GB1504279A - Four stroke internal combustion engine - Google Patents

Four stroke internal combustion engine

Info

Publication number
GB1504279A
GB1504279A GB4840674A GB4840674A GB1504279A GB 1504279 A GB1504279 A GB 1504279A GB 4840674 A GB4840674 A GB 4840674A GB 4840674 A GB4840674 A GB 4840674A GB 1504279 A GB1504279 A GB 1504279A
Authority
GB
United Kingdom
Prior art keywords
crank
chamber
case
oil
piston
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
GB4840674A
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.)
LITZ H
Original Assignee
LITZ H
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 LITZ H filed Critical LITZ H
Priority to GB4840674A priority Critical patent/GB1504279A/en
Publication of GB1504279A publication Critical patent/GB1504279A/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
    • F02B33/00—Engines characterised by provision of pumps for charging or scavenging
    • F02B33/02—Engines with reciprocating-piston pumps; Engines with crankcase pumps
    • F02B33/26—Four-stroke engines characterised by having crankcase pumps
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)

Abstract

1504279 Charging IC engines; lubricating pistons H LITZ 27 Jan 1975 48406/74 Heading F1B [Also in Division F2] A four-stroke I.C. engine comprises a cylinder 31 with a combustion chamber 34 having intake and exhaust valves 15, 43; a crank-case 50 enclosing a crank-case chamber of generally cylindrical shape, the crank-case and cylinder forming a compression chamber for compressing air, or air fuel mixture for use in the combustion chamber; a crank-shaft 51 in the crank-case 50 having an exterior surface contour which substantially matches the interior surface contour of the crank-case; a piston 30 slidable in the cylinder to cause above atmospheric pressure in the compression chamber on its down stroke and below atmospheric pressure therein on its up stroke. A conduit which may be a holding chamber 16a communicates with the combustion chamber intake valve 15 and the crank-case chamber via a one-way valve 40, the crank-case chamber also communi- cating via a one-way valve 4 with a source of air or mixture, the valve 4 opening automatically when the compression chamber pressure is below atmospheric pressure and the valve 40 opening automatically when the compression chamber pressure is above the holding chamber pressure. The piston is lubricated by carrying oil from a source via a lift tube 20 associated with the connecting rod 19 linking piston 30 and crank-shaft 51. Oil passes via port 22, Fig. 7, non-return valve 22a and tube 20 with riffles 21 to port 24 leading to channel 13a in wrist pin 14 on which the piston is mounted, the oil then passing via passageways 11 to the periphery of the piston 30. The riffles 21 splash oil upwards during operation of the engine. The oil is carried to the port 22 through crank-shaft 51 and along connecting rod bearing 17. Alternatively the piston may be lubricated via oil holes 2 in its periphery or oil may be added to the charge entering the compression chamber to lubricate the interior walls of the cylinder 31 and the wrist pin 14. The crank-shaft 51 is balanced by having holes (not shown), bored therein, which are sealed or filled with lightweight material so as not to increase the volume of the crank-case chamber.
GB4840674A 1975-01-27 1975-01-27 Four stroke internal combustion engine Expired GB1504279A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4840674A GB1504279A (en) 1975-01-27 1975-01-27 Four stroke internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4840674A GB1504279A (en) 1975-01-27 1975-01-27 Four stroke internal combustion engine

Publications (1)

Publication Number Publication Date
GB1504279A true GB1504279A (en) 1978-03-15

Family

ID=10448508

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4840674A Expired GB1504279A (en) 1975-01-27 1975-01-27 Four stroke internal combustion engine

Country Status (1)

Country Link
GB (1) GB1504279A (en)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4220200A1 (en) * 1991-06-20 1993-01-21 Mitsubishi Heavy Ind Ltd FOUR-STOCK COMBUSTION ENGINE
GB2434405A (en) * 2006-01-20 2007-07-25 Keith Gordon Hall Internal combustion engine with disc drive mechanism and crankcase compression of intake air
US10465629B2 (en) 2017-03-30 2019-11-05 Quest Engines, LLC Internal combustion engine having piston with deflector channels and complementary cylinder head
US10526953B2 (en) 2017-03-30 2020-01-07 Quest Engines, LLC Internal combustion engine
US10590813B2 (en) 2017-03-30 2020-03-17 Quest Engines, LLC Internal combustion engine
US10590834B2 (en) 2017-03-30 2020-03-17 Quest Engines, LLC Internal combustion engine
US10598285B2 (en) 2017-03-30 2020-03-24 Quest Engines, LLC Piston sealing system
US10724428B2 (en) 2017-04-28 2020-07-28 Quest Engines, LLC Variable volume chamber device
US10753308B2 (en) 2017-03-30 2020-08-25 Quest Engines, LLC Internal combustion engine
US10753267B2 (en) 2018-01-26 2020-08-25 Quest Engines, LLC Method and apparatus for producing stratified streams
US10808866B2 (en) 2017-09-29 2020-10-20 Quest Engines, LLC Apparatus and methods for controlling the movement of matter
US10883498B2 (en) 2017-05-04 2021-01-05 Quest Engines, LLC Variable volume chamber for interaction with a fluid
US10989138B2 (en) 2017-03-30 2021-04-27 Quest Engines, LLC Internal combustion engine
US11041456B2 (en) 2017-03-30 2021-06-22 Quest Engines, LLC Internal combustion engine
US11134335B2 (en) 2018-01-26 2021-09-28 Quest Engines, LLC Audio source waveguide

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4220200C2 (en) * 1991-06-20 2000-09-21 Mitsubishi Heavy Ind Ltd Four stroke internal combustion engine
DE4220200A1 (en) * 1991-06-20 1993-01-21 Mitsubishi Heavy Ind Ltd FOUR-STOCK COMBUSTION ENGINE
GB2434405A (en) * 2006-01-20 2007-07-25 Keith Gordon Hall Internal combustion engine with disc drive mechanism and crankcase compression of intake air
US10989138B2 (en) 2017-03-30 2021-04-27 Quest Engines, LLC Internal combustion engine
US10465629B2 (en) 2017-03-30 2019-11-05 Quest Engines, LLC Internal combustion engine having piston with deflector channels and complementary cylinder head
US10526953B2 (en) 2017-03-30 2020-01-07 Quest Engines, LLC Internal combustion engine
US10590813B2 (en) 2017-03-30 2020-03-17 Quest Engines, LLC Internal combustion engine
US10590834B2 (en) 2017-03-30 2020-03-17 Quest Engines, LLC Internal combustion engine
US10598285B2 (en) 2017-03-30 2020-03-24 Quest Engines, LLC Piston sealing system
US10753308B2 (en) 2017-03-30 2020-08-25 Quest Engines, LLC Internal combustion engine
US11041456B2 (en) 2017-03-30 2021-06-22 Quest Engines, LLC Internal combustion engine
US10724428B2 (en) 2017-04-28 2020-07-28 Quest Engines, LLC Variable volume chamber device
US10883498B2 (en) 2017-05-04 2021-01-05 Quest Engines, LLC Variable volume chamber for interaction with a fluid
US10808866B2 (en) 2017-09-29 2020-10-20 Quest Engines, LLC Apparatus and methods for controlling the movement of matter
US11060636B2 (en) 2017-09-29 2021-07-13 Quest Engines, LLC Engines and pumps with motionless one-way valve
US10753267B2 (en) 2018-01-26 2020-08-25 Quest Engines, LLC Method and apparatus for producing stratified streams
US11134335B2 (en) 2018-01-26 2021-09-28 Quest Engines, LLC Audio source waveguide

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee