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Trelleborg特瑞堡密封系统航空密封件Aircraft Seals

特瑞堡密封系统公司是航空密封解决方案的领先供应商,其历史可以追溯到60多年前。 Dowty,Palmer-Chenard,Shamban,Airframe Seals和Impervia都是特瑞堡密封系统产品组合中的品牌。 Trelleborg Sealing Solutions is the leading supplier of sealing solutions to the aerospace industry with a history that goes back over 60 years. Dowty, Palmer-Chenard, Shamban, Airframe Seals and Impervia are all brands within the Trelleborg Sealing Solutions portfolio.


我们的产品几乎用于所有主要的飞机项目,并且通常被领先的飞机制造商和OEM客户指定为关键应用的密封解决方案的提供方。 Almost every major program.
Our products are used in almost every major aircraft program and are commonly specified by leading aircraft manufacturers and OEM customers as sealing solutions on a wide range of critical applications.

航空应用案例Application Examples of Aerospace Industry

确定密封和轴承应用的正确解决方案需要许多领域的专业知识,例如密封技术,流体动力学和材料科学。 Determining the proper solution for a sealing and bearing application requires expertise in many areas, such as sealing technology, fluid dynamics and material science.

受益于我们的经验 Benefit from our experience
特瑞堡经验丰富的工程师能够提供客户所需的专业知识,以平衡客户的所有要求 - 运行性能,使用寿命,成本和物流。 Our experienced engineers are able to provide the specialized expertise you need to balance all of your requirements -- operating performance, service life, cost and logistics.

  • 空气控制联接 - 热塑性轴承 Air Control Linkage - Thermoplastic Bearings
  • 弹性引气管高温密封 High Temperature Seal For Flexible Bleed Air Duct
  • 适用于超低温喷枪的聚氯三氟乙烯(PCTFE)夹套 PCTFE Face Seal For Cryogenic Paint Blaster
  • 高压燃油泵的聚四氟乙烯(PTFE)端面密封 PTFE Face Seal For High-Pressure Fuel Pump
  • 飞机辅助动力装置的聚四氟乙烯(PTFE)密封件 PTFE Seal For Aircraft APU
  • 电机转子阻尼器轴承 Rotor Damper Bearing
  • 适用于高真空快速断开工况的密封件 Seal For High Vacuum Quick Disconnect
  • 适合航空测试台的润滑型聚四氟乙烯密封件 Smooth-Running PTFE Seals For Airframe Test Rig
  • 变速箱弹簧施力聚四氟乙烯轴封 Gearbox Spring-Energized PTFE Shaft Seal
  • 助力矢量控制联动装置 Thrust Vectoring Control Linkage

空气控制联接 - 热塑性轴承Air Control Linkage - Thermoplastic Bearings

客户希望用使用寿命更长,免维护的产品替换现有的铜轴套。 The customer wanted to replace an existing bronze bushing with a longer-life, maintenance-free product.

解决方案
HiMod轴承延长了设备的使用寿命和可靠性,并延长了预防性维护程序之间的时间间歇。 The HiMod bearing extended the life and reliability of the equipment and increased the length of time between preventive maintenance procedures.

结果
HiMod轴承表现非常出色,设备的使用寿命也得到了显着改善。 The HiMod bearing performed exceptionally well and the life cycle of the equipment was substantially improved.

维护成本大幅降低,产品安全性和可靠性也有所提高。Maintenance costs have been substantially reduced and there has been an increase in product safety and reliability.

工况
+177°C / +350°F
摆动 Oscillating movements
内部密封 Internally sealed
高振动 High vibration


产品
HiMod - 高性能热塑性轴承 HiMod - High Performance Thermoplastic Bearings

弹性引气管高温密封High Temperature Seal For Flexible Bleed Air Duct

AIR DUST
客户想更换在高温压缩下失效的硅胶O形圈,新设计必须保持当前的杆和孔直径以及沟槽宽度。 The customer wanted to replace the existing silicone O-Ring, which failed under compression set at high temperature. The new design had to maintain current rod and bore diameters and groove width.
此外,新设计必须通过300,000次循环的压力脉冲测试,具有严格的泄漏要求。 In addition, the new design had to pass a pressure pulse test of 300,000 cycles, with stringent leakage requirements.

解决方案
标准TurconVarisealM2,带有TurconT11护套和重载V形弹簧 Standard Turcon Variseal M2 with a Turcon T11 jacket and heavy load V-spring

结果
指定的密封件通过了压力循环试验,满足了所有性能要求,延长整个热引气系统的使用寿命,并减少所需维护。 The specified seal passed the pressure cycle test, met all of the performance requirements, extended the operational life of the entire hot bleed air system, and reduced the required maintenance.

工况
0.4 to 1.2 MPa / 60 to 170 psi
-54°C to +260°C / -65°F to +500°F
慢速往复运动 /静态 Slow reciprocating / Static
热发动机引气 Hot Engine Bleed Air

产品
Turcon Variseal M2 (V型弹簧施力杆密封) Turcon Variseal M2 (V-spring-energized rod seal)

适用于超低温喷枪的聚氯三氟乙烯(PCTFE)夹套 PCTFE Face Seal For Cryogenic Paint Blaster

装有O形圈的装置在温度低于-90°C / -130°F时会发生过多泄漏。 当工况所需的工作温度低至-253°C / -423°F时,需要新的密封设计。 Units fitted with O-Rings experienced excessive leakage at temperatures below -90°C / -130°F. With desired operating temperatures as low as -253°C / -423°F, a new seal design was needed.

解决方案

TurconVarisealWF,带有聚氯三氟乙烯(PCTFE)夹套和重载Slantcoil弹簧 Custom Turcon Variseal WF with a Polymonochlorotrifluoroethylene (PCTFE) jacket and a heavy-load Slantcoil spring

结果
对于超低温工况,夹套材料的稳定性是至关重要。 该设计中的PCTFE夹套提供了所需的卓越稳定性,重载弹簧提供了产生和保持正向密封所需的负载。 For temperatures this low, stability of jacket material is crucial. The PCTFE jacket in this design offered the superior stability required, and the heavy spring provided the load necessary to create and maintain a positive seal.

工况

20 ~ 400 psi
-253°C / -423°F
Static
Nitrogen, CO2 pellets

产品
Turcon Variseal FW (Slantcoil-energized flange seal)

高压燃油泵的聚四氟乙烯(PTFE)端面密封PTFE Face Seal For High-Pressure Fuel Pump

因为使用的O形圈压缩变形和硬度退化,客户寻找其它可替代的密封设计。 Compression setting and degradation of the previous 80 durometer O-Rings caused the customer to search for a replacement seal design.

新密封件必须适合现有沟槽,提供更长的使用寿命和更佳的可靠性。 The new seal had to fit into the existing gland, provide longer life and better reliability.

解决方案

角部加强挡圈的TurconVarisealHF,配有TurconT01夹套和重载螺旋弹簧 Custom-extended heel Turcon Variseal HF with a Turcon T01 jacket and heavy-load helical spring


结果

新密封件安装在原有沟槽上,其防泄露性能超出客户预期 The specified seal fitted the existing gland and provided leak-tight performance that exceeded the customer's specifications.

避免密封件过早失效,维护成本显著降低 Premature failure was eliminated and maintenance costs were significantly reduced.

工况:
35 to 55 MPa / 5000 to 8000 psi
-54°C to +260°C / -70°F to +100°F
Static
Jet fuel

产品
Turcon Variseal WF(Slantcoil spring-energized face seal)

飞机辅助动力装置的聚四氟乙烯(PTFE)密封件PTFE Seal For Aircraft APU

任务是设计一个轻型轴封,减少空间需求,以取代原来的飞机辅助动力装置(APU)设计的机械端面密封。 The task was to design a lightweight shaft seal with reduced space requirements to replace the mechanical face seal that was designed into the original aircraft auxiliary power unit (APU.)

客户首先考虑传统的油封,但是应用中产生太多摩擦。 A conventional oil seal was first considered by the customer, but it generated too much friction for the application.

解决方案
标准TurconVarilipPDRTP1,带TurconT25密封元件和不锈钢外壳 Standard Turcon Varilip PDR TP1 with a Turcon T25 sealing element and a Stainless Steel case

结果
TurconVarilipPDRTP1的运行扭矩降至0.3磅英寸,性能远优于传统油封,并且比机械端面密封更轻,更小。 The Turcon Varilip PDR TP1 brought the running torque down to 0.3 lb in. with much better performance than the elastomeric oil seal and was lighter and smaller than the mechanical face seal.

工况
.07 MPa / 10 psi
-54°C to +163°C / -65°F to +325°F
6 to 13 m/s / 1255 to 2620 sfpm
Mil-L-23699 oil

产品
Turcon Varilip PDR TP1 Polytetrafluoroethylene (PTFE) shaft sea

电机转子阻尼器轴承 Rotor Damper Bearing

军用飞机应用中的工程要求总是严格的。当高速飞机在几分钟内通过不同的大气条件或在很长一段时间内保持这种状态。 Engineering requirements in military aircraft applications are always rigorous. This is especially so when high-speed aircraft pass through different atmospheric conditions in a matter of minutes or remain in them for very long periods of time.

美国海军“海鹰”直升机的电机转子阻尼器主轴承遇到了维修问题。 Rotor damper main bearings in the U.S. Navy's Seahawk helicopters suffered service problems.

关键部件过早磨损,导致频繁的停机,使得关键设备停止运行。究其原因,主要在于用铍铜制成的轴承部件。 Crucial parts were plagued by premature wear, leading to frequent downtime. This resulted in critical equipment being out of service. Short product life was traced to the use of some bearing components made from beryllium copper.


解决方案

工程设计团队采用了创新方法。为了减少摩擦和磨损,用HiMod924聚合物轴承取代一些有色金属部件,减少金属之间的接触。 The engineering design team took an innovative approach. To reduce friction and wear, some nonferrous metal parts were replaced with HiMod 924 polymer bearings, and the elimination of metal-to-metal contact was achieved.


结果

HiMod轴承可以更好地承受如此严苛的负载和高振动条件。 HiMod bearings could better withstand such demanding load and high vibration conditions.

此外,轴承还具有更好的强度重量比,优异的耐磨性,耐化学性和减振性。 In addition, the bearings offered a better strength-to-weight ratio, excellent abrasion resistance, chemical resistance and vibration dampening properties.

工况
大气压力
-54°C to +148°C / -65°F to +300°F
250 cpm with high vibration
High dynamic stresses

产品
HiMod High Performance Thermoplastic Bearings

适用于高真空快速断开工况的密封件 Seal For High Vacuum Quick Disconnect

对于这个空间站应用,控制泄漏至关重要。 真空和压力与温度范围和沟槽设计相结合,使该应用具有挑战性。 For this space station application, leakage control was absolutely vital. The vacuum and pressure combined with the temperature range and gland design made this application challenging.

解决方案
定制TurconVarisealW2,带有聚氯三氟乙烯(PCTFE)夹套和重载Slantcoil弹簧 Custom Turcon Variseal W2 with a Polymonochlorotrifluoroethylene (PCTFE) jacket and a heavy-load Slantcoil spring

结果
尽管工况苛刻,解决方案却很简单。 使用的密封件是TurconVarisealW2,密封唇口车削为45度角 As difficult as the operating conditions were, the solution was rather simple. The specified seal was a Turcon Variseal W2 machined at a 45° angle.

通过选择合适的夹套材料和弹簧负载,该密封件提供了在空间站中使用所需的可靠性和密封性。 With the proper choices of jacket material and spring load this seal provided both the reliability and sealability required for use in the space station.

工况
10-5 Torr to 3.1 MPa / 450 psi
-87°C to +60°C / -124°F to +140°F
静密封 / 低摆动
无水氨

产品
Turcon Variseal W2 (Slantcoil-energized rod seal)

适合航空测试台的润滑型聚四氟乙烯密封件 Smooth-Running PTFE Seals For Airframe Test Rig

用于C17运输机的测试台涉及安装在机身和支撑结构之间的多个液压缸。循环中最长的行程发生在模拟飞机机翼上的2.5g向下载荷期间。 A test rig for the C17 transport plane involved numerous hydraulic cylinders mounted between the airframe and support structure. The longest stroke in the cycle occurred during simulation of a 2.5 g downward load on the aircraft wings.

密封系统爬行导致模拟滞后,因此需要更适合的密封解决方案。 Sealing system stick-slip was contributing to hysteresis in the simulation, which created a need for an alternative sealing solution.

解决方案
定制TurconVarisealW,配有TurconT17夹套和中等载荷的Slantcoil弹簧 Custom Turcon Variseal W with a Turcon T17 jacket and medium-load Slantcoil spring

结果
解决方案经受住了相当于60,000飞行小时的压力测试(17,000次任务和24,000次着陆)。 C17模拟器液压密封系统满足或超过所有要求。 The proposed solution withstood stress testing equivalent to 60,000 flight hours (17,000 missions and 24,000 landings). The C17 simulator hydraulic sealing system met or exceeded all requirements.

工况
21 to 52 MPa / 3000 to 7500 psi
-54°C to +121°C / -65°F to +250°F
102 to 2032 mm / 4” to 80” stroke
Mil-H-5606, DTE 24

产品
Turcon Variseal W (Slantcoil-energized piston seal

变速箱弹簧施力聚四氟乙烯轴封Gearbox Spring-Energized PTFE Shaft Seal

在此应用中一直沿用的皮革密封件已经不能满足不断提高的速度和性能要求。 Leather seals that had been the mainstay for years in previous designs within this application were no longer able to handle increasing speeds and performance demands.
客户需要新的密封设计,具有更好的耐磨性,并最大程度地减少泄漏,摩擦和停机时间。 The customer required a new seal design that would provide better wear and greatly reduce leakage, friction and downtime.

解决方案
标准TurconVarisealCM,带TurconT09夹套和中等载荷V型弹簧 Standard Turcon Variseal CM with a Turcon T09 jacket and medium-load V-spring

结果

指定的密封件符合客户的所有要求。 它持续时间更长,减少了泄漏,摩擦和停机时间。 The specified seal met all of the customer's requirements. It lasted longer and reduced leakage, friction and downtime.

工况
0 psi
-34°C to +38°C / -30°F to +100°F
340 rpm (bidirectional)
2.3 m/s / 444 sfpm
Mil-G 23837 and dust

产品
Turcon Variseal M (V-spring-energized rod seal)
Turcon Variseal CM (V-spring-energized canned rotary seal)

助力矢量控制联动装置Thrust Vectoring Control Linkage

客户正在寻找一种干运行轴套,以用于新的矢量设备系统。 由于这是一项新产品开发,客户向特瑞堡密封系统寻求技术支持。 The customer was looking for a dry running bushing to use in a new vectoring device system. As this was a new product development, the customer turned to Trelleborg Sealing Solutions for bearing design assistance.

该设计需要采用线性运动和慢速控制螺旋旋转。 The design needed to incorporate linear motion with a slow controlled helical rotation.

解决方案

设计工程师与客户合作确定主要合作目标。 因此,HiMod被选中用于生产可提供出色寿命和可靠性的轴套。 The design engineers worked with the client to determine the primary operation objectives. As a result, HiMod was chosen to produce a bushing that would provide outstanding life and reliability.

结果
HiMod轴套的优越性得到证明,其长期使用寿命和在宽泛的温度范围内始终如一的工作性能,极大延长维护时间。客户申请免维护服务。 The HiMod bushing proved to be superior. The customer reported maintenance-free service with outstanding life and consistent operation over a wide temperature range.

工况

带旋转部件的慢速线性驱动 Dry service
Slow linear actuation with rotational component
+71°C / +160°F

干运行
间歇使用

产品

性能热塑性材料轴承 HiMod High Performance Thermoplastic Bearings

 

有关航空密封解决方案的更多信息:

 

 

Trelleborg 特瑞堡密封系统是全球领先的密封解决方案供应商。 我们的产品范围包括 O形圈 液压密封件旋转密封件油封 静态密封件气动密封件机械端面密封件等等。 Trelleborg Sealing Solutions is a leading global supplier of sealing solutions. Our range of products includes O-Rings , hydraulic seals , rotary shaft seals , oil seals , static seals , pneumatic seals , mechanical face seals and many more.

 



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