• 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:
    1. INTERNAL COMBUSTION ENGINE, containing soundproof casing and blower, made in the form of a drive wheel with izinlly channels and a cylindrical recess, characterized in that, in order to improve noise suppression and compactness, the drive wheel is made of two concentric parts, external and internal interconnected at least through an elastic liner, and provided with a protective sheath made of an insulating plate and located at its end and in a cylindrical recess, with a part of hibernation disposed in the recess, connected to the blower. . 2. An engine according to claim 1, characterized in that in part of the shell located in the recess, CO, additional suction curved channels are made.
    公开号:SU1109063A3
    申请号:SU813271755
    申请日:1981-04-14
    公开日:1984-08-15
    发明作者:Кирхвегер Карл
    申请人:Дипл.-Инж.Др.Др.Х.Ц.Ханс Лист；
    IPC主号:
    专利说明:

    with
    about a
    00 The invention relates to mechanical engineering and can be used in internal combustion engines. The engine of internal combustion is known, which contains a soundproof casing and a blower made in the form of a drive wheel with curved cords and a cylindrical recess fl. A disadvantage of the known engine is increased noise level. The purpose of the invention is to improve noise absorption and compactness. This goal is achieved by the fact that in an internal combustion engine that contains a soundproof casing and a blower made in the form of a drive wheel with curved channels and a cylindrical recess, the drive wheel is made of two concentric parts, outer and inner, connected by melody through at least one elastic liner, and provided with a protective sheath, made of sound-insulating plastic and located on its end face n in a cylindrical recess, with part of the shell spaced in the recess, inena blower. In the part of the shell located in the recess, additional suction-curved filaments can be made. FIG. 1 shows a cross section of an engine with a casing; FIG. 2 - view and drive wheel. Engine 1 includes a crankshaft 2, a drive wheel 3. consists of two parts, an outer 4 and an inner 5. The outer part 4 of the wheel 3 has keyways 6, and between parts 4 and 5 of the wheel there is an elastic cont. The drive wheel 3 is located outside the sound insulation casing 8, the through hole 9 is covered with the casing 8, the edge of the hole 9 enters the groove 10 with the formation of a gap 11. In the inner part 5 of the wheel 3 on the side located opposite the opening 9, there is a concentric recess 12, the depth of which is approximately two thirds of the width of the wheel 3. In the inner part 5 also the channels 13 are made, passing from the recess 12 to the outside of the groove 10 63 Channels 13 are located at even angular intervals. For sound insulation of the end of the inner part 5, as well as channels 13, directly connected to the inner space of the casing 8, the shell 14 is fastened on the outer part 4 with screws 15. The shell 14 is made of sound insulating plastic and has the shape of a protective disk 16, on which the area of the undercut 12 is reinforced part 17 with suction channels 18. The device works as follows. As soon as the engine 1 starts up and the crankshaft 2 comes into rotation, it drives the drive wheel 3, in the protective sheath 14 of which the channels 18 are located, running from the middle to the ENVIRONMENT. The air contained in the channels 18 flows under the action of centrifugal force to the outside, which leads to the intake of air from the environment surrounding the engine. Thus, the air in the recess 12 of the drive wheel 3 is slightly compressed. Pre-compressed air now flows through the channels 13, which are located in the inner part 5 and pass from the inside to the inside of the casing. The drive wheel 3 operates in this way according to the type of two-stage centrifugal pump. In order to have as little leakage loss as possible when supplying air to the internal cavity of the housing, the compressed air discharged from the internal part 5 is bent outward by the edge of the passage 9 of the capsule 8 and deflected inside the cavity. During operation of the engine 1, sound vibrations through the end of the crankshaft 2 or the drive wheel 3 are transmitted to the environment. To attenuate these vibrations, an elastic insert 7 is installed between the inner 5 and outer 4 parts of the drive wheel 3, which prevents the transmission of sound vibrations from the inner part 5 to the outer part 4. The propagation of sound vibrations in the radial direction from the drive wheel 3 into the surrounding space does not pass . However, also
    prevent the propagation of sound vibrations in the axial direction of the crankshaft 2 or the drive wheel 3; a protective sheath 14 is provided on the drive wheel 3, part of which
    17 made of soundproof plastic.
    Thus, the implementation of the invention will improve the noise-leveling and compactness.
    权利要求:
    Claims (2)
    [1]
    1. INTERNAL COMBUSTION ENGINE, comprising a soundproof casing and a blower made in the form of a drive wheel with curved channels and a cylindrical recess, characterized in that, in order to improve sound absorption and compactness, the drive wheel is made of two concentric parts, 'external and internal, interconnected at least through an elastic insert, and provided with a protective shell made of a soundproof plate and located at its end and in a cylindrical recess, and part of the shell, located in the recess, connected to the blower. .
    [2]
    2. Engine pop. 1, characterized in that in the part of the casing located in the recess, additional suction curved channels are made.
    SU <„'1109063>
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    同族专利:
    公开号 | 公开日
    ATA211580A|1985-01-15|
    US4340014A|1982-07-20|
    JPS618258B2|1986-03-13|
    DE3114998A1|1982-01-14|
    AT378576B|1985-08-26|
    DE3114998C2|1983-04-14|
    JPS56165725A|1981-12-19|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2320663A|1939-06-06|1943-06-01|Schultz Erich|Centrifugal impeller|
    US2276404A|1939-10-10|1942-03-17|Wright Aeronautical Corp|Shrouded impeller|
    US2716904A|1953-04-15|1955-09-06|Schwitzer Cummins Company|Damper assembly|
    DE1142467B|1956-10-13|1963-01-17|Kloeckner Humboldt Deutz Ag|Device for ventilating the crankcase of an internal combustion engine|
    AT341832B|1972-10-11|1978-02-27|List Hans|COMBUSTION MACHINE WITH SOUND-INSULATING CASING|
    US3988948A|1972-10-13|1976-11-02|Hans List|Internal combustion engine with torsional-vibration balancer|
    AT335801B|1974-05-20|1977-04-12|List Hans|COMBUSTION MACHINE WITH SOUND-INSULATING CASING|
    CS187570B1|1974-07-12|1979-02-28|Drahomir Uher|Device for the sound deadening from the ventilator,notebly for air cooled motors|
    AT373363B|1976-08-27|1984-01-10|List Hans|DEVICE FOR VENTILATING THE EXTERNAL SURFACES OF AN INTERNAL COMBUSTION ENGINE AND ITS INTERMEDIATE SPACING FORMED|
    DE2744406A1|1977-10-03|1979-04-12|Daimler Benz Ag|Piston engine shaft pulley disc - has closed cover over bearer sleeve face side turned away from shaft fixture|
    US4193740A|1978-03-15|1980-03-18|Fram Corporation|Vibration isolator for flexible bladed fan|JPS6332347Y2|1982-08-25|1988-08-29|
    GB2138097B|1983-04-13|1986-09-10|Ford Motor Co|Reduction of crankshaft noise from an internal combustion engine|
    US4572092A|1983-09-21|1986-02-25|The Merrow Machine Company|Handwheel modified for improved lubrication and cooling|
    US5191813A|1991-07-22|1993-03-09|Tecumseh Products Company|Hydrostatic transaxle having a fan and pulley arrangement|
    US6740992B2|2002-02-19|2004-05-25|Siemens Vdo Automotive Inc.|Electric motor torsional decoupling|
    US7188699B2|2004-02-11|2007-03-13|American Axle & Manufacturing, Inc.|Axle assembly with cooling pump|
    US20070040143A1|2005-08-18|2007-02-22|Garrick Robert D|Throttle passage whistling control device and method|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    AT211580A|AT378576B|1980-04-18|1980-04-18|SOUND-INSULATED ENCLOSED ENGINE|
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