EP2251527A1 - Driving mechanism of an engine - Google Patents

Driving mechanism of an engine Download PDF

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Publication number
EP2251527A1
EP2251527A1 EP09006510A EP09006510A EP2251527A1 EP 2251527 A1 EP2251527 A1 EP 2251527A1 EP 09006510 A EP09006510 A EP 09006510A EP 09006510 A EP09006510 A EP 09006510A EP 2251527 A1 EP2251527 A1 EP 2251527A1
Authority
EP
European Patent Office
Prior art keywords
gear wheel
rack
driving mechanism
engine
loop
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.)
Withdrawn
Application number
EP09006510A
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German (de)
French (fr)
Inventor
Willebrordus Jose Pauw
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
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to EP09006510A priority Critical patent/EP2251527A1/en
Publication of EP2251527A1 publication Critical patent/EP2251527A1/en
Withdrawn legal-status Critical Current

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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
    • F01B9/04—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
    • F01B9/06—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 the piston motion being transmitted by curved surfaces
    • 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
    • F02B75/32—Engines characterised by connections between pistons and main shafts and not specific to preceding main groups

Definitions

  • Fig.14 is a view on another embodiment of the driving mechanism a of the engine according to the invention similar to that of the Figure 13 .
  • the piston head 21 is guided in guiding consoles 26 with the stabilisation wings 27, which protrude radially from the piston head 21.
  • the piston head 21 is covered from behind by a plate 28 carrying the support block 11.

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

Abstract

Driving mechanism of an engine comprising a cylinder, piston, connecting rod (3) and a rack portion, whrein the rack portion is in the form of a closed loop (19) and the gear wheel (5) is arranged in the gap between the loop (19) from the rack (9) and the support structure (11) wherein the support structure (11) is in the constant distance from the rack loop (19) and to the gear wheel (5) a support disc (7) is adjoined for their joint rotation.

Description

    Technical background
  • The invention relates to an improved driving mechanism of an engine which can be used by combustion engine with the standard use of the cylinder, piston and connecting rod or in any other type of engine like compressed air engine, Sterling engine, etc.
    • State of the art
  • Engines comprising more cylinders are very well known. Pistons are operating up and down and pistons are connected through the connecting rod to a crankshaft. The pistons, usualy four, are operating in cycles so the crankshaft is always under stroke from one of the rods from pistons and so the crankshaft is continuously driven. Such engines are described for example in patents US 1,748,612 , US 2,046,903 , US 2,065,509 , US 2,081,749 or US 2,097,983 .
  • But there is a common problem that in a half rotation it must get the energy from the piston to the crankshaft, also the maximum torque is only at 90 degrees. This is illustrated in Fig.1 which is a scheme of a standard arrangement.
  • In JP 11159339 a construction is presented where the connecting rod of a piston is made as a both-sided linear rack which is engaging with sprockets in such a way that by the forward movement of the rack one sprocket is driven and by the back movement the sprocket on the opposite side is engaged. Both sprockets are connected to a transfer rod which drives flywheel. So in the first cycle the transfer rod is driven by one sprocket and in the second cycle the transfer rod is driven by the other sprocket.
  • The aim of the invention is to present a completely new type of the driving mechanism of an engine which would allow to transfer more energy on the crankshaft and so put more energy into the engine and so increase the output of such engine.
  • Such aim is achieved by the driving mechanism of an engine as described in its essential features in the attached main claim.
  • Other inventive aspects of the driving mechanism of an engine are described in the dependent claims
    • Brief description of the drawings
  • The invention will be described by use of drawings where
    • Fig. 1 is a scheme illustration of the known driving elements of an engine assembly according to the state of the art
    • Fig. 2 is a scheme illustration of the principle of the driving contact of the basic driving elements of an engine assembly according to the invention
    • Fig. 3 is a scheme illustration of the driving elements of an engine assembly according to the invention.
    • Fig.4 is a scheme illustration of the first embodiment of the arrangement of the driving elements of the engine assembly according to the invention
    • Fig. 5 is a scheme illustration of the second embodiment of the arrangement of the driving elements of the engine assembly according to the invention
    • Fig. 6 is a scheme illustration of the third embodiment of the arrangement of the driving elements of the engine assembly according to the invention
    • Fig. 7 is a scheme illustration of the fourth embodiment of the arrangement of the driving elements of the engine assembly according to the invention
    • Fig. 8 is a detail of the basic parts driving mechanism of an engine according to the invention
    • Fig. 9 is a more siplified detail of the basic parts of the driving mechanism of the engine from Fig. 8 according to the invention
    • Fig.10 is a cross section along the lines A-A from the Fig. 9,
    • Fig.11 is a detail of the driving mechanism from the Fig. 9 in view from above
    • Fig.12 is a detail of the wheel mechanism from the Fig.8 or 9
    • Fig.13 is a view on another embodiment of the driving mechanism according to the invention
    • Fig.14 is a view on another embodiment of the driving mechanism according to the invention
    Preferred embodiments of the invention
  • In Fig. 1 there is a scheme illustration of the known driving elements of an engine assembly. The piston 2 in the cylinder 1 pushes the connecting rod 3 which is connected to a crankshaft.
  • In Fig.2 there is a scheme illustration of the principle of the driving contact of the basic driving elements of the driving mechanism of the engine assembly according to the invention. The teeth of the gear wheel 5 on the end of the connecting rod 3 are in contact with the rack 9 but the rack 9 is in the form of a closed loop 19.
  • This loop 19 can be seen in the Fig 3, which is a scheme illustration of the driving elements of an engine assembly according to the invention. The teeth of the gear wheel 5 on the end of the connecting rod 3 are in contact with the rack 9 but the rack is in the form of a loop 19. In the center of the loop 19 there is a central inside block 11, the function of which will be discussed later.
  • In Fig.4 there is a scheme illustration of the first embodiment of the driving elements of the engine assembly according to the invention. The piston 2 in the cylinder 1 pushes the connecting rod 3 which is connected on the gear wheel 5. The gear wheel 5 leans against the stable rack 9 and they are mutually engaged by their teeth. And at the same time the support disc 7 (shown later) leans against the central inside block 11 which is positioned within the rack 9 and the external shape of the block 11 corresponds (with some reduction) with the shape of the rack 9. The gear wheel 5 makes a complete round along the teeth of the rack 9.
  • New principe is to get the energy from the piston to a linear direction with a continous maximum torque of 90 degrees. The amount of energy transferred is depending on the height of the cylinder, and thereby the lenght of the stroke of the piston, which can make more rotations possible. Therefore there is a significant difference in the usable energy at the crank/flywheel.
  • In Fig.5 there is a scheme illustration of the second embodiment of the driving elements of the engine assembly according to the invention. The piston 2 in the cylinder 1 pushes the connecting rod 3 which is connected on the gear wheel 5. The gear wheel 5 leans against the rack 9 and it is engaged by its teeth. And at the same time the support disc 7 (shown later) leans against the periferal outside block 11a which is positioned around the rack 9 and the internal shape of the block opening 11 a corresponds (with some reduction) with the shape of the rack 9. The gear wheel 5 makes again a complete round along the teeth of the rack 9.
  • In Fig.6 there is a scheme illustration of the third embodiment of the driving elements of the engine assembly according to the invention. The piston 2 in the cylinder 1 pushes the connection rod 3. Piston head 21 is swingably mounted on connection rod 3 and it is provided in the middle with a central racked opening 11c and there are teeth along this opening 11b so this opening creates the rack 9. Within this racked opening 11c moves together with the piston head 21 also the central inside block 11. A stable gear wheel 5 is provided and it is in contact with teeth of the opening. By the up and down movement of the piston head 21 all the teeth of it come into a short contact with the gear wheel 5 during one cycle of the engine. From behind the piston head 21 is covered by a plate carrying the support block 11, which will be detailed described later.
  • In Fig.7 there is a scheme illustration of the fourth embodiment of the driving elements of the engine assembly according to the invention. The piston 2 in the cylinder 1 pushes again the piston head 21 which is provided in the middle with a rack 9 moving together with the piston head 21. Central opening 11b has no teeth and serves as a leaning peripheral block 11a, which will be discussed later. A stable gear wheel 5 is provided and is in a contact with teeth of the rack 9. By the up and down movement of the piston head 21 all the teeth of it come into a short contact with the gear wheel 5 during one cycle of the engine.
  • The gear wheel 5 has a support disc 7 (shown later) and the disc leanss against the central inside block 11 or the opening 11b which is the functional face of the peripheral outside block 11a.
  • Fig.8 is a schematic view on the driving mechanism for the engine assembly according to the invention with driven wheel mechanism 18 with flywheel. The piston 2 in the cylinder 1 pushes the connecting rod 3 which is connected through a pin 4 on the gear wheels 5,6 which create an assebly with support discs. The gear wheels 5,6, lean against the racks 9,10 of the loops 19, 19a and they are engaged by their teeth and at the same time the support discs 7,8 lean against the central inside block 11 which is positioned within the racks 9,10 and the external shape of the inside block 11 corresponds (with some reduction) with the shape of the racks 9,10. Gear wheel 5,6 and discs 7,8 need not necessary to be attached together. They can be on the same shaft but not firmly joined. The advatageous embodiment is that wheel and disc are joined and rotate together.
  • In Fig.9 is another detail of the driven mechanism of the engine assembly according to the invention. It can be seen the mutual position of the racks 9,10 and the central inside block 11 and how the gear wheels 5,6 are arranged with respect to the support discs 7,8.
  • It can be seen in a more illustrative way in Fig. 10 on a schematical cross-section along the line A-A from the previous fugure. We can see that the upper gear wheel 5 is aranged below the disc 7. Advantageously the gear wheel 5 and the disc create one unit. Very similar arrangement is also by the lower gear wheel 6 and disc 8. But the difference is that the lower gear wheel 6 is above the disc 8. The teeth of gear wheels 5,6 are engaged with the teeth of the racks 9,10. The discs 7,8 assure the stability of the unit and they balance the load. It can be seen that the connecting rod 3 is arranged on the pin 4 and the pin 4 is connected to the driven wheel mechanism 18 by another transfer rod 12.
  • In Fig.11 is a detail of the driving mechanism for the engine assembly according to the invention in view from above. It can be seen the mutual position of the racks 9,10 and the central inside block 11 and how the gear wheels 5,6 are arranged with respect to the support discs 7,8.
  • On Fig.12 there is a detail of the driven wheel mechanism 18 from Fig.8 or 9. It can be seen that the transfer rod 12 is connected to the shaft 20 with a gear wheel 14. Next to the gear wheel 14 bearing 13 is arranged. The teeth of the gear wheel 14 are angaged with the teeth of the gear wheel 15 driving the flywheel 17.
  • Fig.13 is a view on another embodiment of the driving mechanism a of the engine according to the invention. In this embodiment the rack 9 is a part of the piston head 21, which creates with piston rod 3 one piece. The piston head 21 is moving up and down and simultaneously swings. The gear wheel 5, together with the disc 7, is in a stable position - only rotating. Gear wheel 5 is firmly mounted on transmission shaft 22 as well as the chain wheel 23 is firmly mounted on transmission shaft 22 and is rotating. By the movement the piston head 21 is guided in guiding consoles 26 with the stabilisation wings 27, which protrude radially from the piston head 21. The piston head 21 is covered from behind by a plate 28 carrying the support block 11. The power can be transmitted from the chain wheel 23 by chain 24 or by any other known transmitting device. It is obvious that on the shaft 22 there can be more chain wheels or flywheels.
  • Fig.14 is a view on another embodiment of the driving mechanism a of the engine according to the invention similar to that of the Figure 13. There are two cylinders 1 with piston rods 3 and piston heads 21 and they are so synchronized, that there is always a driving power issued on the transmission shaft 22 respectively on the chain wheel 23. By the movement the piston head 21 is guided in guiding consoles 26 with the stabilisation wings 27, which protrude radially from the piston head 21. There is only one stabilization wing 27 guided only in one console 26 for one piston head 21 but it is undestood that the arrangement can vary. In this figure it can be better seen that the piston head 21 is covered from behind by a plate 28 carrying the support block 11.
  • The power can be transmitted from the chain wheel 23 by chain 24 or by any other known transmitting device.
  • As it is the case by conventional e.g. combustion engines more cylinders can be synchronized and put together and connected to a motor unit and create more valves engines. The connection parts can be incorporated in the way a person skilled in the art is sure able to apply. The driving mechanism according to the invention can be used in any other engine like compressed air engine, Sterling engine etc.
    • Reference signs
    • 1 - cylinder
    • 2 - piston
    • 3 - connecting rod
    • 4 - pin
    • 5 - gear wheel
    • 6 - lower gear wheeel
    • 7 - support disc
    • 8 - lower support disc
    • 9 - rack
    • 10 - lower rack
    • 11 - central inside block
    • 11a - peripheral outside block
    • 11b - racked opening
    • 12 - transfer shaft
    • 13 - bearing
    • 14 - gear wheel
    • 15 - gear wheel
    • 16 - transfer shaft
    • 17 - flywheel
    • 18 - wheel mechanism
    • 19 - loop
    • 20 - shaft
    • 21 -piston head
    • 22 - transmission shaft
    • 23 - chain wheel
    • 24 - chain
    • 25 - supports
    • 26 - guiding consoles
    • 27 - stabilization wings
    • 28 - covering plate

Claims (6)

  1. Driving mechanism of an engine comprising a cylinder, piston, connecting rod and a rack portion, characterized in that the rack portion is in the form of a closed loop (19) and the gear wheel (5) is arranged in the gap between the loop (19) from the rack (9) and the support structure (11) wherein the support structure (11) is in the constant distance from the rack loop (19) and to the gear wheel (5) a support disc (7) is adjoined for their joint rotation.
  2. Driving mechanism according to the claim 1, characterized in that the support structure (11) is arranged within the rack loop (19), wherein both parts are firmly mounted on a frame and the gear wheel (5) is swingly mounted on the connecting rod (3).
  3. Driving mechanism according to the claim 1, characterized in that the support structure (11) is arranged around and outside of the rack loop (19), wherein both parts are firmly mounted on a frame and the gear wheel (5) is swingly mounted on the connecting rod (3).
  4. Driving mechanism according to the claim 1, characterized in that the support structure (11) is arranged within the rack loop (19) on a piston head (21), wherein both parts are swingly mounted on the connecting rod (3) and the gear wheel (5) is mounted on a transmission shaft (22).
  5. Driving mechanism according to the claim 1, characterized in that the support structure (11) is arranged around and outside of the rack loop (19) on the piston head (21), wherein both parts are swingly mounted on the connecting rod (3) and the gear wheel (5) is mounted on a transmission shaft (22).
  6. Driving mechanism according to the claim 1, characterized in that the gear wheel (5) and the support disc (7) are manufactured as one piece.
EP09006510A 2009-05-14 2009-05-14 Driving mechanism of an engine Withdrawn EP2251527A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09006510A EP2251527A1 (en) 2009-05-14 2009-05-14 Driving mechanism of an engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09006510A EP2251527A1 (en) 2009-05-14 2009-05-14 Driving mechanism of an engine

Publications (1)

Publication Number Publication Date
EP2251527A1 true EP2251527A1 (en) 2010-11-17

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EP09006510A Withdrawn EP2251527A1 (en) 2009-05-14 2009-05-14 Driving mechanism of an engine

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EP (1) EP2251527A1 (en)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1440035A (en) * 1922-03-01 1922-12-26 James F Struble Windmill gearing
US1748612A (en) 1927-10-21 1930-02-25 John E Muhlfeld Integral piston and piston rod for reciprocating engines
US2046903A (en) 1934-12-31 1936-07-07 List John Piston and connecting rod
US2065509A (en) 1934-10-23 1936-12-29 Bell William Crawford Piston and connecting rod construction
US2081749A (en) 1936-08-28 1937-05-25 Kritzler Carl Piston and rod connection
US2097983A (en) 1936-10-12 1937-11-02 Richard J Kratky Piston and rod assembly
US3945358A (en) * 1973-02-02 1976-03-23 Brain Stanley Collins Rotary internal combustion engine with cam transmission
US4395977A (en) * 1981-01-28 1983-08-02 Pahis Nikolaos S Reciprocate internal combustion engine
WO1993011342A1 (en) * 1991-12-05 1993-06-10 Advanced Technologies Machine Improved internal combustion engine
JPH11159339A (en) 1997-08-05 1999-06-15 Keiji Nawata Internal combustion engine for converting reciprocating motion of piston to rotating motion by rack and pinion mechanism

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1440035A (en) * 1922-03-01 1922-12-26 James F Struble Windmill gearing
US1748612A (en) 1927-10-21 1930-02-25 John E Muhlfeld Integral piston and piston rod for reciprocating engines
US2065509A (en) 1934-10-23 1936-12-29 Bell William Crawford Piston and connecting rod construction
US2046903A (en) 1934-12-31 1936-07-07 List John Piston and connecting rod
US2081749A (en) 1936-08-28 1937-05-25 Kritzler Carl Piston and rod connection
US2097983A (en) 1936-10-12 1937-11-02 Richard J Kratky Piston and rod assembly
US3945358A (en) * 1973-02-02 1976-03-23 Brain Stanley Collins Rotary internal combustion engine with cam transmission
US4395977A (en) * 1981-01-28 1983-08-02 Pahis Nikolaos S Reciprocate internal combustion engine
WO1993011342A1 (en) * 1991-12-05 1993-06-10 Advanced Technologies Machine Improved internal combustion engine
JPH11159339A (en) 1997-08-05 1999-06-15 Keiji Nawata Internal combustion engine for converting reciprocating motion of piston to rotating motion by rack and pinion mechanism

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