EP2009232A1 - Hybrid rotary engine - Google Patents

Hybrid rotary engine Download PDF

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Publication number
EP2009232A1
EP2009232A1 EP07730500A EP07730500A EP2009232A1 EP 2009232 A1 EP2009232 A1 EP 2009232A1 EP 07730500 A EP07730500 A EP 07730500A EP 07730500 A EP07730500 A EP 07730500A EP 2009232 A1 EP2009232 A1 EP 2009232A1
Authority
EP
European Patent Office
Prior art keywords
valve
crankshaft
engine
air
rotary engine
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Withdrawn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
EP07730500A
Other languages
German (de)
English (en)
French (fr)
Inventor
Francisco Javier Ruiz Martinez
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
Publication of EP2009232A1 publication Critical patent/EP2009232A1/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Withdrawn legal-status Critical Current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
    • F01B9/06—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
    • 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
    • F01B13/00—Reciprocating-piston machines or engines with rotating cylinders in order to obtain the reciprocating-piston motion
    • F01B13/04—Reciprocating-piston machines or engines with rotating cylinders in order to obtain the reciprocating-piston motion with more than one cylinder
    • F01B13/045—Reciprocating-piston machines or engines with rotating cylinders in order to obtain the reciprocating-piston motion with more than one cylinder with cylinder axes arranged substantially tangentially to a circle centred on main shaft axis
    • 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
    • F01B9/08—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 ratchet and pawl
    • 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
    • F02B57/00—Internal-combustion aspects of rotary engines in which the combusted gases displace one or more reciprocating pistons
    • F02B57/06—Two-stroke engines or other engines with working-piston-controlled cylinder-charge admission or exhaust
    • 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
    • F01B9/042—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 connections comprising gear transmissions
    • F01B2009/045—Planetary gearings
    • 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
    • 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
    • F02B2075/027—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle four

Definitions

  • the present specification refers to a rotary, two-stroke engine, with tangential cylinders incorporating a mechanism that enables it to work by means of compressed gas. In this way, some of or all the cylinders can work alternately as an internal combustion engine or by means of compressed gas. In addition, it includes other mechanisms that improve its performance.
  • Rotary engines with tangential pistons are heat engines with cylinders placed tangentially to the axis of rotation. They are comprised of a block with cylinders, pistons and connecting rods, as well as other elements for their control and regulation
  • the crankshaft is placed in the centre of the assemblage and the cylinders are arranging tangent to the axis of rotation.
  • the pistons transmit movement to the crankshaft by means of a lever articulated in two arms which rotate on an intermediate shaft: the outer arm is joined to the piston by means of a connecting rod and the inner arm has a slot where the crankshaft pivot slides. This arrangement causes the length of the arm's lever to vary continuously due to the rotation of the crankshaft, thus modifying the relationship between both arms.
  • the present invention proposes to introduce a mechanism that allows this type of engine to operate with compressed gas.
  • measures are proposed to improve the effort relationship between the arms of the articulated lever, and also to avoid the necessity to pull the block including all its elements during starting.
  • the invention is based on the development of the engine with tangential pistons: Patents P9200867 , CA9400571 , P200401019 and requested PCT/ES2005/070047 .
  • the inlet valve designed to operate as an internal combustion engine, in order to open and close, works by pressure differential, since it incorporates a spring in the closing direction, also it can be controlled electro-mechanically.
  • This mechanism In order to work as a hybrid motor, (internal combustion-compressed gas) a mechanism, with several elements normally operated by compressed gas, although they can also be operated and/or controlled electro-mechanically, Ins been incorporated.
  • This mechanism consists of an outer pressurized gas circuit, with a shutoff valve and a flow regulating valve, (worked by the accelerator for power control during operation with compressed gas); a rotary joint coupled to the forward rotation shaft where the gas enters the motor, and an internal circuit with a distribution valve, a valve to relieve the pressure in the cylinder's rear chamber, a valve to cut off the fuel to the engine, and a valve to allow the gas to enter and leave the expansion chamber.
  • the distribution valve is controlled by a cam operated by the crankshaft and it has two functions: to open and close the gas valve to the expansion chamber at the right moment, and to allow the residual gas to be expelled, in order to avoid any resistance during the backward movement of the piston.
  • the shutoff valve When the shutoff valve opens, the gas under pressure enters the engine by an rotary union, and it reaches the distribution valve, opens the valve which relieves the pressure in the cylinder's rear chamber, closes the fuel shut off valve, and opens the gas inlet valve to the cylinder.
  • the distribution valve controls the gas flow which acts on the piston, and this transmits the energy to the crankshaft by means of the connecting rod and the articulated lever.
  • a slot has been bored in the outer arm of the articulated lever, which modifies the union of the connecting rod with the lever.
  • This slot is orientated such that, together with a lateral guide (the arc made by the ann makes sliding easier), it determines the support point of the connecting rod pivot, and means hat the arm of the lever increases as its moves away from the cylinder (expansion) and decreases during the return stroke (compression), thus improving the performance of the engine in both configurations.
  • crankcase The union of the crankcase and the crankshaft is by means of a differential; therefore, both elements can rotate at different speeds. It is proposed to connect the crankcase with its transmission gear by means of a one-way clutch; and this means that only the crankshaft operates during starting, thereby reducing the power needed. This mechanism allows maintenance operations to be carried out without any difficulty.
  • the preferred embodiment of a hybrid rotary engine is comprised of a crankcase, which contains the cylinders (10) where the pistons are located (11) that are joined by a connecting rod (12) to the outer arm of an articulated lever with two arms (13), which rotates around the pivot (14), and pulls the crankshaft pivot with its internal arm, that slides through the slot (15) also located in the arm, thus transforming the reciprocating motion of the piston to the rotary motion of the crankshaft.
  • crankcase turns to the left and the crankshaft turns to the right, and both are joined to the exit shaft (16) by a gear train (17).
  • a slot (28) has been bored in the outer articulated lever's arm and the crankcase has a lateral guide (9), which means that the union with the connecting rod is not at one fixed point but that the shaft slides through the slot, positioned by the lateral guide, thus varying the length of the lever arm according to the position of the piston.
  • the one-way valve (7) is situated in the cylinder's rear chamber and allows the air to enter into this area through a filter (18), where there is also the depressurization valve (2); the exhaust nozzle (8) is located inside the cylinder at the end of the combustion chamber.
  • the compressed air inlet valve (4) is in the cylinder head (19), and the admission valve (6) is connected by means of a duct (20) with the cylinder's rear chamber.
  • the fuel injector (21) and a valve (22) that regulates the air flow are in this duct, at the inlet to the admission valve.
  • the distribution valve (5) is coupled to the motor's crankcase, and this controls the inlet of compressed air to the cylinder, which is operated by a cam moved by the crankshaft, as well as the fuel shutoff valve (3).
  • the rotary union (1) is coupled to the crankcase's forward shaft, at which point the pressurized gas enters, as well as the fuel feed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Hybrid Electric Vehicles (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
EP07730500A 2006-03-23 2007-03-20 Hybrid rotary engine Withdrawn EP2009232A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES200600752A ES2302608B1 (es) 2006-03-23 2006-03-23 Motor rotativo hibrido.
PCT/ES2007/070060 WO2007107617A1 (es) 2006-03-23 2007-03-20 Motor rotativo hibrido

Publications (1)

Publication Number Publication Date
EP2009232A1 true EP2009232A1 (en) 2008-12-31

Family

ID=38522069

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07730500A Withdrawn EP2009232A1 (en) 2006-03-23 2007-03-20 Hybrid rotary engine

Country Status (3)

Country Link
EP (1) EP2009232A1 (es)
ES (1) ES2302608B1 (es)
WO (1) WO2007107617A1 (es)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104769220A (zh) * 2012-07-16 2015-07-08 弗朗西斯科·哈维尔·路易斯·马丁内兹 一种旋转活塞式热力发动机

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191204068A (en) * 1912-02-17 1913-02-13 Arthur George Lloyd Neighbour An Improved Fluid Motor.
US1572541A (en) * 1924-05-01 1926-02-09 James S Lawrence Rotary engine
JPS5546075A (en) * 1978-09-29 1980-03-31 Shimooka Tadao Torque doubling device using lever
US5832885A (en) * 1994-09-21 1998-11-10 Moyer; David F. Hybrid internal combustion engine
US7050900B2 (en) * 2004-02-17 2006-05-23 Miller Kenneth C Dynamically reconfigurable internal combustion engine
JP2007534886A (ja) * 2004-04-29 2007-11-29 マルチネス フランシスコ ヤビエル ルイス 平衡型ロータリーエンジン

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007107617A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104769220A (zh) * 2012-07-16 2015-07-08 弗朗西斯科·哈维尔·路易斯·马丁内兹 一种旋转活塞式热力发动机

Also Published As

Publication number Publication date
WO2007107617A1 (es) 2007-09-27
ES2302608A1 (es) 2008-07-16
ES2302608B1 (es) 2009-05-20

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