公开(公告)号：US4237842A

公开(公告)日：1980-12-09

申请号：US948560

申请日：1978-10-04

申请人： Takao Fukuhara ,  Yoshio Iwasa

发明人： Takao Fukuhara ,  Yoshio Iwasa

IPC分类号： F02M3/06 ,  F02M3/12 ,  F02M23/08 ,  F02M23/04

CPC分类号： F02M3/12 ,  F02M23/085 ,  F02M3/062 ,  Y02T10/146 ,  Y10T137/7936

摘要： An internal combustion engine is provided with an intake vacuum control device through which the upstream and downstream sides of an intake passageway with respect to a throttle valve are communicable with each other, so that additional air is supplied to the intake passageway downstream of the throttle valve during engine deceleration. The intake vacuum control device is composed of a valve member which is normally biased to be closed by a coil spring which is guided by a cylindrical guide member.

摘要翻译： 内燃机设置有进气真空控制装置，进气通道相对于节流阀的上游侧和下游侧通过该进气真空控制装置可彼此连通，使得附加空气供应到节流阀下游的进气通道 在发动机减速时。 进气真空控制装置由阀构件构成，该阀构件通常由被圆柱形引导构件引导的螺旋弹簧偏压关闭。

公开(公告)号：US4122809A

公开(公告)日：1978-10-31

申请号：US736231

申请日：1976-10-27

申请人： Yoshio Iwasa

发明人： Yoshio Iwasa

IPC分类号： F02D41/14 ,  F02M7/24 ,  F02B33/00 ,  F02B75/10 ,  F02M7/00

CPC分类号： F02D41/1488 ,  F02M7/24 ,  Y10S261/74

摘要： An internal combustion engine is equipped with an air-fuel ratio controlling device which monitors at least one exhaust gas component and adjusts the air-fuel ratio according to detection of the component. It is, however, desirable to operate the device only when the engine is warmed up. Accordingly, a system is provided to prevent control by the device until the engine is warmed up. The system includes thermal switches which monitor intake air temperature and coolant temperature. These switches close at selected temperatures so as to allow the air-fuel ratio device to control the air-fuel ratio. Prior to closing the switches, an enriched air-fuel ratio, necessary for starting and running cold engines, is provided.

摘要翻译： 内燃机配备有空燃比控制装置，其监视至少一个排气成分，并且根据部件的检测来调节空燃比。 然而，仅当发动机被加热时才操作该装置是理想的。 因此，提供一种系统以防止装置的控制，直到发动机被加热。 该系统包括监测进气温度和冷却液温度的热开关。 这些开关在所选择的温度下关闭，以使空燃比装置控制空燃比。 在关闭开关之前，提供了启动和运行冷发动机所需的富集空燃比。

公开(公告)号：US4120214A

公开(公告)日：1978-10-17

申请号：US718967

申请日：1976-08-30

申请人： Yoshio Toda ,  Yoshio Iwasa

发明人： Yoshio Toda ,  Yoshio Iwasa

IPC分类号： F02M25/07 ,  F02M25/06 ,  F02B33/00

CPC分类号： F02M26/57 ,  F02M2026/004 ,  Y10T477/653 ,  Y10T477/663 ,  Y10T477/679

摘要： An EGR control valve is closed by admitting atmospheric air into a vacuum chamber of an actuator thereof or by reducing or stopping the admission of intake passageway vacuum into the vacuum chamber when a transmission of the motor vehicle is in a top gear and a higher gear, when the temperature of the engine is below a predetermined value, and when the transmission is in a top gear and a higher gear and the degree of opening of the throttle valve is above a predetermined value.

摘要翻译： 通过将大气进入到其致动器的真空室中，或者当机动车辆的变速器处于顶部齿轮和较高档位时，通过减少或停止进入通道真空进入真空室来关闭EGR控制阀， 当发动机的温度低于预定值时，并且当变速器处于顶齿轮和较高档位时，节流阀的开度大于预定值。

公开(公告)号：US4086891A

公开(公告)日：1978-05-02

申请号：US674768

申请日：1976-04-08

申请人： Yoshio Iwasa ,  Yoji Ito

发明人： Yoshio Iwasa ,  Yoji Ito

IPC分类号： F02M31/08 ,  F01N3/26 ,  F02M31/087 ,  F02M31/00

CPC分类号： F01N3/26 ,  F02M31/087 ,  Y02T10/126

摘要： An intake system comprises an intake manifold having a heat riser and a plurality of manifold passages extending from the heat riser to cylinders of an engine. The heat riser is heated by exhaust gases from the engine and a cooling liquid jacket conducts the engine cooling liquid around the intake manifold.

摘要翻译： 进气系统包括具有热提升管和从发热器延伸到发动机气缸的多个歧管通道的进气歧管。 热提升管被来自发动机的废气加热，并且冷却液体护套将进气歧管周围的发动机冷却液引导。

公开(公告)号：US4083184A

公开(公告)日：1978-04-11

申请号：US711522

申请日：1976-08-04

申请人： Takashi Ushijima ,  Yoshio Iwasa

发明人： Takashi Ushijima ,  Yoshio Iwasa

IPC分类号： F02B33/30 ,  F01N3/30 ,  F01N3/34 ,  F16K15/00 ,  F16K15/16 ,  F01N3/10

CPC分类号： F01N3/30 ,  Y02T10/20 ,  Y10S55/28 ,  Y10T137/7857 ,  Y10T137/7892

摘要： A reed valve device having two reeds capable of selectively closing and opening the corresponding openings formed in the device is snugly fitted in a casing through an elastomeric sealing member without using any other connecting means. The casing communicates with an exhaust conduit system of an internal combustion engine so that the reed valve device functions to intermittently admit air into the exhaust conduit system by the pulsations of the exhaust gas under pressure passing through the exhaust conduit system.