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1. 发明专利

AU2017414097B2 Seal structure 未知
公开(公告)号：AU2017414097B2
公开(公告)日：2021-05-06
申请号：AU2017414097
申请日：2017-05-11
申请人： VALQUA LTD
发明人： YAMAMOTO TAKAHIRO , JING CHAO , MINAMI MITSURU , UEDA AKIRA , NORIDUKI YUKI
IPC分类号： F16J15/18 , E21B10/22
摘要： Provided is a seal structure capable of improving the service life of a seal material. The seal material (10) is disposed in a seal groove (31) formed in a sliding clearance between a shaft (20) and a case (30). The seal material (10) includes an outer circumferential surface (40), a curved inner circumferential surface (41), an installation surface (42), and an upper surface (43). The installation surface (42) has a shape recessed toward the upper surface (43). The upper surface (43) has a shape recessed toward the installation surface (42). In a seal material (10) cross section on a virtual plane which is parallel with a direction perpendicular to a radial direction of the seal material (10) and passes through a center line of the seal material, when the longest length between the installation surface (42) and the upper surface (43) in the direction of extension of the center line of the seal material is H [mm], and the shortest length between the installation surface (42) and the upper surface (43) in the direction of extension of the center line of the seal material is h [mm], the relationship 0.755≦h/H≦0.769 is satisfied.

2. 发明专利

AU2017414095A1 Seal structure 未知
公开(公告)号：AU2017414095A1
公开(公告)日：2019-11-14
申请号：AU2017414095
申请日：2017-05-11
申请人： VALQUA LTD
发明人： YAMAMOTO TAKAHIRO , JING CHAO , MINAMI MITSURU , UEDA AKIRA , NORIDUKI YUKI
IPC分类号： F16J15/18 , E21B10/22
摘要： Provided is a seal structure capable of improving the service life of a seal material. This seal structure (1) is provided with an annular seal material (10). The seal material (10) is disposed, in a sliding clearance between a shaft (20) and a case (30), in a seal groove (31) formed in the case (30). The case (30) has a low pressure-side surface part (32) in a seal structure (1) cross section on a virtual plane which is parallel with an axial direction (DR1) of the shaft (20) and passes through the center line (C1) of the shaft (20). The seal material (10) includes a first protrusion part (11). The first protrusion part (11) protrudes from the main body part (12) having a bottom surface (13) contacting the low-pressure side surface part (32), and has a shape extending so as to approach the shaft (20) when extending toward the low-pressure side. The first protrusion part has a tip part (14). The first protrusion part has a contact region (S) contacting the shaft (20). The tip part (14) is provided at a position closer to the low-pressure side than the contact region (S).

3. 发明专利

AU2017414095B2 Seal structure 未知
公开(公告)号：AU2017414095B2
公开(公告)日：2020-09-17
申请号：AU2017414095
申请日：2017-05-11
申请人： VALQUA LTD
发明人： YAMAMOTO TAKAHIRO , JING CHAO , MINAMI MITSURU , UEDA AKIRA , NORIDUKI YUKI
IPC分类号： F16J15/18 , E21B10/22
摘要： Provided is a seal structure capable of improving the service life of a seal material. This seal structure (1) is provided with an annular seal material (10). The seal material (10) is disposed, in a sliding clearance between a shaft (20) and a case (30), in a seal groove (31) formed in the case (30). The case (30) has a low pressure-side surface part (32) in a seal structure (1) cross section on a virtual plane which is parallel with an axial direction (DR1) of the shaft (20) and passes through the center line (C1) of the shaft (20). The seal material (10) includes a first protrusion part (11). The first protrusion part (11) protrudes from the main body part (12) having a bottom surface (13) contacting the low-pressure side surface part (32), and has a shape extending so as to approach the shaft (20) when extending toward the low-pressure side. The first protrusion part has a tip part (14). The first protrusion part has a contact region (S) contacting the shaft (20). The tip part (14) is provided at a position closer to the low-pressure side than the contact region (S).

4. 发明专利

AU2017414097A1 Seal structure 未知
公开(公告)号：AU2017414097A1
公开(公告)日：2019-11-14
申请号：AU2017414097
申请日：2017-05-11
申请人： VALQUA LTD
发明人： YAMAMOTO TAKAHIRO , JING CHAO , MINAMI MITSURU , UEDA AKIRA , NORIDUKI YUKI
IPC分类号： F16J15/18 , E21B10/22
摘要： Provided is a seal structure capable of improving the service life of a seal material. The seal material (10) is disposed in a seal groove (31) formed in a sliding clearance between a shaft (20) and a case (30). The seal material (10) includes an outer circumferential surface (40), a curved inner circumferential surface (41), an installation surface (42), and an upper surface (43). The installation surface (42) has a shape recessed toward the upper surface (43). The upper surface (43) has a shape recessed toward the installation surface (42). In a seal material (10) cross section on a virtual plane which is parallel with a direction perpendicular to a radial direction of the seal material (10) and passes through a center line of the seal material, when the longest length between the installation surface (42) and the upper surface (43) in the direction of extension of the center line of the seal material is H [mm], and the shortest length between the installation surface (42) and the upper surface (43) in the direction of extension of the center line of the seal material is h [mm], the relationship 0.755≦h/H≦0.769 is satisfied.

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