GB767145A - Internal combustion engine of the liquid-fuel injection compression ignition type - Google Patents

Internal combustion engine of the liquid-fuel injection compression ignition type

Info

Publication number
GB767145A
GB767145A GB19981/54A GB1998154A GB767145A GB 767145 A GB767145 A GB 767145A GB 19981/54 A GB19981/54 A GB 19981/54A GB 1998154 A GB1998154 A GB 1998154A GB 767145 A GB767145 A GB 767145A
Authority
GB
United Kingdom
Prior art keywords
fuel
fuel injection
injection device
deflecting surface
deflector
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
Application number
GB19981/54A
Inventor
Richard Watts
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.)
Ricardo PLC
Original Assignee
Ricardo and Co Engineers 1927 Ltd
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 Ricardo and Co Engineers 1927 Ltd filed Critical Ricardo and Co Engineers 1927 Ltd
Priority to GB19981/54A priority Critical patent/GB767145A/en
Publication of GB767145A publication Critical patent/GB767145A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/02—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
    • F02B23/06—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
    • F02B23/0672—Omega-piston bowl, i.e. the combustion space having a central projection pointing towards the cylinder head and the surrounding wall being inclined towards the cylinder center axis
    • 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
    • F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/02—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
    • F02B23/06—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
    • F02B23/0645—Details related to the fuel injector or the fuel spray
    • F02B23/0648—Means or methods to improve the spray dispersion, evaporation or ignition
    • F02B23/0651—Means or methods to improve the spray dispersion, evaporation or ignition the fuel spray impinging on reflecting surfaces or being specially guided throughout the combustion space
    • 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
    • F02B2275/14—Direct injection into combustion chamber
    • 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
    • F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/02—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
    • F02B23/06—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
    • F02B23/0603—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston at least part of the interior volume or the wall of the combustion space being made of material different from the surrounding piston part, e.g. combustion space formed within a ceramic part fixed to a metal piston head
    • 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
    • F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/02—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
    • F02B23/06—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
    • F02B23/0618—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston having in-cylinder means to influence the charge motion
    • F02B23/0621—Squish flow
    • 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
    • F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/02—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
    • F02B23/06—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
    • F02B23/0645—Details related to the fuel injector or the fuel spray
    • F02B23/0666—Details related to the fuel injector or the fuel spray having a single fuel spray jet per injector nozzle
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Abstract

767,145. Fuel injection compression ignition engines. RICARDO & CO., ENGINEERS (1927), Ltd. June 21, 1955 [July 8, 1954], No. 19981/54. Class 7 (3). In an internal combustion engine of the liquid fuel injection compression ignition kind operating on the four stroke cycle comprising a combustion chamber formed at least mainly by a pocket centrally disposed in the piston crown and into which the majority of the air is forced at the end of the compression stroke and fuel is injected directly by a fuel injection device, the fuel injection device is situated centrally in the cylinder head and is of the kind which delivers a single main jet of fuel and there is formed or disposed centrally within the combustion chamber a deflector which during the injection period lies in the path of the main jet of fuel delivered by the fuel injection device and adjacent to the nozzle of such fuel injection device so that substantially the whole of the fuel in the main fuel jet is deflected by the deflector so as to be distributed within the combustion chamber pocket and the inlet and exhaust parts are disposed in the cylinder head and controlled by poppet valves which lie wholly within the projected area of the cylinder bore with their axes on a diameter of the cylinder bore. As shown the deflector G deflects the fuel from the fuel injector F outwards as indicated at H. The fuel injector may be of single-hole pintle type employing either an inwardly or outwardly moving valve member. In some cases, the injector may be of the kind having in addition to a single main fuel injection orifice a subsidiary orifice through which the fuel is injected during the starting period and possibly to a small extent during normal load running. The deflecting surface G<SP>1</SP> may be flat or curved from a centre point outwards and either in a concave or convex sense. It may have a series of grooves or recesses formed therein and radiating from its centre. Or where the deflecting surface is conical or of curved form it may be provided with flats radiating from the centre of the surface. The employment of grooves or flats may for example be suitable where there is some degree of intentional or incidental rotation of the air charge. Satisfactory results have been achieved when at the end of the compression stroke the deflecting surface does not lie at a greater distance from the injection orifice than approximately one quarter of an inch. An example is given in which the distance between the apex of the deflecting surface and the nozzle at the end of the compression stroke might be of the order of 0.1 to 0.25 ins. the base diameter being of the order of 0.3 ins.
GB19981/54A 1954-07-08 1954-07-08 Internal combustion engine of the liquid-fuel injection compression ignition type Expired GB767145A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB19981/54A GB767145A (en) 1954-07-08 1954-07-08 Internal combustion engine of the liquid-fuel injection compression ignition type

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB19981/54A GB767145A (en) 1954-07-08 1954-07-08 Internal combustion engine of the liquid-fuel injection compression ignition type

Publications (1)

Publication Number Publication Date
GB767145A true GB767145A (en) 1957-01-30

Family

ID=10138353

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19981/54A Expired GB767145A (en) 1954-07-08 1954-07-08 Internal combustion engine of the liquid-fuel injection compression ignition type

Country Status (1)

Country Link
GB (1) GB767145A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4770138A (en) * 1986-06-19 1988-09-13 Nippon Clen Engine Research Institute Co. Ltd. Fuel injection type internal combustion engine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4770138A (en) * 1986-06-19 1988-09-13 Nippon Clen Engine Research Institute Co. Ltd. Fuel injection type internal combustion engine

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