公开(公告)号：US4094284A

公开(公告)日：1978-06-13

申请号：US624494

申请日：1975-10-21

申请人： William Fred Gesell

发明人： William Fred Gesell

IPC分类号： F02M25/07 ,  F15C1/10 ,  F15C1/14 ,  F02M25/06

CPC分类号： F15C1/14 ,  F02M26/14 ,  F02M26/39 ,  F02M26/56 ,  F02M26/58 ,  F02M26/61 ,  F15C1/10 ,  F02M2026/0025 ,  Y10T137/2273

摘要： Exhaust gas is recirculated to an intake manifold of an engine by a shut-off valve and a fluidic amplifier for modulation in accordance with different engine parameters. The shut-off valve is normally biased to a closed position and it is opened to permit recirculation in response to a signal received from a fluidic NOR gate which operates in accordance with position of a carburetor throttle, engine speed and engine temperature. The fluidic amplifier includes a power jet chamber receiving a supply of exhaust and a vent chamber in fluid communication with a venturi disposed in the exhaust manifold, a receiver chamber and a pair of control jets. One of the control jets may be in fluid communication with the intake manifold or with a carburetor venturi. The other control jet may be open to atmospheric pressure compensated for the effect of changes in air density or engine speed.

摘要翻译： 废气通过截止阀和流体放大器再循环到发动机的进气歧管，用于根据不同的发动机参数进行调节。 截止阀通常被偏置到关闭位置，并且其被打开以允许响应于从根据化油器节流阀的位置，发动机转速和发动机温度操作的流体NOR门接收到的信号来再循环。 流体放大器包括接收排气供应的动力喷射室和与布置在排气歧管中的文氏管流体连通的通气室，接收器室和一对控制喷嘴。 控制射流中的一个可以与进气歧管或化油器文氏管流体连通。 另一个控制喷气机可以打开到大气压，补偿空气密度或发动机转速变化的影响。