WO1997016625A1 - Adaptive motor mechanism - Google Patents

Adaptive motor mechanism Download PDF

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Publication number
WO1997016625A1
WO1997016625A1 PCT/RO1996/000002 RO9600002W WO9716625A1 WO 1997016625 A1 WO1997016625 A1 WO 1997016625A1 RO 9600002 W RO9600002 W RO 9600002W WO 9716625 A1 WO9716625 A1 WO 9716625A1
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WO
WIPO (PCT)
Prior art keywords
beeing
crank
motion
interior
satellite
Prior art date
Application number
PCT/RO1996/000002
Other languages
French (fr)
Inventor
Liviu Grigorian Giurca
Original Assignee
Liviu Grigorian Giurca
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 Liviu Grigorian Giurca filed Critical Liviu Grigorian Giurca
Priority to EP96901158A priority Critical patent/EP0874948A1/en
Publication of WO1997016625A1 publication Critical patent/WO1997016625A1/en

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Classifications

    • 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
    • F01B9/00—Reciprocating-piston machines or engines characterised by connections between pistons and main shafts and not specific to preceding groups
    • F01B9/04—Reciprocating-piston machines or engines characterised by connections between pistons and main shafts and not specific to preceding groups with rotary main shaft other than crankshaft
    • F01B9/047—Reciprocating-piston machines or engines characterised by connections between pistons and main shafts and not specific to preceding groups with rotary main shaft other than crankshaft with rack and pinion
    • 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
    • F01B9/00—Reciprocating-piston machines or engines characterised by connections between pistons and main shafts and not specific to preceding groups
    • F01B9/02—Reciprocating-piston machines or engines characterised by connections between pistons and main shafts and not specific to preceding groups with crankshaft
    • F01B9/023—Reciprocating-piston machines or engines characterised by connections between pistons and main shafts and not specific to preceding groups with crankshaft of Bourke-type or Scotch yoke
    • 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
    • F02B75/04—Engines with variable distances between pistons at top dead-centre positions and cylinder heads
    • F02B75/047—Engines with variable distances between pistons at top dead-centre positions and cylinder heads by means of variable crankshaft position
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H21/00—Gearings comprising primarily only links or levers, with or without slides
    • F16H21/10—Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane
    • F16H21/16—Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane for interconverting rotary motion and reciprocating motion
    • F16H21/18—Crank gearings; Eccentric gearings
    • F16H21/36—Crank gearings; Eccentric gearings without swinging connecting-rod, e.g. with epicyclic parallel motion, slot-and-crank motion
    • F16H21/365—Crank gearings; Eccentric gearings without swinging connecting-rod, e.g. with epicyclic parallel motion, slot-and-crank motion with planetary gearing having a ratio of 2:1 between sun gear and planet gear

Definitions

  • the present invention relates to an adaptiv motor mechanism which achieves the transformation of the alternative motion of translation in rotation motion and conversely, concomitantly with the continuous adjustment of the stroke.
  • This mechanism is useful for thermic and hydraulic machines, for machine tools and for other structure.
  • the most used mechanism for thermic and hydraulic machines is that one with connecting rod and crankshaft. Although it is a simple mechanism.it has many desadvantages.lt produces a considerable pressing force between piston and cylinder which has negative effects as to the durability.lt has a fixed stroke of the piston and that means for the engines a fixed compression ratio and a great dependence on the fuel sort.
  • the fixed compression ratio has a negative effect as to the super-charging process becose is necessary to reduce the air pression for certain conditions.
  • the diesel engines have a great compression ratio fixed for starting conditions but that is not adequate for the fuel economy and for the size of the engines.For gasoline engines the fixed compression ratio has a negative influence as to the volumetrical efficiency for little ana partial load.With this mechanism is very difficult to achieve a working interruption for certain cylinders to the little and partial load while other cylinders work on.
  • the fixed stroke means an invariable flow.
  • a adaptiv motor mechanism having, in a first instance, at least one piston jointed with a connecting rod which transmits its alternative motion of translation to a crank pin .
  • at least one piston in solidarity with a push rod, transmits its alternative mot i on of t ranslat ion t o a crank pin, using a slide which can oscilate inside a guide.
  • the crank pin belongs to a crank shaft which contains too a crank and a satellite which engages with an interior geared plate, considerated fixed for the same adjustment, the crank and the satellite having a planetary motion inside a main shaft which turns inside a crankcase.
  • the radial position of the interior geared plate can be changed using a geared sector , situated at the external side of the interior geared plate, this geared segment engaging with a worm.
  • the worm is drived, in a first variant, by a step-by-step motor or, in a second variant, by an actuator which is controled by an
  • the adaptiv motor mechanism offers certain advantges. To the maximum stroke position the force between piston and cylinder is zero and in other positions is much diminiched. This mechanism can achieve a continuous variation of the stroke and that means the continuous variation of the compression ratio and certainly of the capacity. That means for engines a very good adaption of the combustion parameters to the necessites and means too a maximalize of the effective efficiency.Other consequence is that one as the same engine can use many types of fuel.This mechanism can achieve a stroke equal with zero and that means for engines the possibility of the working interuption for certain cylinders to the little and partial load while other cy- linders work en.
  • variable capacity means for hydraulic machines a variable flow.
  • Fig.1 is an axial section through the adaptiv motor mechanism with connecting rods
  • Fig.2 is a section in accordance to the tract A-A from Fig.1;
  • Fig.3 is a section in accordance to the tract B-B from Fig.1;
  • Fig.4 is an axial section through the adaptiv motor mechanism with slide
  • Fig.5 is a section in accordance to the tract C-C from Fig.4.
  • the first mode of carrying out is represented in Fig.1, 2 and 3.
  • This mechanism uses two pistons 1 which transmit either its alternative motion of translation to a connecting rod 2 using a bolt 3.
  • the connecting rods 2 are jointed to the other end with a crank pin a which belongs to a crank shaft 4.
  • the crank pin a is in solidarity with a crank b,having a circular forme,and which is in solidarity too with a satellite c.
  • the satellite c engages with an interior geared plate 5, considerated fixe ⁇ for the same adjustment.
  • the crank shaft 4 has too a journal d in prolongation of the satellite c.
  • the crank b,the satellite c and the journal d have together a planetary motion inside a main shaft 6.
  • crank pin a is forced to have a linear motion and the main shaft 6 is forced to have a rotation motion inside a case 7.
  • the main shaft 6 has a breach e whereby emerges that portion of the satellite c which engages with the interior geared plate 5.
  • the radial position of the interior geared plate 5 can be changed using a geared segment f situated to the external side of the interior geared plate 5,which engages with a worm 8.
  • the worm 8 has a axle g which is actuated by a step-by-step motor 9.
  • the rotation motion of the step-by-step motor 9 is controled by an electronic unit 10 which receives informations from certain specific sensors 11 and from a selector switch 12 which has many posit ions.
  • the selector switch 12 transmits the option of the user.
  • the interior geared plate 5 is hindered to have axial motion by a cover 13 fixed in the case 7.
  • the second mode of carrying out is represented in Fig. 4 and 5.
  • This mechanism uses two pistons 1 solidarizated by a push rod 14 which has , in the midle zone, a guide h.
  • the ensemble maked up the pistons 1 and the push rod 14 transmits its alternative motion of translation to a slide 15 which can oscilate inside the guide h and which is jointed to the crank pin a.
  • the push rod 14 takes its alternative motion of translation as two guides 16, fixed in the case 7.
  • the rest of this mechanism is similary with that describet in the first instance exepting the driving of the. worm a.
  • the axle g has a gear i , processed on it,which engages with a gear rack 17.
  • the gear rack 17 is drivit in linear motion by an actuator 18 which is controled by the electronic unit 10.
  • the worm 8 is turned with a certain angle the interior geared plate 5 what brings about the rotation with the same angle of the translation axis of the crank pin a,termed Y.
  • the stroke of the pistons 1 is diminished after a cosine law.
  • the connecting rods 2 past the translation motion,will have too a swinging motion.
  • the slide 15 will have, past the translation motion after the axis X, a translation motion after an axis which coincides with the axis of the guide g, t ermed Z, which is perpendiculry on the axis X.
  • the interior geared plate 5 is turned with 90° given the situation of the maximum stroke position, in the case of the second constructive variant, it is interrupted the motion of the pistons 1, the slide 15 oscillating only after the axis Z which coincides with the symmetrical axis of the mechanism. In this position the mechanism has the function of a coupled clutch because the stroke is equal with zero while the main shaft 6 can turn on.
  • the specific sensors 11 transmit to the electronic unit 10 the informations about the charge of the engine, the rotation speed, the temperature of the cooling liquide,the temperature of the environment, the pression of the air in the intake manifoild, the contents of oxygen into the burned gases and about the knocking.
  • the selector switch 12 serves for the transmission of the option of the user which can resolve a certain variant of programme memorized by the electronic unit 10, such as:
  • the engine will operate in the most economical modality. That means as the compression ratio will be regulate so as to the effective efficiency to be maximum for all the working loads.
  • the engine will operate in the most reduced polutting modality . That means as the compression ratio will be regulate so as to the contents of harmful components to be at minimum in all the working loads.
  • the specific sensors 11 transmit to the electronic unit 10 the informations about the outlet pressure of the working oil, the rotation speed of the main shaft 6, the inlet pressure of the working oil, etcetera.
  • the selector switch 12 serves for the transmisson of the option of the user which can resolve the value of the flow or the intteruption of the working of the pump while the driving motor works on (only for the second constructive variant).
  • the worm 8 is possible to be actuated, for simple applications, using a kinematical chain directly by the user (without electronic unit, sensors,etcetera).

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transmission Devices (AREA)

Abstract

The present invention relates to an adaptive motor mechanism which achieves the transformation of the alternative motion of translation in rotation motion and conversely, concomitantly with the continuous adjustment of the stroke. This mechanism has two pistons (1) which drive, using two connecting rods (3), a crank shaft (4) which turns inside a main shaft (6). The crank shaft (6) includes a satelitte (c) which engages with an interior geared plate (5), considered fixed for the same adjustment. The interior geared plate (5) has to the external side a geared segment (f) engaging with a worm (8) which can change the radial position of the interior geared plate (5) and therefore the stroke of the pistons (1). This mechanism can be used for thermic and hydraulic machines or for any mechanical structure having need of variable stroke.

Description

ADAPTIVE MOTOR MECHANISM
TECHNICAL FIELD
The present invention relates to an adaptiv motor mechanism which achieves the transformation of the alternative motion of translation in rotation motion and conversely, concomitantly with the continuous adjustment of the stroke.This mechanism is useful for thermic and hydraulic machines, for machine tools and for other structure.
BACKGROUND ART
The most used mechanism for thermic and hydraulic machines is that one with connecting rod and crankshaft. Although it is a simple mechanism.it has many desadvantages.lt produces a considerable pressing force between piston and cylinder which has negative effects as to the durability.lt has a fixed stroke of the piston and that means for the engines a fixed compression ratio and a great dependence on the fuel sort.The fixed compression ratio has a negative effect as to the super-charging process becose is necessary to reduce the air pression for certain conditions.The diesel engines have a great compression ratio fixed for starting conditions but that is not adequate for the fuel economy and for the size of the engines.For gasoline engines the fixed compression ratio has a negative influence as to the volumetrical efficiency for little ana partial load.With this mechanism is very difficult to achieve a working interruption for certain cylinders to the little and partial load while other cylinders work on.
For the hydraulic pumps which use this mechanism, the fixed stroke means an invariable flow. OBJECT OF THE INVENTION
It is therfore an object of the present invention to provide such a continuous variable stroke of the piston is operated most efficiently in the thermic and hydraulic machines. DISCLOSURE OF THE INVENTION
This object is attained according to the instant invention in a adaptiv motor mechanism having, in a first instance, at least one piston jointed with a connecting rod which transmits its alternative motion of translation to a crank pin . In the second instance at least one piston, in solidarity with a push rod, transmits its alternative mot i on of t ranslat ion t o a crank pin, using a slide which can oscilate inside a guide.The crank pin belongs to a crank shaft which contains too a crank and a satellite which engages with an interior geared plate, considerated fixed for the same adjustment, the crank and the satellite having a planetary motion inside a main shaft which turns inside a crankcase.The radial position of the interior geared plate can be changed using a geared sector , situated at the external side of the interior geared plate, this geared segment engaging with a worm.The worm is drived, in a first variant, by a step-by-step motor or, in a second variant, by an actuator which is controled by an electronic unit receiving informations from certain specific sensors and from a selector switch which transmits the option of the user.The variation of a radial position of the interior geared plate brings about the change of the piston's stroke. For the good working of this mechanism is necessary that the distance between the rotation axis of the crank and the axis of the crank pin to be equal to the pitch radius of the satellite and equal to the half pitch radius of the interior geared plate. ADVANTAGEOUS EFFECTS
The adaptiv motor mechanism, according to the present invention offers certain advantges. To the maximum stroke position the force between piston and cylinder is zero and in other positions is much diminiched. This mechanism can achieve a continuous variation of the stroke and that means the continuous variation of the compression ratio and certainly of the capacity. That means for engines a very good adaption of the combustion parameters to the necessites and means too a maximalize of the effective efficiency.Other consequence is that one as the same engine can use many types of fuel.This mechanism can achieve a stroke equal with zero and that means for engines the possibility of the working interuption for certain cylinders to the little and partial load while other cy- linders work en.
The variable capacity means for hydraulic machines a variable flow.
BRIEF DESCRIPTION OF THE DRAWINGS
Fig.1 is an axial section through the adaptiv motor mechanism with connecting rods;
Fig.2 is a section in accordance to the tract A-A from Fig.1;
Fig.3 is a section in accordance to the tract B-B from Fig.1;
Fig.4 is an axial section through the adaptiv motor mechanism with slide;
Fig.5 is a section in accordance to the tract C-C from Fig.4.
BEST MODES OF CARRYING OUT
The first mode of carrying out is represented in Fig.1, 2 and 3.This mechanism uses two pistons 1 which transmit either its alternative motion of translation to a connecting rod 2 using a bolt 3.The connecting rods 2 are jointed to the other end with a crank pin a which belongs to a crank shaft 4.The crank pin a is in solidarity with a crank b,having a circular forme,and which is in solidarity too with a satellite c.The satellite c engages with an interior geared plate 5, considerated fixeα for the same adjustment.The crank shaft 4 has too a journal d in prolongation of the satellite c.The crank b,the satellite c and the journal d have together a planetary motion inside a main shaft 6. In the same time the crank pin a is forced to have a linear motion and the main shaft 6 is forced to have a rotation motion inside a case 7.The main shaft 6 has a breach e whereby emerges that portion of the satellite c which engages with the interior geared plate 5.The radial position of the interior geared plate 5 can be changed using a geared segment f situated to the external side of the interior geared plate 5,which engages with a worm 8.The worm 8 has a axle g which is actuated by a step-by-step motor 9. The rotation motion of the step-by-step motor 9 is controled by an electronic unit 10 which receives informations from certain specific sensors 11 and from a selector switch 12 which has many posit ions.The selector switch 12 transmits the option of the user.The interior geared plate 5 is hindered to have axial motion by a cover 13 fixed in the case 7.
The second mode of carrying out is represented in Fig. 4 and 5.This mechanism uses two pistons 1 solidarizated by a push rod 14 which has , in the midle zone, a guide h. The ensemble maked up the pistons 1 and the push rod 14 transmits its alternative motion of translation to a slide 15 which can oscilate inside the guide h and which is jointed to the crank pin a.The push rod 14 takes its alternative motion of translation as two guides 16, fixed in the case 7.The rest of this mechanism is similary with that describet in the first instance exepting the driving of the. worm a.The axle g has a gear i , processed on it,which engages with a gear rack 17.The gear rack 17 is drivit in linear motion by an actuator 18 which is controled by the electronic unit 10.
The both variantes can operate only with one piston 1, but with two pistons 1 the mechanism is more efficiently.
For the good working of these mechanisms is necessary that the distance between the center of the crank b and the crank pin a, t ermed L,to be equal to the pitch radius of the satellite c, t ermed M and equal to the pitch radius of the interior geared plate 5, termed N, diminished to one half.Therefore:
Figure imgf000007_0001
Other condition is that as the rotation axis of the main shaft 6 to pass through the geometrical center of interior geared plate 5.
When these mechanisms work to the maximum stroke (equal with 2×N) the translation axis of the crank pin a coincides with the translation axis of the pistons 1, termed X.In this position the connecting rods 2, respectively the slide 15, will have only a translation motion after axis X.
Using the worm 8 is turned with a certain angle the interior geared plate 5 what brings about the rotation with the same angle of the translation axis of the crank pin a,termed Y.The stroke of the pistons 1 is diminished after a cosine law. In this case, for the first constructive variant,the connecting rods 2, past the translation motion,will have too a swinging motion.For the second constructive variant the slide 15 will have, past the translation motion after the axis X, a translation motion after an axis which coincides with the axis of the guide g, t ermed Z, which is perpendiculry on the axis X.
If the interior geared plate 5 is turned with 90° given the situation of the maximum stroke position, in the case of the second constructive variant, it is interrupted the motion of the pistons 1, the slide 15 oscillating only after the axis Z which coincides with the symmetrical axis of the mechanism. In this position the mechanism has the function of a coupled clutch because the stroke is equal with zero while the main shaft 6 can turn on.
INDUSTRIAL APPLICABILITY
If these mechanisms are used for internal combustion engines, the specific sensors 11 transmit to the electronic unit 10 the informations about the charge of the engine, the rotation speed, the temperature of the cooling liquide,the temperature of the environment, the pression of the air in the intake manifoild, the contents of oxygen into the burned gases and about the knocking. The selector switch 12 serves for the transmission of the option of the user which can resolve a certain variant of programme memorized by the electronic unit 10, such as:
-The engine will furnich the maximum power for all the working loads.That means as the compression ratio will be regulate to the knocking limits for all the working loads.
-The engine will operate in the most economical modality. That means as the compression ratio will be regulate so as to the effective efficiency to be maximum for all the working loads.
-The engine will operate in the most reduced polutting modality . That means as the compression ratio will be regulate so as to the contents of harmful components to be at minimum in all the working loads.
If these mechanisms are used for hydrauic pumps the specific sensors 11 transmit to the electronic unit 10 the informations about the outlet pressure of the working oil, the rotation speed of the main shaft 6, the inlet pressure of the working oil, etcetera.The selector switch 12 serves for the transmisson of the option of the user which can resolve the value of the flow or the intteruption of the working of the pump while the driving motor works on (only for the second constructive variant).
The worm 8 is possible to be actuated, for simple applications, using a kinematical chain directly by the user (without electronic unit, sensors,etcetera).
These mechanisms can be used for other machines if the pistons 1 are replaced with certain specific tools.
Figure imgf000010_0001

Claims

1.An adaptiv motor mechanism which uses a crank shaft (4) beeing characterized in that this crank shaft (4) includes a crank pin (a) in solidarity with a crank (b),having circular forme but not obligatory, with a satellite (c) and with a journal (d),the satellite (c) engaging with an interior geared plate (5), considerat ed fixed for the same adjustment,the satellite (c),the crank (b) and the journal (d) having together a plnetary motion inside a main shaft (6) which is forced to turn inside a case (7) while the crank pin (a) has a linear motion, and in that the distance between the rotation axis of the crank (b) and the axis of the crank pin (a), termed L, is equal to the pitch radius of the satellite (c), termed M,and equal to the pitch radius of the interior geared plate (5), termed N, diminished to one hβlF, the relation between them beeing ,the rota
Figure imgf000011_0001
tion axis of the main shaft (6) passing through the geometrical center of the interior geared plate (5).
2.The mechanism defined in the claim 1 beeing characterized in that the crank pin (a) is connected, in a first constructive variant,with at least one piston (1) using a connectig rod (2) and a bolt (3), the piston (1) having a alternative motion of translation.
3.The mechanism defined in the claim 1 beeing characterized in that the crank pin (a) has attached on it, in a second constructive variant, a slide (15) which can oscilate inside a guide (h) included in a push rod (14) which has an alternative motion of translation on at least a guide (16), fixed in the case (7), the push rod (14) beeing solidarizated with at least one piston (1) or other working device.
4.The mechanism defined in the claim 1 beeing cha- racterized in that the interior geared plate (5) can change its radial position using a geared segment (f) which engages with a worm (8), solidarizated with a axle (g) and which can transmit a rotation motion to the interior geared plate (5).
5.The mechanism defined in the claims 1 and 4 beeing characterizated in that the axle (g) is drived, in a first constructive variant, by a step-by-step motor (9).
6.The mechanism defined in the claims 1 and 4 beeing characterizated in that the axle (g) includes, in a second constructive variant, a gear (i) engaging with a gear rack (17) which is drived by an actuator (18).
7.The mechanism defined the claims 1,2,3,4,5 and 6 beeing characterizated in that the adjustment of the step-by-step motor (9) respectively of the actuator (18) is controled by an electronic unit (10) which can decide to change the radial position of the interior geared plate (5) and therefore the stroke of the piston (1), the electronic unit (10) receiving informations from certain specific sensors (11) and from a selector switch (12), with many positions, which transmits the option of the user for a certain programme.
PCT/RO1996/000002 1995-11-02 1996-01-18 Adaptive motor mechanism WO1997016625A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP96901158A EP0874948A1 (en) 1995-11-02 1996-01-18 Adaptive motor mechanism

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RO95-01911A RO114370B1 (en) 1995-11-02 1995-11-02 Adaptive motor mechanism
RO95-01911 1995-11-02

Publications (1)

Publication Number Publication Date
WO1997016625A1 true WO1997016625A1 (en) 1997-05-09

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RO (1) RO114370B1 (en)
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002059502A1 (en) * 2000-05-08 2002-08-01 Dingcheng Xu A new transmission apparatus which achieves the transformation between the rotation and the reciprocating motion
EP1229268A1 (en) * 2001-02-02 2002-08-07 WYMBS Engineering Limited Movement output apparatus
FR2824121A1 (en) * 2001-04-27 2002-10-31 Renault Mechanism for transforming piston translation into crankshaft rotation comprises piston connected to crankpin connected via connecting rod eccentric
FR2825756A1 (en) * 2001-06-11 2002-12-13 Roger Lecal Top Dead Center adjuster for motor vehicle internal combustion engine has electric motor and gearing to alter line of crankshaft

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE800264C (en) * 1948-10-02 1950-10-25 Maschf Augsburg Nuernberg Ag Stepless control of the deflection of a back and forth movement, especially for printing machines
GB1094649A (en) * 1963-12-16 1967-12-13 Henry Eddington Roberts Improvements in or relating to machines having a reciprocating member coupled to a rotatable member
FR2034244A1 (en) * 1969-02-28 1970-12-11 Touya Gilbert
EP0063725A2 (en) * 1981-04-28 1982-11-03 HILTI Aktiengesellschaft Boring and chiseling hammer
DE3442608A1 (en) * 1983-09-09 1986-05-28 William Bernard Portland Oreg. Heniges Slider crank internal-combustion engine with adjustable stroke and compression ratio
DE3919341A1 (en) * 1988-06-20 1989-12-21 William Bernard Heniges CRANKSHAFT DEVICE
FR2680402A1 (en) * 1991-08-12 1993-02-19 Bes Jean Paul Mechanism for reversible conversion of a uniform rotational movement into a sinusoidal (simple harmonic) reciprocating rectilinear motion of variable stroke, and engine including such a mechanism

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE800264C (en) * 1948-10-02 1950-10-25 Maschf Augsburg Nuernberg Ag Stepless control of the deflection of a back and forth movement, especially for printing machines
GB1094649A (en) * 1963-12-16 1967-12-13 Henry Eddington Roberts Improvements in or relating to machines having a reciprocating member coupled to a rotatable member
FR2034244A1 (en) * 1969-02-28 1970-12-11 Touya Gilbert
EP0063725A2 (en) * 1981-04-28 1982-11-03 HILTI Aktiengesellschaft Boring and chiseling hammer
DE3442608A1 (en) * 1983-09-09 1986-05-28 William Bernard Portland Oreg. Heniges Slider crank internal-combustion engine with adjustable stroke and compression ratio
DE3919341A1 (en) * 1988-06-20 1989-12-21 William Bernard Heniges CRANKSHAFT DEVICE
FR2680402A1 (en) * 1991-08-12 1993-02-19 Bes Jean Paul Mechanism for reversible conversion of a uniform rotational movement into a sinusoidal (simple harmonic) reciprocating rectilinear motion of variable stroke, and engine including such a mechanism

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002059502A1 (en) * 2000-05-08 2002-08-01 Dingcheng Xu A new transmission apparatus which achieves the transformation between the rotation and the reciprocating motion
EP1229268A1 (en) * 2001-02-02 2002-08-07 WYMBS Engineering Limited Movement output apparatus
US7252490B2 (en) 2001-02-02 2007-08-07 Wymbs Engineering Ltd. Movement output apparatus
FR2824121A1 (en) * 2001-04-27 2002-10-31 Renault Mechanism for transforming piston translation into crankshaft rotation comprises piston connected to crankpin connected via connecting rod eccentric
FR2825756A1 (en) * 2001-06-11 2002-12-13 Roger Lecal Top Dead Center adjuster for motor vehicle internal combustion engine has electric motor and gearing to alter line of crankshaft

Also Published As

Publication number Publication date
EP0874948A1 (en) 1998-11-04
RO114370B1 (en) 1999-03-30

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