公开(公告)号：KR1020120107841A

公开(公告)日：2012-10-04

申请号：KR1020117030666

申请日：2010-06-01

Applicant: 젯트에프 프리드리히스하펜 아게

Inventor： 마틴한스-요아힘 ,  프릿쳐안톤

IPC: F16D48/02

CPC classification number: F16D48/0206 ,  F16D2048/0221

Abstract: 본 발명은 시프팅 부재(K1, K2)의 사전 충전을 위한 라인(3) 및 펌프(4)와 유체 기술적으로 연결된 하나 이상의 압력 매체 공급 채널(1, 2)을 포함하는, 유압 작동 가능한 시프팅 부재의 압력 매체 공급 장치에 관한 것이며, 이러한 압력 매체 공급 장치에서는 시프팅 부재와 시프팅 부재 밸브(6, 7) 사이의 압력 매체 공급 채널(1, 2)에 추가의 압력 유지 밸브(9, 9') 또는 귀환 방지 다이어프램이 일체됨으로써, 이러한 압력 매체 공급 채널은 압력 매체 공급 채널(1, 2)의 유출 방향으로 폐쇄 가능하며, 압력 유지 밸브(9, 9')는 시프팅 부재가 비워지거나 압력 매체 공급 장치가 배기될 수 있도록 형성된다.

公开(公告)号：KR1020090042805A

公开(公告)日：2009-04-30

申请号：KR1020097003589

申请日：2007-07-30

Applicant: 젯트에프 프리드리히스하펜 아게

Inventor： 마르틴한스-요아힘 ,  프릿쳐안톤

IPC: F28F27/02 ,  F01M5/00 ,  F01P7/16

CPC classification number: F28F27/02 ,  C08L2201/12 ,  F01M5/007 ,  F01P2070/02 ,  F16H57/0413 ,  F16K31/002 ,  F28D2021/0089 ,  F28F2250/06 ,  F28F2255/04

Abstract: The invention relates to a bypass valve for a cooler connected downstream of a hydraulic unit, comprising a valve housing (2) with connection openings (8, 12, 18) for a connection to the hydraulic unit at one side and to the cooler at the other side, a closure element (22) which is arranged in the valve housing and which closes or opens a bypass, a valve spring (32) which presses the closure element (22) into the closed position, and thermosensitive means which bring about an opening of the closure element (22) at a temperature of the hydraulic fluid below a predefined threshold temperature (approximately 80°C). It is provided according to the invention that the thermosensitive means are formed by the valve spring (32) itself, which valve spring (32) is for this purpose formed from a memory metal alloy, with a transition point which is at the threshold temperature, in such a way that said valve spring (32) exerts no force below said threshold temperature and permits an opening of the closure element (22) under the action of the hydraulic fluid pressure. In this way, separate thermosensitive means, for example a temperature-controlled actuating drive, can be dispensed with.

Abstract translation: 本发明涉及一种用于连接在液压单元下游的冷却器的旁通阀，该旁通阀包括具有连接开口（8,12,18）的阀壳体（2），用于连接到一侧的液压单元和在一侧的冷却器 另一侧，布置在阀壳体中并关闭或打开旁路的封闭元件（22），将封闭元件（22）压入关闭位置的阀弹簧（32）以及带有 在液压流体的温度低于预定阈值温度（大约80℃）下打开封闭元件（22）。 根据本发明，提供热敏装置由阀弹簧（32）本身形成，该阀弹簧（32）为此由存储金属合金形成的阀弹簧（32），其转变点处于阈值温度， 使得所述阀弹簧（32）不施加低于所述阈值温度的力并且允许在液压流体压力的作用下打开所述封闭元件（22）。 以这种方式，可以省略分离的热敏装置，例如温度控制的致动驱动装置。

公开(公告)号：KR1020090074251A

公开(公告)日：2009-07-06

申请号：KR1020097010480

申请日：2007-10-11

Applicant: 젯트에프 프리드리히스하펜 아게

Inventor： 프릿쳐안톤

IPC: F16H61/02 ,  F16H61/06

CPC classification number: F16H61/2807 ,  F16H61/0206 ,  F16H61/688 ,  Y10T477/69395

Abstract: The invention relates to a hydraulic control apparatus of an automated multi-step change-speed gearbox, having a plurality of gear actuating cylinders (Z1-Z4) for engaging and disengaging the gears of the multi-step change-speed gearbox, having at least two pressure-controlled gear regulating valves (GV1-GV3) for controlling the operating pressure in in each case one pressure chamber (D1-D8) of the gear actuating cylinders (Z1-Z4), and having a multiplex arrangement (2, 102) of a plurality of singly switchable pressure-controlled selection valves (WV1-WV3) for assigning the gear regulating valves (GV1-GV3) to in each case one pressure chamber (D1-D8) of the gear actuating cylinders (Z1-Z4). In order to simplify the construction and to make broadening of the functional scope of the control apparatus (1.1, 1.2) possible, there is provision for at least one common pilot control valve (W1-W3) formed as a control valve to be provided for actuating one of the gear regulating valves (GV1-GV3) and at least one of the selection valves (WV1-WV3), wherein the pilot control valve (W1-W3) has a first control pressure range (DeltaP_B1) which contains the switching pressure (P_S) of the at least one selection valve (WV1-WV3) and a second control pressure range (DeltaP_B2) which contains the regulating range (DeltaP_R) of the gear regulating valve (GV1-GV3).

Abstract translation: 本发明涉及一种自动多级变速齿轮箱的液压控制装置，其具有多个齿轮致动缸（Z1-Z4），用于接合和分离多级变速齿轮箱的齿轮，至少具有 两个压力控制齿轮调节阀（GV1-GV3），用于控制齿轮致动缸（Z1-Z4）中的一个压力室（D1-D8）的操作压力，并具有多路复用装置（2,102） 用于将齿轮调节阀（GV1-GV3）分配给齿轮致动缸（Z1-Z4）的一个压力室（D1-D8）的多个可单独切换的压力控制选择阀（WV1-WV3）。 为了简化构造并使控制装置（1.1,1.2）的功能范围变得可能，提供至少一个形成为作为控制阀的公共先导控制阀（W1-W3），用于 驱动齿轮调节阀（GV1-GV3）中的一个和至少一个选择阀（WV1-WV3），其中先导控制阀（W1-W3）具有包含切换压力的第一控制压力范围（ΔP_B1） （WV1-WV3）的第二控制压力范围（ΔP_B）和包含齿轮调节阀（GV1-GV3）的调节范围（DeltaP_R））的第二控制压力范围（ΔP_B2）。