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1. 发明授权

US06711944B2 Method of testing assembled internal combustion engine 失效
标题翻译：组装内燃机的测试方法
公开(公告)号：US06711944B2
公开(公告)日：2004-03-30
申请号：US10244387
申请日：2002-09-17
申请人： Naoyuki Maruta , Nobuaki Suzuki
发明人： Naoyuki Maruta , Nobuaki Suzuki
IPC分类号： G01M1500
CPC分类号： G01M15/09 , F02B2275/18 , G01M15/106
摘要： A method of testing the assembled state of an internal combustion engine and quickly and accurately judging whether there is at least one fault with the assembling of the engine. While an exhaust-valve side space is closed and a crank shaft is rotated at a constant speed, the pressure in the exhaust-valve side space and the pressure in a surge tank are detected by pressure sensors, respectively. The assembled state of an engine is tested based on the predetermined conditions of the detected two pressures. Those predetermined conditions may be the crank-shaft angles when the two pressures take respective maximal values, the crank-shaft angles when the two pressures change from their constant states to their increasing or decreasing states, etc. Based on those values, incorrect phases of crank and cam pulleys, incorrect clearances of intake and exhaust valves, missing of a compression ring, etc. can be identified.
摘要翻译：一种测试内燃机的组装状态并快速准确地判断发动机的组装是否至少存在一个故障的方法。当排气阀侧空间闭合并且曲轴以恒定速度旋转时，排气阀侧空间中的压力和缓冲罐中的压力分别由压力传感器检测。基于检测到的两个压力的预定条件来测试发动机的组装状态。这些预定条件可以是当两个压力采取相应的最大值时曲柄轴角度，当两个压力从其恒定状态变化到其增加或减少状态时的曲柄轴角度等。基于这些值，不正确的相位曲柄和凸轮滑轮，进气门和排气门的间隙不正确，压缩环的缺失等。

2. 发明授权

US06481269B2 Method of testing assembled internal combustion engine 失效
标题翻译：组装内燃机的测试方法
公开(公告)号：US06481269B2
公开(公告)日：2002-11-19
申请号：US09214936
申请日：1999-01-15
申请人： Naoyuki Maruta , Nobuaki Suzuki
发明人： Naoyuki Maruta , Nobuaki Suzuki
IPC分类号： G01M1500
CPC分类号： G01M15/09 , F02B2275/18 , G01M15/106
摘要： A method of testing the assembled state of an internal combustion engine and quickly and accurately judging whether there is at least one fault with the assembling of the engine. While an exhaust-valve side space is closed and a crank shaft is rotated at a constant speed, the pressure in the exhaust-valve side space and the pressure in a surge tank are detected by pressure sensors, respectively. The assembled state of an engine is tested based on the predetermined conditions of the detected two pressures. Those predetermined conditions may be the crank-shaft angles when the two pressures take respective maximal values, the crank-shaft angles when the two pressures change from their constant states to their increasing or decreasing states, etc. Based on those values, incorrect phases of crank and cam pulleys, incorrect clerances of intake and exhaust valves, missing of a compression ring, etc. can be identified.
摘要翻译：一种测试内燃机的组装状态并快速准确地判断发动机的组装是否至少存在一个故障的方法。当排气阀侧空间闭合并且曲轴以恒定速度旋转时，排气阀侧空间中的压力和缓冲罐中的压力分别由压力传感器检测。基于检测到的两个压力的预定条件来测试发动机的组装状态。这些预定条件可以是当两个压力采取相应的最大值时曲柄轴角度，当两个压力从其恒定状态变化到其增加或减少状态时的曲柄轴角度等。基于这些值，不正确的相位曲柄和凸轮滑轮，进气门和排气门的不正确的字符，压缩环的缺失等。

3. 发明授权

US06236213B1 Method and apparatus for inspecting spark plug while spark plug is installed in engine 失效
标题翻译：用于在火花塞安装在发动机中时检查火花塞的方法和装置
公开(公告)号：US06236213B1
公开(公告)日：2001-05-22
申请号：US09269936
申请日：1999-04-08
申请人： Naoyuki Maruta , Nobuaki Suzuki
发明人： Naoyuki Maruta , Nobuaki Suzuki
IPC分类号： F02P1722
CPC分类号： H01T13/58 , F02P17/12 , F02P2017/121 , G01L19/02 , H01T13/60
摘要： Method and apparatus for inspecting a spark plug as installed in an engine, for an abnormal size of a discharge gap and cracking of porcelain, based on a shape parameter value Sn (=Vn/Tn) calculated from a voltage parameter value Vn which is an average of primary voltage V1 during a period of substantially inductive discharge, and a time parameter value Tn indicative of the period of the substantially inductive discharge. The inspection for the abnormal discharge gap size is effected with the engine held at rest, while the inspection for the porcelain cracking is effected with the engine controlled by a motor so as to increase air pressure within the cylinder bore, contrary to conventional system wherein the inspection is effected during operation of the engine by combustion of an air-fuel mixture.
摘要翻译：基于由电压参数值Vn计算出的形状参数值Sn（= Vn / Tn），用于检查安装在发动机中的火花塞，用于放电间隙的异常尺寸和瓷器破裂的方法和装置，在大致感应放电期间的初级电压V1的平均值，以及表示基本感应放电的周期的时间参数值Tn。异常放电间隙尺寸的检查是在发动机保持静止的情况下进行的，而用电动机控制的发动机进行陶瓷破裂的检查，以便增加气缸孔内的气压，这与常规系统相反，其中在空气燃料混合物的燃烧中在发动机运转期间进行检查。

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