WO1979000476A1 - Four cycle diesel engine - Google Patents

Four cycle diesel engine Download PDF

Info

Publication number
WO1979000476A1
WO1979000476A1 PCT/JP1978/000066 JP7800066W WO7900476A1 WO 1979000476 A1 WO1979000476 A1 WO 1979000476A1 JP 7800066 W JP7800066 W JP 7800066W WO 7900476 A1 WO7900476 A1 WO 7900476A1
Authority
WO
WIPO (PCT)
Prior art keywords
cylinders
cam
combustion
rapid
engine
Prior art date
Application number
PCT/JP1978/000066
Other languages
French (fr)
Japanese (ja)
Inventor
J Matsui
Original Assignee
J Matsui
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 J Matsui filed Critical J Matsui
Publication of WO1979000476A1 publication Critical patent/WO1979000476A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/02—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for reversing
    • 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
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/027—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle four
    • 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
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)

Abstract

A rapid reversing device for use in four cycle marine diesel engines having a direct reversing gear. The rapid reversing device includes several combustion cylinders among a plurality of combustion cylinders comprising an engine which are respectively provided with an intake cam (20) and a starting cam, each of the cams having a double profile and act twice per one revolution of a cam shaft when operating as a reversal cam, and further includes an exhaust cam and a fuel cam each of which has a circular profile and consequently, not acting as a cam. The cylinders operate the same as in a usual engine during normal toward running; however, upon rapid reversal, the cylinders act as brake cylinders and cooperate with the special double profiled cams to facilitate a rapid reduction in engine rotation when there is a reduction in forward rotation. On the other hand, when there is a rapid start to move backwards, the several cylinders act as in an air engine and promote engine-speed, up independently of the combustion in the other combustion cylinders. Furthermore, the exhaust air which has operated in the air engine is utilized as a part of the combustion air in the other combustion cylinders. Accordingly, the generation of black smoke etc. due to misfiring or irregular, combustion which is apt to occur upon rapid reversal can be prevented.
PCT/JP1978/000066 1978-01-04 1978-12-23 Four cycle diesel engine WO1979000476A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP78/78 1978-01-04
JP178A JPS5493736A (en) 1978-01-04 1978-01-04 44cycle diesel engine

Publications (1)

Publication Number Publication Date
WO1979000476A1 true WO1979000476A1 (en) 1979-07-26

Family

ID=11462246

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1978/000066 WO1979000476A1 (en) 1978-01-04 1978-12-23 Four cycle diesel engine

Country Status (2)

Country Link
JP (1) JPS5493736A (en)
WO (1) WO1979000476A1 (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3367312A (en) * 1966-01-28 1968-02-06 White Motor Corp Engine braking system
DE1812586A1 (en) * 1968-12-04 1970-06-18 Maschf Augsburg Nuernberg Ag Camshaft for reversible four-stroke internal combustion engines
DE1935014A1 (en) * 1969-07-10 1971-01-28 Maschf Augsburg Nuernberg Ag Compressed air starting and braking device for internal combustion engines
JPS49101746A (en) * 1973-02-01 1974-09-26
GB1408325A (en) * 1972-01-27 1975-10-01 Burmeister & Wains Mot Mask Reversing mechanisms for internal combustion engines
DE2428922A1 (en) * 1974-06-15 1976-01-02 Maschf Augsburg Nuernberg Ag COMPRESSED AIR STARTING AND BRAKING DEVICE FOR COMBUSTION MACHINERY, IN PARTICULAR MARINE DRIVE MOTORS
JPS5343145A (en) * 1976-09-30 1978-04-19 Mashine Terumitsukusu Esu Ii E Method and apparatus for rapid pneumatic braking of diesel engine

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3367312A (en) * 1966-01-28 1968-02-06 White Motor Corp Engine braking system
DE1812586A1 (en) * 1968-12-04 1970-06-18 Maschf Augsburg Nuernberg Ag Camshaft for reversible four-stroke internal combustion engines
DE1935014A1 (en) * 1969-07-10 1971-01-28 Maschf Augsburg Nuernberg Ag Compressed air starting and braking device for internal combustion engines
GB1408325A (en) * 1972-01-27 1975-10-01 Burmeister & Wains Mot Mask Reversing mechanisms for internal combustion engines
JPS49101746A (en) * 1973-02-01 1974-09-26
DE2428922A1 (en) * 1974-06-15 1976-01-02 Maschf Augsburg Nuernberg Ag COMPRESSED AIR STARTING AND BRAKING DEVICE FOR COMBUSTION MACHINERY, IN PARTICULAR MARINE DRIVE MOTORS
JPS5343145A (en) * 1976-09-30 1978-04-19 Mashine Terumitsukusu Esu Ii E Method and apparatus for rapid pneumatic braking of diesel engine

Also Published As

Publication number Publication date
JPS5493736A (en) 1979-07-25

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