US1513273A - Internal-combustion engine - Google Patents

Internal-combustion engine Download PDF

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Publication number
US1513273A
US1513273A US617340A US61734023A US1513273A US 1513273 A US1513273 A US 1513273A US 617340 A US617340 A US 617340A US 61734023 A US61734023 A US 61734023A US 1513273 A US1513273 A US 1513273A
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United States
Prior art keywords
internal
cylinder
piston
combustion engine
fuel
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Expired - Lifetime
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US617340A
Inventor
Randerz Hjalmar Johan
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.)
Atlas Copco AB
Original Assignee
Atlas Diesel AB
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 Atlas Diesel AB filed Critical Atlas Diesel AB
Priority to US617340A priority Critical patent/US1513273A/en
Application granted granted Critical
Publication of US1513273A publication Critical patent/US1513273A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • 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
    • F02B2720/00—Engines with liquid fuel
    • F02B2720/25—Supply of fuel in the cylinder
    • F02B2720/257—Supply of fuel under pressure in the cylinder without blowing fluid
    • F02B2720/258—Supply of fuel under pressure in the cylinder without blowing fluid with compression and ignition exclusively in the cylinder
    • 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

Definitions

  • This invention relates tO an arrangement in internal, combustion engines, by means of ⁇ which the air in the combustion'chamber of the li'vorking cylinderat the end Of the com-l pression stroke of the piston is caused to whirl and' thereby 4is intimately mingled with the injected fuel.
  • the accompanying drawing shows as an example and in a vertical section a. two stroke cycle engine, to which the invention is applied.
  • the drawing shows in dotted lines the piston'in its upper position.
  • the said air forced into the combustion chamber passes along the calotte shaped side of the cylinder lhead toward the sprayer 9 and then downwards together with the introduced atomized fuel forming forcible whirls resulting in' anl intimate mixture 'of fuel and air. Owing' t'O the fact that thee-air moves downwards from the sprayer 9, thus in the same direction as'the fuel, the airhas no tendency Of counteracting the entrance and spraying of the ⁇ fuel.

Description

H. J. RANDERZ INTERNAL COMBUS'IION I ENGINE Filed Feb. 6, 1923 Patented oa: 2s, 1924. l
PATENT OFFICE.
HJ'ALMAR JOHAN RANDERZ, 0F yBACKEBO NACKA, SWEDEN, ASSIGNOR T0 AKTIE BOLAGET ATLAS DIESEL, OF STOCKHOLM, SWEDEN, A CORPORATION OF' SWEDEN.
INTERNAIPCOM'BUSTION ENGINE.
Application led February 6, 19,23. Serial No. 617,340.
To all whom z't may concern.:
Be it known that I, I-IJALMAR JOHAN RANDERZ, a vsubject of the King of Sweden, and resident of Backebo, Nacka, in the Kingdom of Sweden, have invented certain new and useful Improvements in Internal- Combustion Engines,'of which the following is a specification.
This invention relates tO an arrangement in internal, combustion engines, by means of `which the air in the combustion'chamber of the li'vorking cylinderat the end Of the com-l pression stroke of the piston is caused to whirl and' thereby 4is intimately mingled with the injected fuel. For gaining the said Object the provision of a groove or cavity provided in the inner end of the piston and extending round the same 4and cooperating with Va torus=provided in the cyl-V inder at its bottom, is combined' with a cylinder bottom which is calotteshaped in such manner, that the air, which lat the endofl the compression stroke is forced from the chamber, enclosed by the bottom wall of the said groove and the side of the'torus, and into the combustion chamber of the engine, will move first toward the fuel inlet, centrally located in the rvlinder bottom, and' then downwards in the saine direction as the.
injected, atomized fuel, tl'ie air and the fuel finally whirling round in the combustion chamber. i
The accompanying drawing shows as an example and in a vertical section a. two stroke cycle engine, to which the invention is applied. The drawing shows in dotted lines the piston'in its upper position.
2 is a recess with concave bottom surface and provided in the top end of the piston 1. The said recess extends round the piston. 4 is a torus or shoulder provided at closed end Or head of the working cylinder 3 and extending round the inner side Of the cylinder, which torus co-Operates with the said groove for the purpose stated below. During the Operation of the engine the air compressed in the crank chamber 5 passes through the channel 6 and opening 7 into the cylinder, in known manner, and ejects the combustion gases through the Outlet 8. As the piston approaches its upper position, shown by dotted lines, the air which is con.:
tained in the chamber enclosed by the bOt-` tom of the recess 2 and the side. ofthe 'torus 4, is forced in an oblique direction tour Of the same being curved shaped and extending from the torus 4 to the fuel in' let or sprayer 9,y the radius of the calotte of the cylinder decreasing from the torus.
The said air forced into the combustion chamber passes along the calotte shaped side of the cylinder lhead toward the sprayer 9 and then downwards together with the introduced atomized fuel forming forcible whirls resulting in' anl intimate mixture 'of fuel and air. Owing' t'O the fact that thee-air moves downwards from the sprayer 9, thus in the same direction as'the fuel, the airhas no tendency Of counteracting the entrance and spraying of the `fuel.
I claim: v
In an internal combustion engine the combination with a cylinder having inside a shoulder-shaped part and a piston-reciprocally mounted in said cylinder and having a recess inthe working face thereof, cO-operative with the same shoulder-shaped part, as the piston approaches the limit Of its compression stroke, said piston having the portion thereof lying inwardly Of the recess cup-shaped, of a cylinder head, having the portion thereof, lying inwardly of the.
j shaped surface in relation to the center line e shoulder-shaped part, calotte-shaped with 'v curve-shaped cr'oss section, which rightfrOm the said shoulder approaches the longitudinal centre line of the cylinder, and .a
HJ ALMAR JOI-IAN RANDERZ.
llitnesses:
ROBERT A PELGREN, ERNST ELVENOY.
US617340A 1923-02-06 1923-02-06 Internal-combustion engine Expired - Lifetime US1513273A (en)

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US617340A US1513273A (en) 1923-02-06 1923-02-06 Internal-combustion engine

Applications Claiming Priority (1)

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US617340A US1513273A (en) 1923-02-06 1923-02-06 Internal-combustion engine

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US1513273A true US1513273A (en) 1924-10-28

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2513856A (en) * 1946-12-11 1950-07-04 Eugene P Frank Engine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2513856A (en) * 1946-12-11 1950-07-04 Eugene P Frank Engine

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