EP2241718A1 - Démarreur de moteur - Google Patents

Démarreur de moteur Download PDF

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Publication number
EP2241718A1
EP2241718A1 EP09005356A EP09005356A EP2241718A1 EP 2241718 A1 EP2241718 A1 EP 2241718A1 EP 09005356 A EP09005356 A EP 09005356A EP 09005356 A EP09005356 A EP 09005356A EP 2241718 A1 EP2241718 A1 EP 2241718A1
Authority
EP
European Patent Office
Prior art keywords
rotor
engine
housing
eccentric shaft
star
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Withdrawn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
EP09005356A
Other languages
German (de)
English (en)
Inventor
Thanh Dam Ngo
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
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
Priority to EP09005356A priority Critical patent/EP2241718A1/fr
Publication of EP2241718A1 publication Critical patent/EP2241718A1/fr
Withdrawn legal-status Critical Current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
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C1/00—Rotary-piston machines or engines
    • F01C1/08—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing
    • F01C1/10—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F01C1/104—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member one member having simultaneously a rotational movement about its own axis and an orbital movement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C17/00—Arrangements for drive of co-operating members, e.g. for rotary piston and casing
    • F01C17/02—Arrangements for drive of co-operating members, e.g. for rotary piston and casing of toothed-gearing type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/008—Driving elements, brakes, couplings, transmissions specially adapted for rotary or oscillating-piston machines or engines

Definitions

  • the intake stroke starts when both the rotor and stator are completely closed (follow the dot on the end of the rotor).
  • the eccentric shaft starts to revolve clockwise, it forces the rotor to roll counter-clockwise and the gap between rotor and stator is open (or vice-versa). This situation forms low-pressure with a vacuum-like effect inside the combustion chamber. A mixture of fuel and air is then drawn into the combustion chamber when the intake valve opens.
  • Both the intake and exhaust valves are closed by the end of the intake stroke. This means that the mixture of fuel and air is "trapped" inside the combustion chamber. As the rotor continues to roll, the gap between the rotor and the stator is closed, and the mixture is compressed.
  • a spark is provided inside the combustion chamber near the end of the compression stroke, which causes the mixture of fuel and air to explode. This explosion forces the gap between rotor and stator to open again.
  • the explosion stroke is the single source of power to manipulate the engine.
  • a Star 651 water-cool with twin rotors in FIGURE 8 is used as an example.
  • stator The large circle is cut along the path of the rotor to a six-pointed star called a stator, which is the housing for the rotor (1 & 5).
  • the stator has a built-in rotor wall on the inner part of the stator (7) which is chrome-plated on the inner faces to prevent wearing.
  • the stator is housing for three spark plugs and is divided into three complete valve train systems. ( FIGURE 3 )
  • the water-cool stator is casted by a light but strong material such as aluminum, and is thin-walled (water pocketing) for the cooling liquid such as water to run through inside using a pump.
  • the heated water then passes through a radiator (not shown) for cooling and reusing.
  • the stator is grooved on both sides, and is sealed with a pair of outer and inner gaskets (8 & 9).
  • the rotor is housed on the front side by a front rotor cover (2).
  • This part is cast-iron, which is heat-treated and hardened on side that houses the rotor.
  • This part is water pocketed for cooling.
  • This part also houses the planetary gearset ( FIGURE 11 ), the oil pump ( FIGURE 17 ), the alternator ( FIGURE 18 ), the thermostat, the water pump ( FIGURE 19 )
  • the intermediate rotor cover (4) In the middle of the front and the rear rotors is the intermediate rotor cover (4). In the top portion below the top camshaft holder is a built-in intake air tunnel that draws air from the air inlet on the left side to the right side of the engine. This part is thin-walled for cooling, and at the center of this part is a large through hole that houses the eccentric shaft. This part is heat-treated and hardened on both sides to house the front and rear rotors.
  • the rear end of the rear rotor is also housed by a rear rotor cover (6).
  • This part is also thin-walled for water cooling.
  • This part is cast-iron, and is also heat-treated and hardened on the side where it houses the rotor. In the center of the part there is a hole that houses for the planetary gearset.
  • the small circle in the shape of a five-pointed star called a rotor, which rolls inside its rotor housing (11a & 11b).
  • the rotor has built-in combustion chambers hollowed on all of its lowest faces (12).
  • the rotor is grooved on the front and the back for sealing, and each peak is also grooved for apex seals (20 & 21).
  • the rotor is the main part that creates power for the output.
  • the rotor revolves the main shaft eccentrically to convert the eccentric turning of the rotor to a circular turning on the output.
  • This output shaft is called the eccentric shaft (24), which is mounted with a planetary gearset in the central axis of the engine, which is also the center of the stator.
  • the planetary gearset ( FIGURE 10 & 11 ) is a mechanism device used to converse the eccentric motion of the rotor to the rotary motion of the eccentric shaft, meshing the rotor to revolve on its own path without touching the rotor wall, setting the alignment of the rotor and eccentric shaft, and securing the endplay of the shaft.
  • the planetary gearset comes with a ring gear (15) which is fixed to one end of the eccentric shaft using an eccentric shaft weight, (24) which rotates the sun gear (16) in the opposite direction over three neutral gears (17).
  • the neutral gears are arranged and mounted on the planetary gearset housing (14) in equal spaces.
  • the other end of the sun gear is meshed onto the rotor ring gear (13) in the front of the rotor, forcing the rotor to roll in a fixed journey inside its housing.
  • Star Engine 651 is equipped with three valve train systems ( FIGURE 12 & 13 ).
  • the camshafts are arranged in even spaces: the top camshaft (27), the left camshaft (28), and the right camshaft (29).
  • These camshafts are attached with the cam chain sprockets (30, 31, & 32) on the front ends, and are linked to the eccentric shaft chain sprocket (25), which is then driven by the eccentric shaft using a timing chain (26).
  • the chain is also linked an oil pump sprocket (33) and a chain tensioner (not shown).
  • Each camshaft has three bearing journals mounted on the camshaft holder of the front, intermediate and rear rotor covers.
  • the front camshaft journal is fitted with two semi-circular bearings.
  • the lower front bearing (35) is placed on the front rotor cover camshaft holder.
  • the upper front bearing (34) is placed on top and secured the front camshaft holder (31).
  • the pair of front bearings in the design is also used to secure the endplay of the camshaft.
  • the intermediate journal is fitted with the middle upper bearing (36), the middle lower bearing (37), and the middle camshaft holder (32).
  • the rear journal is fitted with a set of parts (33, 38, & 39) similar to the middle one.
  • the air taken in Before entering a combustions chamber, the air taken in must be free of dirt by going through an air filter (not shown). The amount of air is controlled by a throttle plate when going through the throttle body (58) to the right (58) and left (59) intake manifolds. The exhaust gasses are blown out through these exhaust manifolds (58 & 61) ( FIGURE 14 ).
  • Star Engine is covered with a top, left, and right valve covers (65, 66, & 67), which are sealed with gaskets (68, 69, & 70) ( FIGURE 15 ).
  • gaskets 68, 69, & 70
  • FIGURE 15 At the bottom of the engine is an oil pan (72) ( FIGURE 16 ).
  • the lubrication system ( FIGURE 17 ) lubricates the engine with an oil pump driven by the eccentric shaft through the timing chain.
  • the oil pump is of rotor type (77 - 89) mounted on the lower part under the planetary gearset housing of the front rotor cover. Oil is sucked through the oil screen (100) over the oil strainer (99) to the oil filter (104), which is then split by an oil branch (93). The oil then comes to the front planetary gearset, to the eccentric shaft through eccentric shaft oil passages, to the oil jet nozzles and finally to the rear planetary gearset. Oil also comes to the camshafts and their bearings through oil lines (95 & 96).
  • the electrical system comes with an alternator (109) mounted on the front rotor cover (2) and is driven the eccentric shaft (24) using a belt (106) and pulley (105).
  • the belt tension can be adjusted by a belt tensioner (111), which is mounted on a tensioner bracket (114) and an adjustable tensioner bar (113) ( FIGURE 18 ).
  • the cooling system ( FIGURE 19 ) is used to maintain a normal, operational temperature for the engine to work in.
  • the water pump is located above of the eccentric shaft and on the left front side of the front rotor cover.
  • the water pump is driven by the eccentric shaft by a belt (106).
  • the pump shaft (127) is centered inside the pump body (125) and mounted with the ball bearings (122 & 123) and sealed by a seal (124).
  • a main object of the invention is to make the most of fuel energy by minimizing the loss of power during engine operation, therefore leaving more power for the output.
  • a further object of the invention is to reduce the use of material and maintain a light weight, the engine being compact in design.
  • a still further object of the invention is to minimize the loss of power by directly transferring power from the rotor to the output shaft.
  • a still further object of the invention is to reduce the friction force between the turning parts by shortening the traveling distance of the rotor, additionally reducing power consumption.
  • a still further object of the invention is to have a slower and smoother operation, allowing more time for the fuel to burn completely and creating higher fuel efficiency.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)
EP09005356A 2009-04-15 2009-04-15 Démarreur de moteur Withdrawn EP2241718A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09005356A EP2241718A1 (fr) 2009-04-15 2009-04-15 Démarreur de moteur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09005356A EP2241718A1 (fr) 2009-04-15 2009-04-15 Démarreur de moteur

Publications (1)

Publication Number Publication Date
EP2241718A1 true EP2241718A1 (fr) 2010-10-20

Family

ID=41328977

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09005356A Withdrawn EP2241718A1 (fr) 2009-04-15 2009-04-15 Démarreur de moteur

Country Status (1)

Country Link
EP (1) EP2241718A1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE414993C (de) * 1924-01-22 1925-06-18 Bbc Brown Boveri & Cie Verbrennungskraftmaschine nach Art einer Zahnradpumpe
US3208666A (en) * 1963-01-14 1965-09-28 Beteiligungs & Patentverw Gmbh Circular piston engine
DE1551089A1 (de) * 1966-04-09 1970-01-29 Dornier System Gmbh Rotationskolbenmaschine,insbesondere Rotationskolbenbrennkraftmaschine mit einem auf einer Exzenterwelle gelagerten trochoidenfoermigem Kolbenlaeufer und einem hierzu parallelachsigen Umschliessungskoerper
GB1350728A (en) * 1972-06-15 1974-04-24 Dornier System Gmbh Trochoid-type rotary piston machine
US3888606A (en) * 1973-12-26 1975-06-10 Ford Motor Co Rotary internal combustion engine
US3913533A (en) * 1973-06-14 1975-10-21 James B Meaden Rotary internal combustion engine
DE2604816A1 (de) * 1976-02-07 1977-08-11 Traugott Horsch Verbrennungsmotor
WO1991014081A1 (fr) * 1990-03-14 1991-09-19 Scalzo Automotive Research Ltd. Mecanisme stabilisateur pour moteurs

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE414993C (de) * 1924-01-22 1925-06-18 Bbc Brown Boveri & Cie Verbrennungskraftmaschine nach Art einer Zahnradpumpe
US3208666A (en) * 1963-01-14 1965-09-28 Beteiligungs & Patentverw Gmbh Circular piston engine
DE1551089A1 (de) * 1966-04-09 1970-01-29 Dornier System Gmbh Rotationskolbenmaschine,insbesondere Rotationskolbenbrennkraftmaschine mit einem auf einer Exzenterwelle gelagerten trochoidenfoermigem Kolbenlaeufer und einem hierzu parallelachsigen Umschliessungskoerper
GB1350728A (en) * 1972-06-15 1974-04-24 Dornier System Gmbh Trochoid-type rotary piston machine
US3913533A (en) * 1973-06-14 1975-10-21 James B Meaden Rotary internal combustion engine
US3888606A (en) * 1973-12-26 1975-06-10 Ford Motor Co Rotary internal combustion engine
DE2604816A1 (de) * 1976-02-07 1977-08-11 Traugott Horsch Verbrennungsmotor
WO1991014081A1 (fr) * 1990-03-14 1991-09-19 Scalzo Automotive Research Ltd. Mecanisme stabilisateur pour moteurs

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