词条 | Vacuum delay valve | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
释义 |
A vacuum delay valve is a valve with a small orifice, which delays a vacuum signal. These are commonly used in automobiles to alter the behavior of vacuum switches, vacuum motors, and other vacuum devices. The engine in a common automobile produces almost {{convert|20|inHg|kPa|sp=us|lk=on}} of vacuum, and this pressure differential has been utilized for everything from automatic locks and windshield wipers to operating emissions control items. Engine vacuum is also the best direct source of information on the engine's load. Most delay valves have a one-way function, where there is either no restriction or no movement in one direction. Delay valves are usually color-coded to their function.[1]
References1. ^"1988 Jeep Cherokee Technical Service Manual.", "Spark Control System." Chrysler, 1987. {{automotive-part-stub}} 3 : Valves|Automotive technologies|Pollution control technologies |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
随便看 |
开放百科全书收录14589846条英语、德语、日语等多语种百科知识,基本涵盖了大多数领域的百科知识,是一部内容自由、开放的电子版国际百科全书。