公开(公告)号：US09574583B2

公开(公告)日：2017-02-21

申请号：US13870217

申请日：2013-04-25

Applicant: Magneti Marelli S.p.A.

Inventor： Stefano Giorgini ,  Andrea Bersani ,  Luca Bovina

IPC: F15B1/24 ,  F15B15/00 ,  F15B1/02 ,  F16H61/00

CPC classification number: F15B15/00 ,  F15B1/024 ,  F15B1/24 ,  F15B2201/205 ,  F15B2201/312 ,  F15B2201/60 ,  F16H2061/0034

Abstract: A hydraulic servo-control of a servo-controlled gearbox provided with a hydraulic accumulator, having an outer housing and a piston that is slidable axially inside the outer housing and adapted to define a first variable-volume chamber for a gaseous material and a second variable-volume chamber for a control fluid under pressure; and at least one limit stop arranged at an open end of the outer housing which serve as a lower limit stop element; wherein the outer housing is provided with an upper limit stop element, which acts to limit the pressure value inside the first variable-volume chamber within a predetermined safety range.

Abstract translation: 具有液压蓄能器的伺服控制齿轮箱的液压伺服控制器，具有外壳体和活塞，所述外壳体和活塞可在外壳体内轴向滑动并且适于限定用于气体材料的第一可变容积室和第二变量 用于压力下的控制流体的容积室; 以及设置在所述外壳的开口端处的至少一个限位挡块，其用作下限止挡元件; 其特征在于，所述外壳具有上限停止元件，其作用是将所述第一可变容积室内的压力值限制在规定的安全范围内。

公开(公告)号：US20130213029A1

公开(公告)日：2013-08-22

申请号：US13773082

申请日：2013-02-21

Applicant: Magneti Marelli S.p.A.

Inventor： Stefano Giorgini ,  Andrea Bersani ,  Luca Bovina

IPC: F15B1/027

CPC classification number: F15B1/027 ,  F15B2201/205 ,  F15B2201/312 ,  F15B2201/60 ,  F16H61/30 ,  F16H2061/0034 ,  F16H2061/305

Abstract: A hydraulic servo-control of a servo-controlled gearbox comprises hydraulic actuators defining chambers, a storing tank containing control fluid used by the actuators at room pressure, a hydraulic accumulator containing control fluid under pressure, a motor pump drawing the fluid from the tank and feeding it under pressure to the accumulator, and solenoid valves selectively connecting the chambers to the tank and accumulator. The accumulator includes an outer housing defining an inner cylindrical surface defining a first diameter, a piston arranged and axially slidable and mobile inside the housing and defining there a first variable-volume chamber for a gas and second variable-volume chamber for the fluid under pressure, and a limit stopper arranged at an open end of the housing, acting as a striker for the piston, and having an annular circlip defining an opening and overall second diameter approximating by excess the first diameter of the surface of the housing.

Abstract translation: 伺服控制齿轮箱的液压伺服控制装置包括液压致动器限定腔室，储存罐，容纳由室内致动器使用的控制流体;液压蓄能器，其容纳压力下的控制流体;电动泵，其从罐中抽取流体; 在压力下将其供给到蓄能器，并且电磁阀选择性地将室连接到罐和蓄能器。 蓄能器包括外壳，其限定限定第一直径的内圆柱形表面，活塞布置并且在壳体内部可轴向滑动和移动，并且在其中限定用于气体的第一可变容积室和用于压力下的流体的第二可变容积室 以及设置在所述壳体的开口端处的限位挡板，用作所述活塞的撞针，并且具有限定开口的环形卡环，并且具有通过所述壳体的所述表面的第一直径过大的总体第二直径。

公开(公告)号：US09574576B2

公开(公告)日：2017-02-21

申请号：US13773082

申请日：2013-02-21

Applicant: Magneti Marelli S.p.A.

Inventor： Stefano Giorgini ,  Andrea Bersani ,  Luca Bovina

IPC: F15B1/02 ,  F15B1/027 ,  F16H61/30 ,  F16H61/00

CPC classification number: F15B1/027 ,  F15B2201/205 ,  F15B2201/312 ,  F15B2201/60 ,  F16H61/30 ,  F16H2061/0034 ,  F16H2061/305

Abstract: A hydraulic servo-control of a servo-controlled gearbox comprises hydraulic actuators defining chambers, a storing tank containing control fluid used by the actuators at room pressure, a hydraulic accumulator containing control fluid under pressure, a motor pump drawing the fluid from the tank and feeding it under pressure to the accumulator, and solenoid valves selectively connecting the chambers to the tank and accumulator. The accumulator includes an outer housing defining an inner cylindrical surface defining a first diameter, a piston arranged and axially slidable and mobile inside the housing and defining there a first variable-volume chamber for a gas and second variable-volume chamber for the fluid under pressure, and a limit stopper arranged at an open end of the housing, acting as a striker for the piston, and having an annular circlip defining an opening and overall second diameter approximating by excess the first diameter of the surface of the housing.

Abstract translation: 伺服控制齿轮箱的液压伺服控制装置包括液压致动器限定腔室，储存罐，容纳由室内致动器使用的控制流体;液压蓄能器，其容纳压力下的控制流体;电动泵，其从罐中抽取流体; 在压力下将其供给到蓄能器，并且电磁阀选择性地将室连接到罐和蓄能器。 蓄能器包括外壳，其限定限定第一直径的内圆柱形表面，活塞布置并且在壳体内部可轴向滑动和移动，并且在其中限定用于气体的第一可变容积室和用于压力下的流体的第二可变容积室 以及设置在所述壳体的开口端处的限位挡板，用作所述活塞的撞针，并且具有限定开口的环形卡环，并且具有通过所述壳体的所述表面的第一直径过大的总体第二直径。

公开(公告)号：US20140053542A1

公开(公告)日：2014-02-27

申请号：US13773115

申请日：2013-02-21

Applicant: Magneti Marelli S.p.A.

Inventor： Stefano Giorgini ,  Andrea Bersani ,  Luca Bovina

IPC: F15B1/02

CPC classification number: F15B1/02 ,  F15B1/24 ,  F15B2201/205 ,  F15B2201/312 ,  F15B2201/60 ,  F16H61/30 ,  F16H2061/0034 ,  F16H2061/305

Abstract: A hydraulic servo-control of a servo-controlled gearbox comprises hydraulic actuators defining chambers, a storing tank containing control fluid used by the actuators at room pressure, a hydraulic accumulator containing control fluid under pressure, a motor pump drawing the fluid from the tank and feeding it under pressure to the accumulator and solenoid valves selectively connecting the chambers to the tank and accumulator. The accumulator includes an outer housing, a piston arranged and axially slidable and mobile inside the housing and defining there a first variable-volume chamber for a gas and second variable-volume chamber for the fluid under pressure, and a limit stopper arranged at an open end of the housing, acting as a striker for the piston, and having an annular circlip and a perforated plate operatively interposed between the circlip and piston.

Abstract translation: 伺服控制齿轮箱的液压伺服控制装置包括液压致动器限定腔室，储存罐，容纳由室内致动器使用的控制流体;液压蓄能器，其容纳压力下的控制流体;电动泵，其从罐中抽取流体; 在压力下将其供给到蓄电池和电磁阀，其选择性地将室连接到罐和蓄电池。 蓄能器包括外壳体，活塞在壳体内部布置并可轴向滑动并移动，并且在其上限定用于气体的第一可变容积室和用于压力下的流体的第二可变容积室，以及设置在开口处的限位塞子 作为活塞的撞击器，并且具有可操作地插入在簧环和活塞之间的环形卡簧和多孔板。

公开(公告)号：US20130312597A1

公开(公告)日：2013-11-28

申请号：US13870217

申请日：2013-04-25

Applicant: MAGNETI MARELLI S.P.A.

Inventor： Stefano Giorgini ,  Andrea Bersani ,  Luca Bovina

IPC: F15B15/00

CPC classification number: F15B15/00 ,  F15B1/024 ,  F15B1/24 ,  F15B2201/205 ,  F15B2201/312 ,  F15B2201/60 ,  F16H2061/0034

Abstract: A hydraulic servo-control of a servo-controlled gearbox provided with a hydraulic accumulator, having an outer housing and a piston that is slidable axially inside the outer housing and adapted to define a first variable-volume chamber for a gaseous material and a second variable-volume chamber for a control fluid under pressure; and at least one limit stop arranged at an open end of the outer housing which serve as a lower limit stop element; wherein the outer housing is provided with an upper limit stop element, which acts to limit the pressure value inside the first variable-volume chamber within a predetermined safety range.

Abstract translation: 具有液压蓄能器的伺服控制齿轮箱的液压伺服控制器，具有外壳体和活塞，所述外壳体和活塞可在外壳体内轴向滑动并且适于限定用于气体材料的第一可变容积室和第二变量 用于压力下的控制流体的容积室; 以及设置在所述外壳的开口端处的至少一个限位挡块，其用作下限止挡元件; 其特征在于，所述外壳具有上限停止元件，其作用是将所述第一可变容积室内的压力值限制在规定的安全范围内。