公开(公告)号：US07401584B2

公开(公告)日：2008-07-22

申请号：US11631280

申请日：2005-06-15

Applicant: Donald Haefner

Inventor： Donald Haefner

IPC: F01L1/14

CPC classification number: F01L1/143 ,  F01L1/14 ,  F01L13/0005 ,  F01L13/0031

Abstract: A switchable cam follower (1) is proposed which serves to transmit a cam stroke in a variable manner from a cam to valve timing mechanism elements of an internal combustion engine. The cam follower (1) comprises substantially a cylindrical inner part (5) and a cylindrical outer part (2) which can be displaced into one another in the direction of their longitudinal axes and can be locked and unlocked in a relative position by means of coupling means (10) which are preferably actuated by pressure-modulated hydraulic medium, and also comprises at least one spring means (7) which is arranged between the inner part (5) and the outer part (2). The inner part (5) has a run-on surface (16) for the cam at one end side (17) and is radially guided in an inner wall (4) of the outer part (2) by way of an outer circumferential surface (6). The outer part (2) has an outer cylindrical circumferential surface (3), by way of which the cam follower (1) is guided in a housing hole of the internal combustion engine in a longitudinally movable manner, and an outer end face (25) facing away from the cam, as a contact face for valve timing mechanism elements which are operatively connected to the cam follower (1). Here, the outer circumferential surface (3) of the outer part (2) is to have substantially identical diameters in the region of the end face (25) which faces the valve timing mechanism element and in the region of an opening (26) which is oriented toward the inner part (5). At the same time, the spring means (7) is to be arranged within the outer part (2).

Abstract translation: 提出了一种可切换的凸轮从动件（1），其用于从内燃机的凸轮到气门正时机构元件以可变的方式传递凸轮行程。 凸轮从动件（1）包括基本上圆柱形的内部部分（5）和圆柱形的外部部分（2），该圆柱形的内部部分（2）可沿它们的纵向方向彼此移位，并且可以通过相对位置被锁定和解锁 优选地由压力调节液压介质致动的联接装置（10），并且还包括布置在内部部分（5）和外部部分（2）之间的至少一个弹簧装置（7）。 内部部分（5）具有用于一端侧（17）处的凸轮的延伸表面（16），并且通过外周面（2）的外周面（4）的内壁 （6）。 外部部分（2）具有外圆柱形周向表面（3），凸轮从动件（1）以可纵向移动的方式被引导到内燃机的容纳孔中，外端面（25 ）作为可操作地连接到凸轮从动件（1）的气门正时机构元件的接触面。 这里，外部部件（2）的外周面（3）在面对阀门正时机构元件的端面（25）的区域内和在开口（26）的区域内具有基本相同的直径 朝向内部部分（5）。 同时，弹簧装置（7）将被布置在外部部分（2）内。

公开(公告)号：US20060118074A1

公开(公告)日：2006-06-08

申请号：US11293705

申请日：2005-12-02

Applicant: Donald Haefner

Inventor： Donald Haefner

IPC: F01L1/14

CPC classification number: F01L13/0031 ,  F01L1/146 ,  F01L1/245 ,  F01L1/25 ,  F01L13/0005 ,  F01L13/0015 ,  F01L2105/00

Abstract: A variable cam follower (1) is provided for changeable transmission of a lifting movement of a cam to valve train elements allocated to the cam follower (1) in an internal combustion engine. The cam follower (1) includes a hydraulic force transmission device (19) with a variable length pressure space (18), which is bounded by a hollow cylindrical recess (15) of a first cam follower part (3) and by a rod (16) guided in the hollow cylindrical recess (15). The rod is part of a second cam follower part (9) that can move telescopically relative to the first cam follower part (3). The pressure space (18) is closable by a slide (21a, 21b) arranged within the cam follower (1) and acted upon by an adjustable control pressure (p), wherein an opening (23), which extends from the pressure space (18) and opens into a channel (20a, 20b), in which the slide (21a, 21b) runs, is formed in a base (13) of the hollow cylindrical recess (15).

Abstract translation: 可变凸轮从动件（1）用于可变传动凸轮到分配给内燃机中的凸轮从动件（1）的气门机构元件的提升运动。 凸轮从动件（1）包括具有可变长度压力空间（18）的液压力传递装置（19），其由第一凸轮从动件部分（3）的中空圆柱形凹部（15）和杆（ 16）在中空圆柱形凹部（15）中引导。 杆是第二凸轮从动件部分（9）的一部分，其可相对于第一凸轮从动件部件（3）可伸缩地移动。 压力空间（18）可通过布置在凸轮从动件（1）内的滑块（21a，21b）来关闭，并通过可调节的控制压力（p）起作用，其中开口（23）从压力 空间（18）并且在所述中空圆柱形凹部（15）的基部（13）中形成在所述滑动件（21a，21b）中延伸的通道（20a，20b）中。

公开(公告)号：US20060016410A1

公开(公告)日：2006-01-26

申请号：US11185501

申请日：2005-07-20

Applicant: Donald Haefner

Inventor： Donald Haefner

IPC: F01L1/14

CPC classification number: F01L1/24 ,  F01L2103/00 ,  Y10T74/2107

Abstract: The invention relates to a hydraulic valve-lash-adjusting element (HVA) for the valve train of an internal combustion engine, which is characterized by the following features: a housing (1) has a blind bore (2) in which a piston (3) is guided with sealing clearance and is in pressure contact with a valve-actuating element (6) and its cam; the piston (3), together with the blind bore (2), defines a high-pressure space (4) while a low-pressure space (5) is located above the piston (3); the pressure spaces (4, 5) are connected by at least one central axial bore in the piston (3), this axial bore being controlled by a control valve arranged in the piston (3). One possibility of providing a control valve which does not require a control valve spring is for the control valve to be designed as an exchange valve (11), with a valve body (12) which is guided in a smooth-running manner in the interior of the piston (3), serves to control an upper and a lower central axial bore (14, 15) and the closing movement of which is the relative movement of the piston (3) in relation to the valve body (12), which is virtually at a standstill because of its mass moment of inertia.

Abstract translation: 本发明涉及一种用于内燃机的气门机构的液压阀 - 间隙调节元件（HVA），其特征在于具有以下特征：壳体（1）具有盲孔（2），活塞 3）被密封间隙引导并且与阀致动元件（6）及其凸轮压力接触; 活塞（3）与盲孔（2）一起限定高压空间（4），而低压空间（5）位于活塞（3）上方; 压力空间（4,5）通过活塞（3）中的至少一个中心轴向孔连接，该轴向孔由布置在活塞（3）中的控制阀控制。 提供不需要控制阀弹簧的控制阀的一种可能性是控制阀被设计为更换阀（11），阀体（12）在内部以平稳的方式被引导 活塞（3）的上部和下部中心轴向孔（14,15）的作用是控制活塞（3）相对于阀体（12）的相对运动，其中闭合运动是活塞（3）相对于阀体（12）的相对运动， 由于其惯性矩的大小，实际上处于停滞状态。

公开(公告)号：US07721696B2

公开(公告)日：2010-05-25

申请号：US11881368

申请日：2007-07-26

Applicant: Matthew Evans ,  Debora Manther ,  Donald Haefner ,  Richard Best

Inventor： Matthew Evans ,  Debora Manther ,  Donald Haefner ,  Richard Best

IPC: F01L1/18

CPC classification number: F01L1/185 ,  F01L2105/00 ,  F01L2105/02 ,  Y10T74/2107

Abstract: Proposed is a cam follower (1) for a valve drive of an internal combustion engine, having a roller (3), which is rotatably mounted on a journal (2), as a cam thrust face, which journal (2) runs with its outer casing (4) in a respective bore (5, 6) of a first and second guide wall (7, 8) of the cam follower (1), between which guide walls (7, 8) the roller (3) is held, which outer casing (4) is composed of a first and a second section (9, 10), which first section (9) intrinsically has a greater diameter than the second section (10), wherein the journal (2) has an axial travel limitation in one direction by means of its collar (11) which is situated between the sections (9, 10), and in the other direction by means of a radially projecting element such as a securing ring (12), which collar (11) and which securing ring (12) abut against one of the guide walls (7, 8).

Abstract translation: 提出了一种用于内燃机的阀驱动的凸轮从动件（1），其具有可旋转地安装在轴颈（2）上的作为凸轮推动面的辊（3），该轴颈（2）以其轴颈 外壳（4）位于凸轮从动件（1）的第一和第二引导壁（7,8）的相应的孔（5,6）中，其间保持有辊（3）的引导壁（7,8） ，所述外壳（4）由第一和第二部分（9,10）组成，所述第一部分（9）本身具有比所述第二部分（10）更大的直径，其中所述轴颈（2）具有轴向 通过其位于两个部分（9,10）之间的套环（11），并且通过诸如固定环（12）的径向突出的元件在另一个方向上在一个方向上行进限制，该套环（11） ），并且所述固定环（12）抵靠所述导向壁（7,8）之一。

公开(公告)号：US5161504A

公开(公告)日：1992-11-10

申请号：US736659

申请日：1991-07-26

Applicant: Philip Guest, Jr. ,  Donald Haefner ,  Richard Neuman ,  David Preston

Inventor： Philip Guest, Jr. ,  Donald Haefner ,  Richard Neuman ,  David Preston

IPC: B60K28/16 ,  B60K31/02 ,  F02D11/10

CPC classification number: F02D11/10 ,  B60K28/16 ,  B60K31/02 ,  F02D11/107 ,  F02D2011/103

Abstract: A dual mode electrically operated servo-actuator with a motorized speed reducer rotating a pair of spaced discs each having a pair of common spiral cam tracks. A sliding carrier block disposed between the discs has cam followers separately engaging the track. A bell crank is pivoted on the carrier block for attachment to a load function. In the rotary mid-position, the carrier block is centered and the servo motor is not used to enable a fixed position of the bell crank pivot. In a first mode function the motor is driven to rotate the cam for modulation about positions between the mid-position and fully clockwise position. In a second mode function the motor is driven to rotate the cam for modulation about positions between the mid-position and the fully counter-clockwise position. In a throttle actuator application the first mode is cruise control and the second mode is traction control, with the mid-position comprising normal driver operation of the throttle.

Abstract translation: 具有电动减速器的双模式电动伺服致动器，其旋转一对间隔开的盘，每个盘具有一对共同的螺旋形凸轮轨道。 设置在盘之间的滑动承载块具有分别与轨道接合的凸轮从动件。 钟形曲柄枢转在承载块上以附接到负载功能。 在旋转中间位置，承载块居中，伺服电机不用于使能曲柄枢轴的固定位置。 在第一模式功能中，马达被驱动以旋转凸轮以便调节中间位置和完全顺时针位置之间的位置。 在第二模式功能中，马达被驱动以转动凸轮以便调节中间位置和完全逆时针位置之间的位置。 在节气门执行器应用中，第一模式是巡航控制，第二模式是牵引力控制，中间位置包括油门的正常驾驶员操作。

公开(公告)号：US07380531B2

公开(公告)日：2008-06-03

申请号：US11394932

申请日：2006-03-31

Applicant: Donald Haefner ,  Florin Bugescu

Inventor： Donald Haefner ,  Florin Bugescu

IPC: F01L1/14

CPC classification number: F01L13/0063 ,  F01L1/14 ,  F01L1/146 ,  F01L1/24 ,  F01L1/245 ,  F01L1/46 ,  F01L13/0015 ,  F01L13/0021 ,  F01L13/0031 ,  F01L2105/00 ,  F01L2107/00 ,  Y10T29/49247 ,  Y10T29/49304

Abstract: A variable valve drive for changing control timing of cam-actuated gas-exchange valves of an internal combustion engine is provided, with a tappet (6a, 6b, 6c), which, with convex cam engaging contour (5), engages a cam (4a, 4b, 4c) of a camshaft (3a, 3b, 3c) and which is guided so that it can move in the longitudinal direction in a rotatable tappet guide (7a, 7b, 7c), whose rotational angle (9) is adjustable for changing the control timing. In this way, the tappet guide (7a, 7b, 7c) can rotate about a rotational axis (8) parallel to a longitudinal axis (2) of the camshaft (3a, 3b, 3c).

Abstract translation: 提供了一种用于改变内燃机的凸轮致动气体交换阀的控制时间的可变气门驱动器，其具有凸起凸轮接合轮廓（5）接合的挺杆（6a，6b，6c） 凸轮轴（3a，3b，3c）的凸轮（4a，4b，4c），其被引导为能够在可旋转的挺杆导向件（7a，7b）中沿纵向移动， 7c），其旋转角度（9）可调节以改变控制时间。 以这种方式，挺杆引导件（7a，7b，7b）可以围绕平行于凸轮轴（3a，3b，3c）的纵向轴线（2）的旋转轴线（8）旋转。

公开(公告)号：US20080073608A1

公开(公告)日：2008-03-27

申请号：US11903368

申请日：2007-09-21

Applicant: Donald Haefner ,  Lu Zhu

Inventor： Donald Haefner ,  Lu Zhu

IPC: F16K47/00

CPC classification number: F01L1/24 ,  F01L1/245

Abstract: The invention relates to a hydraulic valve play compensating element, for example for generating valve play compensation for a gas exchange valve in a valve operating mechanism of an internal combustion engine, having a piston housing (3) in which a piston (2), which is elastically supported against the piston housing (3) via a piston spring (9), is guided in a movable fashion, in which the piston (2) has a low-pressure space (7) which is connected via an axial opening (6) in a piston head (4) to a high-pressure space (8) which is enclosed by the piston housing (3), and having a control valve (12, 12') which has at least one control valve closing element (13) which can bear in a seal-forming fashion against a valve seat (21), the latter surrounding the axial opening (6) on a piston head underside (16), and comprises a control valve spring (14) which is preloaded in the opening direction, wherein, in the event of a collapsing movement between the piston (2) and the piston housing (3) when the gas exchange valve is actuated, the control valve closing element (13) can be acted on hydraulically in the closing direction by means of a build-up of pressure in the high-pressure space (8). In order to improve the valve play compensating element in such a way that it has a simpler, more cost-effective and flow-enhancing-design and at the same time permits reliable operation which is unsusceptible to tolerances, the control valve spring (14) is embodied as a spring element which is arranged in the high-pressure space (8), is radially spaced apart from the axial opening (6) and from the control valve closing element (13, 13') and is supported between the piston head underside (16) and a control valve holding element (15, 15') which is guided in the high-pressure space (8) in an axially movable fashion with a delimited actuating travel (20), holds the control valve closing element (13, 13') and is provided with an oil passage (19).

公开(公告)号：US07637238B2

公开(公告)日：2009-12-29

申请号：US11903368

申请日：2007-09-21

Applicant: Donald Haefner ,  Lu Zhu

Inventor： Donald Haefner ,  Lu Zhu

IPC: F01L1/14

CPC classification number: F01L1/24 ,  F01L1/245

Abstract: A hydraulic valve play compensating element for generating valve play compensation for a gas exchange valve in a valve operating mechanism of an internal combustion engine, having a piston housing in which a piston, which is elastically supported against the piston housing via a piston spring, is guided in a movable fashion, in which the piston has a low-pressure space which is connected via an axial opening in a piston head to a high-pressure space which is enclosed by the piston housing, and having a control valve which has at least one control valve closing element which can bear in a seal-forming fashion against a valve seat, the letter surrounding the axial opening on a piston head underside, and comprises a control valve spring which is preloaded in the opening direction, wherein, in the event of a collapsing movement between the piston and the piston housing when the gas exchange valve is actuated, the control valve closing element can be acted on hydraulically in the closing direction by means of a build-up of pressure in the high-pressure space wherein the control valve spring is embodied as a spring element which is arranged in the high-pressure space, is radially spaced apart from the axial opening and from the control valve closing element and is supported between the piston head underside and a control valve holding element which is guided in the high-pressure space in an axially movable fashion with a delimited actuating travel, holds the control valve closing element and is provided with an oil passage.

Abstract translation: 一种用于在内燃机的气门操作机构中产生用于气体交换阀的气门调节补偿元件的液压阀游隙补偿元件，其具有活塞壳体，其中通过活塞弹簧弹性地支撑在活塞壳体上的活塞为 以可移动的方式被引导，其中活塞具有通过活塞头中的轴向开口连接到由活塞壳体包围的高压空间的低压空间，并且具有至少具有至少 一个控制阀关闭元件，其可以以阀座的密封形式承载围绕活塞头下侧的轴向开口的字母，并且包括在打开方向上预加载的控制阀弹簧，其中，在事件 当气体交换阀被致动时，在活塞和活塞壳体之间的塌缩运动，控制阀关闭元件可以在闭合二极管中液压地作用 通过在高压空间中的压力积聚来实现的控制阀弹簧被实施为布置在高压空间中的弹簧元件，与轴向开口和控制阀径向间隔开 关闭元件并且被支撑在活塞头下侧和控制阀保持元件之间，该控制阀保持元件以具有限定的致动行程的可轴向移动的方式在高压空间中被引导，保持控制阀关闭元件并且设置有油通道。

公开(公告)号：US20080022954A1

公开(公告)日：2008-01-31

申请号：US11881368

申请日：2007-07-26

Applicant: Matthew Evans ,  Debora Manther ,  Donald Haefner ,  Richard Best

Inventor： Matthew Evans ,  Debora Manther ,  Donald Haefner ,  Richard Best

IPC: F01L1/047

CPC classification number: F01L1/185 ,  F01L2105/00 ,  F01L2105/02 ,  Y10T74/2107

Abstract: Proposed is a cam follower (1) for a valve drive of an internal combustion engine, having a roller (3), which is rotatably mounted on a journal (2), as a cam thrust face, which journal (2) runs with its outer casing (4) in a respective bore (5, 6) of a first and second guide wall (7, 8) of the cam follower (1), between which guide walls (7, 8) the roller (3) is held, which outer casing (4) is composed of a first and a second section (9, 10), which first section (9) intrinsically has a greater diameter than the second section (10), wherein the journal (2) has an axial travel limitation in one direction by means of its collar (11) which is situated between the sections (9, 10), and in the other direction by means of a radially projecting element such as a securing ring (12), which collar (11) and which securing ring (12) abut against one of the guide walls (7, 8).

Abstract translation: 提出了一种用于内燃机的阀驱动的凸轮从动件（1），其具有可旋转地安装在轴颈（2）上的作为凸轮推动面的辊（3），该轴颈（2）以其轴颈 外壳（4）位于凸轮从动件（1）的第一和第二引导壁（7,8）的相应的孔（5,6）中，其间保持有辊（3）的引导壁（7,8） ，所述外壳（4）由第一和第二部分（9,10）组成，所述第一部分（9）本身具有比所述第二部分（10）更大的直径，其中所述轴颈（2）具有轴向 通过其位于两个部分（9,10）之间的套环（11），并且通过诸如固定环（12）的径向突出的元件在另一个方向上在一个方向上行进限制，该套环（11） ），并且所述固定环（12）抵靠所述导向壁（7,8）之一。

公开(公告)号：US20070215088A1

公开(公告)日：2007-09-20

申请号：US11631280

申请日：2005-06-15

Applicant: Donald Haefner

Inventor： Donald Haefner

IPC: F01L1/14

CPC classification number: F01L1/143 ,  F01L1/14 ,  F01L13/0005 ,  F01L13/0031

Abstract: A switchable cam follower (1) is proposed which serves to transmit a cam stroke in a variable manner from a cam to valve timing mechanism elements of an internal combustion engine. The cam follower (1) comprises substantially a cylindrical inner part (5) and a cylindrical outer part (2) which can be displaced into one another in the direction of their longitudinal axes and can be locked and unlocked in a relative position by means of coupling means (10) which are preferably actuated by pressure-modulated hydraulic medium, and also comprises at least one spring means (7) which is arranged between the inner part (5) and the outer part (2). The inner part (5) has a run-on surface (16) for the cam at one end side (17) and is radially guided in an inner wall (4) of the outer part (2) by way of an outer circumferential surface (6). The outer part (2) has an outer cylindrical circumferential surface (3), by way of which the cam follower (1) is guided in a housing hole of the internal combustion engine in a longitudinally movable manner, and an outer end face (25) facing away from the cam, as a contact face for valve timing mechanism elements which are operatively connected to the cam follower (1). Here, the outer circumferential surface (3) of the outer part (2) is to have substantially identical diameters in the region of the end face (25) which faces the valve timing mechanism element and in the region of an opening (26) which is oriented toward the inner part (5). At the same time, the spring means (7) is to be arranged within the outer part (2).

Abstract translation: 提出了一种可切换的凸轮从动件（1），其用于从内燃机的凸轮到气门正时机构元件以可变的方式传递凸轮行程。 凸轮从动件（1）包括基本上圆柱形的内部部分（5）和圆柱形的外部部分（2），该圆柱形的内部部分（2）可沿它们的纵向方向彼此移位，并且可以通过相对位置被锁定和解锁 优选地由压力调节液压介质致动的联接装置（10），并且还包括布置在内部部分（5）和外部部分（2）之间的至少一个弹簧装置（7）。 内部部分（5）具有用于一端侧（17）处的凸轮的延伸表面（16），并且通过外周面（2）的外周面（4）的内壁 （6）。 外部部分（2）具有外圆柱形周向表面（3），凸轮从动件（1）以可纵向移动的方式被引导到内燃机的容纳孔中，外端面（25 ）作为可操作地连接到凸轮从动件（1）的气门正时机构元件的接触面。 这里，外部部件（2）的外周面（3）在面对阀门正时机构元件的端面（25）的区域内和在开口（26）的区域内具有基本相同的直径 朝向内部部分（5）。 同时，弹簧装置（7）将被布置在外部部分（2）内。