 030 Fig. 14.58 Influence of yaw angle upon aerodynamic drag 625 Airstream Drag coefficient ( ) C D 0.8 0 .7 0.6 0.5 0.4 3. 0 3. 2 3. 4 3. 6 3. 8 4.0 Low cab High cab Adjustable ... windscreen/roof leading edge (attached air flow over cab roof) 0.8 0 .7 0.6 0.5 0.4 Drag coefficient ( ) C D 3. 0 3. 2 3. 4 3. 6 3. 8 4.0 4.2 Bo...

Ngày tải lên: 21/07/2014, 17:20

... degγBonnet slope angle ( ) degα Drag coefficient ( ) C D (a) (b) (c) ∝ ∝ 0 .32 0 .32 30 40 50 60 70 0 246810 0 .34 0 .34 0 .36 0 .36 0 .38 0 .38 0.40 0.40 Drag coefficient ( ) C D Dra g coefficient ( ) C D Fig. ... and ground. (a) (b) 0.0 0.1 0.2 0 .3 0.4 Tail extension (mm) Drag coefficient ( ) C D 0 500 1000 1500 2000 6000 432 1 2 3 4 70 0 130 0 1900 572 0 mm5650 mm 1 Fig. 14...

Ngày tải lên: 21/07/2014, 17:20

... discharge pressure of P 2 (see Fig. 13. 8). 13. 3.2 Evaporator (Fig. 13. 6) The evaporator's function is to transfer heat from the food being stored in the cold compartment into the circulating refrigerant ... evaporator coil can be absorbed through the metal walls of the tubing, see Fig. 13. 15(a and b). 13. 3 .3 Condenser (Fig. 13. 6) The condenser takes in saturated refrigerant vap...

Ngày tải lên: 21/07/2014, 17:20

... trucks and large articulated vehicles are shown in Figs 13. 1 and 13. 2 respectively. Refrigeration systems designed for motor vehicle trucks are basically made up of two parts supported on an aluminium ... compartment temperature for frozen food is usually set between À22  C and À25  C whereas the chilled compartment temperature is set between 3  C and 5  C. 13. 1 Refrigeration term...

Ngày tải lên: 21/07/2014, 17:20

... exhaust valve and opens the inlet valve. Air is now able to flow from the tractor emergency 539 12 .3. 23 Brake actuator chambers Purpose Brake actuator chambers convert the energy of compressed ... reduced. Fig. 12.20 (a±c) Quick release valve 533 (supply) line to the trailer's emergency line via the open inlet valve mounted in the lower part of the dump valve. As a result, when...

Ngày tải lên: 21/07/2014, 17:20

... P 3  F 2 A 2  1:88  4 (0:018) 2  73 8 7: 93 kN=m 2 or 73 : 9 bar c) Total power piston and  F 1  F 2 pedal push rod thrust  1:2  1:88  3: 08 kN Total master cylinder fluid pressure P 3  F 3 A 2  3: 08  4 (0:018) 2  121 03: 635 ... F 1  F Â 4  30 0 Â 4  1200 N or 1:2kN Master cylinder fluid pressure P 3  F 1 A 2  1:2  4 (0:018) 2  471 5:7kN=m 2 or 47: 2 bar F...

Ngày tải lên: 21/07/2014, 17:20

... (Fig. 11 .34 (a)). Fig. 11 .33 Load sensing and progressive pressure limiting valve front to rear brake line characteristics Fig. 11 .34 (a and b) Inertia pressure limiting valve 485 Fig. 11 .39 (a±c) ... cylinder bridge caliper which straddles Fig. 11.20 Sliding yoke type brake caliper 4 73 minimum of slip (Fig. 11 . 37 ). Thus there is conflict between an increasing braking force and a de...

Ngày tải lên: 21/07/2014, 17:20