CN202851630U - Angular-contact ball bearing and liquefied gas pump device - Google Patents
Angular-contact ball bearing and liquefied gas pump device Download PDFInfo
- Publication number
- CN202851630U CN202851630U CN201220400319XU CN201220400319U CN202851630U CN 202851630 U CN202851630 U CN 202851630U CN 201220400319X U CN201220400319X U CN 201220400319XU CN 201220400319 U CN201220400319 U CN 201220400319U CN 202851630 U CN202851630 U CN 202851630U
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- Prior art keywords
- steel
- contact ball
- ball bearing
- stainless steel
- angular contact
- 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 - Lifetime
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Classifications
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- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/58—Raceways; Race rings
- F16C33/62—Selection of substances
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- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
- F16C19/16—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls
- F16C19/163—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls with angular contact
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- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/32—Balls
Abstract
The utility model provides an angular-contact ball bearing and a liquefied gas pump device. The angular-contact ball bearing is less prone to dimensional change due to low temperature and still has excellent wear resistance even if the angular-contact ball bearing is used in unlubricated environments. The class of the angular-contact ball bearing (10) is above the normal class according to the accuracy classes in the provisions of the international standard ISO492 of the international organization for standardization. Furthermore, according to the angular-contact ball bearing (10), both an inner ring (1) and an outer ring (2) are made of stainless steel, high-speed tool steel, bearing steel or carburizing steel and subjected to cryogenic treatment. Furthermore, rolling bodies (3) are made of stainless steel, high-speed tool steel, bearing steel, carburizing steel or ceramics and subjected to cryogenic treatment in case of being made of the stainless steel, high-speed tool steel, bearing steel or carburizing steel. Furthermore, a retainer (4) is made of resin compositions.
Description
Technical field
The utility model relates to angular contact ball bearing and possesses the liquid gas pump-unit of described angular contact ball bearing.
Background technique
The liquid gas that is used for pump liquefied gas possesses rolling bearing (for example angular contact ball bearing) with pump-unit, liquid gas with pump-unit in rolling bearing with main shaft supporting for can rotate freely, described main shaft is equipped with for the pumping impeller of liquid gas for example.
Be assemblied in described liquid gas and use the rolling bearing of pump-unit to contact with liquid gas, therefore produce sometimes variety of issue.For example, the steel that consist of rolling bearing might be subjected to the corrosion of liquid gas and deteriorated.In addition, the oiling agents such as lubricant oil, lubricating grease can't be disposed at bearing inside and carry out the lubricated of rolling bearing, so rolling bearing rotates under oil-free environment, the wearing and tearing of producing are arranged and reduce the possibility in life-span.
Therefore, propose to have following technology: by consisting of inner ring and outer ring with high nitrogen stainless steel, make rolling bearing have highly corrosion resistant (for example with reference to patent documentation 1).In addition, proposition has long rolling bearing of following life-span: assembling possesses the retainer of solid lubricant film, described solid lubricant film has low coefficient of friction, makes thus described rolling bearing have wearability (for example with reference to patent documentation 2) under oil-free environment.
Patent documentation 1: TOHKEMY 2007-127277 communique
Patent documentation 2: TOHKEMY 2006-220240 communique
As liquid gas, can enumerate for example liquefied petroleum gas (LPG) and LNG Liquefied natural gas, no matter but any all be low temperature, therefore it is more with the situation that the rolling bearing of pump-unit uses under utmost point low temperature environment to be assemblied in liquid gas.Therefore, consist of inner ring, outer ring, rolling element and the retainer of rolling bearing owing to low temperature produces dimensional changes, the possibility that produces unfavorable condition is arranged when rolling bearing rotates.In addition, be assemblied in liquid gas and determine with the serviceability temperature of the rolling bearing of the pump-unit kind by liquid gas, described temperature is according to the kind of liquid gas and difference is larger, so rolling bearing is in the larger temperature variation.
In addition, be assemblied in liquid gas and be used under the oil-free environment with the rolling bearing of pump-unit, therefore wish further to improve wearability.
The model utility content
Therefore, problem of the present utility model is, a kind of angular contact ball bearing is provided, and described angular contact ball bearing has solved the problem that described prior art has, be not easy because low temperature produces dimensional changes, even under oil-free environment, use still excellent in wear resistance.In addition, also will provide long liquid gas of a kind of life-span with pump-unit in the lump as problem.
In order to solve described problem, form of the present utility model is made of following such structure.That is, the angular contact ball bearing of a form of the present utility model is characterised in that it comprises: inner ring; The outer ring; A plurality of rolling elements, it is equipped between the raceway of the raceway of described inner ring and described outer ring in freely the mode of can rolling; And retainer, it is used for described rolling element is remained between described inner ring and the described outer ring, the grade of accuracy of the international standard ISO492 regulation of abideing by ISO (International Standards Organization) of described angular contact ball bearing is more than the regular grade, described inner ring and described outer ring are made of the steel that has carried out cryogenic treatment, this steel is stainless steel, Rapid Tool Steel, Bearing Steel or steel for carburizing, described rolling element is made of pottery or the steel that carried out cryogenic treatment, this steel is stainless steel, Rapid Tool Steel, Bearing Steel or steel for carburizing, and described retainer is made of resin combination.
The stainless steel that consists of described inner ring and described outer ring is preferably Martensitic Stain Less Steel, Ferritic Stainless Steel, Austenitic Stainless Steel or the precipitation hardening stainless steel of stipulating in accordance with the JIS of JISC, and the stainless steel that consists of described rolling element is preferably Martensitic Stain Less Steel, Ferritic Stainless Steel, Austenitic Stainless Steel or the precipitation hardening stainless steel of stipulating in accordance with the JIS of JISC.
In addition, described Martensitic Stain Less Steel is SUS403, SUS420 or SUS440C more preferably, described Ferritic Stainless Steel is SUS430 more preferably, described Austenitic Stainless Steel is SUS303, SUS304, SUS305, SUS316 or SUS317 more preferably, and described precipitation hardening stainless steel is SUS630 or SUS631 more preferably.
In addition, the Rapid Tool Steel that consists of described inner ring and described outer ring is preferably in accordance with the Rapid Tool Steel M50 of the AISI standard code of American Iron and Steel Institute or the Rapid Tool Steel SKH4 that abides by the JIS regulation of JISC, and the Rapid Tool Steel that consists of described rolling element is preferably in accordance with the Rapid Tool Steel M50 of the AISI standard code of American Iron and Steel Institute or the Rapid Tool Steel SKH4 that abides by the JIS regulation of JISC.
In addition, the Bearing Steel that consists of described inner ring and described outer ring is preferably high-carbon-chromium bearing steel SUJ2, SUJ3, SUJ4 or the SUJ5 that stipulates in accordance with the JIS of JISC, and the Bearing Steel that consists of described rolling element is preferably high-carbon-chromium bearing steel SUJ2, SUJ3, SUJ4 or the SUJ5 that stipulates in accordance with the JIS of JISC.
In addition, the steel for carburizing that consists of described inner ring and described outer ring is preferably SCr420, SCM420 or the SNCM420 that stipulates in accordance with the JIS of JISC, and the steel for carburizing that consists of described rolling element is preferably SCr420, SCM420 or the SNCM420 that stipulates in accordance with the JIS of JISC.
In addition, the liquid gas pump-unit of other form of the present utility model is characterized in that for being used for the liquid gas pump-unit of pump liquefied gas described liquid gas becomes can rotate freely with main shaft supporting by described angular contact ball bearing with pump-unit.
The material of the inner ring of angular contact ball bearing of the present utility model, outer ring, rolling element and retainer limits in above-mentioned mode, therefore is not easy to produce dimensional changes because of low temperature.In addition, the material of retainer limits in above-mentioned mode, even therefore use still excellent in wear resistance under oil-free environment.
In addition, liquid gas of the present utility model supports main shaft by described angular contact ball bearing with pump-unit, so the life-span is longer.
Description of drawings
Fig. 1 is the partial, longitudinal cross-sectional of the structure of the angular contact ball bearing of an expression mode of execution of the present utility model.
Label declaration
1: inner ring;
1a: raceway;
2: the outer ring;
2a: raceway;
3: rolling element;
4: retainer;
10: angular contact ball bearing.
Embodiment
With reference to accompanying drawing angular contact ball bearing of the present utility model and the liquid gas that the possesses described angular contact ball bearing mode of execution with pump-unit is at length described.Fig. 1 is the partial, longitudinal cross-sectional of the structure of the angular contact ball bearing of an expression mode of execution of the present utility model.
The angular contact ball bearing 10 of Fig. 1 possesses: inner ring 1, and it has raceway 1a at outer circumferential face; Outer ring 2, it has the opposed raceway 2a with the raceway 1a of inner ring 1 at inner peripheral surface; A plurality of rolling elements (ball) 3, it is equipped between two raceway 1a, the 2a in the mode that can roll freely; And retainer 4, it is used for rolling element 3 is remained between two raceway 1a, the 2a.In addition, angular contact ball bearing 10 also can possess the seal arrangements such as dust cover, rubber gasket.
The grade of accuracy of the international standard ISO492 regulation of abideing by ISO (International Standards Organization) (International Organization forStandardization) of described angular contact ball bearing 10 is more than the regular grade (Normal class).That is, any one among regular grade (Normal class), 6 grades (Class6), 5 grades (Class5), 4 grades (Class4), 2 grades (Class2).
In addition, in described angular contact ball bearing 10, inner ring 1 and outer ring 2 are made of stainless steel, Rapid Tool Steel, Bearing Steel or steel for carburizing, and have all carried out cryogenic treatment.In addition, rolling element 3 is made of stainless steel, Rapid Tool Steel, Bearing Steel, steel for carburizing or pottery, in situation about being made of stainless steel, Rapid Tool Steel, Bearing Steel or steel for carburizing, has carried out cryogenic treatment.
The stainless steel that consists of inner ring 1 and outer ring 2 is preferably Martensitic Stain Less Steel, Ferritic Stainless Steel, Austenitic Stainless Steel or the precipitation hardening stainless steel of stipulating in accordance with the JIS of JISC, and the stainless steel that consists of rolling element 3 is preferably Martensitic Stain Less Steel, Ferritic Stainless Steel, Austenitic Stainless Steel or the precipitation hardening stainless steel of stipulating in accordance with the JIS of JISC.
In addition, any in inner ring 1, outer ring 2 and the rolling element 3 no matter, Martensitic Stain Less Steel is SUS403, SUS420 or SUS440C more preferably, Ferritic Stainless Steel is SUS430 more preferably, Austenitic Stainless Steel is SUS303, SUS304, SUS305, SUS316 or SUS317 more preferably, and the precipitation hardening stainless steel is SUS630 or SUS631 more preferably.
In addition, the Rapid Tool Steel that consists of inner ring 1 and outer ring 2 is preferably in accordance with the Rapid Tool Steel M50 of the AISI standard code of American Iron and Steel Institute (American Ironand Steel Institute) or the Rapid Tool Steel SKH4 that abides by the JIS regulation of JISC, and the Rapid Tool Steel that consists of rolling element 3 is preferably in accordance with the Rapid Tool Steel M50 of the AISI standard code of American Iron and Steel Institute or the Rapid Tool Steel SKH4 that abides by the JIS regulation of JISC.
In addition, the Bearing Steel that consists of inner ring 1 and outer ring 2 is preferably high-carbon-chromium bearing steel SUJ2, SUJ3, SUJ4 or the SUJ5 that stipulates in accordance with the JIS of JISC, and the Bearing Steel that consists of rolling element 3 is preferably high-carbon-chromium bearing steel SUJ2, SUJ3, SUJ4 or the SUJ5 that stipulates in accordance with the JIS of JISC.
In addition, the steel for carburizing that consists of inner ring 1 and outer ring 2 is preferably SCr420, SCM420 or the SNCM420 that stipulates in accordance with the JIS of JISC, and the steel for carburizing that consists of rolling element 3 is preferably SCr420, SCM420 or the SNCM420 that stipulates in accordance with the JIS of JISC.
No matter inner ring 1, outer ring 2 and rolling element 3 are made of any steel, and the steel that is used for consisting of inner ring 1 and outer ring 2 both can be the steel of identical type with the steel that is used for consisting of rolling element 3, also can be different types of steel.
In addition, retainer 4 is made of the resin combination that contains resin, fibee reinforced material and solid lubricant.
Under the environment that described angular contact ball bearing 10 can suitably be used in liquid gas contacts, namely under low temperature (temperature of liquid gas) and the oil-free environment.For example, be suitable as following rolling bearing: described rolling bearing is assemblied in liquid gas with in the pump-unit, and the main shaft supporting that will be equipped with for the impeller of pump liquefied gas becomes can rotate freely.In addition, even do not contact with liquid gas, so long as under low temperature and oil-free environment, just can suitably use angular contact ball bearing 10.
For the stainless steel that has carried out cryogenic treatment, Rapid Tool Steel, Bearing Steel and steel for carburizing, even be subjected to low temperature, dimensional changes is also very little, if therefore inner ring 1 and outer ring 2 are made of such material, then the dimensional changes of angular contact ball bearing 10 is less at low temperatures, is not easy to produce when rotated unfavorable condition.In addition, if rolling element 3 also is made of such material, then the dimensional changes of angular contact ball bearing 10 is less at low temperatures, the more difficult unfavorable condition that produces when rotated.
In order to make the more difficult generation of dimensional changes owing to the low temperature generation, the treatment temperature of cryogenic treatment is preferably below-30 ℃.The Environmental Conditions temperature of angular contact ball bearing determines (the Environmental Conditions temperature of angular contact ball bearing is the temperature of described liquid gas) by the kind of liquid gas, therefore in the scope below-30 ℃, according to the kind of liquid gas the treatment temperature of cryogenic treatment is set.
In addition, if rolling element 3 is made of pottery, even excellent in wear resistance still under oil-free environment then, so 10 life-spans of angular contact ball bearing are longer.
In addition, retainer 4 is made of the resin combination that contains resin, fibee reinforced material and solid lubricant, so angular contact ball bearing 10 is lubricated by the solid lubricant of retainer 4, though under oil-free environment excellent in wear resistance still.Thus, though angular contact ball bearing 10 under oil-free environment still the life-span longer.In addition, in resin combination, be combined with fibee reinforced material, so retainer 4 is not easy to produce dimensional changes because of low temperature.Therefore, be not easy when angular contact ball bearing 10 rotation, to produce unfavorable condition.
The kind that consists of the pottery of rolling element 3 is not particularly limited, but take silicon nitride, zirconium oxide, silicon carbide, aluminium oxide as preferred.
In addition, the kind of the resin of the resin combination of formation retainer 4 is not particularly limited, but take fluororesin, polyamide resin, polyimide resin, polyphenylene sulfide (PPS), polyether-ether-ketone resin (PEEK) as preferred.As the example of fluororesin, can list polytetrafluoroethylene (PTFE), tetrafluoroethylene-perfluorinated alkoxy vinyl ether copolymer (PFA), ethylene-tetrafluoroethylene copolymer (ETFE), polyvinylidene fluoride (PVDF), fluorinated ethylene propylene copolymer (FEP), polychlorotrifluoroethylene (PCTFE), ethylene-chlorotrifluoro-ethylene copolymer (ECTFE).As the example of polyamide resin, can list polyamide 6, polyamide 66.
In addition, the kind of the fibee reinforced material of resin combination is not particularly limited, but can list aluminium borate whisker, potassium titanate crystal whisker, carbon whisker, graphite whisker, silicon carbide whisker, silicon nitride crystal whisker, alumina whisker, carbon fiber, glass fibre.
In addition, the kind of the solid lubricant of resin combination is not particularly limited, but can list graphite, hexagonal boron nitride, fluormica, melamine cyanurate, fluorographite, molybdenum disulfide, tungsten disulfide.
In addition, the kind of liquid gas is not particularly limited, but can list liquefied petroleum gas (LPG), LNG Liquefied natural gas, liquefied methane gas, liquid propane gas, liquefied butane gas, liquefaction ammonia, liquid hydrogen, liquid nitrogen, liquid oxygen, liquid helium.
In addition, as the liquid gas pump-unit, can list following liquid gas and use pump-unit as an example.At liquid gas with the housing of pump-unit with run through and be folded with for example 2 angular contact ball bearings between the main shaft that is inserted in the described housing, these 2 angular contact ball bearings be configured to the axial empty standard width of a room in an old-style house every.The outer ring of angular contact ball bearing is installed on the inboard of housing, and inner ring is embedded in main shaft, and main shaft is supported to respect to housing and can rotates freely by angular contact ball bearing.Possess impeller for pump liquefied gas at an end of main shaft, be connected with motor for the drive main spindle rotation at the other end of main shaft.
Claims (7)
1. an angular contact ball bearing (10) is characterized in that,
Described angular contact ball bearing (10) possesses: inner ring (1); Outer ring (2); A plurality of rolling elements (3), it is equipped between the raceway (2a) of the raceway (1a) of described inner ring (1) and described outer ring (2) in freely the mode of can rolling; And retainer (4), it is used for described rolling element (3) is remained between described inner ring (1) and described outer ring (2),
The grade of accuracy of the international standard ISO492 regulation of abideing by ISO (International Standards Organization) of described angular contact ball bearing (10) is more than the regular grade,
Described inner ring (1) and described outer ring (2) are made of the steel that has carried out cryogenic treatment, and this steel is stainless steel, Rapid Tool Steel, Bearing Steel or steel for carburizing,
Described rolling element (3) is made of pottery or the steel that carried out cryogenic treatment, and this steel is stainless steel, Rapid Tool Steel, Bearing Steel or steel for carburizing,
Described retainer (4) is made of resin combination.
2. angular contact ball bearing according to claim 1 (10) is characterized in that,
Consist of Martensitic Stain Less Steel, Ferritic Stainless Steel, Austenitic Stainless Steel or the precipitation hardening stainless steel of stainless steel for stipulating in accordance with the JIS of JISC of described inner ring (1) and described outer ring (2),
Consist of Martensitic Stain Less Steel, Ferritic Stainless Steel, Austenitic Stainless Steel or the precipitation hardening stainless steel of stainless steel for stipulating in accordance with the JIS of JISC of described rolling element (3).
3. angular contact ball bearing according to claim 2 (10) is characterized in that,
Described Martensitic Stain Less Steel is SUS403, SUS420 or SUS440C, described Ferritic Stainless Steel is SUS430, described Austenitic Stainless Steel is SUS303, SUS304, SUS305, SUS316 or SUS317, and described precipitation hardening stainless steel is SUS630 or SUS631.
4. angular contact ball bearing according to claim 1 (10) is characterized in that,
The Rapid Tool Steel that consists of described inner ring (1) and described outer ring (2) is the Rapid Tool Steel M50 of the AISI standard code of abideing by American Iron and Steel Institute or the Rapid Tool Steel SKH4 that abides by the JIS regulation of JISC,
The Rapid Tool Steel that consists of described rolling element (3) is the Rapid Tool Steel M50 of the AISI standard code of abideing by American Iron and Steel Institute or the Rapid Tool Steel SKH4 that abides by the JIS regulation of JISC.
5. angular contact ball bearing according to claim 1 (10) is characterized in that,
Consist of high-carbon-chromium bearing steel SUJ2, SUJ3, SUJ4 or the SUJ5 of Bearing Steel for stipulating in accordance with the JIS of JISC of described inner ring (1) and described outer ring (2),
Consist of high-carbon-chromium bearing steel SUJ2, SUJ3, SUJ4 or the SUJ5 of Bearing Steel for stipulating in accordance with the JIS of JISC of described rolling element (3).
6. angular contact ball bearing according to claim 1 (10) is characterized in that,
Consist of SCr420, SCM420 or the SNCM420 of steel for carburizing for stipulating in accordance with the JIS of JISC of described inner ring (1) and described outer ring (2),
Consist of SCr420, SCM420 or the SNCM420 of steel for carburizing for stipulating in accordance with the JIS of JISC of described rolling element (3).
7. liquid gas pump-unit, it is characterized in that for being used for the liquid gas pump-unit of pump liquefied gas,
Described liquid gas becomes can rotate freely with main shaft supporting by the described angular contact ball bearing of any one in the claim 1 to 6 (10) with pump-unit.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012160945A JP2014020491A (en) | 2012-07-19 | 2012-07-19 | Angular ball bearing and pump device for liquid gas |
| JP2012-160945 | 2012-07-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202851630U true CN202851630U (en) | 2013-04-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220400319XU Expired - Lifetime CN202851630U (en) | 2012-07-19 | 2012-08-13 | Angular-contact ball bearing and liquefied gas pump device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2014020491A (en) |
| CN (1) | CN202851630U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105593545A (en) * | 2013-10-09 | 2016-05-18 | 日本精工株式会社 | Holding device, rolling bearing, and liquefied gas pump |
| EP3026269A1 (en) | 2014-11-26 | 2016-06-01 | Fives Cryomec AG | Rotary pump for cryogenic liquids |
| CN106523729A (en) * | 2015-09-10 | 2017-03-22 | 中国石油天然气集团公司 | Low-temperature top-assembling type fixed ball valve |
| US10132360B2 (en) | 2017-03-29 | 2018-11-20 | Angle X, Inc. | Universal joints and methods of manufacture |
| US11629760B2 (en) | 2019-10-04 | 2023-04-18 | Angle X, Inc. | Mechanical joints and applications |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH714176A1 (en) | 2017-09-19 | 2019-03-29 | Fives Cryomec Ag | Centrifugal pump for cryogenic fluids. |
-
2012
- 2012-07-19 JP JP2012160945A patent/JP2014020491A/en active Pending
- 2012-08-13 CN CN201220400319XU patent/CN202851630U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105593545A (en) * | 2013-10-09 | 2016-05-18 | 日本精工株式会社 | Holding device, rolling bearing, and liquefied gas pump |
| EP3026269A1 (en) | 2014-11-26 | 2016-06-01 | Fives Cryomec AG | Rotary pump for cryogenic liquids |
| EP3026269B1 (en) * | 2014-11-26 | 2019-10-23 | Fives Cryomec AG | Rotary pump for cryogenic liquids |
| CN106523729A (en) * | 2015-09-10 | 2017-03-22 | 中国石油天然气集团公司 | Low-temperature top-assembling type fixed ball valve |
| US10132360B2 (en) | 2017-03-29 | 2018-11-20 | Angle X, Inc. | Universal joints and methods of manufacture |
| US11111964B2 (en) | 2017-03-29 | 2021-09-07 | Angle X, Inc. | Universal joints and methods of manufacture |
| US11629760B2 (en) | 2019-10-04 | 2023-04-18 | Angle X, Inc. | Mechanical joints and applications |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2014020491A (en) | 2014-02-03 |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130403 |