• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    FIELD OF THE INVENTION The invention relates to engine building and reduces engine noise. The lower casing 7 is installed on the longitudinal beams 6 of the chassis frame of the car. The upper casing 8 consists of front and rear parts 21 and 25. The front part 21 is placed between the front and rear walls 22 and 23 of the cab 2 of the car. The rear part 25 is located behind the rear wall 23 of the cabin 2. The cross section of the outlet 27 of the labyrinth channel 26 is perpendicular to the cross section of the inlet 28. The flow sections of the holes 27 and 28 are connected by a ratio of 6/5: 9/7. The division of the capsule into two parts by a horizontal dividing plane so that the casing 8 is a stationary part of the cabin with which it forms a compact whole, and the casing 7 forms a compact whole with the beams 6 of the chassis frame, provides a tight fit and thus an optimal damping of noise and a reduction in labor intensity care for the capsule and its repair. 5 h. item f-ly, 2 ill. & (L 51 25 oe to o O5
    公开号:SU1320476A1
    申请号:SU847773312
    申请日:1984-02-08
    公开日:1987-06-30
    发明作者:Дрегомир Угер；Ярослав Богач
    申请人:Татра,Н.П.Копривнице (Инопредприятие)；
    IPC主号:
    专利说明:

    FIELD OF THE INVENTION The invention relates to mechanical engineering, in particular engine-building, namely to capsules for an internal combustion drive engine.
    A known capsule for a drive engine of an internal combustion, predominantly a car with a cab and a chassis frame, containing upper and lower casings lined with sound, ayush, the material and forming a labyrinth channel with inlet and exhaust ports (see US Patent No. 3666042, t. 181- 33, published in 1972).
    However, the well-known capsule effectively reduces engine noise.
    FIG. 1 shows a capsule, a longitudinal section; in fig. 2 - the same, cross section in the place of the exit channel behind a cabin.
    The capsule for the internal combustion engine 1 with a clutch is predominantly a car with a cab 2 and a chassis frame 3 installed with four brackets 4 and elastic suspensions 5 on two longitudinal beams 6, contains lower air 7 and upper casing 8. Longitudinal beams 6 have a closed profile with outer 9 and inner Yu rods, on the outer rods 9 they are equipped with longitudinal brackets 11. The lower casing 7 is fixed to the lower shelves 14 of the longitudinal beam 6 by means of bolts 12 and sealing rubber 13. The lower casing 7 is made from the front 1.5 and rear 16 parts, which end with edges 17 and 18 located in a planar-KoctH formed by upper shelves 19 of longitudinal beams 6 and dividing between the lower case 7 and the upper case 8.
    The upper casing 8 is formed by side walls 20 located along the entire length of the engine 1, and consists of a front part 21 placed between the front 22 and rear 23 walls of the cab 2 of the car and the cover 24 closed, and the rear part 25 located behind the rear wall 23 of the cabin 2 with which it forms a channel 26 with an outlet 27, made perpendicular to the cross-section of the inlet 28 of the capsule. Channel 26 has sound absorbing elements 29, 30, 31 which form an exhaust silencer, with sound absorbing element 29 connecting the rear part 25 of the upper casing 8 to the rear wall 23 of the cab 2.
    In the front part 21, the upper casing 8 is closed by an inclined wall 32 with an opening 33 to which a funnel-shaped channel 35 is fed from the fan 34 of the engine 1, which is sealed on the inclined wall 32 by the seal 36. From the inclined wall 32 of the upper casing 8 to the front wall 22 of the cab 2 maze channel 37 with inlet 28 for inlet
    cooling air to the fan 34 of the engine 1. In the channel 37 is installed sound-absorbing elements 38, 39, 40, forming the intake silencer. Bottom edge
    41 of the contour of the upper casing 8 is provided with a seal 42, which seals the joint of the upper 8 and lower 7 casing. The upper casing 8 with the cabin 2 and the frame 3 form a single whole, and the inner surface of the upper casing 8 is internally lined with sound-absorbing material.
    The flow sections of the outlet 27 and inlet 28 holes are related by a ratio of 6/5: 9/7.
    5 Behind the fan 34 on the engine 1 there is a metal sheet 43 fitted with a slit 44, through the last cooling air enters the volume 45 in which the suction pipe 46 is placed. In the rear part 16 of the lower casing 7 holes 47, 48, 49 are placed which passed the exhaust pipe 50, the suction pipe 46 and the connecting shaft (not shown).
    Cab 2 in the front part is mounted on buffer 51 in rubber suspensions 52, around which it is tilted around the axles 53, and in the rear part in working position, cab 2 is installed in rubber suspensions 54 on frame 3.
    The rear part 25 of the upper casing 8 can be made integral with the cab 2 of the car or the longitudinal beam of the 6-frame 3 chassis and the lower casing 7.
    The capsule for the internal combustion engine drive works as follows.
    5 The cooling air through the inlet 28, through the slots of the labyrinth channel 37, formed by sound-absorbing elements 38-40, enters the capsule, cools the engine 1 and through the exhaust silencer formed by sound-absorbing
     elements 29-31, and the outlet 27 without a significant increase in resistance, with a uniform reduction of noise in the area of the engine 1 is emitted into the atmosphere. Engine cooling eliminates the increase in the temperature of the engine transmission bearings and fuel consumption. Due to the emission of heated air behind the cab 2 vertically upwards, its effect on the temperature in the car's gearbox is eliminated. The division of the capsule into two parts
    0 by a horizontal dividing plane, in which the upper casing 8 is a fixed part of the cab 2, with which it forms a compact whole, and the lower casing 7 forms a compact whole with longitudinal beams 6 of the chassis frame 3, ensures a tight fit and, thus, optimal damping of noise, the vitality of the capsule and the reduction of the laboriousness of its maintenance and repair.
    权利要求:
    Claims (6)
    [1]
    1. Capsule for an internal combustion engine drive, predominantly a car with a cab and a chassis frame, containing upper and lower 1st covers, lined with sound-absorbing material and forming a labyrinth channel with intake and exhaust ports, characterized in that the lower casing is installed on the longitudinal beams of the car chassis , the upper casing consists of the front part, located between the front and rear walls of the cab of the car, and the rear part, located behind the rear wall of the cabin, the cross-section of the outlet Execute the perpendicular cross-section of the inlet and outlet flow section, and the inlet openings associated ratio 6/5: 9/7.
    [2]
    2. The capsule according to claim 1, characterized in that the rear part of the upper case is integral with the cabin of the vehicle.
    [3]
    3. Capsule according to claim 1, characterized in that the rear part of the upper case is made integral with the longitudinal frame frame and the lower case.
    [4]
    4. Capsule on PP. 1-3, characterized in that in the labyrinth channel near
    .. the inlet housed sound-absorbing elements.
    [5]
    5. Capsule on PP. 1-4, characterized in that sound-absorbing elements are placed in the labyrinth channel near the outlet opening.
    five
    [6]
    6. Capsule on PP. 1-5, characterized in that the upper and lower casings are interconnected in the plane formed by the upper shelves of the longitudinal beams of the frame and the front and rear edges of the lower enclosure.
    7/213
    FIG. 2
    类似技术:
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    US3666042A|1972-05-30|Method for eliminating noise from a motor power unit and device for the purpose
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    US4197826A|1980-04-15|Internal combustion engine having a noise-suppressing encapsulation
    US3853201A|1974-12-10|Quiet snowmobile
    US3870117A|1975-03-11|Snowmobile motor mounting
    US3970161A|1976-07-20|Motor vehicle
    JP2775037B2|1998-07-09|Soundproof enclosure for swing hydraulic excavator
    US2262467A|1941-11-11|Engine enclosure
    JPH082420Y2|1996-01-29|Engine room
    同族专利:
    公开号 | 公开日
    CS233253B1|1985-02-14|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE4137706A1|1991-11-15|1993-05-19|Bayerische Motoren Werke Ag|Sound absorbing heat insulation - is for motor vehicles and has solid insulation filled into cavities|
    DE4237513A1|1992-11-07|1994-05-11|Helmut Pelzer|Noise insulation panel esp. for engine compartment|
    RU2489276C1|2010-05-08|2013-08-10|Фольксваген Акциенгезелльшафт|Fastener at vehicle bottom|
    RU2640379C1|2016-10-24|2017-12-28|Открытое акционерное общество "АВТОВАЗ" |Protective screen of technical means|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CS93183A|CS233253B1|1983-02-10|1983-02-10|Cowling for driving engine of vehicle|
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