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公开(公告)号：EP0291140A2
公开(公告)日：1988-11-17
申请号：EP88200972.3
申请日：1988-05-16
发明人： Ichiryu, Ken , Kanai, Takashi , Ochiai, Masami , Nozawa, Yuusaku , Kato, Hideyo
IPC分类号： G05D7/06 , G05D7/03 , F15B13/042
CPC分类号： F15B13/0405 , G05D16/2093 , Y10T137/7759 , Y10T137/7761
摘要： A flow control valve apparatus includes a housing (5;5A) including a main fluid passage (4) having an inlet port (2) and an outlet port (3); a main valve (6;81;174) disposed between the inlet port and the outlet port for allowing or shutting off communication between the inlet port and the outlet port; a backpressure chamber (11) formed between an inner wall of the housing (5;5A,5B) and a rear portion (10) of a valve member (8;82) of the main valve, the backpressure chamber communicating with the inlet port through an orifice (12); an auxiliary passage (13;92,94) for placing the backpressure chamber in communication with the outlet port; and a pilot valve (14;61;96;101;121;141;161;177;190;191;193) for actuating the main valve member by controlling the opening and closing of the auxiliary passage and varying the fluid pressure in the backpressure chamber. A differential pressure generating means (30;64;71;131;146;171) is disposed in the main fluid passage (4) for generating differential pressures that correspond to the flow rate in the main fluid passage. The differential generating means (30;64;71;131;146;171) includes a displacement member (32;72;132;147;172) disposed for movement in the direction of fluid flow in the main fluid passage and spring means (33;182) for urging the displacement member in the direction opposite to the direction of fluid flow, and the displacement member cooperates with a wall surface (34;65) of the main fluid passage to define a fluid passage having an opening area which increases with an increase in the stroke of travel of the displacement member.
摘要翻译： 流量控制阀装置包括：壳体，包括具有入口端口和出口端口的主流体通道; 主阀（6;），设置在入口和出口之间，用于允许或关闭入口和出口之间的连通; 形成在壳体（5）的内壁和主阀的阀构件（8）的后部（10）之间的背压室（11），背压室通过孔口与入口连通 12）; 用于将背压室与出口连通的辅助通道（13;）; 以及用于通过控制辅助通道的打开和关闭并改变背压室中的流体压力来致动主阀构件的先导阀（14;）。 差压生成装置（30;）设置在主流体通道（4）中，用于产生对应于主流体通道中的流量的差压。 差速发生装置（30;）包括位移构件（32;），其设置用于沿主流体通道中的流体流动方向运动;以及弹簧装置（33;），用于沿与方向相反的方向推动位移构件 流体流动，并且位移构件与主流体通道的壁表面（34;）协作以限定具有随着位移构件的行进行程的增加而增加的开口面积的流体通道。
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公开(公告)号：EP0291140B1
公开(公告)日：1995-03-15
申请号：EP88200972.3
申请日：1988-05-16
发明人： Ichiryu, Ken , Kanai, Takashi , Ochiai, Masami , Nozawa, Yuusaku , Kato, Hideyo
IPC分类号： G05D7/06 , G05D7/03 , F15B13/042
CPC分类号： F15B13/0405 , G05D16/2093 , Y10T137/7759 , Y10T137/7761
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公开(公告)号：EP0291140A3
公开(公告)日：1990-09-19
申请号：EP88200972.3
申请日：1988-05-16
发明人： Ichiryu, Ken , Kanai, Takashi , Ochiai, Masami , Nozawa, Yuusaku , Kato, Hideyo
IPC分类号： G05D7/06 , G05D7/03 , F15B13/042
CPC分类号： F15B13/0405 , G05D16/2093 , Y10T137/7759 , Y10T137/7761
摘要： A flow control valve apparatus includes a housing (5;5A) including a main fluid passage (4) having an inlet port (2) and an outlet port (3); a main valve (6;81;174) disposed between the inlet port and the outlet port for allowing or shutting off communication between the inlet port and the outlet port; a backpressure chamber (11) formed between an inner wall of the housing (5;5A,5B) and a rear portion (10) of a valve member (8;82) of the main valve, the backpressure chamber communicating with the inlet port through an orifice (12); an auxiliary passage (13;92,94) for placing the backpressure chamber in communication with the outlet port; and a pilot valve (14;61;96;101;121;141;161;177;190;191;193) for actuating the main valve member by controlling the opening and closing of the auxiliary passage and varying the fluid pressure in the backpressure chamber. A differential pressure generating means (30;64;71;131;146;171) is disposed in the main fluid passage (4) for generating differential pressures that correspond to the flow rate in the main fluid passage. The differential generating means (30;64;71;131;146;171) includes a displacement member (32;72;132;147;172) disposed for movement in the direction of fluid flow in the main fluid passage and spring means (33;182) for urging the displacement member in the direction opposite to the direction of fluid flow, and the displacement member cooperates with a wall surface (34;65) of the main fluid passage to define a fluid passage having an opening area which increases with an increase in the stroke of travel of the displacement member.
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