CN111594313A - Engine accessory driving system and automobile - Google Patents
Engine accessory driving system and automobile Download PDFInfo
- Publication number
- CN111594313A CN111594313A CN201910126328.0A CN201910126328A CN111594313A CN 111594313 A CN111594313 A CN 111594313A CN 201910126328 A CN201910126328 A CN 201910126328A CN 111594313 A CN111594313 A CN 111594313A
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- China
- Prior art keywords
- engine
- drive system
- alternator
- accessory drive
- engine accessory
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B67/00—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for
- F02B67/04—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus
- F02B67/06—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus driven by means of chains, belts, or like endless members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
- F02B63/06—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B77/00—Component parts, details or accessories, not otherwise provided for
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
The application discloses engine accessory actuating system and car. The engine accessory drive system includes: a crankshaft pulley; an alternator driven by the crank pulley through a belt; a tensioner for tensioning the belt; and a first auxiliary bracket provided between the alternator and the engine for reducing vibration of the alternator. The engine accessory drive system according to the invention can reduce vibration noise.
Description
Technical Field
The present invention relates to the field of automobiles, and in particular, to an engine accessory drive system and an automobile with such an engine accessory drive system.
Background
The accessory drive system is an important subsystem of the engine, and the power transmission of the accessory drive system is to transmit the torque generated by the combustion of the engine to each accessory through a crankshaft and a crankshaft pulley by a V-belt. The crankshaft pulley drives each accessory to rotate through the multi-wedge belt, wherein the generator and the air-conditioning compressor are important components of an engine accessory driving system, and the vibration noise performance of the engine and the whole vehicle can be influenced by the mode height of the generator and the air-conditioning compressor because the weight of the alternating current generator and the air-conditioning compressor is relatively heavy, and the mechanical vibration can be generated by the rotation motion of a generator rotor and the reciprocating motion of a compressor plunger piston in the working process of the generator and the air-conditioning compressor. In accessory drive systems, the air conditioning compressor is typically placed at the tight side of the system, since the drive torque required by the air conditioning compressor is greatest among all the accessories. The generator arrangement also needs to be located close to the system, typically immediately after the air conditioning compressor. For the engine body, the engine body comprises a cylinder body, a cylinder cover and an oil pan, and corresponding mounting points are required to be provided for the generator and the compressor in structural design.
Disclosure of Invention
The invention provides an engine accessory drive system capable of reducing vibration noise.
According to one aspect of the present invention, an engine accessory drive system is provided, comprising:
a crankshaft pulley;
an alternator driven by the crank pulley through a belt;
a tensioner for tensioning the belt; and
a first auxiliary mount disposed between the alternator and the engine for reducing vibration of the alternator.
According to the engine accessory drive system of one aspect of the present invention, the first accessory bracket is designed according to a first order mode shape of the alternator.
According to the engine accessory drive system of one aspect of the present invention, the first auxiliary bracket is connected to the alternator and the engine by bolts, and at least two mounting points for the bolts are provided on the alternator and the engine, respectively.
According to the engine accessory drive system of one aspect of the present invention, the first auxiliary bracket is disposed between the alternator and the engine head or between the alternator and the engine block.
According to one aspect of the present invention, an engine accessory drive system is provided, further comprising an air conditioning compressor driven by the crank pulley via a belt.
According to an aspect of the present invention, there is provided an engine accessory drive system further comprising a second auxiliary bracket provided between the air conditioner compressor and an engine for reducing vibration of the air conditioner compressor.
According to the engine accessory drive system of one aspect of the present invention, the second auxiliary bracket is designed according to a first order mode of vibration of the air conditioner compressor.
According to the engine accessory drive system provided by one aspect of the invention, the second auxiliary bracket is respectively connected with the air-conditioning compressor and the engine through bolts, and at least two mounting points for the bolts are respectively arranged on the air-conditioning compressor and the engine.
According to the engine accessory drive system of one aspect of the present invention, the second auxiliary bracket is disposed between the air conditioner compressor and the engine head or between the air conditioner compressor and the engine block.
The invention further relates to a motor vehicle having such an engine accessory drive system. Since the automobile is provided with the engine accessory drive system according to the present invention, it is possible to have advantages as described above.
The beneficial effects of the invention include: the auxiliary support can effectively reduce the vibration of the alternating current generator and/or the air conditioner compressor and reduce the vibration noise of the engine accessory driving system.
Drawings
The disclosure of the present invention is illustrated with reference to the accompanying drawings. It is to be understood that the drawings are designed solely for the purposes of illustration and not as a definition of the limits of the invention. In the drawings, like reference numerals are used to refer to like parts unless otherwise specified. Wherein:
FIG. 1 schematically illustrates an engine accessory drive system according to one embodiment of the present invention;
FIG. 2 schematically illustrates an enlarged view of a proposed engine accessory drive system according to one embodiment of the present invention;
fig. 3 schematically shows an auxiliary bracket in the proposed engine accessory drive system according to an embodiment of the invention.
Detailed Description
It is easily understood that according to the technical solution of the present invention, a person skilled in the art can propose various alternative structures and implementation ways without changing the spirit of the present invention. Therefore, the following detailed description and the accompanying drawings are merely illustrative of the technical aspects of the present invention, and should not be construed as all of the present invention or as limitations or limitations on the technical aspects of the present invention.
The terms of orientation of up, down, left, right, front, back, top, bottom, and the like referred to or may be referred to in this specification are defined relative to the configuration shown in the drawings, and are relative terms, and thus may be changed correspondingly according to the position and the use state of the device. Therefore, these and other directional terms should not be construed as limiting terms.
In the following description, various parameters and components are described for different configurations of embodiments, and these specific parameters and components are only by way of example and do not limit the embodiments of the present application.
An embodiment according to the invention is shown in connection with fig. 1, 2 and 3, where it can be seen that: the engine accessory drive system includes: a crankshaft pulley 1; an alternator 4 driven by the crank pulley through a belt; a tensioner 7 for tensioning the belt; an idler 8; and a first auxiliary bracket 5 provided between the alternator and the engine for reducing vibration of the alternator. The first auxiliary support is designed according to the first-order mode shape of the alternator, namely, the constraint is exerted in the direction of the first-order mode shape of the alternator. The first order mode shape may be obtained by finite element analysis or experimental mode analysis. The vibration of the alternating-current generator can be effectively reduced through the first auxiliary support, and the vibration noise of the engine accessory driving system is reduced.
The first auxiliary bracket is connected to the alternator and the engine by bolts 9, and at least two mounting points for bolts are provided on the alternator and the engine, respectively (refer to fig. 2 and 3).
The first auxiliary bracket is arranged between the alternator 4 and the engine head 6 or between the alternator 4 and the engine block 3.
The engine accessory drive system also includes an air conditioning compressor 2, which is belt driven by the crank pulley. The engine accessory drive system further includes a second auxiliary mount disposed between the air conditioning compressor and the engine for reducing vibration of the air conditioning compressor. The second auxiliary support can effectively reduce the vibration of the air-conditioning compressor and reduce the vibration noise of the engine accessory driving system. The second auxiliary bracket is designed according to a first-order vibration mode of the air conditioner compressor. The second auxiliary support is connected with the air conditioner compressor and the engine through bolts respectively, and at least two mounting points for the bolts are arranged on the air conditioner compressor and the engine respectively. The second auxiliary support is arranged between the air-conditioning compressor and an engine cylinder cover or between the air-conditioning compressor and the engine cylinder body.
The method comprises the steps of obtaining a first-order mounting mode of an engine accessory through finite element mode analysis or test mode analysis, and designing an auxiliary support (a first auxiliary support and a second auxiliary support) based on the first-order mode vibration mode, wherein the auxiliary support comprises an auxiliary support mounting boss, an auxiliary support structure, an auxiliary support material and an auxiliary support mounting bolt. The first-order installation mode of the alternating current generator and the air conditioner compressor is improved, and the problem of vibration noise caused by low mode of the generator and the air conditioner compressor is avoided within the full rotating speed range of the engine.
The auxiliary support mounting bosses are respectively arranged on the cylinder cover and the shell of the alternating current generator (or the air conditioner compressor), and the number of the auxiliary support mounting bosses is selected according to the arrangement space and the position. The auxiliary support can be made of a stamped steel plate or a high-pressure die-casting aluminum alloy or cast iron, preferably a high-strength cold-rolled steel plate, the thickness of the material is generally 4-6 mm, optionally a high-pressure die-casting aluminum alloy, the thickness is generally 4-6 mm, optionally cast iron, and the thickness is generally 4-6 mm. The auxiliary support mounting bolts are chosen to be of reasonable length, for example bolts of nominal diameter 8 mm.
The mounting of the alternator and air conditioning compressor to the engine may be by way of an intermediate transition bracket. The transmission path of the structural noise is as follows: structural vibration is generated by an alternating current generator or an air conditioner compressor, and force and displacement caused by the vibration are transmitted to the intermediate transition support, transmitted to the cylinder body through the intermediate transition support, transmitted to the power assembly suspension support, and finally transmitted to the vehicle body and further transmitted to the cab.
The alternating current generator and the air conditioner compressor can also be installed on the engine body in a direct installation mode, so that the system cost can be reduced, the installation mode of the alternating current generator and the air conditioner compressor is improved, and good vibration noise performance is obtained.
The engine accessory drive system according to the invention comprises the following advantages: first, when the rigidity of the engine body (cylinder block, cylinder head, oil pan) cannot be optimized, the mounting mode of the accessories can be further improved under the restriction of the existing layout space. Secondly, the material of the bracket can be flexibly selected according to the practical application, and the structure of the bracket can be flexibly designed.
The invention also comprises a motor vehicle having an engine accessory drive system according to any one or more of the embodiments described above, the technical features and technical effects thereof being comparable to those of the previous description and therefore not being described in detail herein.
The technical scope of the present invention is not limited to the above description, and those skilled in the art can make various changes and modifications to the above-described embodiments without departing from the technical spirit of the present invention, and such changes and modifications should fall within the protective scope of the present invention.
Claims (10)
1. An engine accessory drive system, comprising:
a crankshaft pulley;
an alternator driven by the crank pulley through a belt;
a tensioner for tensioning the belt; and
a first auxiliary mount disposed between the alternator and the engine for reducing vibration of the alternator.
2. The engine accessory drive system of claim 1, wherein the first accessory bracket is designed according to a first order mode shape of the alternator.
3. The engine accessory drive system of claim 1, wherein the first auxiliary bracket is coupled to the alternator and the engine via a bolt, respectively, and wherein at least two mounting points for the bolt are provided on the alternator and the engine, respectively.
4. The engine accessory drive system of claim 1, wherein the first accessory bracket is disposed between the alternator and an engine head or between the alternator and an engine block.
5. The engine accessory drive system of claim 1, further comprising an air conditioning compressor driven by the crank pulley through a belt.
6. The engine accessory drive system of claim 5, further comprising a second auxiliary bracket disposed between the air conditioner compressor and the engine for reducing vibration of the air conditioner compressor.
7. The engine accessory drive system of claim 6, wherein the second accessory bracket is designed according to a first order mode shape of the air conditioning compressor.
8. The engine accessory drive system of claim 6, wherein the second auxiliary bracket is connected to the air conditioner compressor and the engine by bolts, respectively, and at least two mounting points for bolts are provided on the air conditioner compressor and the engine, respectively.
9. The engine accessory drive system of claim 6, wherein the second auxiliary bracket is disposed between the air conditioning compressor and an engine head or between the air conditioning compressor and an engine block.
10. An automobile, characterized in that it comprises an engine accessory drive system according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910126328.0A CN111594313A (en) | 2019-02-20 | 2019-02-20 | Engine accessory driving system and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910126328.0A CN111594313A (en) | 2019-02-20 | 2019-02-20 | Engine accessory driving system and automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111594313A true CN111594313A (en) | 2020-08-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910126328.0A Pending CN111594313A (en) | 2019-02-20 | 2019-02-20 | Engine accessory driving system and automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111594313A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030220164A1 (en) * | 2002-05-23 | 2003-11-27 | Goro Tamai | Crank drive belt system with triple pulley tensioner |
| CN101144422A (en) * | 2007-08-23 | 2008-03-19 | 奇瑞汽车有限公司 | Engine accessory system |
| CN101158315A (en) * | 2007-11-07 | 2008-04-09 | 奇瑞汽车有限公司 | Vehicular engine accessory system |
| CN201531305U (en) * | 2009-08-03 | 2010-07-21 | 众泰控股集团有限公司 | Novel power generator positioning bracket |
| CN201560881U (en) * | 2009-10-16 | 2010-08-25 | 中国第一汽车集团公司 | Integral type multifunctional support installed with power-started generator and tensioning wheel |
| CN102297019A (en) * | 2011-08-11 | 2011-12-28 | 重庆长安汽车股份有限公司 | Automobile engine front end accessory gear system |
| CN104329167A (en) * | 2014-08-29 | 2015-02-04 | 力帆实业(集团)股份有限公司 | Power generator bracket and automobile |
| CN207554187U (en) * | 2017-10-11 | 2018-06-29 | 东风朝阳朝柴动力有限公司 | The double air-conditioning train deployment mechanisms of two valve diesel engines |
-
2019
- 2019-02-20 CN CN201910126328.0A patent/CN111594313A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030220164A1 (en) * | 2002-05-23 | 2003-11-27 | Goro Tamai | Crank drive belt system with triple pulley tensioner |
| CN101144422A (en) * | 2007-08-23 | 2008-03-19 | 奇瑞汽车有限公司 | Engine accessory system |
| CN101158315A (en) * | 2007-11-07 | 2008-04-09 | 奇瑞汽车有限公司 | Vehicular engine accessory system |
| CN201531305U (en) * | 2009-08-03 | 2010-07-21 | 众泰控股集团有限公司 | Novel power generator positioning bracket |
| CN201560881U (en) * | 2009-10-16 | 2010-08-25 | 中国第一汽车集团公司 | Integral type multifunctional support installed with power-started generator and tensioning wheel |
| CN102297019A (en) * | 2011-08-11 | 2011-12-28 | 重庆长安汽车股份有限公司 | Automobile engine front end accessory gear system |
| CN104329167A (en) * | 2014-08-29 | 2015-02-04 | 力帆实业(集团)股份有限公司 | Power generator bracket and automobile |
| CN207554187U (en) * | 2017-10-11 | 2018-06-29 | 东风朝阳朝柴动力有限公司 | The double air-conditioning train deployment mechanisms of two valve diesel engines |
Non-Patent Citations (1)
| Title |
|---|
| 高迎宾 等: "某船用柴油机发电机支架系统仿真计算分析", 《装备制造技术》 * |
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Application publication date: 20200828 |
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| RJ01 | Rejection of invention patent application after publication |