CA2122424A1 - Four-Stroke Internal Combustion Engine - Google Patents

Four-Stroke Internal Combustion Engine

Info

Publication number
CA2122424A1
CA2122424A1 CA2122424A CA2122424A CA2122424A1 CA 2122424 A1 CA2122424 A1 CA 2122424A1 CA 2122424 A CA2122424 A CA 2122424A CA 2122424 A CA2122424 A CA 2122424A CA 2122424 A1 CA2122424 A1 CA 2122424A1
Authority
CA
Canada
Prior art keywords
cylinder
crankcase
engine
mixture
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.)
Granted
Application number
CA2122424A
Other languages
French (fr)
Other versions
CA2122424C (en
Inventor
Giuseppe P. I. Todero
Rodney L. Harms
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.)
Mcculloch Corp
Original Assignee
Mcculloch Corp
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26767723&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2122424(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from US08/082,677 external-priority patent/US5347967A/en
Application filed by Mcculloch Corp filed Critical Mcculloch Corp
Publication of CA2122424A1 publication Critical patent/CA2122424A1/en
Application granted granted Critical
Publication of CA2122424C publication Critical patent/CA2122424C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
    • F02B63/02—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for hand-held tools
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M3/00—Lubrication specially adapted for engines with crankcase compression of fuel-air mixture or for other engines in which lubricant is contained in fuel, combustion air, or fuel-air mixture
    • F01M3/04—Lubrication specially adapted for engines with crankcase compression of fuel-air mixture or for other engines in which lubricant is contained in fuel, combustion air, or fuel-air mixture for upper cylinder lubrication only
    • 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
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • 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
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B75/24—Multi-cylinder engines with cylinders arranged oppositely relative to main shaft and of "flat" type
    • F02B75/243—Multi-cylinder engines with cylinders arranged oppositely relative to main shaft and of "flat" type with only one crankshaft of the "boxer" type, e.g. all connecting rods attached to separate crankshaft bearings
    • 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
    • F02B75/34—Ultra-small engines, e.g. for driving models
    • 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
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B2075/1804—Number of cylinders
    • F02B2075/1808—Number of cylinders two
    • 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
    • F02B2275/22—Side valves

Abstract

A four-stroke engine comprising an engine frame including a block (111) and a head (113), the block forming at least one cylinder (114) and a crankcase (112). A piston (116) is mounted for reciprocation in the cylinder (114), and a crank (117) and connecting rod (118) are mounted in the crankcase (112) and connected to the piston (116). The crankcase (112) includes a fuel inlet port (128) and an outlet port, and a duct connects the outlet port (131) to an intake passage (132) in the head. The inlet port (128) is connected to a supply of a combustible mixture comprising fuel, lubricating oil and air. During engine operation, the mixture flows through the crankcase (112), the duct (132), and the air intake passage (128) to the cylinder (114). Valves (119,120) and valve actuating mechanisms control the flow of the mixture to the cylinder (114) and the flow of exhaust from the cylinder. The oil in the mixture lubricates the engine parts in the crankcase (112), the valves (119,120) and the valve actuating mechanisms. The duct (132) preferably forms a plenum or surge tank containing the mixture under pressure. The engine may include more than one cylinder and piston, such as a two-cylinder engine having pistons which move in synchronism to produce crankcase compression. <IMAGE>
CA002122424A 1993-06-25 1994-04-28 Four-stroke internal combustion engine Expired - Fee Related CA2122424C (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US08/082,677 US5347967A (en) 1993-06-25 1993-06-25 Four-stroke internal combustion engine
US08/082,677 1993-06-25
US08/219,164 1994-04-01
US08/219,164 US5579735A (en) 1993-06-25 1994-04-01 Four-stroke internal combustion engine

Publications (2)

Publication Number Publication Date
CA2122424A1 true CA2122424A1 (en) 1994-12-26
CA2122424C CA2122424C (en) 1999-05-25

Family

ID=26767723

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002122424A Expired - Fee Related CA2122424C (en) 1993-06-25 1994-04-28 Four-stroke internal combustion engine

Country Status (14)

Country Link
EP (1) EP0631040B1 (en)
JP (1) JPH07150920A (en)
AT (1) ATE163733T1 (en)
AU (1) AU5942494A (en)
BR (1) BR9402438A (en)
CA (1) CA2122424C (en)
CZ (1) CZ156094A3 (en)
DE (1) DE69408735T2 (en)
ES (1) ES2115798T3 (en)
HU (1) HUT70994A (en)
IL (1) IL109680A0 (en)
NO (1) NO941771L (en)
NZ (1) NZ260499A (en)
PL (1) PL303491A1 (en)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08303238A (en) * 1995-05-11 1996-11-19 Ishikawajima Shibaura Mach Co Ltd Four-cycle engine
EP0775811B1 (en) * 1995-11-24 2001-08-22 Yamaha Hatsudoki Kabushiki Kaisha Internal combustion engine
US5778838A (en) * 1995-11-29 1998-07-14 Yamaha Hatsudoki Kabushiki Kaisha Fuel supply device for crankcase chamber supercharged engine
US6810849B1 (en) 1999-01-25 2004-11-02 Briggs & Stratton Corporation Four-stroke internal combustion engine
DE29918516U1 (en) 1999-10-20 2001-03-01 Dolmar Gmbh Compact four-stroke internal combustion engine, especially for use in a portable work device
AUPQ491099A0 (en) 1999-12-30 2000-02-03 Ward, Antony John Fowler Internal combustion engine
AU768065B2 (en) * 1999-12-30 2003-12-04 Ecoforce Pty Ltd Internal combustion engines
AT411091B (en) 2000-11-30 2003-09-25 Kirchberger Roland Dipl Ing FOUR-STROKE COMBUSTION ENGINE
DE10064519B4 (en) * 2000-12-22 2014-11-06 Andreas Stihl Ag & Co. Membrane carburetor for an internal combustion engine
JP2003021010A (en) 2001-07-06 2003-01-24 Shin Daiwa Kogyo Co Ltd Air cleaner in small-sized engine
JP2003056313A (en) 2001-08-10 2003-02-26 Shin Daiwa Kogyo Co Ltd Engine
US7096844B2 (en) * 2003-03-18 2006-08-29 Husqvarna Outdoor Products Inc. Four-stroke engine lubricated by fuel mixture
EP1500803B1 (en) * 2003-07-22 2007-09-26 Cristian Dalla Riva Powered hand held tool whose weight when operating is born by the user and equipped with an explosion motor fuelled with gasoline
DE202005017735U1 (en) * 2005-11-12 2007-04-12 Dolmar Gmbh Driving device e.g. for hand-held implement, has combustion engine with engine housing and fuel air mixture inlet whereby turbo charger loads fuel air mixture into combustion engine
BE1023256B1 (en) * 2015-10-30 2017-01-12 invEngin BVBA Cylinder unit and combustion engine with such cylinder unit
DE102017120109B4 (en) * 2017-08-31 2019-05-23 ikra GmbH Lubricating device and internal combustion engine with such a lubricating device
CN107676173A (en) * 2017-09-28 2018-02-09 山东华盛中天机械集团股份有限公司 The four-stroke gasoline engine for being burnt and being lubricated with two-stroke gasoline engine fuel
CN107859545A (en) * 2017-12-11 2018-03-30 永康威力科技股份有限公司 A kind of four-stroke engine oil channel structures and the four-stroke engine comprising the structure
CN109826704A (en) * 2019-02-01 2019-05-31 浙江派尼尔科技股份有限公司 A kind of separation lubrication two-stroke brush cutter dynamic structure and working method
JP2023124276A (en) * 2022-02-25 2023-09-06 株式会社日本ビデオセンター engine

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2519695B1 (en) * 1982-01-08 1986-09-05 Moteur Moderne Le SELF-CHARGED FOUR-STROKE ENGINE
JPS5977036A (en) * 1982-10-22 1984-05-02 Daihatsu Motor Co Ltd Supercharging system internal-combustion engine
JPS59229017A (en) * 1983-06-10 1984-12-22 Kenji Sakaki Four-cycle engine
JPS6149130A (en) * 1984-08-16 1986-03-11 Nec Corp 4-cycle internal-combustion engine
US4708107A (en) * 1985-08-15 1987-11-24 Stinebaugh Donald E Compact pressure-boosted internal combustion engine

Also Published As

Publication number Publication date
ATE163733T1 (en) 1998-03-15
EP0631040B1 (en) 1998-03-04
ES2115798T3 (en) 1998-07-01
NO941771D0 (en) 1994-05-11
AU5942494A (en) 1995-01-05
NO941771L (en) 1994-12-27
HUT70994A (en) 1995-11-28
PL303491A1 (en) 1995-01-09
CA2122424C (en) 1999-05-25
DE69408735T2 (en) 1998-06-25
NZ260499A (en) 1996-06-25
JPH07150920A (en) 1995-06-13
DE69408735D1 (en) 1998-04-09
CZ156094A3 (en) 1995-04-12
BR9402438A (en) 1995-01-24
EP0631040A1 (en) 1994-12-28
HU9401531D0 (en) 1994-08-29
IL109680A0 (en) 1994-08-26

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20140429