JPS5780994A - Muffler for outboard engine - Google Patents

Muffler for outboard engine

Info

Publication number
JPS5780994A
JPS5780994A JP55155500A JP15550080A JPS5780994A JP S5780994 A JPS5780994 A JP S5780994A JP 55155500 A JP55155500 A JP 55155500A JP 15550080 A JP15550080 A JP 15550080A JP S5780994 A JPS5780994 A JP S5780994A
Authority
JP
Japan
Prior art keywords
chamber
pipe
water
engine
discharge port
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP55155500A
Other languages
Japanese (ja)
Inventor
Masaki Okazaki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yamaha Marine Co Ltd
Yamaha Motor Co Ltd
Original Assignee
Yamaha Motor Co Ltd
Sanshin Kogyo KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yamaha Motor Co Ltd, Sanshin Kogyo KK filed Critical Yamaha Motor Co Ltd
Priority to JP55155500A priority Critical patent/JPS5780994A/en
Publication of JPS5780994A publication Critical patent/JPS5780994A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P3/00—Liquid cooling
    • F01P3/20—Cooling circuits not specific to a single part of engine or machine
    • F01P3/202—Cooling circuits not specific to a single part of engine or machine for outboard marine engines
    • 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
    • F02B61/00—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing
    • F02B61/04—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing for driving propellers
    • F02B61/045—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing for driving propellers for marine engines

Landscapes

  • Exhaust Silencers (AREA)

Abstract

PURPOSE: To muffle the engine noises efficiently by a method wherein the exhaust gas of the engine is passed under a water curtain formed by discharging waste water of engine-cooling water.
CONSTITUTION: An exhaust pipe 9 for the engine 16 is provided in the interior of an upper casing 7, and it is provided with a restricting plate 10 as one body. The plate 10 is supported in an elastic and water-tight condition in relation to a casing for a driving shaft 8 and a partition wall 14, and forms a main expansion chamber 1 and the first auxiliary combustion chamber 3. In addition, the plate 10 is provided with a hole 11 for communicating the chambers 1, 3 to each other and a balancing pipe 2. A cooling-water discharge port 12 is provided in the chamber 3, and the second auxsiliary expansion chamber 5 is provided which is communicated into the chamber 3 through a passage 4 formed in the partition wall 14 at a position close to the discharge port 12. The chamber 5 is communicated to the exterior of the casing 7 through a tail pipe 6. The exhaust gas from the exhaust pipe 9 is discharged to the exterior after it is muffled while passing through the main expansion chamber 1, the hole 11, the balancing pipe 2, the first auxiliary expansion pipe 3, the water curtain (solid line arrows) formed of the waste cooling water discharged from the discharge port 12, the passage 4, the second auxiliary expansion chamber 5 and the tail pipe 6.
COPYRIGHT: (C)1982,JPO&Japio
JP55155500A 1980-11-05 1980-11-05 Muffler for outboard engine Pending JPS5780994A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55155500A JPS5780994A (en) 1980-11-05 1980-11-05 Muffler for outboard engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55155500A JPS5780994A (en) 1980-11-05 1980-11-05 Muffler for outboard engine

Publications (1)

Publication Number Publication Date
JPS5780994A true JPS5780994A (en) 1982-05-20

Family

ID=15607400

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55155500A Pending JPS5780994A (en) 1980-11-05 1980-11-05 Muffler for outboard engine

Country Status (1)

Country Link
JP (1) JPS5780994A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4607723A (en) * 1983-09-29 1986-08-26 Sanshin Kogyo Kabushiki Kaisha Exhaust system for outboard motors
JPH01122798A (en) * 1987-11-05 1989-05-16 Suzuki Motor Co Ltd Exhaust device for outboard motor
US5149284A (en) * 1990-04-12 1992-09-22 Sanshin Kogyo Kabushiki Kaisha Exhaust system for an outboard motor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4607723A (en) * 1983-09-29 1986-08-26 Sanshin Kogyo Kabushiki Kaisha Exhaust system for outboard motors
JPH01122798A (en) * 1987-11-05 1989-05-16 Suzuki Motor Co Ltd Exhaust device for outboard motor
US5149284A (en) * 1990-04-12 1992-09-22 Sanshin Kogyo Kabushiki Kaisha Exhaust system for an outboard motor

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