US3884201A - Marine engine - Google Patents

Marine engine Download PDF

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Publication number
US3884201A
US3884201A US345275A US34527573A US3884201A US 3884201 A US3884201 A US 3884201A US 345275 A US345275 A US 345275A US 34527573 A US34527573 A US 34527573A US 3884201 A US3884201 A US 3884201A
Authority
US
United States
Prior art keywords
manifold
carburetor
crank case
cylinder
cylinder block
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.)
Expired - Lifetime
Application number
US345275A
Other languages
English (en)
Inventor
James D Cregan
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.)
AMERICAN CHALLENGER Corp Inc
AMERICAN CHALLENGER CORP
Original Assignee
AMERICAN CHALLENGER CORP
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 AMERICAN CHALLENGER CORP filed Critical AMERICAN CHALLENGER CORP
Priority to US345275A priority Critical patent/US3884201A/en
Priority to AU67231/74A priority patent/AU6723174A/en
Priority to DE2414863A priority patent/DE2414863A1/de
Priority to NL7404129A priority patent/NL7404129A/xx
Priority to JP49033596A priority patent/JPS5025922A/ja
Priority to FR7410504A priority patent/FR2223562B3/fr
Application granted granted Critical
Publication of US3884201A publication Critical patent/US3884201A/en
Assigned to AMERICAN CHALLENGER CORPORATION, INC. reassignment AMERICAN CHALLENGER CORPORATION, INC. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: Internal Marine Combustion, Inc.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F7/00—Casings, e.g. crankcases
    • F02F7/0002—Cylinder arrangements
    • F02F7/0012—Crankcases of V-engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M13/00—Crankcase ventilating or breathing
    • 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
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B2075/1804—Number of cylinders
    • F02B2075/1824—Number of cylinders six
    • 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
    • F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
    • F02B2275/34—Lateral camshaft position
    • 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
    • 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
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B75/22—Multi-cylinder engines with cylinders in V, fan, or star arrangement

Definitions

  • That patent describes a marine engine in which a cover forms a generally closed compartment between the V-type cylinder banks.
  • An air horn in the compartment delivers air to the side entrance of a carburetor also mounted in the compartment. Air entering the air horn produces an eductive action which ventilates the crank case through passages between the compartment and the crank case.
  • a downdraft carburetor increases the volumetric efficiency of an internalcombustion engine while providing positive crank case ventilation through a generally closed compartment connected by passages to the crank case.
  • the cover which forms the generally closed compartment has an annular extension surrounding an opening in the cover.
  • a flame arrester is mounted over this opening.
  • An annular passageway is formed between the annular extension and a cover for the flame arrester. Carburetor air passing through this passageway produces an eductive effect which provides the positive crank case ventilation.
  • the centrally feeding manifold is clamped to the cylinder block solely by the cylinder heads which are secured in place over the edges of the manifold.
  • FIG. I is a cross sectional view taken in section of the engine.
  • FIG. 2 is a side elevational view in cross section of the engine.
  • the engine includes a cylinder block 12, cylinder heads 13 and 14 and a crank case 15.
  • Cylinder block 12 has six cylinders 16 arranged in pairs on opposite sides thereof, the cylinders extending upwardly and outwardly to form a V-type engine.
  • the invention is also applicable to 2, 4 and 8 cylinder V-type engines'
  • a crank case pan 17 extends below the crank case.
  • Crank shaft 18 has piston rods 19 and 20 connected to the throws thereof.
  • Cam shaft 21 is rotatably mounted above the crank shaft.
  • Inlet valves 22 and exhaust valves 23 are connected by links and rocker arms to the cam shaft 21.
  • Exhaust manifolds 24 are integrally formed within cylinder heads 13 and 14.
  • a cover 25 is bolted'and secured by the seal 27 to the cylinder heads 13 and 14. The cover forms a central compartment 28 between the cylinder heads.
  • a downdraft carburetor 29 is mounted in the compartment.
  • a centrally feeding manifold 30 has branches leading to the inlet valves 22.
  • An entrance in the top of the intake manifold is connected to the downdraft carburetor 29.
  • the cover 25 has an annular extension 31 which surrounds an opening in the top of the cover 25.
  • a flame arrester 32 is positioned in this opening and a domelike cover 33 is placed over the flame arrester.
  • the downdraft carburetor feeds fuel and air directly into the manifold 30 which is beneath it. This increases the volumetric efficiency of the engine and results in an increase in the horsepower. A greater volume of air and fuel can be fed into the manifold in this manner.
  • a plurality of apertures 34 are part of passages between the compartment 28 and the crank case I5. Air which enters the compartment under cover 33 and over extension 31 to the carburetor 29 has an eductive ef feet. This effect applies a pressure to the crank case to ventilate it through the passages and through the compartment 28. Unburned gases in the crank case are pulled into the carburetor in this manner. This effect is generally referred to as positive crank case ventilation. Note however, that it is accomplished without the need for tubes extending from the crank case as is common in automotive-type engines.
  • the manifold 30 is clamped to the cylinder block solely by the cylinder heads 13 and 14.
  • the head 14 is clamped by the cylinder head by bolts 36.
  • the edge portions 37 of the cylinder heads extend over the manifold 30 to hold it in place. Openings in the head align with open ings in the manifold.
  • a gasket 38 provides a seal around these openings.
  • first and second banks of cylinders is said block, said banks being upwardly and outwardly inclined
  • crank case at the lower portion of said .cylinder block
  • a centrally feeding manifold mounted in said compartment centrally of said cylinders and having an entrance in the top thereof
  • a downdraft carburetor mounted on top of said manifold and connected to the entrance of said intake manifold, said downdraft carburetor having a vertical passageway for flow of air through a top opening downwardly into said entrance of said intake manifold, said separately feeding manifold being separate from said cylinder block, said cylinder heads being secured to said cylinder block over annular extension and said cover for flow of air inwardly to and downwardly through said carburetor, said flow of air applying by eductive effect a negative pressure to said annular passageway which acts through said passage means to provide positive crank case ventilation.
  • a flame arrester positioned in said opening.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
US345275A 1973-03-27 1973-03-27 Marine engine Expired - Lifetime US3884201A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US345275A US3884201A (en) 1973-03-27 1973-03-27 Marine engine
AU67231/74A AU6723174A (en) 1973-03-27 1974-03-27 Marine engine
DE2414863A DE2414863A1 (de) 1973-03-27 1974-03-27 Schiffsmotor
NL7404129A NL7404129A (enrdf_load_stackoverflow) 1973-03-27 1974-03-27
JP49033596A JPS5025922A (enrdf_load_stackoverflow) 1973-03-27 1974-03-27
FR7410504A FR2223562B3 (enrdf_load_stackoverflow) 1973-03-27 1974-03-27

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US345275A US3884201A (en) 1973-03-27 1973-03-27 Marine engine

Publications (1)

Publication Number Publication Date
US3884201A true US3884201A (en) 1975-05-20

Family

ID=23354333

Family Applications (1)

Application Number Title Priority Date Filing Date
US345275A Expired - Lifetime US3884201A (en) 1973-03-27 1973-03-27 Marine engine

Country Status (6)

Country Link
US (1) US3884201A (enrdf_load_stackoverflow)
JP (1) JPS5025922A (enrdf_load_stackoverflow)
AU (1) AU6723174A (enrdf_load_stackoverflow)
DE (1) DE2414863A1 (enrdf_load_stackoverflow)
FR (1) FR2223562B3 (enrdf_load_stackoverflow)
NL (1) NL7404129A (enrdf_load_stackoverflow)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4080945A (en) * 1975-08-08 1978-03-28 Isuzu Motors Limited Structure of V type internal combustion engine
US4197899A (en) * 1976-12-22 1980-04-15 Ford Motor Company Method of casting a low weight reciprocating engine
US4329968A (en) * 1979-04-16 1982-05-18 Nissan Motor Co., Ltd. Oil separating system for blowby gas
US4840152A (en) * 1986-05-16 1989-06-20 Honda Giken Gokyo Kabushiki Kaisha V-type vertical engine
US5203296A (en) * 1992-04-09 1993-04-20 Barbron Corporation Flame arrester having helical flame arresting member
US5357913A (en) * 1992-04-10 1994-10-25 Sanshin Kogyo Kabushiki Kaisha Flame arrester arrangement for marine propulsion engine
US5375565A (en) * 1993-12-16 1994-12-27 Caterpillar Inc. Flame arrestor and method of manufacture
US5400750A (en) * 1993-08-09 1995-03-28 Brunswick Corporation Manifold and plenum construction for an electronic fuel injected engine
US5479903A (en) * 1993-08-04 1996-01-02 Mercedes-Benz Ag V-shaped internal combustion engine
US5709187A (en) * 1996-04-30 1998-01-20 Brunswick Corporation Flame arrestor
US6647944B2 (en) * 2001-04-17 2003-11-18 Suzuki Motor Corporation Cylinder block structure
US6708679B1 (en) 2002-12-06 2004-03-23 Mike Pinsker Polution control kit
US20070105465A1 (en) * 2000-02-29 2007-05-10 Brp-Rotax Gmbh & Co. Kg Watercraft Having a Four Stroke Engine with a Supercharger

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1190176B (it) * 1985-01-18 1988-02-16 Honda Motor Co Ltd Motore a combustione interna
FR2664654B1 (fr) * 1990-07-11 1992-11-06 Peugeot Carter cylindres de moteur avec circuit d'evacuation des gaz du carter et de recyclage d'huile.

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2966146A (en) * 1957-10-29 1960-12-27 Schweitzer And Hussmann Air-cooled, port-scavenged engine
US3233598A (en) * 1964-10-28 1966-02-08 Cornelius W Van Ranst Marine engine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2966146A (en) * 1957-10-29 1960-12-27 Schweitzer And Hussmann Air-cooled, port-scavenged engine
US3233598A (en) * 1964-10-28 1966-02-08 Cornelius W Van Ranst Marine engine

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4080945A (en) * 1975-08-08 1978-03-28 Isuzu Motors Limited Structure of V type internal combustion engine
US4197899A (en) * 1976-12-22 1980-04-15 Ford Motor Company Method of casting a low weight reciprocating engine
US4329968A (en) * 1979-04-16 1982-05-18 Nissan Motor Co., Ltd. Oil separating system for blowby gas
US4840152A (en) * 1986-05-16 1989-06-20 Honda Giken Gokyo Kabushiki Kaisha V-type vertical engine
US5203296A (en) * 1992-04-09 1993-04-20 Barbron Corporation Flame arrester having helical flame arresting member
US5357913A (en) * 1992-04-10 1994-10-25 Sanshin Kogyo Kabushiki Kaisha Flame arrester arrangement for marine propulsion engine
US5479903A (en) * 1993-08-04 1996-01-02 Mercedes-Benz Ag V-shaped internal combustion engine
US5400750A (en) * 1993-08-09 1995-03-28 Brunswick Corporation Manifold and plenum construction for an electronic fuel injected engine
US5375565A (en) * 1993-12-16 1994-12-27 Caterpillar Inc. Flame arrestor and method of manufacture
US5709187A (en) * 1996-04-30 1998-01-20 Brunswick Corporation Flame arrestor
US20070105465A1 (en) * 2000-02-29 2007-05-10 Brp-Rotax Gmbh & Co. Kg Watercraft Having a Four Stroke Engine with a Supercharger
US6647944B2 (en) * 2001-04-17 2003-11-18 Suzuki Motor Corporation Cylinder block structure
US6708679B1 (en) 2002-12-06 2004-03-23 Mike Pinsker Polution control kit

Also Published As

Publication number Publication date
DE2414863A1 (de) 1974-10-10
FR2223562A1 (enrdf_load_stackoverflow) 1974-10-25
JPS5025922A (enrdf_load_stackoverflow) 1975-03-18
FR2223562B3 (enrdf_load_stackoverflow) 1976-04-16
NL7404129A (enrdf_load_stackoverflow) 1974-10-01
AU6723174A (en) 1975-10-02

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Legal Events

Date Code Title Description
AS Assignment

Owner name: AMERICAN CHALLENGER CORPORATION, INC., AUBURN, N.Y

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:INTERNAL MARINE COMBUSTION, INC.;REEL/FRAME:003827/0706

Effective date: 19810202