US1976286A - Cam gear for internal combustion engines - Google Patents

Cam gear for internal combustion engines Download PDF

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Publication number
US1976286A
US1976286A US600517A US60051732A US1976286A US 1976286 A US1976286 A US 1976286A US 600517 A US600517 A US 600517A US 60051732 A US60051732 A US 60051732A US 1976286 A US1976286 A US 1976286A
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US
United States
Prior art keywords
compression
internal combustion
cam gear
piston
combustion engines
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 - Lifetime
Application number
US600517A
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English (en)
Inventor
Kreidler Anton
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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
Application granted granted Critical
Publication of US1976286A publication Critical patent/US1976286A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F02B75/00—Other engines
    • F02B75/28—Engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders
    • F02B75/282—Engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders the pistons having equal strokes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B3/00—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F01B3/04—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis the piston motion being transmitted by curved surfaces
    • F01B3/045—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis the piston motion being transmitted by curved surfaces by two or more curved surfaces, e.g. for two or more pistons in one cylinder
    • 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
    • F02B75/26—Engines with cylinder axes coaxial with, or parallel or inclined to, main-shaft axis; Engines with cylinder axes arranged substantially tangentially to a circle centred on main-shaft 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
    • 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
    • F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18056—Rotary to or from reciprocating or oscillating
    • Y10T74/18296—Cam and slide
    • Y10T74/18304—Axial cam
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18056—Rotary to or from reciprocating or oscillating
    • Y10T74/18296—Cam and slide
    • Y10T74/18304—Axial cam
    • Y10T74/18312—Grooved
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18056—Rotary to or from reciprocating or oscillating
    • Y10T74/18296—Cam and slide
    • Y10T74/18304—Axial cam
    • Y10T74/18312—Grooved
    • Y10T74/1832—Multiple screw
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/21—Elements
    • Y10T74/2101—Cams

Definitions

  • the invention relates to internal combustion engines (for I example explosion-Diesel twostroke cycle or multi-fstroke cycle engines) in which the piston movement is converted into the rotary motion of the driving shaft not by crank gear but by cam gear.
  • internal combustion engines for I example explosion-Diesel twostroke cycle or multi-fstroke cycle engines
  • cam gear It is a particular advantage of cam gear that the course of the piston movement is not confined to that determined bythe crank gear, but that it is possible by suitable configuration of the cam tracks to move the piston as desired during one revolution of the engine shaft, for example, to accelerate the movement of the piston, to retard it or even temporarily to stop it entirely.
  • the invention utilizes this advantage, in such internal combustion engines, in which the fuel is supplied during or before the compression of the air for combustion for the purpose of securing spontaneous ignition of the fuel mixture at the correct instant instead of by electrical ignition or by the incandescent method of ignition.
  • This is effected by appropriate configuration of the cam track (compression cam curve) provided on the cam, which cam track effects the compression of the mixture.
  • This compression cam curve is so constructed according to the invention that the piston moved thereby first of all precompresses the fuel mixture to an extentsuch that spontaneous ignition does not yet occur, while the compression curve rises very steeply towards its end, thereby effecting 'such rapid and high compression of the fuel mixture that spontaneous ignition of the latter occurs.
  • the new type of compression process just described is also applicable in the case of a Diesel engine in which the fuel is only admitted at the end of the high compression of the fresh air. In this case, fresh air is precompressed. first of all, but the rapid and high compression of the fresh air occurring towards the end of the compression curve then brings the said air intensively to a state of incandescence, hence considerably promoting the spontaneous ignition of the fuel which is now admitted.
  • Figure- 1 shows in axial section the cam gear applied to a multi-cylinder tw -stroke cycle internal combustion engine with pistons running counter to one another.
  • Figure 2 shows on a larger scale a compression and a working curve in development after and the position of the working piston spontaneous ignition of the fuel has occurred.
  • 1 and 2 are the pistons
  • 3 is the cam mounted on the driving shaft 4.
  • the pistons run on the tracks of the said cam by means of rollers '7 or slide shoes.
  • the admission and exhaust ports are shown at 5 and 6 respectively.
  • a piston operated cam gear for internal combustion engines of the Diesel two-stroke cycle and multi-stroke cycle type including a cam track having compression and working portions
  • the part of the compression portion immediately adjacent the working portion having a steeper inclination than the remaining compression portion whereby to effect a sudden increase of pressure at a more rapid rate than at the beginning of the compression period.
  • a piston operated cam gear for internal vided with a substantially rectilinear transition portion between the compression and working portions.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Valve Device For Special Equipments (AREA)
US600517A 1931-04-15 1932-03-22 Cam gear for internal combustion engines Expired - Lifetime US1976286A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT377614X 1931-04-15

Publications (1)

Publication Number Publication Date
US1976286A true US1976286A (en) 1934-10-09

Family

ID=3673076

Family Applications (1)

Application Number Title Priority Date Filing Date
US600517A Expired - Lifetime US1976286A (en) 1931-04-15 1932-03-22 Cam gear for internal combustion engines

Country Status (3)

Country Link
US (1) US1976286A (fr)
FR (1) FR732629A (fr)
GB (1) GB377614A (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2532106A (en) * 1946-12-06 1950-11-28 Korsgren Theodore Yngve Multiple opposed piston engine
US3314403A (en) * 1964-02-07 1967-04-18 Participations Soc Et Autogenerators
US5031581A (en) * 1988-08-29 1991-07-16 Powell Brian L Crankless reciprocating machine
US5743220A (en) * 1996-07-29 1998-04-28 Guarner-Lans; Enrique Eduardo Internal combustion engine with central chamber
US6899065B2 (en) 2002-04-30 2005-05-31 Thomas Engine Company Radial-valve gear apparatus for barrel engine
US6986342B2 (en) 1999-03-23 2006-01-17 Thomas Engine Copany Homogenous charge compression ignition and barrel engines
AT501400A1 (de) * 2004-12-22 2006-08-15 Walter Ing Falkinger Wirkungsgradsteigerung bei hubkolbenmotoren
US7469662B2 (en) 1999-03-23 2008-12-30 Thomas Engine Company, Llc Homogeneous charge compression ignition engine with combustion phasing
US8046299B2 (en) 2003-10-15 2011-10-25 American Express Travel Related Services Company, Inc. Systems, methods, and devices for selling transaction accounts
US20200141312A1 (en) * 2018-11-07 2020-05-07 Hts Llc Opposed piston engine

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2376719A (en) * 2001-04-27 2002-12-24 Martin Leonard Stanley Flint Engine with two wave barrel cam having dwell periods between rise and return and return and rise profiles
GB2477272B (en) 2010-01-27 2014-06-25 Two Stroke Developments Ltd Internal combustion engine comprising piston dwell mechanism
GB2511781A (en) * 2013-03-12 2014-09-17 Two Stroke Developments Ltd Improved opposed piston engine

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2532106A (en) * 1946-12-06 1950-11-28 Korsgren Theodore Yngve Multiple opposed piston engine
US3314403A (en) * 1964-02-07 1967-04-18 Participations Soc Et Autogenerators
US5031581A (en) * 1988-08-29 1991-07-16 Powell Brian L Crankless reciprocating machine
US5743220A (en) * 1996-07-29 1998-04-28 Guarner-Lans; Enrique Eduardo Internal combustion engine with central chamber
US6986342B2 (en) 1999-03-23 2006-01-17 Thomas Engine Copany Homogenous charge compression ignition and barrel engines
US7469662B2 (en) 1999-03-23 2008-12-30 Thomas Engine Company, Llc Homogeneous charge compression ignition engine with combustion phasing
US6899065B2 (en) 2002-04-30 2005-05-31 Thomas Engine Company Radial-valve gear apparatus for barrel engine
US8046299B2 (en) 2003-10-15 2011-10-25 American Express Travel Related Services Company, Inc. Systems, methods, and devices for selling transaction accounts
AT501400A1 (de) * 2004-12-22 2006-08-15 Walter Ing Falkinger Wirkungsgradsteigerung bei hubkolbenmotoren
US20200141312A1 (en) * 2018-11-07 2020-05-07 Hts Llc Opposed piston engine
US10947846B2 (en) * 2018-11-07 2021-03-16 Hts Llc Opposed piston engine
US11401812B2 (en) 2018-11-07 2022-08-02 Hts Llc Opposed piston engine

Also Published As

Publication number Publication date
GB377614A (en) 1932-07-28
FR732629A (fr) 1932-09-23

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