渺小的渺组词
专利名称：Sealed housing evaporative determination testing apparatus and method
孩子厌学咋办发明人：Hassan A. Artail,Dennis M. Blumke
申请号：US08/383144
申请日：19950203
公开号：US05592372A
公开日：
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19970107
梦见喝汤
怀孕可以喝红酒吗专利内容由知识产权出版社提供
摘要：A computer controlled aled housing evaporative determination (SHED) testing apparatus and method are provided for testing evaporative emissions for a motor vehicle. The SHED testing apparatus includes a substantially air-type testing structure for enclosing a subject motor vehicle and containing a quantity of ambient air. The ambient air is sampled at the beginning and end of a given test to measure the amount of hydrocarbons prent therein. The apparatus undergoes a predefined testing procedure in which temperature of the air within the aled testing structure is controlled in a predefined manner. To account for pressure changes due to the changing temperature, a portion of the ambient air contained within the testing structure may be evacuated from or introduced into the testing structure so as to maintain a substantially constant pressure differential of zero. The evacuated or introduced air is sampled and tested to determine the amount of hydrocarbons added into and evacuated from the testing structure. The total added and evacuated hydrocarbons are ud with the beginning and end test measurements to determine a net evaporative emissions.二胡独奏一枝花
革命烈士申请人：CHRYSLER CORPORATION
代理人：Mark P. Calcaterra
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