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1. 发明授权

EP2957655B1 DLC COATING FILM 有权转让
公开(公告)号：EP2957655B1
公开(公告)日：2019-01-16
申请号：EP13879171.0
申请日：2013-03-22
申请人： Nittan Valve Co., Ltd.
发明人： KUBOTA, Yukio , ISHII, Shinichi
IPC分类号： C23C16/26 , C23C14/02

2. 发明授权

EP2905436B1 HOLLOW POPPET VALVE 有权转让
公开(公告)号：EP2905436B1
公开(公告)日：2018-12-26
申请号：EP13843227.3
申请日：2013-03-26
申请人： Nittan Valve Co., Ltd.
发明人： HOMMA, Koichi , ONUMA, Hiroki , HASEGAWA, Jin
IPC分类号： F01L3/20 , F01L3/14
CPC分类号： F16K49/007 , B21K1/22 , B23P15/002 , F01L3/14 , F01L3/16 , F01L3/20 , F16K1/12 , F16K1/32 , Y10T137/6579
摘要： To provide a hollow poppet valve having an improved heat reduction effect. In a hollow poppet valve (10) having a valve head (14) and a stem (12) integral with the valve head (14), the hollow poppet valve (10) is formed with an internal cavity S that extends in the valve head (14) and the stem (12). The internal cavity S is charged with a coolant (19) and an inert gas. The internal cavity S has a generally disk-shape internal cavity S1 and an internal stem cavity S2 formed in the stem (12) and connected to the internal valve head cavity S1 at a right angle. During a reciprocal motion of the valve (10), a vertical convective flow of coolant (19) along the axis L of the valve (10) is established at least in the internal valve head cavity S1, thereby enhancing its heat reduction effect.

3. 发明公开

EP3128141A1 HYDRAULIC LASH ADJUSTER 有权转让
标题翻译： HYDRAULIKSPIELAUSGLEICHSELEMENT
公开(公告)号：EP3128141A1
公开(公告)日：2017-02-08
申请号：EP14901755.0
申请日：2014-12-09
申请人： Nittan Valve Co., Ltd.
发明人： OZAWA, Hiroyuki
IPC分类号： F01L1/245
CPC分类号： F01L1/245 , F01L1/14 , F01L1/2405 , F01L2001/2444
摘要： A hydraulic lash adjuster having a reduced number of elements, yet capable of suppressing air from infusing into a high-pressure chamber (28). A plunger (14) is slidably fitted in a body (13). A reservoir (24) is formed in the plunger (14). The plunger's head portion (19) is formed with a communication hole (25) for communicating its interior with its exterior. A high-pressure chamber (28) is formed in the body (13) and between the plunger's bottom (20) and the bottom of the body (13). An oil supply hole (40) is formed in the peripheral wall (21) of the plunger. A valve mechanism (42) is provided at the plunger's bottom (20), between the body (13) and the plunger (14) via a return spring (41). Provided on the inner periphery of the plunger (14) is an inclined area (51b), subjected to impingement of oil jet ji ejected from the oil supply hole (40) and serving as an impingement area, such that the impingement area (51b) is more inclined to fall in the direction of the ejected oil as the inclined area (51b) nears the plunger's head portion (19).
摘要翻译：一种具有减少元件数量但能够抑制空气注入高压室（28）的液压间隙调节器。活塞（14）可滑动地装配在主体（13）中。在柱塞（14）中形成储存器（24）。柱塞的头部（19）形成有用于将其内部与其外部连通的连通孔（25）。高压室（28）形成在主体（13）中并且在柱塞的底部（20）和主体（13）的底部之间。在柱塞的周壁（21）上形成有供油孔（40）。在柱塞的底部（20）处通过复位弹簧（41）在阀体（13）和柱塞（14）之间提供阀机构（42）。在柱塞（14）的内周上设有倾斜区域（51b），受到从供油孔（40）喷射并作为冲击区域喷射的喷油嘴j1的冲击区域（51b）随着倾斜区域（51b）靠近柱塞头部（19），倾向于沿喷射油的方向落下。

4. 发明公开

EP3088776A1 POPPET VALVE AND METHOD FOR MANUFACTURING SAME 有权转让
标题翻译：凯利维尔VERFAHREN ZUR HERSTELLUNG DAVON
公开(公告)号：EP3088776A1
公开(公告)日：2016-11-02
申请号：EP14896279.8
申请日：2014-08-27
申请人： Nittan Valve Co., Ltd.
发明人： MIKAMI, Maiku , KURAHASHI, Kazunori
IPC分类号： F16K1/36 , B21K1/24 , C22F1/00 , C22F1/10 , F01L3/20
CPC分类号： F01L3/20 , B21K1/22 , B23P15/002 , C21D7/02 , C21D7/13 , C21D9/0068 , F01L3/02 , F01L2103/00 , F01L2103/01 , F01L2820/02
摘要： [Abstract] Stiffness strength of a seat surface in a poppet valve produced by forging is made to be more uniform.
[Problem]
[Solution] There is provided a method for manufacturing a poppet valve 10, in which a valve head 14 having a seat surface N is provided in one end of a valve stem 12 in a longitudinal direction, by forging, wherein an intermediate valve head 14' in a intermediate valve products 10' is provided with a pressing protrusions 15 in a region serving as the seat surface N after forging, the pressing protrusions 15 having a peak 15a positioned in a normal direction K2 of the seat surface N on a basis of the seat surface N of the forged valve head 14, in a sectional view the peak 15a of the pressing protrusions 15 is positioned on a normal line K2 passing a reference point P3 set on a virtual line (line segment K) connecting a base point P1 in an inner diameter side and a base point P2 in an outer diameter side of the seat surface N, and as viewed in a center axis X1 direction of the valve stem 12, a position of the reference point P3 is set such that a relation between a length L1 from the base point P1 in the inner diameter side to the reference point P3 and a length L2 from the base point P2 in the outer diameter side to the reference point P3 meets a formula of L1/L2 ≤ 0.5.
摘要翻译： [摘要]通过锻造制造的提升阀中的座面的刚度强度更均匀。提供了一种用于制造提升阀10的方法，其中具有座面N的阀头14沿纵向在阀杆12的一端通过锻造设置，其中中间体在中间阀产品10'中的阀头14'在锻造之后在用作座面N的区域中设置有按压突起15，按压突起15具有位于座面N的法线方向K2上的峰15a 在锻造阀头14的座面N的基础上，按压突起15的顶点15a位于通过设置在连接一个内径侧的基点P1和座部表面N的外径侧的基点P2，并且在阀杆12的中心轴线X1方向观察时，将基准点P3的位置设定为长度L1 fr之间的关系在内径侧的基点P1与基准点P3的距离以及从外径侧的基点P2到基准点P3的长度L2满足L1 /L2≤0.5的公式。

5. 发明公开

EP2905436A4 HOLLOW POPPET VALVE 有权转让
标题翻译：空心举阀
公开(公告)号：EP2905436A4
公开(公告)日：2016-07-27
申请号：EP13843227
申请日：2013-03-26
申请人： NITTAN VALVA
发明人： HOMMA KOICHI , ONUMA HIROKI , HASEGAWA JIN
IPC分类号： F01L3/20 , F01L3/14
CPC分类号： F16K49/007 , B21K1/22 , B23P15/002 , F01L3/14 , F01L3/16 , F01L3/20 , F16K1/12 , F16K1/32 , Y10T137/6579
摘要： To provide a hollow poppet valve having an improved heat reduction effect. In a hollow poppet valve (10) having a valve head (14) and a stem (12) integral with the valve head (14), the hollow poppet valve (10) is formed with an internal cavity S that extends in the valve head (14) and the stem (12). The internal cavity S is charged with a coolant (19) and an inert gas. The internal cavity S has a generally disk-shape internal cavity S1 and an internal stem cavity S2 formed in the stem (12) and connected to the internal valve head cavity S1 at a right angle. During a reciprocal motion of the valve (10), a vertical convective flow of coolant (19) along the axis L of the valve (10) is established at least in the internal valve head cavity S1, thereby enhancing its heat reduction effect.

6. 发明公开

EP2650075A4 DEBURRING DEVICE FOR FRICTION WELDING MACHINE 有权转让
标题翻译：去毛刺用于摩擦焊接机
公开(公告)号：EP2650075A4
公开(公告)日：2015-01-07
申请号：EP10860003
申请日：2010-11-25
申请人： NITTAN VALVA
发明人： OKUNO TAKEHIRO , ONOSE RYO , SAKANE KOJI , HOMMA KOICHI
IPC分类号： B23K20/12 , B23D19/00
CPC分类号： B23K20/26 , B23D79/12 , B23K20/00 , B23K20/12 , B23K20/129 , B23K37/08
摘要： OBJECT To provide a burring apparatus for a friction welding machine, capable of removing a burr created in friction welding immediately after the welding. MEANS FOR ACHIEVING THE OBJECT An inventive burring apparatus for a friction welding machine comprises: a clamp unit (25), provided at the front end of a horizontal main spindle (22), for holding the work piece W1 coaxial with the main spindle (22); a clamp unit (34) provided at the front end of a slide (30) that is movable to and away from the main spindle (22) in the direction of the axis L of the main spindle (22), the clamp unit (34) adapted to gripping the work (W2) coaxial with the slide (30); and a doughnut-shaped cutter (50) for shearing off a burr. The work piece W2 is moved forward together with the slide (30) through the doughnut-shaped cutter (50) ahead of the main spindle (22) until the work piece W2 comes into contact with the work piece W1 in rotation with the main spindle 22 so that the mated ends of the work pieces W1 and W2 are friction welded together on one side of the doughnut-shaped cutter (50) proximate to the main spindle (22), thereby forming a jointed work piece W. After the work pieces W1 and W2 are friction welded, the cutter 50 is moved over to the main spindle 22 Meanwhile, the burr w formed on the periphery of the jointed work is sheared off by the cutter. The jointed work piece W gripped by the main spindle (22) is then liberated from the main spindle 22, and the slide (30) is retracted to its home position. The chopped burr comes off the work piece W when the jointed work piece W is removed through the cutter 50.

7. 发明公开

EP2787095A1 NI-FE-CR-BASED ALLOY AND ENGINE VALVE COATED WITH SAME 有权转让
标题翻译： NI-FE-Cr合金与如此涂覆电动阀
公开(公告)号：EP2787095A1
公开(公告)日：2014-10-08
申请号：EP12854096.0
申请日：2012-10-15
申请人： Fukuda Metal Foil & Powder Co., Ltd. , Nittan Valve Co., Ltd.
发明人： OTOBE, Katsunori , NISHIMURA, Shinichi , NAKAGAWA, Kenji , IIO, Masanami
IPC分类号： C22C30/00 , B23K9/04 , B23K35/30 , B23K35/32 , C22C30/02 , C23C4/06 , F01L3/02 , F01L3/04 , C22C30/04
摘要： A hard-facing alloy having impact resistance, wear resistance and hot corrosion resistance and containing Fe which is a bountiful resource and inexpensive is provided. Provided are: a Ni-Fe-Cr alloy containing 0 to 20.0 mass% of Mo, 8.0 to 40.0 mass% of W, 20.0 to 40.0 mass% of a total amount of Mo and W, 20.0 to 50.0 mass% of Fe, 12.0 to 36.0 mass% of Cr and 1.0 to 2.5 mass% of B, and the remainder being Ni and unavoidable impurities; and an engine valve welded with the same alloy. The above Ni-Fe-Cr alloy can further contain 15 mass% or less of a total amount of elements selected from Co, Mn, Cu, Si and C, in such cases, 15.0 mass% or less of Co, 5.0 mass% or less of each of Mn and Cu, 2.0 mass% or less of Si and 0.5 mass% or less of C are preferred.

8. 发明授权

EP3128141B1 HYDRAULIC LASH ADJUSTER 有权转让
标题翻译：液压冲床调节器
公开(公告)号：EP3128141B1
公开(公告)日：2018-03-21
申请号：EP14901755.0
申请日：2014-12-09
申请人： Nittan Valve Co., Ltd.
发明人： OZAWA, Hiroyuki
IPC分类号： F01L1/245 , F01L1/24
CPC分类号： F01L1/245 , F01L1/14 , F01L1/2405 , F01L2001/2444
摘要： A hydraulic lash adjuster having a reduced number of elements, yet capable of suppressing air from infusing into a high-pressure chamber (28). A plunger (14) is slidably fitted in a body (13). A reservoir (24) is formed in the plunger (14). The plunger's head portion (19) is formed with a communication hole (25) for communicating its interior with its exterior. A high-pressure chamber (28) is formed in the body (13) and between the plunger's bottom (20) and the bottom of the body (13). An oil supply hole (40) is formed in the peripheral wall (21) of the plunger. A valve mechanism (42) is provided at the plunger's bottom (20), between the body (13) and the plunger (14) via a return spring (41). Provided on the inner periphery of the plunger (14) is an inclined area (51b), subjected to impingement of oil jet ji ejected from the oil supply hole (40) and serving as an impingement area, such that the impingement area (51b) is more inclined to fall in the direction of the ejected oil as the inclined area (51b) nears the plunger's head portion (19).

9. 发明公开

EP3196432A1 HYDRAULIC LASH ADJUSTER AND METHOD FOR USING HYDRAULIC LASH ADJUSTER 有权转让
标题翻译：液压冲刷调整器及使用液压冲刷调整器的方法
公开(公告)号：EP3196432A1
公开(公告)日：2017-07-26
申请号：EP14901940.8
申请日：2014-09-17
申请人： Nittan Valve Co., Ltd.
发明人： OZAWA Hiroyuki
IPC分类号： F01L1/245 , F01L1/255
摘要： Air is restrained from flowing into a high pressure chamber while the number of parts is reduced. A plunger (14) is slidably fitted into a body (13) ; a reservoir (24) is formed in the plunger (14) with a communication hole (25) formed in a head section (19) thereof to allow communication between an inside and an outside; a high pressure chamber (28) is formed in the body (13) between the body (13) and the plunger bottom section (20); an oil supply hole (40) is formed in a plunger circumferential wall section (21); a return spring (41) is interposed between the body (13) and the plunger (14) ; a valve mechanism (42) is disposed on the plunger bottom section (20) ; the reservoir (24) is set such that a space continuously extends; and the oil supply hole (14) is oriented outward in the radial direction as compared to an axis (O) of the plunger (14).
摘要翻译：部件数量减少时，空气被限制流入高压室。柱塞（14）可滑动地装配到主体（13）中; 在柱塞（14）中形成有储存器（24），在其头部（19）中形成有连通孔（25）以允许内部和外部之间的连通; 在主体（13）和柱塞底部（20）之间的主体（13）中形成高压室（28）; 在柱塞周壁部21上形成有供油孔40。复位弹簧（41）置于本体（13）和柱塞（14）之间; 阀芯机构（42）设置在柱塞底部（20）上; 贮存器（24）被设定为使得空间连续地延伸; 并且与所述柱塞（14）的轴线（O）相比，所述供油孔（14）在径向方向上向外定向。

10. 发明公开

EP3088776A4 POPPET VALVE AND METHOD FOR MANUFACTURING SAME 有权转让
标题翻译：锥阀和方法及其生产
公开(公告)号：EP3088776A4
公开(公告)日：2017-04-05
申请号：EP14896279
申请日：2014-08-27
申请人： NITTAN VALVA
发明人： MIKAMI MAIKU , KURAHASHI KAZUNORI
IPC分类号： F16K1/36 , B21K1/22 , B21K1/24 , B23P15/00 , C22F1/00 , C22F1/10 , F01L3/02 , F01L3/20
CPC分类号： F01L3/20 , B21K1/22 , B23P15/002 , C21D7/02 , C21D7/13 , C21D9/0068 , F01L3/02 , F01L2103/00 , F01L2103/01 , F01L2820/02
摘要： [Abstract] Stiffness strength of a seat surface in a poppet valve produced by forging is made to be more uniform. [Problem] [Solution] There is provided a method for manufacturing a poppet valve 10, in which a valve head 14 having a seat surface N is provided in one end of a valve stem 12 in a longitudinal direction, by forging, wherein an intermediate valve head 14' in a intermediate valve products 10' is provided with a pressing protrusions 15 in a region serving as the seat surface N after forging, the pressing protrusions 15 having a peak 15a positioned in a normal direction K2 of the seat surface N on a basis of the seat surface N of the forged valve head 14, in a sectional view the peak 15a of the pressing protrusions 15 is positioned on a normal line K2 passing a reference point P3 set on a virtual line (line segment K) connecting a base point P1 in an inner diameter side and a base point P2 in an outer diameter side of the seat surface N, and as viewed in a center axis X1 direction of the valve stem 12, a position of the reference point P3 is set such that a relation between a length L1 from the base point P1 in the inner diameter side to the reference point P3 and a length L2 from the base point P2 in the outer diameter side to the reference point P3 meets a formula of L1/L2 ‰¤ 0.5.

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