CN115163291A - an air turbo system - Google Patents

an air turbo system Download PDF

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Publication number
CN115163291A
CN115163291A CN202210734950.1A CN202210734950A CN115163291A CN 115163291 A CN115163291 A CN 115163291A CN 202210734950 A CN202210734950 A CN 202210734950A CN 115163291 A CN115163291 A CN 115163291A
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air
exhaust gas
module
supercharger
gas turbine
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Chinese (zh)
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张奇
张国炜
杜发荣
韩树军
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Beihang University
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Beihang University
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B37/00Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01DNON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/08Cooling; Heating; Heat-insulation
    • F01D25/12Cooling
    • F01D25/125Cooling of bearings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01DNON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/16Arrangement of bearings; Supporting or mounting bearings in casings
    • F01D25/162Bearing supports
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01DNON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/18Lubricating arrangements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B39/00Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
    • F02B39/14Lubrication of pumps; Safety measures therefor
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/12Improving ICE efficiencies

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Supercharger (AREA)

Abstract

The invention discloses an air turbocharging system, which comprises an exhaust gas turbine module, an air supercharger, a power transmission module and a lubricating module, wherein the exhaust gas turbine module is connected with an exhaust port of a combustion chamber of an engine, and a turbine rotor of the exhaust gas turbine module is driven by exhaust gas discharged by the engine to generate torque; the power transmission module is arranged between the exhaust gas turbine module and the air supercharger and used for transmitting torque; the lubricating module is arranged in a machine cover of the air supercharger; the air supercharger is driven by the power transmission module to supercharge the entering fresh air and convey the fresh air to the combustion chamber of the engine. According to the invention, the bearing seat is arranged in the space surrounded by the air supercharger cover, so that the axial length is effectively reduced, and the space waste is reduced; the independent lubricating module of the invention adopts the special lubricating oil of the supercharger, thereby preventing the problem of poor lubricating performance caused by lubricating the supercharger by using the lubricating oil of the engine.

Description

一种空气涡轮增压系统an air turbo system

技术领域technical field

本发明属于发动机技术领域,尤其涉及一种采用新布局和润滑系统的新型空气涡轮增压系统。The invention belongs to the technical field of engines, and in particular relates to a novel air turbocharging system adopting a new layout and a lubrication system.

背景技术Background technique

整体结构上,当前涡轮增压器可分为三个部分:压气机,中间体,涡轮机,压气机和涡轮机分别安装固定在发动机的进气管道和排气歧管上。涡轮机利用发动机排出的废气惯性冲力来推动涡轮室内的涡轮,涡轮又带动同轴的压气机叶轮,叶轮压送由空气滤清器管道送来的空气,使之增压进入气缸;中间体负责润滑和动力传递。In the overall structure, the current turbocharger can be divided into three parts: the compressor, the intermediate body, the turbine, the compressor and the turbine are respectively installed and fixed on the intake pipe and exhaust manifold of the engine. The turbine uses the inertial impulse of the exhaust gas discharged from the engine to push the turbine in the turbine chamber, and the turbine drives the coaxial compressor impeller. The impeller presses the air sent from the air filter pipeline to pressurize it into the cylinder; the intermediate is responsible for lubrication and power transmission.

涡轮增压器在较高的负荷下运转,其内部温度可达到750℃。为了保证浮环轴承的温度不超过规定值,涡轮增压器中间体需要一个很好的润滑系统。润滑系统主要由出油口、进油口、浮环轴承、中心转子和油道等部分组成。The turbocharger operates at higher loads and its internal temperature can reach 750°C. In order to ensure that the temperature of the floating ring bearing does not exceed the specified value, the turbocharger intermediate body needs a good lubrication system. The lubrication system is mainly composed of oil outlet, oil inlet, floating ring bearing, center rotor and oil passage.

当前涡轮增压器润滑系统使用依靠发动机润滑系统的溢流轴承系统,其工作原理与过程如下:首先,润滑油由涡轮增压器的进油口进入涡轮增压器的润滑油道;然后,润滑油进过润滑油道进入涡轮增压器内部,通过油路进入浮环轴承与中心转子部分;最后,在涡轮增压器中心转子的高速运行下带动浮环轴承运转。由于浮环轴承主要由浮环与润滑油孔组成,润滑油进入轴瓦与浮环之间,通过润滑油孔进入浮环与中心转子之间,润滑油在浮环轴承中逐渐形成润滑油膜,使得涡轮增压器正常运行。The current turbocharger lubrication system uses the overflow bearing system that relies on the engine lubrication system. Its working principle and process are as follows: first, the lubricating oil enters the lubricating oil passage of the turbocharger from the oil inlet of the turbocharger; then, The lubricating oil enters the turbocharger through the lubricating oil passage, and enters the floating ring bearing and the central rotor part through the oil passage; finally, the floating ring bearing is driven to run under the high-speed operation of the central rotor of the turbocharger. Since the floating ring bearing is mainly composed of a floating ring and a lubricating oil hole, the lubricating oil enters between the bearing bush and the floating ring, and enters between the floating ring and the central rotor through the lubricating oil hole, and the lubricating oil gradually forms a lubricating oil film in the floating ring bearing, making the The turbocharger operates normally.

传统的涡轮增压器润滑系统使用位于涡轮和压缩机壳体中间的溢流轴颈或滚珠轴承,这种轴承组件垂直安装在发动机的润滑系统中,热的机油不断地从其中泵出。许多情况下,特别是用于大规模生产的涡轮增压发动机,这种轴承组件有单独的空腔,发动机的冷却液可以流过,以帮助冷却轴承。Traditional turbocharger lubrication systems use overflow journal or ball bearings located between the turbine and compressor housings. This bearing assembly is mounted vertically in the engine's lubrication system from which hot oil is continuously pumped. In many cases, especially for mass-produced turbocharged engines, this bearing assembly has separate cavities through which the engine's coolant can flow to help cool the bearings.

这种类型的润滑系统在热停机时润滑效果不理想:第一,过多的润滑油会带来较大的阻力;第二,机油不是专门为高速滚珠轴承售后涡轮增压器设计的,因此无法提供最理想的润滑条件;第三,当涡轮增压发动机运转不畅时,润滑油和涡轮会达到极端温度。在这些情况下,关闭发动机会停止油流,从而使润滑油滞留在涡轮中并燃烧,导致轴承磨损和涡轮过早故障;第四,润滑系统和轴承靠近废气涡轮系统,即整个系统的热端且位于整个系统的中部位置,易受到热端影响,且难以利用空气对流降温。This type of lubrication system does not lubricate well during a hot shutdown: first, too much oil creates more drag; second, the oil is not specifically designed for high-speed ball bearing aftermarket turbochargers, so Optimal lubrication conditions cannot be provided; thirdly, when the turbocharged engine is not running smoothly, the oil and turbine can reach extreme temperatures. In these cases, shutting down the engine stops the oil flow, allowing the lubricant to remain in the turbine and burn, causing bearing wear and premature turbine failure; fourth, the lubrication system and bearings are close to the exhaust turbine system, the hot end of the overall system And located in the middle of the whole system, it is easily affected by the hot end, and it is difficult to use air convection to cool down.

另外,这样的总体系统布局也会带来受力上的不良影响。因为发动机对空气进气温度有要求,不能过高或者过低,因此空气在通过涡轮增压后,需要较长的冷凝管道接入发动机进气口。冷凝管道不是刚性的,承重能力较弱,而传统布局中,由于传统结构位于中间,而较重的空气增压器和废气涡轮分在左右两端,因此整体重量分布被均匀分在两端,因此链接空气增压端的冷凝管道口需要承受系统接近一半的重量,极易造成系统结构破坏,同时也会引起较强烈的震动。In addition, such an overall system layout will also bring about adverse effects on the force. Because the engine has requirements for the air intake temperature, it cannot be too high or too low, so after the air is turbocharged, a long condensation pipe is required to connect to the engine intake. The condensing pipe is not rigid and its load-bearing capacity is weak. In the traditional layout, since the traditional structure is located in the middle, and the heavier air supercharger and exhaust gas turbine are divided into the left and right ends, the overall weight distribution is evenly distributed at both ends. Therefore, the condensing pipe port connecting the air supercharging end needs to bear nearly half of the weight of the system, which can easily cause damage to the system structure and cause strong vibrations.

发明内容SUMMARY OF THE INVENTION

为了解决上述已有技术存在的不足,本发明提出一种空气涡轮增压系统,本发明的具体技术方案如下:In order to solve the above-mentioned deficiencies in the prior art, the present invention proposes an air turbocharging system, and the specific technical scheme of the present invention is as follows:

一种空气涡轮增压系统,包括废气涡轮模块、空气增压机、动力传动模块和润滑模块,其中,An air turbocharging system includes an exhaust gas turbine module, an air supercharger, a power transmission module and a lubrication module, wherein,

所述废气涡轮模块连接发动机燃烧室排气口,所述废气涡轮模块的涡轮转子由发动机排出的废气驱动产生转矩;The exhaust gas turbine module is connected to the exhaust port of the engine combustion chamber, and the turbine rotor of the exhaust gas turbine module is driven by the exhaust gas discharged from the engine to generate torque;

所述动力传动模块设于废气涡轮模块与所述空气增压机之间,用于传递转矩;所述润滑模块设于所述空气增压机的机盖内;the power transmission module is arranged between the exhaust gas turbine module and the air supercharger for transmitting torque; the lubricating module is arranged in the cover of the air supercharger;

所述空气增压机在所述动力传动模块的带动下,对进入的新鲜空气增压,并将其输送到发动机燃烧室。The air booster, driven by the power transmission module, pressurizes the incoming fresh air and delivers it to the engine combustion chamber.

进一步地,所述废气涡轮模块包括内部设置涡轮转子的涡轮机壳,涡轮机壳上设有废气进气口和废气排气口,所述废气进气口用于接收发动机燃烧室排出的废气,所述废气排气口用于排出废气。Further, the exhaust gas turbine module includes a turbine casing with a turbine rotor arranged inside, and the turbine casing is provided with an exhaust gas intake port and an exhaust gas exhaust port, and the exhaust gas intake port is used for receiving the exhaust gas discharged from the combustion chamber of the engine, The exhaust gas exhaust port is used to discharge exhaust gas.

进一步地,所述空气增压机中,所述机盖与所述废气涡轮模块的涡轮机壳对接形成空气涡轮增压系统的整体外壳,所述机盖内部设置叶轮,同时,所述润滑模块安装在所述机盖内,新鲜空气从空气进气口进入,在所述叶轮的带动下加压后输送给发动机燃烧室进气口。Further, in the air supercharger, the cover is butted with the turbine casing of the exhaust gas turbine module to form an integral casing of the air turbocharger system, an impeller is arranged inside the cover, and at the same time, the lubrication module is Installed in the cover, fresh air enters from the air inlet, and is pressurized by the impeller and then delivered to the air inlet of the combustion chamber of the engine.

进一步地,所述动力传动模块包括传动轴,圆珠滚子轴承和轴承座,Further, the power transmission module includes a transmission shaft, a ball roller bearing and a bearing seat,

轴承座固定在所述空气增压机的机盖的轴心位置,内部设置吸油管道,所述圆珠滚子轴承安装在所述轴承座上,所述传动轴通过过盈配合轴向安装固定在所述圆珠滚子轴承的内环上;所述空气增压机的叶轮与所述废气涡轮模块的涡轮转子紧邻,两者通过键连接安装在所述传动轴上。The bearing seat is fixed at the axial position of the cover of the air supercharger, an oil suction pipe is arranged inside, the ball roller bearing is installed on the bearing seat, and the transmission shaft is axially installed and fixed by interference fit On the inner ring of the ball roller bearing; the impeller of the air supercharger is in close proximity to the turbine rotor of the exhaust gas turbine module, and the two are mounted on the transmission shaft through a key connection.

进一步地,所述润滑模块包括储油室和吸油绳,其中,所述储油室的腔体外壳铸造在所述空气增压机的机盖上,内部装填润滑油;所述吸油绳设置在所述轴承座内,一端浸泡在所述储油室的润滑油中,另一端为松散状态,将从所述储油室吸入的润滑油打散为油雾,对所述圆珠滚子轴承润滑。Further, the lubricating module includes an oil storage chamber and an oil suction rope, wherein the cavity shell of the oil storage chamber is cast on the cover of the air booster, and the interior is filled with lubricating oil; the oil suction rope is arranged on the In the bearing seat, one end is immersed in the lubricating oil in the oil storage chamber, and the other end is in a loose state. lubricating.

进一步地,所述吸油绳以聚丙烯为主绳系,用聚丙烯纤维编织副绳系绕在主绳系上。Further, the oil-absorbing rope is made of polypropylene as the main rope, and the polypropylene fiber braided auxiliary rope is wound around the main rope.

进一步地,所述废气涡轮模块的涡轮机壳靠近所述叶轮的一侧铺设隔热层,所述隔热层以真空隔热板为基层,基层两侧均铺设一层玻璃纤维。Further, a heat insulating layer is laid on the side of the turbine casing of the exhaust gas turbine module close to the impeller, the heat insulating layer uses a vacuum heat insulation board as a base layer, and a layer of glass fiber is laid on both sides of the base layer.

进一步地,所述空气增压机的机盖和所述废气涡轮模块的涡轮机壳通过卡箍连接,所述卡箍的外侧使用合金钢材料,配合所述空气增压机的机盖和所述废气涡轮模块的涡轮机壳外缘铸造而成,内侧用橡胶圈密封。Further, the cover of the air supercharger and the turbine casing of the exhaust gas turbine module are connected by a clamp, and the outer side of the clamp is made of alloy steel material, which is matched with the cover of the air supercharger and all the parts. The outer edge of the turbine casing of the exhaust gas turbine module is cast, and the inner side is sealed with a rubber ring.

进一步地,所述吸油绳为两条,分别设置在所述轴承座内的两条所述吸油管道中。Further, there are two oil suction ropes, which are respectively arranged in the two oil suction pipes in the bearing seat.

所述吸油绳为两条,分别设置在所述轴承座内的两条所述吸油管道中。There are two oil suction ropes, which are respectively arranged in the two oil suction pipes in the bearing seat.

本发明的有益效果在于:The beneficial effects of the present invention are:

1.本发明改变布局,将轴承座从空气增压机和废气涡轮模块之间的位置改变到空气增压机的机盖的轴心位置,将轴承座安装在空气增压机盖包围的空间内,相比于传统方法将轴承座安装在空气增压机盖和废气涡轮机壳之间,有效减少了轴向长度,减少了空间浪费;同时由于所述废气涡轮模块的涡轮机壳同时悬挂空气增压机、动力传动模块和润滑模块,本发明将主要受力从均分给发动机进气口和排气口,改变为单边支撑在发动机排气歧管上,有效减少了结构变形的可能性。1. The present invention changes the layout, changes the bearing seat from the position between the air supercharger and the exhaust gas turbine module to the axial position of the cover of the air supercharger, and installs the bearing seat in the space surrounded by the air supercharger cover Compared with the traditional method, the bearing seat is installed between the air booster cover and the exhaust gas turbine casing, which effectively reduces the axial length and reduces the waste of space; at the same time, because the turbine casing of the exhaust gas turbine module is suspended at the same time Air supercharger, power transmission module and lubrication module, the present invention changes the main force from being equally distributed to the engine air inlet and exhaust port to being supported on the engine exhaust manifold unilaterally, which effectively reduces the structural deformation. possibility.

2.本发明设计了独立的润滑模块,采用专用的增压机润滑油,防止用发动机润滑油对增压机润滑产生的润滑性能欠佳问题。2. The present invention designs an independent lubricating module and adopts special supercharger lubricating oil to prevent the problem of poor lubricating performance caused by the use of engine lubricating oil to lubricate the supercharger.

3.本发明用吸油绳吸入油雾对滚珠滚子轴承润滑,相比于传统方法中将轴承浸润在润滑油中,有效减少了轴承运转的阻力,避免使用溢流设计,实现了几乎无摩擦的独立轴承润滑系统。3. The present invention uses the oil suction rope to inhale the oil mist to lubricate the ball roller bearing. Compared with the traditional method, the bearing is immersed in the lubricating oil, which effectively reduces the resistance of the bearing operation, avoids the use of overflow design, and realizes almost no friction. independent bearing lubrication system.

4.本发明中整个润滑系统设置在进气排气通道两侧,不会阻拦增压系统的气体交换过程,发动机停机后,不会产生热对流交换停止而导致的润滑油过热问题,也避免了涡轮计时器结构复杂容易损坏的缺陷。4. In the present invention, the entire lubricating system is arranged on both sides of the intake and exhaust passages, which will not block the gas exchange process of the supercharging system. After the engine is stopped, the problem of overheating of the lubricating oil caused by the stop of the heat convection exchange will not occur, and the problem of overheating of the lubricating oil will also be avoided. It solves the defect that the structure of the turbo timer is complicated and easy to be damaged.

5.本发明中轴承座和外界空气充分接触,可以充分利用外界空气对流降温。5. In the present invention, the bearing seat is in full contact with the outside air, and the outside air convection can be fully utilized to cool down.

附图说明Description of drawings

为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施例中所需要使用的附图作简单地介绍,通过参考附图会更加清楚的理解本发明的特征和优点,附图是示意性的而不应理解为对本发明进行任何限制,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,可以根据这些附图获得其他的附图。其中:In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings required in the embodiments will be briefly introduced below, and the features and advantages of the present invention will be more clearly understood by referring to the drawings. , the accompanying drawings are schematic and should not be construed as any limitation to the present invention. For those of ordinary skill in the art, other drawings can be obtained from these drawings without creative effort. in:

图1为传统布局涡轮增压系统剖面图;Figure 1 is a cross-sectional view of a turbocharged system with a traditional layout;

图2是本发明的剖面流动示意图;Fig. 2 is the sectional flow schematic diagram of the present invention;

图3是本发明的轴测图;Figure 3 is an axonometric view of the present invention;

图4是本发明的爆炸图;Fig. 4 is the exploded view of the present invention;

图5是润滑系统轴测图;Figure 5 is an axonometric view of the lubrication system;

图6是吸油绳轴测图。Figure 6 is an axonometric view of the oil suction rope.

附图标号说明:Description of reference numbers:

1-机盖,2-吸油绳,3-储油室,4-卡箍,5-隔热层,6-涡轮机壳,7-废气排气口,8-涡轮转子,9-废气进气口,10-传动轴,11-叶轮,12-吸油管道,13-滚珠滚子轴承,14-轴承座,15-空气进气口。1- Cover, 2- Oil suction rope, 3- Oil storage chamber, 4- Clamp, 5- Insulation layer, 6- Turbine casing, 7- Exhaust gas outlet, 8- Turbine rotor, 9- Exhaust gas intake Port, 10-drive shaft, 11-impeller, 12-oil suction pipe, 13-ball roller bearing, 14-bearing seat, 15-air inlet.

具体实施方式Detailed ways

为了能够更清楚地理解本发明的上述目的、特征和优点,下面结合附图和具体实施方式对本发明进行进一步的详细描述。需要说明的是,在不冲突的情况下,本发明的实施例及实施例中的特征可以相互组合。In order to understand the above objects, features and advantages of the present invention more clearly, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present invention and the features in the embodiments may be combined with each other under the condition of no conflict.

在下面的描述中阐述了很多具体细节以便于充分理解本发明,但是,本发明还可以采用其他不同于在此描述的其他方式来实施,因此,本发明的保护范围并不受下面公开的具体实施例的限制。Many specific details are set forth in the following description to facilitate a full understanding of the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited by the specific details disclosed below. Example limitations.

如图1所示,为传统布局涡轮增压系统剖面图,轴承座从空气压缩机和废气涡轮之间,较重的空气增压器和废气涡轮分在左右两端,整体重量分布被均匀分在两端,因此链接空气增压端的冷凝管道口需要承受系统接近一半的重量,极易造成系统结构破坏,同时也会引起较强烈的震动。As shown in Figure 1, it is a cross-sectional view of a turbocharged system with a traditional layout. The bearing seat is between the air compressor and the exhaust gas turbine, and the heavier air supercharger and the exhaust gas turbine are divided at the left and right ends, and the overall weight distribution is evenly divided. At both ends, the condensing pipe port connecting the air pressurizing end needs to bear nearly half of the weight of the system, which can easily cause structural damage to the system and also cause strong vibrations.

本发明旨在设计一种新型结构的涡轮增压机系统,通过改变布局,将轴承座从空气增压机和废气涡轮模块之间的位置改变到空气增压机的机盖的轴心位置,将轴承座安装在空气增压机盖包围的空间内,相比于传统方法将轴承座安装在空气增压机盖和废气涡轮机壳之间,有效减少了轴向长度,减少了空间浪费;同时由于所述废气涡轮模块的涡轮机壳同时悬挂空气增压机、动力传动模块和润滑模块,本发明将主要受力从均分给发动机进气口和排气口,改变为单边支撑在发动机排气歧管上,有效减少了结构变形的可能性。The present invention aims to design a turbocharger system with a new structure. By changing the layout, the bearing seat is changed from the position between the air supercharger and the exhaust gas turbine module to the position of the shaft center of the cover of the air supercharger. The bearing seat is installed in the space surrounded by the air booster cover. Compared with the traditional method of installing the bearing seat between the air booster cover and the exhaust gas turbine casing, the axial length is effectively reduced and space waste is reduced; At the same time, since the turbine casing of the exhaust gas turbine module hangs the air supercharger, the power transmission module and the lubricating module at the same time, the present invention changes the main force from being equally distributed to the engine air intake and exhaust port to being supported on one side by one side. On the engine exhaust manifold, the possibility of structural deformation is effectively reduced.

具体地,如图2-3所示,一种空气涡轮增压系统,包括废气涡轮模块、空气增压机、动力传动模块和润滑模块,其中,Specifically, as shown in Figures 2-3, an air turbocharging system includes an exhaust gas turbine module, an air supercharger, a power transmission module and a lubrication module, wherein,

废气涡轮模块连接发动机燃烧室排气口,废气涡轮模块的涡轮转子8由发动机排出的废气驱动产生转矩;The exhaust gas turbine module is connected to the exhaust port of the engine combustion chamber, and the turbine rotor 8 of the exhaust gas turbine module is driven by the exhaust gas discharged from the engine to generate torque;

动力传动模块设于废气涡轮模块与空气增压机之间,用于传递转矩;润滑模块设于空气增压机的机盖1内;The power transmission module is arranged between the exhaust gas turbine module and the air supercharger for transmitting torque; the lubrication module is arranged in the cover 1 of the air supercharger;

空气增压机在动力传动模块的带动下,对进入的新鲜空气增压,并将其输送到发动机燃烧室。The air booster, driven by the powertrain module, pressurizes the incoming fresh air and delivers it to the engine combustion chamber.

由于注油系统与发动机是分开的,因此可以为精密滚珠轴承使用合适的润滑剂,而不是使用发动机润滑油进行润滑,可以充分利用外界空气冷却,且减少了废气涡轮端的热传导。Since the oil injection system is separate from the engine, a suitable lubricant can be used for the precision ball bearings instead of the engine oil, which can fully utilize the outside air for cooling and reduce the heat transfer at the turbine end of the exhaust gas.

在一些实施方式中,废气涡轮模块包括内部设置涡轮转子8的涡轮机壳6,涡轮机壳6上设有废气进气口9和废气排气口7,废气进气口9用于接收发动机燃烧室排出的废气,废气排气口7用于排出废气。In some embodiments, the exhaust gas turbine module includes a turbine casing 6 with a turbine rotor 8 disposed therein, the turbine casing 6 is provided with an exhaust gas inlet 9 and an exhaust gas outlet 7, and the exhaust gas inlet 9 is used to receive engine combustion The exhaust gas discharged from the chamber, and the exhaust gas exhaust port 7 is used to discharge the exhaust gas.

在一些实施方式中,空气增压机中,机盖1与废气涡轮模块的涡轮机壳6对接形成空气涡轮增压系统的整体外壳,机盖1内部设置叶轮11,同时,润滑模块安装在机盖1内,新鲜空气从空气进气口15进入,在叶轮11的带动下加压后输送给发动机燃烧室进气口。In some embodiments, in the air supercharger, the cover 1 is butted with the turbine casing 6 of the exhaust gas turbine module to form an integral casing of the air turbocharger system, the impeller 11 is arranged inside the cover 1, and at the same time, the lubrication module is installed in the engine Inside the cover 1 , fresh air enters from the air inlet 15 , and is pressurized by the impeller 11 and then delivered to the air inlet of the combustion chamber of the engine.

在一些实施方式中,动力传动模块包括传动轴10,圆珠滚子轴承13和轴承座14,轴承座14固定在空气增压机的机盖1的轴心位置,内部设置吸油管道12,圆珠滚子轴承13安装在轴承座14上,传动轴10通过过盈配合轴向安装固定在圆珠滚子轴承13的内环上;叶轮11与涡轮转子8紧邻,两者通过键连接安装在传动轴10上。In some embodiments, the power transmission module includes a transmission shaft 10, a ball roller bearing 13 and a bearing seat 14. The bearing seat 14 is fixed at the axial center position of the cover 1 of the air supercharger, and an oil suction pipe 12 is arranged inside. The ball roller bearing 13 is installed on the bearing seat 14, the transmission shaft 10 is axially installed and fixed on the inner ring of the ball roller bearing 13 through interference fit; the impeller 11 is close to the turbine rotor 8, and the two are installed on the on the drive shaft 10.

较佳地,空气增压机的叶轮11和废气涡轮模块的转子8直接与传动轴10铸造固定为一个零件。Preferably, the impeller 11 of the air supercharger and the rotor 8 of the exhaust gas turbine module are directly cast and fixed to the transmission shaft 10 as one part.

将轴承座从空气增压机和废气涡轮模块之间的位置改变到空气增压机的机盖的轴心位置,将轴承座安装在空气增压机盖包围的空间内,相比于传统方法将轴承座安装在空气增压机盖和废气涡轮机壳之间,有效减少了轴向长度,减少了空间浪费。Change the bearing seat from the position between the air supercharger and the exhaust gas turbine module to the position of the shaft center of the air supercharger cover, and install the bearing seat in the space surrounded by the air supercharger cover, compared with the traditional method The bearing seat is installed between the air booster cover and the exhaust turbine casing, which effectively reduces the axial length and reduces space waste.

整个润滑系统设置在进气排气通道两侧,不会阻拦增压系统的气体交换过程,发动机停机后,不会产生热对流交换停止而导致的润滑油过热问题,也避免了涡轮计时器结构复杂容易损坏的缺陷。The entire lubrication system is arranged on both sides of the intake and exhaust passages, which will not block the gas exchange process of the supercharging system. After the engine is stopped, the problem of overheating of the lubricating oil caused by the stop of the heat convection exchange will not occur, and the turbo timer structure is also avoided. Complex and easily damaged defects.

在一些实施方式中,润滑模块包括储油室3和吸油绳2,其中,储油室3的腔体外壳铸造在空气增压机的机盖1上,内部装填润滑油;吸油绳2设置在轴承座14内,一端浸泡在储油室3的润滑油中,另一端为松散状态,将从储油室3吸入的润滑油打散为油雾,对圆珠滚子轴承13润滑。相比于传统方法中将轴承浸润在润滑油中,有效减少了轴承运转的阻力,避免使用溢流设计,实现了几乎无摩擦的独立轴承润滑系统。In some embodiments, the lubricating module includes an oil storage chamber 3 and an oil suction rope 2, wherein the cavity shell of the oil storage chamber 3 is cast on the cover 1 of the air booster, and the interior is filled with lubricating oil; the oil suction rope 2 is arranged on the In the bearing seat 14 , one end is immersed in the lubricating oil in the oil storage chamber 3 , and the other end is in a loose state. Compared with the traditional method of immersing the bearing in lubricating oil, the resistance of the bearing running is effectively reduced, the overflow design is avoided, and an almost frictionless independent bearing lubrication system is realized.

在一些实施方式中,吸油绳2以聚丙烯为主绳系,用聚丙烯纤维编织副绳系绕在主绳系上。In some embodiments, the oil absorbing rope 2 is mainly made of polypropylene, and the auxiliary ropes woven with polypropylene fibers are wound around the main rope.

在一些实施方式中,为防止废气涡轮模块中的高温废气加热空气增压机和传动系统,导致传动润滑系统工作异常,废气涡轮模块的涡轮机壳6靠近叶轮11的一侧铺设隔热层5,隔热层5以真空隔热板为基层,基层两侧均铺设一层玻璃纤维。In some embodiments, in order to prevent the high-temperature exhaust gas in the exhaust gas turbine module from heating the air supercharger and the transmission system, resulting in abnormal operation of the transmission lubrication system, a thermal insulation layer 5 is laid on the side of the turbine casing 6 of the exhaust gas turbine module close to the impeller 11 . , the insulation layer 5 is based on a vacuum insulation board, and a layer of glass fiber is laid on both sides of the base layer.

在一些实施方式中,为防止内部连接不紧密导致漏气,空气增压机的机盖1和废气涡轮模块的涡轮机壳6通过卡箍4连接,卡箍4的外侧使用合金钢材料,配合空气增压机的机盖1和废气涡轮模块的涡轮机壳6外缘铸造而成,内侧用橡胶圈密封。In some embodiments, in order to prevent air leakage caused by the insufficiency of the internal connection, the cover 1 of the air supercharger and the turbine casing 6 of the exhaust gas turbine module are connected by a clamp 4, and the outer side of the clamp 4 is made of alloy steel, which is matched with The cover 1 of the air supercharger and the outer edge of the turbine casing 6 of the exhaust gas turbine module are cast, and the inner side is sealed with a rubber ring.

在一些实施方式中,吸油绳2为两条,分别设置在轴承座14内的两条吸油管道12中。In some embodiments, there are two oil suction ropes 2 , which are respectively arranged in the two oil suction pipes 12 in the bearing seat 14 .

在本发明中,除非另有明确的规定和限定,术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解,例如,可以是固定连接,也可以是可拆卸连接,或成一体;可以是机械连接,也可以是电连接;可以是直接相连,也可以通过中间媒介间接相连,可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言,可以根据具体情况理解上述术语在本发明中的具体含义。In the present invention, unless otherwise expressly specified and limited, the terms "installed", "connected", "connected", "fixed" and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection , or integrated; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of the two elements or the interaction relationship between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

在本发明中,除非另有明确的规定和限定,第一特征在第二特征之“上”或之“下”可以包括第一和第二特征直接接触,也可以包括第一和第二特征不是直接接触而是通过它们之间的另外的特征接触。而且,第一特征在第二特征“之上”、“上方”和“上面”包括第一特征在第二特征正上方和斜上方,或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”包括第一特征在第二特征正下方和斜下方,或仅仅表示第一特征水平高度小于第二特征。In the present invention, unless otherwise expressly specified and limited, a first feature "on" or "under" a second feature may include the first and second features in direct contact, or may include the first and second features Not directly but through additional features between them. Also, the first feature being "above", "over" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is level higher than the second feature. The first feature is "below", "below" and "below" the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature has a lower level than the second feature.

在本发明中,术语“第一”、“第二”、“第三”、“第四”仅用于描述目的,不能理解为指示或暗示相对重要性。术语“多个”指两个或两个以上,除非另有明确的限定。In the present invention, the terms "first", "second", "third", and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The term "plurality" refers to two or more, unless expressly limited otherwise.

以上所述仅为本发明的优选实施例而已,并不用于限制本发明,对于本领域的技术人员来说,本发明可以有各种更改和变化。凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims (9)

1.一种空气涡轮增压系统,其特征在于,包括废气涡轮模块、空气增压机、动力传动模块和润滑模块,其中,1. an air turbocharging system, is characterized in that, comprises exhaust gas turbine module, air supercharger, power transmission module and lubricating module, wherein, 所述废气涡轮模块连接发动机燃烧室排气口,所述废气涡轮模块的涡轮转子(8)由发动机排出的废气驱动产生转矩;The exhaust gas turbine module is connected to the exhaust port of the engine combustion chamber, and the turbine rotor (8) of the exhaust gas turbine module is driven by the exhaust gas discharged from the engine to generate torque; 所述动力传动模块设于废气涡轮模块与所述空气增压机之间,用于传递转矩;所述润滑模块设于所述空气增压机的机盖(1)内;The power transmission module is arranged between the exhaust gas turbine module and the air supercharger for transmitting torque; the lubrication module is arranged in the cover (1) of the air supercharger; 所述空气增压机在所述动力传动模块的带动下,对进入的新鲜空气增压,并将其输送到发动机燃烧室。The air booster, driven by the power transmission module, pressurizes the incoming fresh air and delivers it to the engine combustion chamber. 2.根据权利要求1所述的空气涡轮增压系统,其特征在于,所述废气涡轮模块包括内部设置涡轮转子(8)的涡轮机壳(6),涡轮机壳(6)上设有废气进气口(9)和废气排气口(7),所述废气进气口(9)用于接收发动机燃烧室排出的废气,所述废气排气口(7)用于排出废气。2. The air turbocharging system according to claim 1, wherein the exhaust gas turbine module comprises a turbine casing (6) with a turbine rotor (8) arranged inside, and the turbine casing (6) is provided with exhaust gas An intake port (9) and an exhaust gas exhaust port (7), the exhaust gas intake port (9) is used for receiving the exhaust gas discharged from the combustion chamber of the engine, and the exhaust gas exhaust port (7) is used for discharging the exhaust gas. 3.根据权利要求1所述的空气涡轮增压系统,其特征在于,所述空气增压机中,所述机盖(1)与所述废气涡轮模块的涡轮机壳(6)对接形成空气涡轮增压系统的整体外壳,所述机盖(1)内部设置叶轮(11),同时,所述润滑模块安装在所述机盖(1)内,新鲜空气从空气进气口(15)进入,在所述叶轮(11)的带动下加压后输送给发动机燃烧室进气口。3. The air turbocharging system according to claim 1, characterized in that, in the air supercharger, the cover (1) is butted with the turbine casing (6) of the exhaust gas turbine module to form air An integral casing of a turbocharging system, an impeller (11) is arranged inside the cover (1), and at the same time, the lubrication module is installed in the cover (1), and fresh air enters from an air inlet (15) , driven by the impeller (11), pressurized and then delivered to the intake port of the engine combustion chamber. 4.根据权利要求1-3之一所述的空气涡轮增压系统,其特征在于,所述动力传动模块包括传动轴(10),圆珠滚子轴承(13)和轴承座(14),4. The air turbocharging system according to any one of claims 1-3, wherein the power transmission module comprises a transmission shaft (10), a ball roller bearing (13) and a bearing seat (14), 轴承座(14)固定在所述空气增压机的机盖(1)的轴心位置,内部设置吸油管道(12),所述圆珠滚子轴承(13)安装在所述轴承座(14)上,所述传动轴(10)通过过盈配合轴向安装固定在所述圆珠滚子轴承(13)的内环上;所述空气增压机的叶轮(11)与所述废气涡轮模块的涡轮转子(8)紧邻,两者通过键连接安装在所述传动轴(10)上。The bearing seat (14) is fixed at the axial center position of the cover (1) of the air supercharger, an oil suction pipe (12) is arranged inside, and the ball roller bearing (13) is mounted on the bearing seat (14) ), the drive shaft (10) is axially mounted and fixed on the inner ring of the ball roller bearing (13) through an interference fit; the impeller (11) of the air supercharger and the exhaust gas turbine The turbine rotors (8) of the modules are adjacent to each other, and the two are mounted on the transmission shaft (10) through a key connection. 5.根据权利要求1-4之一所述的空气涡轮增压系统,其特征在于,所述润滑模块包括储油室(3)和吸油绳(2),其中,所述储油室(3)的腔体外壳铸造在所述空气增压机的机盖(1)上,内部装填润滑油;所述吸油绳(2)设置在所述轴承座(14)内,一端浸泡在所述储油室(3)的润滑油中,另一端为松散状态,将从所述储油室(3)吸入的润滑油打散为油雾,对所述圆珠滚子轴承(13)润滑。5. The air turbocharging system according to any one of claims 1-4, wherein the lubrication module comprises an oil storage chamber (3) and an oil suction rope (2), wherein the oil storage chamber (3) ) cavity shell is cast on the cover (1) of the air supercharger, and lubricating oil is filled inside; the oil suction rope (2) is arranged in the bearing seat (14), and one end is immersed in the storage tank (14). The other end of the lubricating oil in the oil chamber (3) is in a loose state, and the lubricating oil sucked from the oil storage chamber (3) is dispersed into oil mist to lubricate the ball roller bearing (13). 6.根据权利要求5所述的空气涡轮增压系统,其特征在于,所述吸油绳(2)以聚丙烯为主绳系,用聚丙烯纤维编织副绳系绕在主绳系上。6 . The air turbocharging system according to claim 5 , wherein the oil suction rope ( 2 ) is made of polypropylene as the main rope, and a polypropylene fiber braided auxiliary rope is wound around the main rope. 7 . 7.根据权利要求3所述的空气涡轮增压系统,其特征在于,所述废气涡轮模块的涡轮机壳(6)靠近所述叶轮(11)的一侧铺设隔热层(5),所述隔热层(5)以真空隔热板为基层,基层两侧均铺设一层玻璃纤维。7. The air turbocharging system according to claim 3, characterized in that, a heat insulating layer (5) is laid on the side of the turbine casing (6) of the exhaust gas turbine module close to the impeller (11), so The heat insulating layer (5) uses a vacuum heat insulating board as a base layer, and a layer of glass fiber is laid on both sides of the base layer. 8.根据权利要求3所述的空气涡轮增压系统,其特征在于,所述空气增压机的机盖(1)和所述废气涡轮模块的涡轮机壳(6)通过卡箍(4)连接,所述卡箍(4)的外侧使用合金钢材料,配合所述空气增压机的机盖(1)和所述废气涡轮模块的涡轮机壳(6)外缘铸造而成,内侧用橡胶圈密封。8. The air turbocharging system according to claim 3, characterized in that the cover (1) of the air supercharger and the turbine casing (6) of the exhaust gas turbine module pass through a clamp (4) For connection, the outer side of the clamp (4) is made of alloy steel, which is cast together with the cover (1) of the air supercharger and the outer edge of the turbine casing (6) of the exhaust gas turbine module. Rubber ring seal. 9.根据权利要求5所述的空气涡轮增压系统,其特征在于,所述吸油绳(2)为两条,分别设置在所述轴承座(14)内的两条所述吸油管道(12)中。9 . The air turbocharging system according to claim 5 , characterized in that there are two oil suction ropes ( 2 ), which are respectively provided in the two oil suction pipes ( 12 ) in the bearing seat ( 14 ). 10 . )middle.
CN202210734950.1A 2022-06-27 2022-06-27 an air turbo system Pending CN115163291A (en)

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