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
  • F02B41/00—Engines characterised by special means for improving conversion of heat or pressure energy into mechanical power
  • F02B41/02—Engines with prolonged expansion
  • F02B41/04—Engines with prolonged expansion in main cylinders
• • 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
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
  • F02F7/00—Casings, e.g. crankcases or frames
  • F02F7/0002—Cylinder arrangements
  • F02F7/0019—Cylinders and crankshaft not in one plane (deaxation)
• • 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
  • F16H21/22—Crank gearings; Eccentric gearings with one connecting-rod and one guided slide to each crank or eccentric
  • F16H21/30—Crank gearings; Eccentric gearings with one connecting-rod and one guided slide to each crank or eccentric with members having rolling contact
• • 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
  • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
  • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
  • Y02T10/00—Road transport of goods or passengers
  • Y02T10/10—Internal combustion engine [ICE] based vehicles
  • Y02T10/12—Improving ICE efficiencies

Definitions

• This invention is related to rotary eccentric bolt engines.
• linear movement of piston is transmitted to the crank shaft via gears and as crank shaft rotates once, the double faced gear wheel rotates half cycle.
• the axes of the crank shaft and the cylinder are eccentric.
• 95% of the power is transmitted via a stepped gear wheel, whereas only 5% power is transmitted via crank shaft. That 95% power transmitted via the gear wheel rotates the crank shaft with the maximum moment arm by acting on the crank shaft bolt tangentially, therefore, the engine which is the subject matter of this invention can also be called a rotary engine with piston.
• intake valve is bigger than the exhaust valve.
• the exhaust valve is formed as large as possible so as to move out the exhaust gases. This prevents the intake valve to be manufactured even larger and thereby results in an insufficient amount of air to be sucked into the cylinder. These are the factors that decrease the thermodynamical efficiency.
• the object of this invention is to obtain an engine which transmits the power obtained by the fuel more efficiently.
• Another object of this invention is to obtain an engine in which the parts such as oil pump, injection pump, exhaust pump, intake pump are commanded in a more proper and prompt timing.
• Another object of this invention is to provide a stable engine that does not vibrate and produce noise when running.
• Yet another object of this invention is to obtain an engine easy to manufacture and of low cost.
• the engine which is the subject matter of this invention there is not any direct connection between the crank shaft and connecting rod and the movement received from the connecting rod is transmitted outside via a pinion gear and a series of gear wheels.
• the counterweight lighter and the eccentric bolt heavier by manufacturing the counterweight lighter and the eccentric bolt heavier, an imbalance on the side of the connecting rod about the bolt axis.
• the present engine provides important advantages in comparison to the prior art engines. Firstly, the projections provided on the double faced gear wheel in the engine replace the cam shaft and facilitates the opening and closing of the intake and exhaust valves, and also the running the fuel and oil pumps. Also, since the diameter of the said wheel is very large, it controls the timing of opening and closing of the valves more properly. This in return eliminates the problems of early opening and late closing and provides substantial thermodyamical benefits.
• balance is only calculated with respect to the crank shaft.
• balance is first calculated on the bolt axis and then on the whole crank shaft. This provides the evaluation of the balance on the bolt in a more efficient way.
• engine runs without vibration despite of the imbalance on the bolt.
• Figure 1 is the perspective schematic view of the engine according to this invention
• Figure 2 is the schematic cross section of the engine according to this invention
• Figures 3a-3h are the cross sectional schematic view of the engine with various crank shaft angles
• Figure 4 is the schematic view sowing the effect of the centrifugal force on the rotation of crank shaft in an embodiment of the invention
• Figures 5a-5b are the schematic cross sectional view of the engine with various crank shaft angles in another embodiment of the invention
• Figure 6 is the schematic view showing the effect of the centrifugal force on the rotation of the crank shaft in another embodiment of the invention.
• Figure 7 is the perspective view of the engine according to another embodiment of the invention.
• Figure 8 is the schematic side view of the crank shaft used in the present engine.
• Figure 9 is a perspective schematic view of another embodiment of the present engine.
• Figure 10 is the cross sectional view along the line F-F in another embodiment of the eccentric bolt.
• the engine of the present invention basically comprises at least a cylinder (2) in which the combustion takes place and a piston (1) moving back and forth within that cylinder.
• crank shaft (6) in the present engine is half the size of the crank shaft of the prior art and has right-angled Z form ( Figure 8).
• a second gear wheel (10) coaxial with the crank shaft (6) rotates together with the crank shaft (6).
• a counterweight (13) having an asymmetrical form is provided in the present engine which is coaxial with the pinion gear (4).
• the effect of the centrifugal force on the rotation of the crank shaft is negative (-) between 0-90°, positive (+) (a) between 90-270°; and negative (-) (b) between 270-360°.
• 270-360° as the engine is in compression stroke, the effects of the pressurized gases in the cylinder (FG) will create a positive moment (M G ) in relation to the bolt axis and decreases or neutralizes the negative effect (M D ) in this area. Therefore, in case the optimum values are set, due to the inertia in this area (b), no excess energy is spent during the compression stroke, on the contrary some lost energy is recovered.
• the size of the exhaust opening (now shown) is reduced.
• the speed of the exhaust gas increases and the fan placed to the outlet of the exhaust gas can be rotated with a bigger moment. Consequently, the size of the fan at the intake side may be maximized so as to obtain a turbo fan pumping more air.
• the angle between the cylinder axis (S) and the shortest line connecting the (P D ) eccentric bolt axis (X) and bolt axis (Y) is any angle except 90°, be it clockwise or anticlockwise.
• the F PK centrifugal force which lies along the PK line acts on the eccentric bolt. Since the moment of this force about the bolt axis (MD) is anticlockwise, it adversely affects the rotation of the crank shaft.
• desired number of projections (14) will be added around the double faced gear wheel (9). There are preferably four of these projections located around the gear wheel (9) at desired intervals. The location of the projections are decided upon the opening and closing timing of the pump and valve.
• Each projection (14) comprises a part (14a) ascending from the side wall of the wheel, a part (14b) running constantly parallel to the side wall of the wheel and finally a part (14c) descending towards the side wall of the wheel.
• the pump or valve to be commanded opens at ascending part (14a), it stays open during constant part (14b) and closes again at descending part (14c).
• the eccentric bolt (5) is circular; there is a housing in the form of a collar at the end of the connecting rod. The eccentric bolt is mounted into this housing so as to freely rotate and stay in contact with connecting rod
• the eccentric bolt (5) is oval in form or in the form of a rectangle with rounded edges.
• Eccentric bolt is rotatably connected to the connecting rod via a housing (5a) on it.
• the housing (5a) preferably opens to a U- formed recess which allows the end of the connecting rod to be placed into. After the connecting rod is inserted into this recess (5b), it is connected to the eccentric bolt (5) via fixing elements (not shown) which are inserted through the housing (5 a).

Landscapes

• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
• Transmission Devices (AREA)

Applications Claiming Priority (3)

Publications (1)

Family

ID=35788890

Family Applications (1)

Country Status (3)

Families Citing this family (3)

Family Cites Families (6)

• 2005
  • 2005-10-06 WO PCT/TR2005/000051 patent/WO2006038898A1/en active Application Filing
  • 2005-10-06 EP EP05818749A patent/EP1797301A1/de not_active Withdrawn
  • 2005-10-06 EA EA200700811A patent/EA010226B1/ru not_active IP Right Cessation

Non-Patent Citations (1)

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