GB585391A - Improvements in and relating to internal combustion engines - Google Patents

Improvements in and relating to internal combustion engines

Info

Publication number
GB585391A
GB585391A GB16821/43A GB1682143A GB585391A GB 585391 A GB585391 A GB 585391A GB 16821/43 A GB16821/43 A GB 16821/43A GB 1682143 A GB1682143 A GB 1682143A GB 585391 A GB585391 A GB 585391A
Authority
GB
United Kingdom
Prior art keywords
air
piston
intercooler
combustion chamber
cylinder
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
GB16821/43A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB585391A publication Critical patent/GB585391A/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B41/00Engines characterised by special means for improving conversion of heat or pressure energy into mechanical power
    • F02B41/02Engines with prolonged expansion
    • F02B41/06Engines with prolonged expansion in compound cylinders
    • F02B41/08Two-stroke compound engines
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B25/00Engines characterised by using fresh charge for scavenging cylinders
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00Other engines
    • F02B75/02Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/025Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B2720/00Engines with liquid fuel
    • F02B2720/13Two stroke engines with ignition device
    • F02B2720/133Two stroke engines with ignition device with measures for charging, increasing the power

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)

Abstract

585,391. Two-stroke engines. WEIGED D. M. Oct. 13, 1943. No. 16821. Convention date, March 16, 1942. [Classes 7 (ii) and 7 (vi)] A two-stroke internal-combustion engine particularly an engine of the kind described in Specification 543,359 has a combustible mixture produced by injecting fuel into air which has been compressed and then cooled below the temperature of spontaneous ignition the air or mixture being introduced into a combustion chamber separate from the working cylinder by a mechanically operated valve during the exhaust stroke of the engine. An air cooled cylinder 10 carries a slidable sleeve 14 reciprocated by positively-acting cams 16, 17 mounted on the crankshaft 12. The head 23 is bolted to the upper part of the cylinder and packing rings are provided at 24. The head is fitted with an exhaust valve 43 actuated from a cam 41 on the crankshaft through a tappet 42 and push rod 44. The piston 26 reciprocating in sleeve 14 has a rod 27 secured to a cross-head 28 slidable in an extension 29 of the lower cylinder cover 30 which is bolted to the cylinder at 34. A connecting rod 33 connects the cross-head to the crankshaft. The lower end of sleeve 14 has an intake port 51 which during the upper part of the sleeve travel, corresponding, with the upward movement of piston 26, registers with an air intake 52 so that air is drawn into the space beneath the piston. On the downward stroke, a port 55 in the sleeve registers with a port 56 leading to an intercooler 57 so that the air drawn in through intake 52 is compressed and transferred to the intercooler. The outlet header 60 of the intercooler communicates with a passage 62 coacting with a port 64 to transfer the cooled compressed air to a combustion chamber 61, where the air is mixed with an injected fuel charge this transfer occurring during the middle part of the upward piston movement. Towards the end of this movement a port 66 opens the combustion chamber to the cylinder and the charge is fired by a spark-plug 68. The exhaust valve 43 is opened near the bottom of the working stroke and continues. open until shortly before the opening of the port 66. The fuel. pump may be of variable stroke piston type, Fig. 3, the delivery being varied in response to variations in the air charge by means of a pipe by which the intercooler pressure is applied to a bellows controlling a rod which through a servomotor, rod 90 and linkage 92, 94 is connected to a member 75 supporting the piston 72 of the fuel pump cylinder 71 from which fuel is delivered through pipe 78 to the combustion chamber. The pump is driven from the crankshaft and a projection 85 actuates the pump piston the stroke of which is thus varied in accordance with position of member 75. Thus in operation the underside of the piston 26 serves to pump air into the intercooler, the air charge per stroke depending on the setting of the throttle. When equilibrium is reached, the same charge passes into the combustion chamber during each upstroke of the piston where it is mixed with the fuel before the combustion chamber is opened to the cylinder, at which point the charge is ignited by the plug 68. The cooling of the air in the intercooler removes the heat of compression and enables high compression ratios to be used without risk of pre-ignition. Instead of supplying the fuel to the combustion chamber, it may, as shown in Fig. 1 be supplied at the discharge end of the intercooler at a time when the intercooler is open to the combustion chamber. Other forms of fuel supply control may be used. Specifications 388,735, 478,422 and 478,471 and U.S.A. Specification 2,303,966 also are referred to.
GB16821/43A 1942-03-16 1943-10-13 Improvements in and relating to internal combustion engines Expired GB585391A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US585391XA 1942-03-16 1942-03-16

Publications (1)

Publication Number Publication Date
GB585391A true GB585391A (en) 1947-02-06

Family

ID=22017436

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16821/43A Expired GB585391A (en) 1942-03-16 1943-10-13 Improvements in and relating to internal combustion engines

Country Status (1)

Country Link
GB (1) GB585391A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0376909A1 (en) * 1988-12-30 1990-07-04 Gerhard Schmitz Internal-combustion engine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0376909A1 (en) * 1988-12-30 1990-07-04 Gerhard Schmitz Internal-combustion engine
BE1002364A4 (en) * 1988-12-30 1991-01-15 Schmitz Gerhard TWO - STAGE INTERNAL COMBUSTION ENGINE.

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