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PERFOMANCE BOOST The Freescale* MPXV4115V pressure sensor is the ideal part for automotive vacuum sensing needs such as those found in the brake booster application. Prepared by Marc Osajda Automotive Sensor Marketing Motorola – Toulouse, France Advanced braking systems are becoming increasingly common in today’s automobiles. Higher level systems and technology now being used in “brake assist systems” (BAS) in several European cars, have made it possible for more efficient and intelligent braking systems. A key functional application block found in these braking systems that has advanced with this technology surge, is the vacuum brake booster function. Here are a few driving factors behind the need and use of the brake booster, which helps ensure a safer braking system. Independent Systems: In current gasoline engine cars, the engine’s intake manifold generates the vacuum for the brake booster. This system works fine with one exception. The amount of vacuum in the brake booster is unknown by the braking system. Thus the amount of amplification is also unknown. If heavy braking is needed, there is no possibility for the brake system to interact with the intake manifold if additional amplification is required. The manufacturer’s interest for having the vacuum generated by an auxiliary vacuum pump is that the brake system can manage the amount of vacuum as required, on demand. This in turns gives it the ability to perform amplification on its own, giving it complete independent from the engine’s operating condition. The auxiliary pump is also able to provide higher amounts of vacuum whenever necessary. In situations calling for heavy braking, the pressure will naturally decrease in the brake booster, also causing a decrease in the amplification during braking. With an external pump it is possible to maintain, or even increase the amplification during a heavy braking phase. Smart Safety: Wheel blocking due to high-braking force is controlled by the Anti-Lock Brake System (ABS). However, it has been observed that in many cases, drivers do not...
Fifty percent less pedal force I n most of the models of the 1950s and 1960s, Mercedes-Benz provided a power brake booster manufactured by ATE. The booster does not pro- vide additional braking capacity, a common misconception, but rather reduces the pedal force required for braking. The power brake is a vacuum-assisted hydraulic component using the pressure difference between engine intake manifold vacuum and atmospheric pressure for its operation. The power unit increases the pressure created physically in the brake master cylinder so that the same braking effect can be produced with less pedal effort. With a brake booster installed, the pedal force required for braking is reduced by 50 percent. The ATE T50 Brake Booster uses vacuum to “boost” the hydraulic brakeline pressure. The booster contains a hydraulic cylinder, a large vacuum piston that presses against the hydraulic cylinder, and a control circuit that regulates the vacuum flow based on brake-line pressures. This technology had been well proven since the early 1900s, and the T50 has been exceptionally reliable over many years of use. The Booster in action The power booster is a very simple design requiring only a vacuum source to operate. In gasoline-engine cars, the engine provides a vacuum suitable for the boosters. Because diesel engines do not produce a vacuum, dieselpowered vehicles must use a separate vacuum pump. A vacuum hose from the intake manifold on the engine pulls air from both sides of the diaphragm when the engine is running. When the driver steps on the brake pedal, the input rod assembly in the booster moves forward, blocking off the vacuum port to the backside of the diaphragm and opening an atmospheric port that allows air to enter the back chamber. Suddenly, the diaphragm has vacuum pulling against one side and air pressure pushing on the other. The result is forward pressure that assists in pushing the input rod, which in turn pushes the piston in the master cylinder. The amount of power assist that’s provided by the booster depends on the size of the diaphragm and the amount of intake manifold vacuum produced by the engine. A larger diaphragm will increase the boost.
M10_BIRC4058_05_SE_C10.QXD 3/30/07 Chapter 10:52 AM Page 255 10 DRIVESHAFT AND UNIVERSAL JOINT SERVICE OBJECTIVES After studying Chapter 10, the reader should be able to: 1. Perform the maintenance operations needed to keep a driveshaft operating properly. 2. Diagnose the cause of common FWD driveshaft problems. 3. Recommend the proper driveshaft repair procedure. 4.Correct RWD U-joint angularity and driveshaft balance problems. 5.Remove and replace FWD and RWD driveshafts. 6.Disassemble, inspect, and reassemble the common U-joints. 7.Make normal U-joint and CV joint repairs. 8.Complete the ASE tasks for content area D, Driveshaft and Universal/Constant-Velocity Diagnosis and Repair. KEY TERMS Antilock braking system (ABS) (p. 274) Balancing (p. 268) Grease spray (p. 258) Level protractor (p. 267) Phasing (p. 265) Plug-in connection (p. 272) Reluctor (p. 274) Runout (p. 262) 46106...
REVISED SEPTEMBER, 2011 This book is designed for instructional use only for authorized Nissan North America, Inc. and Nissan dealer personnel. For additional information contact: Nissan North America, Inc. Technical Training P.O. Box 685001 Franklin, TN 37068 © 2011 Nissan North America, Inc. All rights reserved. No part of this publication may be reproduced in any form without the prior written permission of the publisher. Nissan North America, Inc. Training Department Technical Training Revised Printing: September, 2011 This manual uses post consumer recycled fibers Training Department Technical Training Nissan North America, Inc. reserves the right to alter specifications or methods at any time.
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FIF~ Forthe Game. Forthe World. Ta THE MEMBERS OF FIFA Circular no. 1352 Zurich, 4 April 2013 SG/mfa/ial Bidding for D FIFA D FIFA D FIFA D FIFA D FIFA the following FIFA World Cups: U-17 Women's World Cup 2016 U-20 Women's World Cup 2016 U-17 World Cup 2017 U-20 World Cup 2017 Beach Soccer World Cup 2017 Dear Sir or Madam, FIFA is pleased to open the bidding for the above-listed FIFA World Cups. We invite all member associations to join the bidding process by completing and submitting the attached Declaration of Interest form. When reviewing the information, please bear in mind that while you may bid for more than one event, FIFA will only award one event per bidding association. FIFA World Cups open for bidding: FIFA U-17 Women's World Cup 2016 The development of football for girls and women has long been one of FIFA's top priorities. This is the "youngest" of FIFA's competitions. A major milestone was reached in 2008 when the inaugural FIFA U-17 Women's World Cup was held in New Zealand, marking the first time ever that men and women had the same youth tournament structure in football. The creation of this event (with 16 teams) has encouraged member associations to further develop women's football at youth level and to set up teams in even younger age graups. In addition, this tournament has enjoyed support fram different sectors of society in its host countries. For example, the last edition of the tournament in Azerbaijan 2012 was also a commercial success as four national companies, representing the main industries in the country, came on...
2014 FIFA World Cup Brazil™ FIFA PUBLIC GUIDELINES for use of FIFA’s Official Marks These Public Guidelines will be updated periodically. Please check FIFA’s website www.FIFA.com for the latest version. General © 2010 FIFA Issue #7 May 2013 CONTENT CHAPTER PAGE Section 1 Purpose of these FIFA Public Guidelines 3 Section 2 Ofﬁcial Marks 5 Section 3 Examples of Use (“Do’s and Dont’s”) 8 Section 4 General Beneﬁts (“How to get involved”) 20 Section 5 Contact Information 22 Annex 1 General Background of the 2014 FIFA World Cup™ 23 Annex 2 Media Information 26 These FIFA Public Guidelines will be updated periodically. Please check FIFA’s website www.FIFA.com for the latest version. FIFA Public Guidelines General Edition – Issue #7 © 2010 FIFA 2 SECTION 1 PURPOSE OF THESE PUBLIC GUIDELINES THE 2014 FIFA WORLD CUP™ The FIFA World Cup™ is an event staged on a scale of spectacular proportions. As the largest single sports event and most-watched competition on earth it enjoys phenomenal interest from sports fans and the business world alike. Many entities, organisations, businesses and non-commercial organisations will want to be a part of this event.
FiFA World CUp™ internAtionAl FootBAll sUpremACY A leader in international sports marketing Infront Sports & Media is an experienced international full-service sports marketing company with a capacity for innovation that is helping to transform the industry. These innovations have enhanced every area of sports marketing, including distribution of rights, host broadcast, programme production, event operations, brand development, sponsorship and online entertainment. © Infront Sports & Media AG 2014, Corporate Communications. All rights reserved. Editorial Contact: email@example.com www.infrontsports.com FIFA WORLD CUP™ INTERNATIONAL FOOTBALL SUPREMACY WINTER SPORTS The Fédération Internationale de Football Association (FIFA) has appointed Infront as exclusive sales representative for the distribution of broadcast rights to the 2018 and 2022 FIFA World Cups™ as well as all Other FIFA Events (OFEs) 2015-2022 across 26 Asian territories including China, Hong Kong, India, Indonesia, Singapore and Thailand. Key Facts •• The FIFA World Cup™ is the most popular sports event in the world – Other FIFA Events also register a strong growth in popularity •• Infront handles the distribution of media rights to the 2018 and 2022 FIFA World Cups™ and all other FIFA Events 2015-2022 •• Infront is responsible for 26 Asian territories comprising Afghanistan, Bangladesh, Bhutan, Cambodia, China, Chinese Taipei, Hong Kong, India, Indonesia, Kyrgyzstan, Laos, Macau, Maldives, Mongolia, Myanmar, Nepal, Pakistan, Philippines, Singapore, Sri Lanka, Tajikistan, Thailand, Timor Leste, Turkmenistan, Uzbekistan and Vietnam