公开(公告)号：US20100326383A1

公开(公告)日：2010-12-30

申请号：US12744086

申请日：2008-11-04

申请人： Jochen Auchter ,  Andreas Hempfling

发明人： Jochen Auchter ,  Andreas Hempfling

IPC分类号： F01L1/34

CPC分类号： F01L1/34 ,  F01L1/267 ,  F01L1/3442 ,  F01L13/0005 ,  F01L13/0015 ,  F01L2001/34446 ,  F15B1/024 ,  F15B15/12

摘要： An apparatus for variably adjusting control times of gas exchange valves in an internal combustion engine. The apparatus has a driving element, an output element, at least one pressure chamber, a pressurized medium supply device, and at least one pressure accumulator. The supply device allows pressurized medium to be fed to or discharged from the pressure chamber. A phase angle of the output element relative to the input element can be changed by feeding or discharging pressurized medium to or from the pressure chamber. The pressure accumulator encompasses a movable element that has a first pressure surface which partially delimits a storage space. The storage space is or can be connected to the supply device. An energy store applies a force to the movable element in the direction of an initial position. The movable element can be moved against the force of the energy store by pressurizing the storage space.

摘要翻译： 一种用于可变地调节内燃机中的气体交换阀的控制时间的装置。 该装置具有驱动元件，输出元件，至少一个压力室，加压介质供应装置和至少一个压力蓄能器。 供应装置允许加压介质被供给到压力室或从压力室排出。 输出元件相对于输入元件的相位角可以通过将加压介质送入或从压力室排出来改变。 压力储存器包括具有部分地限定存储空间的第一压力表面的可移动元件。 存储空间已经或可以连接到供应设备。 能量储存器在初始位置的方向上向可移动元件施加力。 通过对存储空间进行加压，可移动元件可抵抗能量存储器的力移动。

公开(公告)号：US20100313834A1

公开(公告)日：2010-12-16

申请号：US12744093

申请日：2008-11-04

申请人： Jochen Auchter ,  Andreas Hempfling

发明人： Jochen Auchter ,  Andreas Hempfling

IPC分类号： F01L1/34

CPC分类号： F01L1/34 ,  F01L1/3442 ,  F01L2001/34446 ,  F15B1/024 ,  F15B15/12

摘要： An apparatus for variably adjusting the control times of gas exchange valves in an internal combustion engine. The apparatus has a driving element, an output element, at least one pressure chamber, a pressurized medium supply device, and at least one pressure accumulator. The pressurized medium supply device allows pressurized medium to be fed to or discharged from the at least one pressure chamber. A phase angle of the output element relative to the driving element can be changed by supplying or discharging pressurized medium to or from the pressure chamber. The pressure accumulator encompasses a movable element that has a first pressure surface which partially delimits a storage space. The storage space is connected to the pressurized medium supply device. The movable element can be moved against the force of an energy store by pressurizing the storage space.

摘要翻译： 一种用于可变地调节内燃机中的气体交换阀的控制时间的装置。 该装置具有驱动元件，输出元件，至少一个压力室，加压介质供应装置和至少一个压力蓄能器。 加压介质供应装置允许加压介质被供给到或从所述至少一个压力室排出。 输出元件相对于驱动元件的相位角可以通过向加压室供给或排出加压介质来改变。 压力储存器包括具有部分地限定存储空间的第一压力表面的可移动元件。 存储空间连接到加压介质供应装置。 通过对存储空间进行加压，可移动元件可抵抗能量存储器的力移动。

公开(公告)号：US20100292036A1

公开(公告)日：2010-11-18

申请号：US12864256

申请日：2008-12-09

申请人： Marco Kowalski ,  Roman Kern ,  Andreas Hempfling ,  Sebastian Block

发明人： Marco Kowalski ,  Roman Kern ,  Andreas Hempfling ,  Sebastian Block

IPC分类号： F16H7/08

CPC分类号： F16H7/0836 ,  F16H2007/0817

摘要： A tensioning device for the endless drive in a timing system on a motor vehicle, which has a tensioning piston that can move along a path axis in a housing, within which a pressure chamber is located which houses a working medium which brings about a movement of the tensioning piston in the housing and has a valve seat, connected to the exterior of the tensioning piston by an outlet and accommodating a valve body essentially matching the shape of the valve seat. The valve body is tapered along the axial path axis to the outlet, which allows for a large chamber between the valve body and the valve seat. The path that the working medium, on bleeding gas bubbles from the same, takes from the pressure chamber to the outlet is longer, which increases the hydraulic resistance and restricts and limits emptying of working medium from the tensioning piston.

摘要翻译： 一种用于在机动车辆上的定时系统中的无级驱动的张紧装置，其具有能够沿着壳体中的路径轴线移动的张紧活塞，在该壳体内设置有压力室，所述压力室容纳工作介质， 壳体中的张紧活塞并具有阀座，通过出口连接到张紧活塞的外部，并且容纳基本上与阀座形状匹配的阀体。 阀体沿着轴向路径轴线到出口是锥形的，这允许阀体和阀座之间的大腔室。 工作介质从压力室到出口的渗出气泡的路径较长，这增加了液压阻力，限制了工作介质从张紧活塞中排空。

公开(公告)号：US20080087244A1

公开(公告)日：2008-04-17

申请号：US11904693

申请日：2007-09-28

申请人： Peter Sailer ,  Oliver Schnell ,  Christian Schafer ,  Andreas Hempfling

发明人： Peter Sailer ,  Oliver Schnell ,  Christian Schafer ,  Andreas Hempfling

IPC分类号： F01L1/245

CPC分类号： F01L13/0031 ,  F01L1/24 ,  F01L1/245 ,  F01L2101/00 ,  F01L2101/02

摘要： A hydraulic valve lash adjuster with idle stroke function for a valve train of an internal combustion engine, said hydraulic valve lash adjuster comprising a piston (2, 2′, 2″) that is guided for displacement in a piston housing (4) and elastically supported against said housing (4), said piston (2, 2′, 2″) comprising a low pressure chamber (3) that communicates via an axial opening (7) in a piston bottom (8) with a high pressure chamber (5) defined by the piston housing (4) and the piston (2, 2′, 2″), and further comprising a control valve (9, 9′, 9″, 9′″) acting between said pressure chambers (3, 5), said control valve (9, 9′, 9″, 9′″) comprising a valve closing body (10, 10′, 10″) that can be brought to bear sealingly against a valve seat (15, 15′) that surrounds the axial opening (7) on a piston body undersurface (18) and is received in an element (12, 12′) that limits a closing body stroke (17), and said control valve (9, 9′, 9″, 9′″) further comprising a control valve spring (11) that loads the valve closing body (10, 10′, 10″) with a spring force in opening direction, and an idle stroke being produced during a collapsing movement between the piston (2, 2′, 2″) and the piston housing (4) during which said valve closing body (10, 10′, 10″) is hydraulically loaded in closing direction against the action of the control valve spring (11) by a pressure build-up in the high pressure chamber (5), whereby a retarded pressure build-up can be obtained through a flow control device (23, 23′) arranged on a high pressure chamber-side and comprising a flow control element (24, 24′) and a medium pressure chamber (19) that extends between the flow control element (24, 24′) and the axial opening (7) of the piston (2).

公开(公告)号：US20080022955A1

公开(公告)日：2008-01-31

申请号：US11879904

申请日：2007-07-19

申请人： Peter Sailer ,  Oliver Schnell ,  Christian Schafer ,  Andreas Hempfling

发明人： Peter Sailer ,  Oliver Schnell ,  Christian Schafer ,  Andreas Hempfling

IPC分类号： F01L1/20

CPC分类号： F01L1/24

摘要： A hydraulic valve lash adjuster for a valve train of an internal combustion engine, for example for an automotive vehicle, said hydraulic valve lash adjuster comprising a piston (2) that is guided for displacement in a piston housing (4) and elastically supported against said housing, said piston (2) comprising a low pressure chamber (3) that communicates via an axial opening (26) in a piston bottom (19) with a high pressure chamber (5) defined by the piston housing (4) and the piston (2), and further comprising a control valve (6) acting between said pressure chambers (3, 5), said control valve (6) comprising a valve closing body (7) that can be brought to bear sealingly against a valve seat (24) that surrounds the axial opening (26) on a piston body undersurface (28) and is received in a closing body cap (9) whose cap bottom (21) acts as a stroke limitation of the valve closing body (7), and said control valve (6) further comprising a control valve spring (8) that loads the valve closing body (7) in opening direction, and, during a collapsing movement between the piston (2) and the piston housing (4), said valve closing body (7) being hydraulically loadable in closing direction against the biasing force of the control valve spring (8) by a pressure build-up in the high pressure chamber (5).To improve the valve lash adjuster so that undesired operational fluctuations are reduced, the valve closing body (7) is configured as a needle-shaped, elongate sealing piston whose valve seat-proximate end comprises a plate-shaped sealing surface (10) that cooperates with a correspondingly configured sealing surface (25) of the valve seat (24) and whose valve seat-distal end comprises a surface of application (12) for hydraulic loading, and the valve closing body (7) substantially fills a space volume of the closing body cap (9) surrounding the valve closing body (7).

公开(公告)号：US07640906B2

公开(公告)日：2010-01-05

申请号：US11904693

申请日：2007-09-28

申请人： Peter Sailer ,  Oliver Schnell ,  Christian Schäfer ,  Andreas Hempfling

发明人： Peter Sailer ,  Oliver Schnell ,  Christian Schäfer ,  Andreas Hempfling

IPC分类号： F01L1/20

CPC分类号： F01L13/0031 ,  F01L1/24 ,  F01L1/245 ,  F01L2101/00 ,  F01L2101/02

摘要： A hydraulic valve lash adjuster with idle stroke function for a valve train of an internal combustion engine, said hydraulic valve lash adjuster comprising a piston (2, 2′, 2″) that is guided for displacement in a piston housing (4) and elastically supported against said housing (4), said piston (2, 2′, 2″) comprising a low pressure chamber (3) that communicates via an axial opening (7) in a piston bottom (8) with a high pressure chamber (5) defined by the piston housing (4) and the piston (2, 2′, 2″), and further comprising a control valve (9, 9′, 9″, 9′″) acting between said pressure chambers (3, 5), said control valve (9, 9′, 9″, 9′″) comprising a valve closing body (10, 10′, 10″) that can be brought to bear sealingly against a valve seat (15, 15′) that surrounds the axial opening (7) on a piston body undersurface (18) and is received in an element (12, 12′) that limits a closing body stroke (17), and said control valve (9, 9′, 9″, 9′″) further comprising a control valve spring (11) that loads the valve closing body (10, 10′, 10″) with a spring force in opening direction, and an idle stroke being produced during a collapsing movement between the piston (2, 2′, 2″) and the piston housing (4) during which said valve closing body (10, 10′, 10″) is hydraulically loaded in closing direction against the action of the control valve spring (11) by a pressure build-up in the high pressure chamber (5), whereby a retarded pressure build-up can be obtained through a flow control device (23, 23′) arranged on a high pressure chamber-side and comprising a flow control element (24, 24′) and a medium pressure chamber (19) that extends between the flow control element (24, 24′) and the axial opening (7) of the piston (2).