SEAL STRUCTURE
To provide a seal structure capable of suppressing plucking of a seal body in a valve stem seal, and suppressing extraction of the valve stem seal from a valve stem guide, while reducing a spring-back amount after fitting.SOLUTION: An outer peripheral surface of a valve stem guide 100 includes: a sl...
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| creator | ONODERA YUTAKA |
| description | To provide a seal structure capable of suppressing plucking of a seal body in a valve stem seal, and suppressing extraction of the valve stem seal from a valve stem guide, while reducing a spring-back amount after fitting.SOLUTION: An outer peripheral surface of a valve stem guide 100 includes: a slope 120 of which the diameter is reduced toward a front end at a side where a valve stem seal 200 is mounted; and an annular recess 130 which suppresses extraction of the valve stem seal 200 by being brought into a state where a fitting part 223 partially enters the recess. A spacing between the slope 120 and the annular recess 130 consists of a columnar face 140, and a length of the columnar face 140 in an axial direction is set equal to or shorter than 1.2 mm.SELECTED DRAWING: Figure 5
【課題】バルブステムシールにおけるシール本体が毟れてしまうことを抑制し、かつ嵌合後のスプリングバック量を低減させつつ、バルブステムガイドからのバルブステムシールの抜け出しを抑制することのできる密封構造を提供する。【解決手段】バルブステムガイド１００の外周面には、バルブステムシール２００が装着される側の最先端に向けて縮径する傾斜面１２０と、嵌合部２２３の一部が進入した状態になることでバルブステムシール２００の抜けを抑制する環状凹部１３０と、を備え、傾斜面１２０と環状凹部１３０との間は円柱面１４０により構成されており、円柱面１４０の軸線方向の長さが、１．２ｍｍ以下に設定されることを特徴とする。【選択図】図５ |
| format | Patent |
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【課題】バルブステムシールにおけるシール本体が毟れてしまうことを抑制し、かつ嵌合後のスプリングバック量を低減させつつ、バルブステムガイドからのバルブステムシールの抜け出しを抑制することのできる密封構造を提供する。【解決手段】バルブステムガイド１００の外周面には、バルブステムシール２００が装着される側の最先端に向けて縮径する傾斜面１２０と、嵌合部２２３の一部が進入した状態になることでバルブステムシール２００の抜けを抑制する環状凹部１３０と、を備え、傾斜面１２０と環状凹部１３０との間は円柱面１４０により構成されており、円柱面１４０の軸線方向の長さが、１．２ｍｍ以下に設定されることを特徴とする。【選択図】図５</description><language>eng ; jpn</language><subject>BLASTING ; CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES ; CYLINDERS ; ENGINE PLANTS IN GENERAL ; ENGINEERING ELEMENTS AND UNITS ; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS ; HEATING ; LIGHTING ; MACHINES OR ENGINES IN GENERAL ; MECHANICAL ENGINEERING ; PISTONS ; SEALINGS ; STEAM ENGINES ; THERMAL INSULATION IN GENERAL ; WEAPONS</subject><creationdate>2022</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20220705&DB=EPODOC&CC=JP&NR=2022099451A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25544,76293</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20220705&DB=EPODOC&CC=JP&NR=2022099451A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>ONODERA YUTAKA</creatorcontrib><title>SEAL STRUCTURE</title><description>To provide a seal structure capable of suppressing plucking of a seal body in a valve stem seal, and suppressing extraction of the valve stem seal from a valve stem guide, while reducing a spring-back amount after fitting.SOLUTION: An outer peripheral surface of a valve stem guide 100 includes: a slope 120 of which the diameter is reduced toward a front end at a side where a valve stem seal 200 is mounted; and an annular recess 130 which suppresses extraction of the valve stem seal 200 by being brought into a state where a fitting part 223 partially enters the recess. A spacing between the slope 120 and the annular recess 130 consists of a columnar face 140, and a length of the columnar face 140 in an axial direction is set equal to or shorter than 1.2 mm.SELECTED DRAWING: Figure 5
【課題】バルブステムシールにおけるシール本体が毟れてしまうことを抑制し、かつ嵌合後のスプリングバック量を低減させつつ、バルブステムガイドからのバルブステムシールの抜け出しを抑制することのできる密封構造を提供する。【解決手段】バルブステムガイド１００の外周面には、バルブステムシール２００が装着される側の最先端に向けて縮径する傾斜面１２０と、嵌合部２２３の一部が進入した状態になることでバルブステムシール２００の抜けを抑制する環状凹部１３０と、を備え、傾斜面１２０と環状凹部１３０との間は円柱面１４０により構成されており、円柱面１４０の軸線方向の長さが、１．２ｍｍ以下に設定されることを特徴とする。【選択図】図５</description><subject>BLASTING</subject><subject>CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES</subject><subject>CYLINDERS</subject><subject>ENGINE PLANTS IN GENERAL</subject><subject>ENGINEERING ELEMENTS AND UNITS</subject><subject>GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS</subject><subject>HEATING</subject><subject>LIGHTING</subject><subject>MACHINES OR ENGINES IN GENERAL</subject><subject>MECHANICAL ENGINEERING</subject><subject>PISTONS</subject><subject>SEALINGS</subject><subject>STEAM ENGINES</subject><subject>THERMAL INSULATION IN GENERAL</subject><subject>WEAPONS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2022</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZOALdnX0UQgOCQp1DgkNcuVhYE1LzClO5YXS3AxKbq4hzh66qQX58anFBYnJqXmpJfFeAUYGRkYGlpYmpoaOxkQpAgAMJx2D</recordid><startdate>20220705</startdate><enddate>20220705</enddate><creator>ONODERA YUTAKA</creator><scope>EVB</scope></search><sort><creationdate>20220705</creationdate><title>SEAL STRUCTURE</title><author>ONODERA YUTAKA</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2022099451A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; jpn</language><creationdate>2022</creationdate><topic>BLASTING</topic><topic>CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES</topic><topic>CYLINDERS</topic><topic>ENGINE PLANTS IN GENERAL</topic><topic>ENGINEERING ELEMENTS AND UNITS</topic><topic>GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS</topic><topic>HEATING</topic><topic>LIGHTING</topic><topic>MACHINES OR ENGINES IN GENERAL</topic><topic>MECHANICAL ENGINEERING</topic><topic>PISTONS</topic><topic>SEALINGS</topic><topic>STEAM ENGINES</topic><topic>THERMAL INSULATION IN GENERAL</topic><topic>WEAPONS</topic><toplevel>online_resources</toplevel><creatorcontrib>ONODERA YUTAKA</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>ONODERA YUTAKA</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>SEAL STRUCTURE</title><date>2022-07-05</date><risdate>2022</risdate><abstract>To provide a seal structure capable of suppressing plucking of a seal body in a valve stem seal, and suppressing extraction of the valve stem seal from a valve stem guide, while reducing a spring-back amount after fitting.SOLUTION: An outer peripheral surface of a valve stem guide 100 includes: a slope 120 of which the diameter is reduced toward a front end at a side where a valve stem seal 200 is mounted; and an annular recess 130 which suppresses extraction of the valve stem seal 200 by being brought into a state where a fitting part 223 partially enters the recess. A spacing between the slope 120 and the annular recess 130 consists of a columnar face 140, and a length of the columnar face 140 in an axial direction is set equal to or shorter than 1.2 mm.SELECTED DRAWING: Figure 5
【課題】バルブステムシールにおけるシール本体が毟れてしまうことを抑制し、かつ嵌合後のスプリングバック量を低減させつつ、バルブステムガイドからのバルブステムシールの抜け出しを抑制することのできる密封構造を提供する。【解決手段】バルブステムガイド１００の外周面には、バルブステムシール２００が装着される側の最先端に向けて縮径する傾斜面１２０と、嵌合部２２３の一部が進入した状態になることでバルブステムシール２００の抜けを抑制する環状凹部１３０と、を備え、傾斜面１２０と環状凹部１３０との間は円柱面１４０により構成されており、円柱面１４０の軸線方向の長さが、１．２ｍｍ以下に設定されることを特徴とする。【選択図】図５</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | BLASTING CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES CYLINDERS ENGINE PLANTS IN GENERAL ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING PISTONS SEALINGS STEAM ENGINES THERMAL INSULATION IN GENERAL WEAPONS |
| title | SEAL STRUCTURE |
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