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KR101234368B1 - Structure of carrier body - Google Patents

Structure of carrier body Download PDF

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KR101234368B1
KR101234368B1 KR1020100075949A KR20100075949A KR101234368B1 KR 101234368 B1 KR101234368 B1 KR 101234368B1 KR 1020100075949 A KR1020100075949 A KR 1020100075949A KR 20100075949 A KR20100075949 A KR 20100075949A KR 101234368 B1 KR101234368 B1 KR 101234368B1
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vent
carrier body
engine
horizontal bulkhead
exhaust
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KR20120013751A (en
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박재욱
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에이원마린테크 주식회사
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H20/00—Outboard propulsion units, e.g. outboard motors or Z-drives; Arrangements thereof on vessels
    • B63H20/24—Arrangements, apparatus and methods for handling exhaust gas in outboard drives, e.g. exhaust gas outlets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H21/00—Use of propulsion power plant or units on vessels
    • B63H21/32—Arrangements of propulsion power-unit exhaust uptakes; Funnels peculiar to vessels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/004—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 specially adapted for marine propulsion, i.e. for receiving simultaneously engine exhaust gases and engine cooling water

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)

Abstract

선박 추진을 위한 구동력이 발생되는 엔진과, 상기 엔진 하단에 결합된 캐리어바디와, 상기 캐리어바디 하단에 결합되며 엔진에 의해 내재된 프로펠러가 회전되도록 기어케이스가 형성된 선외기에 있어서, 상기 캐리어바디는 엔진 배기포트와 수직으로 연결된 배기관과, 상기 배기관 하부에 소정거리 떨어져 고정되며 일측에 제1통기구가 형성된 제1수평격벽과, 상기 배기관과 평행으로 고정되며 하단과 제1수평격벽사이에 제2통기구가 형성되고 상단과 천장 사이에 제3통기구가 각각 형성된 수직격벽과, 상기 제1수평격벽 저면에 고정되며 제1통기구와 엇갈려 제4통기구가 형성된 제2수평격벽과, 상기 제4통기구와 엇갈린 저면에 배출구가 형성된 구조로 이루어진다.
상기한 바와 같이, 본 발명에 의한 캐리어바디의 감음구조는 제2수평격벽과 배출구에 각각 형성된 제1,2돌출블록을 통한 압력강하와 함께 제1,2,3,4통기구를 통해 배기가스가 각각 분산되어 배출됨으로써 엔진 출력에 의해 발생된 배기가스가 배출되는 배출구에서 배기소음이 감소될 수 있는 효과가 있다.In an engine that generates a driving force for ship propulsion, a carrier body coupled to the lower end of the engine, and an outboard unit coupled to the carrier body and having a gear case configured to rotate a propeller embedded in the engine, the carrier body is an engine. An exhaust pipe connected vertically to the exhaust port, a first horizontal bulkhead fixed at a predetermined distance below the exhaust pipe and having a first vent formed on one side thereof, and a second vent formed between the lower end and the first horizontal bulkhead fixed in parallel with the exhaust pipe; A vertical bulkhead formed between the top and the ceiling, and having a third vent formed therebetween, a second horizontal bulkhead fixed to the bottom of the first horizontal bulkhead and staggered with the first vent, and having a fourth vent formed thereon; The outlet is formed.
As described above, the coiling structure of the carrier body according to the present invention has exhaust gas through the first, second, third and fourth vents together with the pressure drop through the first and second protruding blocks respectively formed in the second horizontal bulkhead and the outlet. By dispersing and discharging each, exhaust noise is reduced at an exhaust port through which exhaust gas generated by an engine output is discharged.

Description

캐리어바디의 감음구조 { Structure of carrier body }{Structure of carrier body}

본 발명은 캐리어바디(carrier body)의 감음구조에 관한 것으로, 보다 상세하게는 캐리어바디 내측에 각각 형성된 수직격벽 및 제1,2수평격벽이 엇갈려 고정됨에 따라 엔진에서 형성된 배기가스가 이동되는 제1,2,3,4통기구가 각각 엇갈려 형성됨으로써 경정 및 레저용 보트의 배기소음이 감소되는 캐리어바디의 감음구조에 관한 것이다.The present invention relates to a coiling structure of a carrier body, and more particularly, a first partition in which an exhaust gas formed in an engine is moved as the vertical bulkhead and the first and second horizontal bulkheads respectively formed inside the carrier body are staggered. It is related with the attenuation structure of the carrier body in which the exhaust noise of the boat and the leisure boat is reduced by staggering 2, 3, 4 vents, respectively.

일반적으로 경정 및 레저용 선박의 선미에 고정된 선외기는 캐리어바디 상단에 엔진이 결합된 구조로 선박의 조향 및 속도를 조절하는데 사용된다. 그러나 상기 엔진의 출력 소음으로 인해 경기 관람자와 경정 경기장 주변의 인가 주민들에게 소음피해를 입히게 되어 경정경기에 사용되는 엔진이 결합된 선박에서 캐리어바디는 감음형으로 제작되었으나 여전히 배기 소음이 크기 때문에 경기장 주변에 거주하는 주민에 의한 민원이 지속적으로 발생되는 문제점이 있었다.In general, the outboard motor fixed to the stern of the boat and leisure vessel is used to control the steering and speed of the vessel as the engine is coupled to the top of the carrier body. However, the output noise of the engine caused noise damage to the game viewers and authorized residents around the stadium. There was a problem that complaints by residents living in continually occur.

이를 개선하기 위한 종래 기술로 본 출원인이 2005년 11월 22일에 출원한 배기 감음형 선외기(출원번호 제2005-23082호)를 통해 배기가스의 배기가 2단계로 이루어져 출력의 저하는 방지하되 일정부분의 소음이 감소될 수 있었다.As a conventional technique for improving this, the exhaust gas is exhausted in two stages through the exhaust attenuation type outboard motor (Application No. 2005-23082) filed by the applicant on November 22, 2005. The noise of the part could be reduced.

그러나, 상기와 같은 종래기술은 단순히 배기가스가 이동되는 통로를 추가 구비해 배기가스가 분할해 배출되도록 할 뿐 배기가스의 배출은 동일한 형태로 배출되어 여전히 선박 사용시 소음이 발생되는 문제점이 있었다.However, the prior art as described above simply has an additional passage through which the exhaust gas is moved so that the exhaust gas is divided and discharged, but the exhaust gas is discharged in the same form, and there is still a problem that noise is generated when the vessel is used.

전술한 바와 같은 문제점을 해결하기 위하여, 본 발명에서는 배출구로 배출되는 소음이 감소되도록, 제2수평격벽과 배출구에 각각 형성된 제1,2돌출블록을 통한 압력강하와 함께, 배기가스가 분산되어 배출되어 소음이 감소되도록 각각 엇갈려 형성된 제1,2,3,4통기구가 형성된 캐리어바디의 감음구조를 제공하는데 목적이 있다.In order to solve the above problems, in the present invention, the exhaust gas is dispersed and discharged together with the pressure drop through the first and second protrusion blocks respectively formed in the second horizontal bulkhead and the outlet so that the noise discharged to the outlet is reduced. It is an object of the present invention to provide a damping structure of a carrier body having first, second, third, and fourth vents, which are staggered so that noise is reduced.

선박 추진을 위한 구동력이 발생되는 엔진과, 상기 엔진 하단에 결합된 캐리어바디와, 상기 캐리어바디 하단에 결합되며 엔진에 의해 내재된 프로펠러가 회전되도록 기어케이스가 형성된 선외기에 있어서, 상기 캐리어바디는 엔진 배기포트와 수직으로 연결된 배기관과, 상기 배기관 하부에 소정거리 떨어져 고정되며 일측에 제1통기구가 형성된 제1수평격벽과, 상기 배기관과 평행으로 고정되며 하단과 제1수평격벽사이에 제2통기구가 형성되고 상단과 천장 사이에 제3통기구가 각각 형성된 수직격벽과, 상기 제1수평격벽 저면에 고정되며 제1통기구와 엇갈려 제4통기구가 형성된 제2수평격벽과, 상기 제4통기구와 엇갈린 저면에 배출구가 형성된 구조로 이루어진다. In an engine that generates a driving force for ship propulsion, a carrier body coupled to the lower end of the engine, and an outboard unit coupled to the carrier body and having a gear case configured to rotate a propeller embedded in the engine, the carrier body is an engine. An exhaust pipe connected vertically to the exhaust port, a first horizontal bulkhead fixed at a predetermined distance below the exhaust pipe and having a first vent formed on one side thereof, and a second vent formed between the lower end and the first horizontal bulkhead fixed in parallel with the exhaust pipe; A vertical bulkhead formed between the top and the ceiling, and having a third vent formed therebetween, a second horizontal bulkhead fixed to the bottom of the first horizontal bulkhead and staggered with the first vent, and having a fourth vent formed thereon; The outlet is formed.

또한, 상기 캐리어바디는 배기가스가 분산되어 분출되도록 제1,2,3,4통기구가 각각 엇갈려 형성된다.In addition, the carrier body is formed by staggering the first, second, third, and fourth vents so that the exhaust gas is dispersed and ejected.

또한, 상기 제2수평격벽은 제4통기구측 끝단 상면에 제1수평격벽 저면으로 돌출된 제1돌출블록이 형성된다.In addition, the second horizontal bulkhead is formed with a first protruding block protruding from the bottom surface of the first horizontal bulkhead on the upper end surface of the fourth vent side.

또한, 상기 배출구는 내측면에 저면에서 상면으로 돌출된 제2돌출블록이 형성된다.In addition, the discharge port has a second protrusion block protruding from the bottom to the top surface on the inner side.

또한, 상기 제2통기구는 다수개의 원형 통공 또는 직선형태의 협관이 선택적으로 형성된다.In addition, the second vent may be selectively formed with a plurality of circular through holes or straight canal tubes.

상기한 바와 같이, 본 발명에 의한 캐리어바디의 감음구조는 제2수평격벽과 배출구에 각각 형성된 제1,2돌출블록을 통한 압력강하와 함께 제1,2,3,4통기구를 통해 배기가스가 각각 분산되어 배출됨으로써 엔진 출력에 의해 발생된 배기가스가 배출되는 배출구에서 배기소음이 감소될 수 있는 효과가 있다.As described above, the coiling structure of the carrier body according to the present invention has exhaust gas through the first, second, third and fourth vents together with the pressure drop through the first and second protruding blocks respectively formed in the second horizontal bulkhead and the outlet. By dispersing and discharging each, exhaust noise is reduced at an exhaust port through which exhaust gas generated by an engine output is discharged.

도 1은 본 발명에 따른 캐리어바디의 감음구조 측면도
도 2는 본 발명에 따른 제2통기구 단면도
도 3은 본 발명에 따른 캐리어바디의 감음구조 단면도1 is a side view of the winding structure of the carrier body according to the present invention
Figure 2 is a cross-sectional view of the second vent according to the present invention
3 is a cross-sectional view of the structure of the carrier body according to the present invention

이하 본 발명에 의한 캐리어바디의 감음구조의 구성 및 작동에 따른 바람직한 실시예를 첨부도면과 함께 상세하게 설명한다.Hereinafter, a preferred embodiment according to the configuration and operation of the winding structure of the carrier body according to the present invention will be described in detail with the accompanying drawings.

도 1은 본 발명에 따른 캐리어바디의 감음구조 측면도이고, 도 2는 본 발명에 따른 제2통기구 단면도이고, 도 3은 본 발명에 따른 캐리어바디의 감음구조 단면도이다.1 is a side view of the coiling structure of the carrier body according to the present invention, Figure 2 is a cross-sectional view of the second vent according to the present invention, Figure 3 is a cross-sectional view of the coiling structure of the carrier body according to the present invention.

본 발명의 캐리어바디의 감음구조는, 도 1에 도시된 바와 같이, 선미에 구비되어 선박 추진을 위한 구동력이 발생되는 엔진(10)과, 상기 엔진(10) 하단에 결합되며 배기가스가 이동되는 캐리어바디(20)와, 상기 캐리어바디(20) 하단에 결합되며 엔진(10)의 구동축(도면 미도시)과 결합된 프로펠러(31)를 감싼 기어케이스(30)가 형성된 구조로 이루어진다.The winding structure of the carrier body of the present invention, as shown in Figure 1, is provided in the stern and the driving force for generating a ship propulsion, coupled to the lower end of the engine 10 and the exhaust gas is moved A carrier body 20 and a gear case 30 coupled to a lower end of the carrier body 20 and having a propeller 31 coupled to a drive shaft (not shown) of the engine 10 are formed.

상기 캐리어바디(20)는 내측 중앙에 종방향으로 형성되어 엔진(10)의 배기포트(도면 미도시)와 연결된 배기관(21)과, 상기 배기관(21) 하부에 소정거리 떨어져 횡방향으로 고정되며 일측단이 개방되어 제1통기구(221)가 형성된 제1수평격벽(22)과, 상기 배기관(21)과 평행을 이루며 제1수평격벽(22) 일측단에서 소정거리 떨어져 종방향으로 형성된 수직격벽(23)과, 상기 제1수평격벽(22)과 평행을 이루며 그 하부로 일정간격 떨어져 고정되며 일측단이 개방되어 제4통기구(241)가 형성된 제2수평격벽(24)과, 상기 제4통기구(241)와 엇갈린 저면 일측에 대각선 방향으로 돌출된 배출구(25)가 형성된다.The carrier body 20 is formed in the center in the longitudinal direction in the exhaust pipe 21 is connected to the exhaust port (not shown) of the engine 10, and fixed in the transverse direction apart a predetermined distance below the exhaust pipe (21) The first horizontal bulkhead 22 having one side end open to form the first vent 221 and the vertical bulkhead parallel to the exhaust pipe 21 and vertically formed at a predetermined distance away from one end of the first horizontal bulkhead 22. A second horizontal bulkhead 24 formed in parallel with the first horizontal bulkhead 22 and fixed to a lower portion below the first horizontal bulkhead 22 and having one side end open and having a fourth vent 241 formed therein; A vent port 25 protruding in a diagonal direction is formed on one side of the bottom surface that is staggered with the vent 241.

상기 수직격벽(23)은 하단이 제1수평격벽(22)에 인접해 제2통기구(231)가 형성되며, 상단은 천장(233)과 인접해 제3통기구(232)가 각각 형성된다. 도 2a에 도시된 바와 같이, 제2통기구(231)는 직선형태의 협관 형태로 형성되거나, 도 2b와 같이 다수개의 원형 통공이 형성된 형태로 선택적으로 이루어져, 배기가스가 넓은 공간에서 좁은 공간으로 이동시 압력강하에 의해 소음이 감소될 수 있는 것이다. 또한, 제1,2,3,4통기구(221,231,232,241)가 각각 엇갈려 형성되어 배기가스의 이동방향이 분산됨으로써 소음이 감소되는 것이다.The vertical bulkhead 23 has a lower end adjacent to the first horizontal bulkhead 22 and a second vent 231 is formed, and an upper end of the vertical bulkhead 23 is adjacent to the ceiling 233 and a third vent 232 is formed, respectively. As shown in Figure 2a, the second vent 231 is formed in the form of a straight narrow tube, or selectively formed in the form of a plurality of circular through holes as shown in Figure 2b, when the exhaust gas is moved from a large space to a narrow space Noise can be reduced by the pressure drop. In addition, the first, second, third, and fourth vents 221, 231, 232, and 241 are alternately formed to reduce noise by dispersing the moving direction of the exhaust gas.

한편, 제2수평격벽(24)은 제4통기구(241)측 끝단 상면에 제1수평격벽(22) 저면으로 제1돌출블록(242)이 사각형상으로 돌출되며, 배출구(25) 역시 내측면에 사각형상으로 제2돌출블록(251)이 돌출되어 배기가스의 이동시 면적변화에 따른 압력강하에 의해 소음이 감소될 수 있는 것이다. 또한, 도면에는 미도시 되었지만, 제1,2돌출블록(242,251)은 완만한 경사를 이루며 형성되어 배기가스가 이동이 원활하고 완만하게 압력이 강하되도록 할 수 있는 것이다.On the other hand, the second horizontal bulkhead 24 has a first projection block 242 protruding in a rectangular shape to the bottom surface of the first horizontal bulkhead 22 on the upper end surface of the fourth vent 241 side end, the outlet 25 is also the inner surface The second protruding block 251 protrudes in a quadrangular shape so that the noise may be reduced by the pressure drop due to the area change when the exhaust gas moves. In addition, although not shown in the drawing, the first and second protruding blocks 242 and 251 are formed to have a gentle inclination so that the exhaust gas smoothly moves and the pressure drops smoothly.

이하 본 발명에 의한 캐리어바디의 감음구조의 작용 및 효과에 대한 바람직한 실시예를 도면을 참고하여 상세하게 설명한다.Hereinafter, a preferred embodiment of the action and effect of the damping structure of the carrier body according to the present invention will be described in detail with reference to the drawings.

본 발명의 캐리어바디의 감음구조는 도 3에 도시된 바와 같이, 캐리어바디(20) 상단에 결합된 엔진(10) 구동시 배기포트와 연결된 배기관(21)을 통해 배기가스가 배출되며, 각각 제2,3통기구(231,232)를 향해 분산되어 배기가스가 이동되고, 제1통기구(221)를 통과하며 방향이 전환된 후 제2수평격벽(24) 상부를 따라 이송된다. 또한, 제4통기구(241)를 통과하며 방향이 전환된 후 제2수평격벽(24) 하부를 따라 이송된 후 배출구(25)를 통해 수중으로 배기가스가 배출되는 것이다. As shown in FIG. 3, the winding structure of the carrier body of the present invention discharges the exhaust gas through the exhaust pipe 21 connected to the exhaust port when driving the engine 10 coupled to the carrier body 20. Dispersed toward the 2nd and 3rd vents 231 and 232, the exhaust gas is moved, passes through the first vent 221, and is diverted, and is then moved along the upper portion of the second horizontal bulkhead 24. In addition, after passing through the fourth vent 241 and the direction is changed, the exhaust gas is discharged into the water through the discharge port 25 after being transferred along the lower portion of the second horizontal bulkhead 24.

상기한 바와 같이, 본 발명에 의한 캐리어바디의 감음구조는 제1,2,3,4통기구가 각각 엇갈려 형성되어 배기가스가 분산되어 이동됨으로써 소음이 감소될 뿐만 아니라, 제2수평격벽과 배출구 측에 각각 돌출된 제1,2돌출블록에 의해 배기가스의 이송시 면적변화에 의해 압력강하로 인한 배기소음이 감소되는 효과가 있다.As described above, the carrier structure of the carrier body according to the present invention, the first, second, third, and fourth vents are alternately formed so that the exhaust gas is dispersed and moved, thereby reducing noise, and the second horizontal bulkhead and the outlet side. The first and second protruding blocks protruding into the exhaust gas reduce the noise due to the pressure drop due to the area change during the transfer of the exhaust gas.

본 발명은 상기한 특징의 바람직한 실시예에 한정되지 아니하며, 청구범위에서 청구하는 본 발명의 요지를 벗어남이 없이 당해 발명이 속하는 기술분야에서 통상의 지식을 가진 자라면 누구든지 다양한 변형실시가 가능한 것은 물론, 그와 같은 변경은 청구범위 기재의 범위 내에 있게 된다.The present invention is not limited to the preferred embodiments of the above-described features, and various modifications can be made by those skilled in the art without departing from the gist of the present invention as claimed in the claims. Of course, such changes will fall within the scope of the claims.

10: 엔진 20: 캐리어바디
21: 배기관 22: 제1수평격벽
221: 제1통기구 23: 수직격벽
231: 제2통기구 232: 제3통기구
233: 천장 24: 제2수평격벽
241: 제4통기구 242: 제1돌출블록
25: 배출구 251: 제2돌출블록
30: 기어케이스 31: 프로펠러10: engine 20: carrier body
21: exhaust pipe 22: first horizontal bulkhead
221: first vent 23: vertical bulkhead
231: second vent 232: third vent
233: ceiling 24: second horizontal bulkhead
241: fourth vent 242: first protrusion block
25: outlet 251: second protrusion block
30: gear case 31: propeller

Claims (5)

선박 추진을 위한 구동력이 발생되는 엔진과, 상기 엔진 하단에 결합된 캐리어바디와, 상기 캐리어바디 하단에 결합되며 엔진에 의해 내재된 프로펠러가 회전되도록 기어케이스가 형성된 선외기에 있어서,
상기 캐리어바디(20)는 엔진(10) 배기포트와 수직으로 연결된 배기관(21);
상기 배기관(21) 하부에 소정거리 떨어져 고정되며 일측에 제1통기구(221)가 형성된 제1수평격벽(22);
상기 배기관(21)과 평행으로 고정되며 하단과 제1수평격벽(22)사이에 제2통기구(231)가 형성되고 상단과 천장(233) 사이에 제3통기구(232)가 각각 형성된 수직격벽(23);
상기 제1수평격벽(22) 저면에 고정되며 제1통기구(221)와 엇갈려 제4통기구(241)가 형성되고, 상기 제4통기구(241)측 끝단 상면에 제1수평격벽(22) 저면으로 돌출된 제1돌출블록(242)이 형성된 제2수평격벽(24); 및
상기 제4통기구(241)와 엇갈린 저면에 형성되고, 내측면에 저면에서 상면으로 돌출된 제2돌출블록(251)이 형성된 배출구(25);가 형성되되,
상기 캐리어바디(20)는 배기가스가 분산되어 분출되도록 제1,2,3,4통기구(221,231,232,241)가 각각 엇갈려 형성되고, 상기 제2통기구(231)는 다수개의 원형 통공 또는 직선형태의 협관이 선택적으로 형성된 것을 특징으로 하는 캐리어바디의 감음구조. In an outboard motor, in which an engine for driving a ship is generated, a carrier body coupled to a lower end of the engine, and a gear case coupled to a lower end of the carrier body and configured to rotate a propeller embedded by the engine,
The carrier body 20 includes an exhaust pipe 21 vertically connected to the exhaust port of the engine 10;
A first horizontal bulkhead 22 fixed to a lower portion below the exhaust pipe 21 and having a first vent 221 formed at one side thereof;
The vertical partition wall is fixed in parallel with the exhaust pipe 21, the second vent 231 is formed between the lower end and the first horizontal bulkhead 22, and the third vent 232 is formed between the upper end and the ceiling 233, respectively. 23);
It is fixed to the bottom surface of the first horizontal bulkhead 22, and the fourth vent 241 is formed to intersect with the first vent 221, the bottom surface of the first horizontal bulkhead 22 on the upper end of the fourth vent 241 side end A second horizontal partition wall 24 on which a protruding first protruding block 242 is formed; And
A discharge port 25 is formed on the bottom surface and the fourth vent 241, the second projection block 251 protruding from the bottom to the upper surface on the inner side;
The carrier body 20 is formed by staggering the first, second, third, and fourth vents 221, 231, 232, 241 so that the exhaust gas is dispersed and ejected, and the second vent 231 has a plurality of circular through-holes or straight canal tubes. Winding structure of the carrier body, characterized in that selectively formed. 삭제delete 삭제delete 삭제delete 삭제delete
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102587935B1 (en) 2023-04-07 2023-10-11 (주)한국알앤드디 System for reducing exhaust noise of outboard unit

Citations (4)

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Publication number Priority date Publication date Assignee Title
US4795383A (en) 1987-06-04 1989-01-03 Outboard Marine Corporation Marine propulsion device low-speed exhaust system
JPH05246389A (en) * 1992-03-06 1993-09-24 Yamaha Motor Co Ltd Exhaust emission control device for outboard motor
JPH08142991A (en) * 1994-11-25 1996-06-04 Sanshin Ind Co Ltd Outboard motor
JP2004299512A (en) 2003-03-31 2004-10-28 Suzuki Motor Corp Exhaust emission control device of outboard motor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4795383A (en) 1987-06-04 1989-01-03 Outboard Marine Corporation Marine propulsion device low-speed exhaust system
JPH05246389A (en) * 1992-03-06 1993-09-24 Yamaha Motor Co Ltd Exhaust emission control device for outboard motor
JPH08142991A (en) * 1994-11-25 1996-06-04 Sanshin Ind Co Ltd Outboard motor
JP2004299512A (en) 2003-03-31 2004-10-28 Suzuki Motor Corp Exhaust emission control device of outboard motor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102587935B1 (en) 2023-04-07 2023-10-11 (주)한국알앤드디 System for reducing exhaust noise of outboard unit

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