公开(公告)号：US4416243A

公开(公告)日：1983-11-22

申请号：US370069

申请日：1982-04-20

申请人： Mitikatu Naito ,  Kiyotosi Yano ,  Kazuo Itou

发明人： Mitikatu Naito ,  Kiyotosi Yano ,  Kazuo Itou

IPC分类号： F16K31/126 ,  F02B3/06 ,  F02D3/00 ,  F02D21/08 ,  F02D35/00 ,  F02M25/07 ,  G05D16/06 ,  F02M25/06

CPC分类号： G05D16/0661 ,  F02D21/08 ,  F02M26/56 ,  F02B3/06

摘要： A vacuum modulating chamber of a vacuum control valve is communicated with a diaphragm chamber of a EGR valve for controlling an amount of exhaust gas to be recirculated into combustion chambers of an engine, so that a modulated negative pressure is applied thereto. The chamber is provided with a diaphragm deflected responding to the negative pressure in the chamber. The vacuum control valve is further provided with a cam member and a spring which urges the diaphragm in one direction so as to change a value at which the pressure in the vacuum modulating chamber is controlled, wherein a diameter of the cam member is larger than that of the diaphragm.

摘要翻译： 真空控制阀的真空调节室与EGR阀的隔膜室连通，用于控制要再循环到发动机的燃烧室中的废气量，从而向其施加调节的负压。 腔室设有响应于腔室中的负压而偏转的隔膜。 真空控制阀还设置有凸轮构件和弹簧，其在一个方向上推动隔膜，以改变控制真空调节室中的压力的​​值，其中凸轮构件的直径大于 的隔膜。

公开(公告)号：US4598729A

公开(公告)日：1986-07-08

申请号：US388659

申请日：1982-06-15

申请人： Mitikatu Naito ,  Kiyotosi Yano ,  Kazuo Itou ,  Kunihiro Tsuzuki ,  Masaaki Tanaka ,  Michio Kawagoe

发明人： Mitikatu Naito ,  Kiyotosi Yano ,  Kazuo Itou ,  Kunihiro Tsuzuki ,  Masaaki Tanaka ,  Michio Kawagoe

IPC分类号： F02B1/04 ,  F02M25/07 ,  G05D16/20 ,  G05D16/06

CPC分类号： G05D16/2093 ,  F02M26/57 ,  G05D16/2013 ,  F02B1/04 ,  Y10S137/907 ,  Y10T137/2409 ,  Y10T137/261 ,  Y10T137/86919 ,  Y10T137/87217

摘要： A negative pressure control valve for generating a negative pressure has an inlet port communicating with a negative pressure source, an outlet port communicating with a negative pressure load, a diaphragm chamber with one surface defined by a diaphragm, and an atmospheric pressure chamber adjacent to the diaphragm chamber through the diaphragm and communicating with atmospheric pressure. The diaphragm holds a valve holding member. A solenoid operated mechanism which moves the valve holding member to a first or second position in accordance with an exciting current is disposed in the atmospheric pressure chamber. The valve holding member has a valve mechanism which communicates the diaphragm chamber with the atmospheric pressure chamber at the first position and seals a channel between those chambers at the second position. The solenoid operated mechanism selectively communicates the diaphragm chamber with the atmospheric pressure chamber.

摘要翻译： 用于产生负压的负压控制阀具有与负压源连通的入口端口，与负压负载连通的出口端口，具有由隔膜限定的一个表面的隔膜室和与该隔膜相邻的大气压力室 隔膜室通过隔膜并与大气压力相通。 隔膜保持阀保持构件。 根据励磁电流将阀保持构件移动到第一或第二位置的电磁操作机构设置在大气压力室中。 阀保持构件具有阀膜机构，该阀机构使隔膜室与第一位置处的大气压力室连通，并且在第二位置处密封这些室之间的通道。 电磁操作机构选择性地将隔膜室与大气压力室连通。

公开(公告)号：US4440139A

公开(公告)日：1984-04-03

申请号：US398711

申请日：1982-07-15

申请人： Mitikatu Naito ,  Kiyotosi Yano ,  Kazuo Itou ,  Kunihiro Tsuzuki

发明人： Mitikatu Naito ,  Kiyotosi Yano ,  Kazuo Itou ,  Kunihiro Tsuzuki

IPC分类号： F16K31/524 ,  F02B3/06 ,  F02D21/08 ,  F02M25/07 ,  G05D16/06 ,  F02M25/06

CPC分类号： F02D21/08 ,  F02M26/56 ,  F02B3/06 ,  Y10S137/907 ,  Y10T137/7793 ,  Y10T137/87756

摘要： A vacuum modulating chamber of a vacuum control valve is communicated with a diaphragm chamber of a EGR valve for controlling an amount of exhaust gas to be recirculated into combustion chambers of an engine, so that a modulated negative pressure is applied thereto. The chamber is provided with a diaphragm deflected responding to the negative pressure in the chamber. The vacuum control valve is further provided with a cam member and a spring which urges the diaphragm in one direction so as to change a value at which the pressure in the vacuum modulating chamber is controlled. A push rod is movably held by a cam follower and another spring is provided for urging the push rod in the above direction. The spring force of the other spring is applied to the diaphragm, when a rotational angle of the cam member exceeds a predetermined angle, so that the negative pressure is changed rapidly.

摘要翻译： 真空控制阀的真空调节室与EGR阀的隔膜室连通，用于控制再循环到发动机的燃烧室中的废气量，从而向其施加调节的负压。 腔室设有响应于腔室中的负压而偏转的隔膜。 真空控制阀还设置有凸轮构件和弹簧，该凸轮构件和弹簧在一个方向上推动隔膜，以便改变控制真空调节室中的压力的​​值。 推杆由凸轮从动件可移动地保持，并且设置另一弹簧用于沿上述方向推动推杆。 当凸轮构件的旋转角度超过预定角度时，另一个弹簧的弹簧力被施加到隔膜，使得负压迅速变化。