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21. 发明专利

JP2002071026A CYLINDER HEAD GASKET 失效
公开(公告)号：JP2002071026A
公开(公告)日：2002-03-08
申请号：JP2000262205
申请日：2000-08-31
申请人： TAIHO KOGYO CO LTD , TOYODA GOSEI KK
发明人： KAWAI SHIRO , FUJIKI RYOSUKE , FURUKAWA TAKASHI , FURUYA TSUNEICHI
IPC分类号： F02F11/00 , F16J15/06 , F16J15/10 , F16J15/14
摘要： PROBLEM TO BE SOLVED: To simplify coating work by applying a liquid packing 23 to the lower surface of a shield member 22 only so as to reduce manufacturing costs for a cylinder head gasket 6. SOLUTION: In a cylinder head gasket 6 an engagement hole 21 is formed at the boundary section 18 between a cylinder block 3 and a case 4. A rubber shield member 22 is fit on the engagement hole 21. A plurality of communicating holes 22a are vertically punched on the shield member 22. A liquid packing 23 is applied to the lower surface of the shield member 22 only or also to the upper surface of the member 22 via the communicating hole 22a when holding the cylinder head gasket 6 between a cylinder head 2, and the cylinder block 3 and the case 4.

22. 发明专利

JPH0488265A METAL GASKET 失效
公开(公告)号：JPH0488265A
公开(公告)日：1992-03-23
申请号：JP20300190
申请日：1990-07-31
申请人： TOYOTA MOTOR CORP , TAIHO KOGYO CO LTD
发明人： KITAMURA TAKESHI , KURAMOTO AKIO , KAWAI SHIRO , YAMAGUCHI KENICHI
IPC分类号： F16J15/08
摘要： PURPOSE:To improve the sealing function of an outer peripheral bead and improve reliability by setting the spring constant of a bead formed at the outer peripheral edge part to be relatively smaller than that at the separated part, at the part where the bead approaches within a prescribed distance. CONSTITUTION:The height H of an outer peripheral bead 18 is set lower than the height H2 of other bead 17 at the part where other bead 17 in proximity exists, and set higher than the height H2 at the part where other bead 17 is close, at the part where other bead 17 in proximity does not exist, and the spring constant of the outer peripheral bead 18 is set small at the part where other bead 17 in proximity exists, and set large at the part where other bead 17 does not exist. Since the spring constant of the outer peripheral bead 18 can be varied according to the part where other bead 17 is close or not, the surface pressure due to the outer peripheral bead 18 can be made nearly equal at all parts independently of the existence of other bead 17 in proximity, and the sealing function of the outer peripheral bead 18 can be improved in comparison with that in the conventional.

23. 发明专利

JPH0483975A METALLIC GASKET 失效
公开(公告)号：JPH0483975A
公开(公告)日：1992-03-17
申请号：JP19818390
申请日：1990-07-26
申请人： TAIHO KOGYO CO LTD , TOYOTA MOTOR CORP
发明人： YAMAGUCHI KENICHI , MIYAGI KIYOCHIKA , ICHIMI SHINJI , KITAMURA TAKESHI , KURAMOTO AKIO , KAWAI SHIRO
IPC分类号： F16J15/08
摘要： PURPOSE:To prevent the damage of a joint face due to a bead and to ensure stable sealing ability on the whole of a metallic gasket by increasing the thickness of a seal film on the surface on the protrusion part side of a bead to a value higher than that of a seal film on the surface on the recessed part side of the bead. CONSTITUTION:First seal films 16a and 16b of a vulcanized rubber layer formed of vulcanized fluorine rubber are formed on both surfaces of a base plate 10. The first seal films 16a and 16b are a seal film adhered on the surface on the protrusion part 15a side of a bead 15 and the surface on the recessed part 15b side thereof, and a thickness t1a of the surface on the protrusion part 15a side of the bead 15 is increased to a value higher than a thickness t1a of the back thereof. Second seal films 17a and 17b of a non-vulcanized or unvulcanized rubber layer formed on both surfaces of the base plate 10 are adhered to the first seal films 16a and 16b, respectively. A thickness t2a of the surface on the protrusion part 15a side of the bead 15 of the second seal films 17a and 17b is increased to a value higher than a thickness t2b of the back thereof. This constitution prevents the top surface of the protrusion part of the bead from being exposed to damage a joint face and ensures stable sealing ability.

24. 发明专利

JPH0464776A METAL GASKET 失效
公开(公告)号：JPH0464776A
公开(公告)日：1992-02-28
申请号：JP17599390
申请日：1990-07-03
申请人： TAIHO KOGYO CO LTD , TOYOTA MOTOR CORP
发明人： YAMAGUCHI KENICHI , TSUNODA HIROTAKA , KITAMURA TAKESHI , KURAMOTO AKIO , KAWAI SHIRO
IPC分类号： F16J15/08
摘要： PURPOSE:To secure a stable sealability without being affected by a differential thermal expansion, etc., by welding a shim ring substantially continuously with a substrate along the whole circumference at least close to an inner edge. CONSTITUTION:A metal gasket 1 has a resilient metal plate, that is a substrate 10 of stainless steel, for example, a combustion chamber hole 11, etc., are bored in this substrate 10, and a bead 15, and inclined parts 16-18 are formed in it. A circular metal plate, or a spacer of stainless steel, or a so-called shim ring 20, for example, is fixed to the bead 15 on the side of a protruding part 15. The shim ring 20 is disposed to put its inner edge almost along the inner edge of an aperture end part 10a, and laser welding is performed close to the inner edge. A weld line 21 which is substantially continuous along the whole circumference of the inner edge of the circular shim ring 20 is therefore formed. Penetration of pressure fluid between the shim ring and the substrate can thus be prevented, and a stable sealability can be secured.

25. 发明专利

JP2002349344A SEALING STRUCTURE FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JP2002349344A
公开(公告)日：2002-12-04
申请号：JP2001153015
申请日：2001-05-22
申请人： TAIHO KOGYO CO LTD
发明人： KAWAI SHIRO , OSHIRO HARUYUKI
IPC分类号： F02F11/00 , F16J15/08
摘要： PROBLEM TO BE SOLVED: To provide a sealing structure having an improved sealing property and assembling property for a three-surface joining part compared to a conventional sealing structure. SOLUTION: The sealing structure 2 in an internal combustion engine 1 comprises a gasket 5 held between a cylinder head 3 and a cylinder block 4 to seal therebetween, and a liquid packing 7 for sealing the three-surface joining part X among the cylinder head, the cylinder block and a cover 6 assembled therewith. In order to seal the three-surface joining part, a protrusion 5A having a thickness same as that of the gasket and protruding relative to the cylinder head and the cylinder block is provided at an end of the gasket, and a receiving hole 6A for receiving the protrusion is provided on the cover. Then, the liquid packing 7 applied inside the receiving hole is pressurized by the protrusion inserted thereinto, and thus made to flow into a gap in the three- surface joining part.

26. 发明专利

JP2001295931A CYLINDER HEAD GASKET 失效
公开(公告)号：JP2001295931A
公开(公告)日：2001-10-26
申请号：JP2000109946
申请日：2000-04-11
申请人： TAIHO KOGYO CO LTD
发明人： KAWAI SHIRO , TSUNETO TOSHIHIRO , YASUDA TOMOYOSHI
IPC分类号： F16J15/08
摘要： PROBLEM TO BE SOLVED: To simultaneously provide excellent sealing performance with a primary seal part X and a secondary seal part Y. SOLUTION: This gasket 1 is provided with a first gasket base 2 and a second gasket base 3 overlapping each other. A grommet part 11 surrounding a combustion chamber hole is formed at the second gasket base, and an annular member is interposed inside the grommet part. The thickness t0 of the whole grommet part is set to be larger than the sum of the thickness t1 of the first gasket base and the thickness t2 of the second gasket base, and the thickness of both gasket bases are set to be same.

27. 发明专利

JP2001271933A CYLINDER HEAD GASKET 失效
公开(公告)号：JP2001271933A
公开(公告)日：2001-10-05
申请号：JP2000088040
申请日：2000-03-28
申请人： TAIHO KOGYO CO LTD
发明人： KAWAI SHIRO , OSHIRO HARUYUKI
IPC分类号： F02F11/00 , F16J15/08
摘要： PROBLEM TO BE SOLVED: To provide a superior sealing performance compared with a conventional one by enlarging the effective seal width of a liquid packing P. SOLUTION: This cylinder head gasket 1 is provided with a substrate 1' clamped between a cylinder head and a cylinder block and sealing the interval between them and a bead 7 provided in one end 1a of the substrate and sealing an interval toward a joining part 4a of a cover 4 fitted to the cylinder head and the cylinder block covering thereon. This cylinder head gasket 1 is so set that the end 7a of the bead 7 is positioned inward of the center O of the joining part 4a of the cover 4.

28. 发明专利

JP2000337213A ENGINE HAVING CYLINDER HEAD GASKET 失效
公开(公告)号：JP2000337213A
公开(公告)日：2000-12-05
申请号：JP14389399
申请日：1999-05-24
申请人： TAIHO KOGYO CO LTD , TOYOTA MOTOR CORP
发明人： KAWAI SHIRO , MASUDA YOSHIHIKO
IPC分类号： F02F11/00 , F16J15/08
摘要： PROBLEM TO BE SOLVED: To contain one end part of a seal member in a recessed part, to increase the thickness of the seal member to a value sufficiently higher than the thickness of a gasket even when the thickness of the gasket is thin, and as a result, to reliably close a step part between a cylinder block and a case even when the step is increased. SOLUTION: A cylinder head gasket 5 is nipped between a cylinder head 2 and a case 4 having a cylinder block 3 and an opening part coupled thereto. The gasket 5 is provided with a through-hole 19 formed in a position situated astride a space between the cylinder block and the case, and a seal member 20 situated in the through-hole. A recessed part is formed in the cylinder head and a position overlapped with the through-hole. One end part of the seal member is situated in the recessed part and the other end part is inserted through the through-hole and brought into elastic contact with the cylinder block and the case.

29. 发明专利

JPH0483976A GASKET 失效
公开(公告)号：JPH0483976A
公开(公告)日：1992-03-17
申请号：JP19818490
申请日：1990-07-26
申请人： TAIHO KOGYO CO LTD , TOYOTA MOTOR CORP
发明人： HAGIWARA YOSHIYUKI , JINNO OSAMU , KITAMURA TAKESHI , KURAMOTO AKIO , KAWAI SHIRO
IPC分类号： F16J15/08 , F16J15/12
摘要： PURPOSE:To facilitate discrimination of a seal member by forming the seal member of a material in a color different from that of a base plate. CONSTITUTION:A vulcanized rubber layer 30 composes a seal film, and since it contains carbon block, it is tinted with black. As against above, though first and second seal members 31 and 32 are also formed of vulcanized rubber, both contain carbon black and white carbon, and a silicic acid compound and are colored, and tinted with grey. Since the seal member formed on the base plate is in a color from that of the base plate and discrimination is facilitated, it can be properly visually inspected whether the seal member is formed along a given locus. Further, through utilization of an optical device, automatic inspection is practicable and productivity is improved.

30. 发明专利

JP2002276809A CYLINDER HEAD GASKET 失效
公开(公告)号：JP2002276809A
公开(公告)日：2002-09-25
申请号：JP2001074386
申请日：2001-03-15
申请人： TAIHO KOGYO CO LTD , DENSO CORP , TOYOTA MOTOR CORP
发明人： KAWAI SHIRO , HAGIWARA YOSHIYUKI , YASUDA TOMOYOSHI , TANAKA TOSHIYUKI , MURAI HIROYUKI , NAKAYAMA SHIGEKI , SUEMATSU TOSHIO , FUKUMA TAKAO
IPC分类号： F02F11/00 , F16J15/06 , F16J15/08 , G01L23/10
摘要： PROBLEM TO BE SOLVED: To provide sealability equivalent to a general cylinder head gasket not built-in with a sensor, and reduce a cost required excepting a sensor, compared with a conventional one. SOLUTION: This cylinder head gasket is provided with two plates of the first and second outer plates 2, 3, and an inner plate 4 arranged between the outer plates. A storage hole 5 for storing the sensor S5 is drilled in a prescribed position of the inner plate, protrusions P5 protruded toward a sensor side are provided respectively in the both outer plates and pressing force received from a cylinder head and a cylinder block is transmitted to the sensor via the protrusions.

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