CN1010795B - 密封封闭容器孔的密封机构 - Google Patents
密封封闭容器孔的密封机构Info
- Publication number
- CN1010795B CN1010795B CN87100122A CN87107868A CN1010795B CN 1010795 B CN1010795 B CN 1010795B CN 87100122 A CN87100122 A CN 87100122A CN 87107868 A CN87107868 A CN 87107868A CN 1010795 B CN1010795 B CN 1010795B
- Authority
- CN
- China
- Prior art keywords
- hole
- sealing mechanism
- mentioned
- shell
- washer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 25
- 238000012856 packing Methods 0.000 claims description 20
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 239000004411 aluminium Substances 0.000 claims 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims 1
- 229910052782 aluminium Inorganic materials 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 abstract description 5
- 239000002184 metal Substances 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract 1
- 229910000838 Al alloy Inorganic materials 0.000 description 9
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000012530 fluid Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B43/00—Washers or equivalent devices; Other devices for supporting bolt-heads or nuts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B33/00—Features common to bolt and nut
- F16B33/002—Means for preventing rotation of screw-threaded elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C1/00—Rotary-piston machines or engines
- F01C1/08—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing
- F01C1/10—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
- F01C1/103—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member the two members rotating simultaneously around their respective axes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C20/00—Control of, monitoring of, or safety arrangements for, machines or engines
- F01C20/24—Control of, monitoring of, or safety arrangements for, machines or engines characterised by using valves for controlling pressure or flow rate, e.g. discharge valves
- F01C20/26—Control of, monitoring of, or safety arrangements for, machines or engines characterised by using valves for controlling pressure or flow rate, e.g. discharge valves using bypass channels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/121—Casings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
- F04B49/065—Control using electricity and making use of computers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/08—Regulating by delivery pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B43/00—Washers or equivalent devices; Other devices for supporting bolt-heads or nuts
- F16B43/001—Washers or equivalent devices; Other devices for supporting bolt-heads or nuts for sealing or insulation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S411/00—Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener
- Y10S411/955—Locked bolthead or nut
- Y10S411/974—Side lock
- Y10S411/984—Longitudinal
- Y10S411/99—Washer tongue-held
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Computer Hardware Design (AREA)
- Bolts, Nuts, And Washers (AREA)
- Gasket Seals (AREA)
- Pressure Vessels And Lids Thereof (AREA)
- Casings For Electric Apparatus (AREA)
Abstract
一种密封封闭容器壳孔的密封机构包括带有螺纹和法兰部分的螺栓。在孔的一端开口处有座部分。在座部分的表面有防转部分。而垫圈置于座部分。垫圈用较壳软的金属制造。垫圈藉固定螺栓变形并与防转部分啮合,当其接触法兰部分时防止旋转。因此垫圈的内端面在座部分面上不摩擦。两表面之间的密封因此得以保持。
Description
本发明涉及密封机构,尤其是在诸如压缩机壳的封闭容器上固定螺栓时的密封机构。
具有功能零件的封闭容器,诸如压缩机壳要有高的密封性能。然而,一般的压缩机壳有一些孔,用来固定封入冷冻剂的阀门,通过螺栓的轴心部分以从外部固定内部零件,或者固定盲塞。因此,尽管孔为阀门或柱塞所封,压缩机壳内的流体和油仍可能通过孔泄漏出来。
由于这个原因,先有技术中可靠地密封孔的密封机构是众所周知的,它包括用诸如铝合金或铜等较软金属制的垫圈和用诸如铁等较硬金属制的螺栓。当螺栓在压缩机壳的外表面拧紧或松开时,这种密封机构的垫圈与螺栓的头部一起旋转,垫圈表面和孔的开口表面互相摩擦。因此,两个表面变得粗糙,它们之间的密封性能可能降低。
例如,软铝合金制压缩机壳孔的开口在螺栓旋转时如果和铜制垫圈的表面互相摩擦,由于铜比铝合金软,铝合金首先被垫圈从孔的开口处刮落。从开口刮落的铝合金附于垫圈的表面。附着的铝合金又从孔的开口刮落铝合金。因此,压缩机壳的密封性能降低,冷冻流体或油漏出。其结果是可能损坏压缩机。而且,由于上述原因,也难以将旧螺栓更新,维护变得困难。
本发明的基本目的是提供一种密封封闭容器孔的改进的密封机构。
根据本发明的一个实施例,密封封闭容器壳孔的密封机构包括具有螺纹的螺栓以及螺纹孔的开口。在开口的表面有防转部分,而垫圈置于开口,它用比壳软的金属制造。藉固定螺栓,垫圈变形并与防转部分互
相啮合以防止旋转。
通过对本发明最佳实施例的下列详述并参考附图,可以理解本发明的另外目的,特点和其他情况。
图1是根据本发明的一个实施例密封封闭容器孔的密封机构的剖视图。
图2是图1中密封封闭容器孔的密封机构的分解透视图。
图3是根据本发明的另一实施例密封封闭容器孔的密封机构的分解透视图。
参考图1和2,它表示根据本发明的一个实施例密封封闭容器孔的密封机构的结构。封闭容器1包括其上有孔11的壳10。壳10用软材料例如铝合金制造。在孔11的内表面是螺纹部份111。在孔11的一端开口是用来放垫圈2的座部份112。在座部份112的内边部份部份构成沿孔11的凹槽部份113。该凹槽部份113可用图3所示的凸块部份114代替。
垫圈2用软金属材料例如铜制造,其内径基本上等于孔11的外径。螺栓3包括头部份与法兰部份31以及自头部份一端侧面伸展的螺丝32。
在本实施例中,当螺栓3拧入壳10的孔11时,法兰部份31贴于垫圈2的侧面,而垫圈2可与螺栓3的法兰部份31一起旋转。拧紧螺栓3时,垫圈2的内部份因螺栓3的轴向力而逐渐变形并啮入凹槽部份113。因为铜制垫圈2比铝合金制壳10软,因此,垫圈2不旋转。结果是垫圈2的内端面在壳10的面上不摩擦,保持了壳10的平面度。由于垫圈2的变形只是在内表面上产生,所以垫圈2和壳10之间的密封得以保持。当松开螺栓3时,垫圈2也不旋转,因此当螺栓3拧紧时可达同样效果。
通过最佳实施例对本发明进行了详述,但这些仅仅是举例,而本发明并不局限于这些例子。熟悉本技术者在本发明的范围内较易作其他变化和改进是容易理解的。
Claims (6)
1、一种密封封闭容器壳孔的密封机构,它包括伸入壳孔的带螺纹的螺栓,在上述孔一端开口上用来放垫圈的座部份,其特征在于:在所述座部分表面加工有防转装置,用来使垫圈变形并与之啮合,从而防止垫圈随着螺栓转动。
2、如权利要求1所述的密封封闭容器壳孔的密封机构,其特征是上述防转装置至少包括一个凹槽部份。
3、如权利要求2所述的密封封闭容器壳孔的密封机构,其特征是上述凹槽部份置于上述座部份的径向内边缘或外边缘上。
4、如权利要求1所述的密封封闭容器壳孔的密封机构,其特征是上述防转装置至少包括一个凸块部份。
5、如权利要求4所述的密封封闭容器壳孔的密封机构,其特征是上述凸块部份置于上述座部份的径向内边缘或外边缘上。
6、如权利要求1到5中任一所述的密封容器壳孔的密封机构,其特征是上述垫圈由铜制造,上述壳由铝制造的。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1986171911U JPH0542252Y2 (zh) | 1986-11-11 | 1986-11-11 | |
JPU171,911/86 | 1986-11-11 | ||
JP171911/86 | 1986-11-11 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN87107868A CN87107868A (zh) | 1988-05-25 |
CN1010795B true CN1010795B (zh) | 1990-12-12 |
Family
ID=15932114
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN87100122A Expired CN1010795B (zh) | 1986-11-11 | 1987-11-11 | 密封封闭容器孔的密封机构 |
Country Status (7)
Country | Link |
---|---|
US (1) | US5165882A (zh) |
EP (1) | EP0267760B1 (zh) |
JP (1) | JPH0542252Y2 (zh) |
KR (1) | KR880006476A (zh) |
CN (1) | CN1010795B (zh) |
AU (1) | AU603152B2 (zh) |
DE (1) | DE3765908D1 (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100470065C (zh) * | 2007-03-30 | 2009-03-18 | 重庆长安汽车股份有限公司 | 一种防水螺纹紧固件 |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2119626A1 (en) * | 1993-03-24 | 1994-09-25 | Jaroslav J. Olmr | Connecting rod |
FR2827016B1 (fr) * | 2001-07-04 | 2004-07-09 | Ge Med Sys Global Tech Co Llc | Dispositif quart de tour pour la fixation d'un capot ou d'un element analogue sur un element de structure, notamment dans le domaine des appareils medicaux |
JP2003269329A (ja) * | 2002-03-15 | 2003-09-25 | Sanden Corp | 自動車用コンプレッサ |
KR100747233B1 (ko) * | 2006-04-07 | 2007-08-07 | 현대자동차주식회사 | 타이밍체인커버에 장착되는 회전체를 위한 베어링유닛의조립구조 및 그 조립방법 |
US8628312B2 (en) * | 2010-03-31 | 2014-01-14 | Emerson Climate Technologies, Inc. | Compressor including anti-rotation washer and method of assembly |
CN101858470B (zh) * | 2010-06-12 | 2015-01-07 | 海洋王照明科技股份有限公司 | 一种通管连接结构 |
AU2013100400A4 (en) * | 2013-04-02 | 2013-05-09 | Illinois Tool Works Inc. | Metal frame members for use in building construction |
FR3035160B1 (fr) * | 2015-04-17 | 2018-03-23 | Centre Technique Des Industries Mecaniques | Ensemble a vis deformable |
CN106931241B (zh) * | 2015-12-31 | 2020-07-10 | 广州汽车集团股份有限公司 | 汽车线束过孔密封隔音结构 |
DE102016208665A1 (de) | 2016-05-19 | 2017-11-23 | Zf Friedrichshafen Ag | Vorrichtung zur lösbaren axialen Verbindung zweier Wellen eines Getriebes |
CA3038357C (en) * | 2016-12-13 | 2022-03-15 | Arconic Inc. | Reduced electromagnetic signature of conforming conical seal fastener systems |
EP3450775B1 (en) * | 2017-08-28 | 2022-03-09 | 3M Innovative Properties Company | Connecting element for friction-increasing connection of components, process for fixing a connecting element to a component and use of a connecting element |
WO2020227769A1 (en) * | 2019-05-14 | 2020-11-19 | Topaz Trading Pty Ltd | Threaded fastener pair, post anchor system and method of securing a post to a post anchor |
TR201921792A1 (tr) * | 2019-12-26 | 2022-04-21 | Roketsan Roket Sanayi Ve Ticaret Anonim Sirketi | Kani̇ster - mühi̇mmat arayüzü i̇çi̇n küresel basma yüzeyi̇ne sahi̇p bi̇r civata terti̇bati |
CN112901778B (zh) * | 2021-01-13 | 2022-12-30 | 西安近代化学研究所 | 一种螺纹连接零件用端面密封装置 |
Family Cites Families (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB593688A (en) * | 1944-08-28 | 1947-10-23 | George Ford | Improvements in or relating to locking washers |
US600308A (en) * | 1898-03-08 | Nut-lock | ||
US438687A (en) * | 1890-10-21 | Method of building the car-tracks of railways | ||
US435345A (en) * | 1890-08-26 | Seabird harrison byron cochrane | ||
US1208551A (en) * | 1915-12-08 | 1916-12-12 | Townson Hand | Rail-joint. |
US1548076A (en) * | 1925-04-20 | 1925-08-04 | Ed S Wallen | Nut lock |
US1690183A (en) * | 1926-12-30 | 1928-11-06 | William D Stoughton | Test plug |
DE728022C (de) * | 1941-09-03 | 1942-11-18 | Ernst Ruediger | Schraubverschluss, insbesondere fuer Blechverkleidungen im Flugzeugbau |
US2520459A (en) * | 1944-12-26 | 1950-08-29 | Northern Pump Company | Locking apparatus |
US2600974A (en) * | 1949-06-23 | 1952-06-17 | Us Rubber Co | Hanger fitting |
US2917819A (en) * | 1956-04-09 | 1959-12-22 | Pfaudler Permutit Inc | Method for repairing glass coated apparatus |
US3241422A (en) * | 1963-03-06 | 1966-03-22 | Armco Steel Corp | Vector seal fastener |
NL6513012A (zh) * | 1965-10-07 | 1967-04-10 | ||
US3661046A (en) * | 1970-11-09 | 1972-05-09 | Illinois Tool Works | Combination screw |
US3856424A (en) * | 1971-12-03 | 1974-12-24 | Ford Motor Co | Means for fastening a structural member subject to creep |
US3802475A (en) * | 1972-05-04 | 1974-04-09 | Emhart Corp | Fastener and fastener receiving device construction incorporating anti-backout resistance |
US4033243A (en) * | 1976-01-30 | 1977-07-05 | Textron, Inc. | Container fastener system |
CA1109080A (en) * | 1978-05-30 | 1981-09-15 | Hideo Kato | Indanamine derivatives |
SE445762B (sv) * | 1980-06-24 | 1986-07-14 | Volvo Ab | Anordning for att lasa ett mutterelement pa en axeltapp |
EP0058211B1 (de) * | 1981-02-13 | 1985-04-17 | Firma Carl Freudenberg | Selbstdichtende Unterlegscheibe |
FR2509811B1 (fr) * | 1981-07-17 | 1985-10-04 | Thomson Csf Mat Tel | Dispositif de centrage pour vis a tete fraisee |
US4418918A (en) * | 1983-03-14 | 1983-12-06 | Helix Technology Corporation | Static seal device with plastically deformable metal for cryogenic refrigerators |
GB2184187A (en) * | 1985-12-11 | 1987-06-17 | Bailey H & H | Washer |
US4744187A (en) * | 1987-01-27 | 1988-05-17 | The Firestone Tire & Rubber Company | Mechanical roof fastener |
-
1986
- 1986-11-11 JP JP1986171911U patent/JPH0542252Y2/ja not_active Expired - Lifetime
-
1987
- 1987-11-06 EP EP87309868A patent/EP0267760B1/en not_active Expired - Lifetime
- 1987-11-06 DE DE8787309868T patent/DE3765908D1/de not_active Expired - Lifetime
- 1987-11-09 KR KR870012588A patent/KR880006476A/ko not_active Application Discontinuation
- 1987-11-11 AU AU80997/87A patent/AU603152B2/en not_active Ceased
- 1987-11-11 CN CN87100122A patent/CN1010795B/zh not_active Expired
-
1989
- 1989-10-04 US US07/418,801 patent/US5165882A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100470065C (zh) * | 2007-03-30 | 2009-03-18 | 重庆长安汽车股份有限公司 | 一种防水螺纹紧固件 |
Also Published As
Publication number | Publication date |
---|---|
DE3765908D1 (de) | 1990-12-06 |
EP0267760A1 (en) | 1988-05-18 |
JPH0542252Y2 (zh) | 1993-10-25 |
AU8099787A (en) | 1988-05-12 |
US5165882A (en) | 1992-11-24 |
CN87107868A (zh) | 1988-05-25 |
KR880006476A (ko) | 1988-07-23 |
EP0267760B1 (en) | 1990-10-31 |
JPS6377114U (zh) | 1988-05-23 |
AU603152B2 (en) | 1990-11-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN1010795B (zh) | 密封封闭容器孔的密封机构 | |
JP2552233B2 (ja) | ドレンプラグ用ファスナ組立体 | |
US5066159A (en) | Ball joint with integral seal | |
KR100560905B1 (ko) | 시계의안전밸브 | |
US5709017A (en) | Tool for installing an air valve assembly | |
US5851082A (en) | Axial ball-and-socket joint for linkages in motor vehicles | |
CA2265427A1 (en) | Valve with fire-resistant seal | |
EP0603599B1 (en) | Seal device | |
US4580763A (en) | Seal-seat for use in ball valves | |
US4664425A (en) | Pipe-flange coupling with irreversible screwing at rotation | |
FR2632572A1 (fr) | Fixation sur la jante des composants necessaires pour surveiller un pneumatique | |
CN87215620U (zh) | 密封封闭容器孔的密封机构 | |
US4906008A (en) | Mechanical seal | |
US5878488A (en) | Washerless bolt head seal for compressor housing | |
JP4709403B2 (ja) | ボルト接合部のシール構造 | |
JP2006329400A (ja) | アクチュエータ等のガスケット装着用機器 | |
JPH08312804A (ja) | 二重偏心弁 | |
JPH0632527Y2 (ja) | メカニカルシール | |
JP3290275B2 (ja) | ボールバルブ | |
JPH0626770Y2 (ja) | 軸封止構造 | |
JP2003343738A (ja) | オイルシール | |
JPH08284948A (ja) | ボールジョイント装置 | |
JPS6343419Y2 (zh) | ||
JPH07167340A (ja) | バルブの軸封装置 | |
JPH0240400Y2 (zh) |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C13 | Decision | ||
GR02 | Examined patent application | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
OR01 | Other related matters | ||
C17 | Cessation of patent right | ||
CX01 | Expiry of patent term |