WO2022269644A1 - Arbre hélicoïdal de sortie de moteurs à combustion interne - Google Patents

Arbre hélicoïdal de sortie de moteurs à combustion interne Download PDF

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Publication number
WO2022269644A1
WO2022269644A1 PCT/IR2022/050021 IR2022050021W WO2022269644A1 WO 2022269644 A1 WO2022269644 A1 WO 2022269644A1 IR 2022050021 W IR2022050021 W IR 2022050021W WO 2022269644 A1 WO2022269644 A1 WO 2022269644A1
Authority
WO
WIPO (PCT)
Prior art keywords
grooves
transducer
helical
connecting rod
piston
Prior art date
Application number
PCT/IR2022/050021
Other languages
English (en)
Inventor
Sajad KHOSHBAKHT
Original Assignee
Khoshbakht Sajad
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 Khoshbakht Sajad filed Critical Khoshbakht Sajad
Priority to PCT/IR2022/050021 priority Critical patent/WO2022269644A1/fr
Publication of WO2022269644A1 publication Critical patent/WO2022269644A1/fr

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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
    • 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
    • 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

Definitions

  • the helical shaft is designed to replace the crankshaft in internal combustion engines. It increases the useful power output from 180° to 360° in each complete cycle of the engine (720°) and also increases speed and torque in the engine at the same time.
  • crankshaft Today, various engines are used to power vehicles, the most common of which are piston internal combustion engines.
  • One of the lesser known disadvantages of these engines is the way the crankshaft works; in each complete engine cycle (720°), the crankshaft sends only 180° useful power output to the transmission line, i.e. it has a low efficiency of about 4/1.
  • torque and speed There is also an inverse relationship between torque and speed in the crankshaft; so that with increasing the crank length of the crankshaft, torque increases and speed decreases, and with decreasing the crank length of the crankshaft, torque decreases and speed increases. Therefore, it cannot increase speed and torque in the engine at the same time.
  • the purpose of designing the helical shaft is to replace the crankshaft with it in order to increase the useful power output from 180° to 360° in each complete engine cycle (720°) and also increase speed and torque in the engine at the same time.
  • Helical shaft (1) is designed to solve the problems mentioned in the crankshaft.
  • Helical shaft (1) in internal combustion engines receives the power generated in the cylinder (5) via the piston (3), the connecting rod (4), and the transducer (2) and sends it to the power transmission system as torque and speed, so that the force generated in the cylinder (5) is transmitted to the helical shaft (1) via the piston (3), by means of the connecting rod (4) and the transducer (2), causing the helical shaft to rotate, which in turn, generates the driving force in the engine.
  • the helical shaft (1) is a hollow cylinder with four internal helical grooves, closed at the rear (junction of the flywheel) and open at the front (junction of the transducer, connecting rod, and piston).
  • Two helical grooves (1a 1 ) and (1a 2 ), as “going” grooves, are used for moving backwards or the bottom dead center of the piston (3), the connecting rod, (4) and the transducer (2).
  • two helical grooves (1b 1 ) and (1b 2 ), as “returning grooves”, are used for moving forward or the top dead center of the piston (3), the connecting rods (4), and the transducer (2).
  • the beginning of the grooves (1a 1 ) and (1a 2 ) is connected to the end of the grooves (1b 1 ) and (1b 2 ) and the beginning of the grooves (1b 1 ) and (1b 2 ) is connected to the end of the grooves (1a 1 ) and (1a 2 ), which allow for direct reciprocating motion of the transducer (2).
  • the useful speed output can be increased from 180° to 360° in a complete engine cycle.
  • the helical shaft (1) is located at the rear of the cylinder block and is connected to it by two bearing caps (6). It rotates and transmits the force in only one direction. Due to its cylindrical shape, the helical shaft has a balance in motion; i.e., it does not produce any vibration during rotational motion; so, it does not require balance weights.
  • the helical shaft transmits its rotational force to the flywheel, by means of a gear flange (lc) at the end, to be transmitted to the power transmission system. It also transmits its rotational force via the gear, chain, or belt to rotate the other components of the engine.
  • the number of helical shafts (1) depends on the number of cylinders (5) of the engine.
  • Transducer (2) The function of the transducer (2) is to transfer and change the force and motion, so that the circular motion transfers the helical shaft (1) to the piston (3) and the connecting rod (4) to provide a direct reciprocating motion, and conversely, the direct reciprocating motion transfers the piston (3) and the connecting rod (4) to the helical shaft (1) to provide a circular motion.
  • the transducer (2) has a two-piece cylindrical structure that is mounted on each other as hermaphroditic coupling and is located inside the hole at the end of the connecting rod (4b), and its two ends (2a) are placed inside the grooves of the helical shaft.
  • the transducer has two motions, including direct and rotational; it has a direct reciprocating motion inside the inner grooves of the helical shaft
  • the connecting rod (4) has a one-piece, integrated structure, with a direct reciprocating motion. It has a small-end (4a) at the front, which is connected to the end of the piston (3) using the gudgeon pin and the circlip, and has a big-end (4b) at the rear, in which the transducer (2) is placed.
  • the structure and motion of the connecting rod make it suitable for various cross shapes such as cylindrical, rectangular, square, round, conical, etc. in the engine (As shown in Fig. 2).
  • Suction stage The piston moves from the front (TDC) to the rear (BDC) by the grooves (1a 1 ) and (1a 2 ), by means of the connecting rod and the transducer, and when the throttle valve is opened by the camshaft, a fuel-air mixture fills the space above the piston.
  • Compression stage The piston moves from the rear (BDC) to the front (TDC) by the grooves (1b 1 ) and ( 1b 2 ), by means of the connecting rod and the transducer, and when the smoke and throttle valves are closed by the spring, a fuel-air mixture is pressurized in the chamber.
  • Compressed air-fuel mixture combustion force causes the piston to move from the front (TDC) to the rear (BDC), pushes the force into the grooves (1a 1 ) and (1a 2 ) by means of the connecting rod and the transducer, and rotates the output helical shaft, so generating the driving force in the engine. At this time, the smoke and throttle valves are closed by the spring.
  • Discharge stage the piston moves from the rear (BDC) to the front (TDC) by the grooves (1b 1 ) and (1b 2 ), by means of the connecting rod and the transducer, and when the smoke valve is opened by the camshaft, the combustion smoke is directed out of the cylinder.
  • the connecting rod and the transducer reach the end of the grooves (lbf) and (1b 2 ), by rotating the helical shaft, they are placed at the beginning of the grooves (1a 1 ) and (1a 2 ).
  • Fig.1 This figure shows complete and cut views of a single-cylinder engine with a helical shaft.
  • Fig. 2 This figure shows the connection of parts, including the oval piston (3), the connecting rod (4), the transducer (2), the helical shaft (1), the gudgeon pin, the circlip, and O-ring seals.
  • Fig.3 This figure shows the helical shaft (1) from different angles and inner view.
  • Fig. 4 This figure shows the inner view of the helical shaft with two "going" grooves (1a 1 ) and (1a 2 ) and two “returning” grooves (lbf) and (1b 2 ), with rotations of 180°, 270°, and 360°.
  • Fig.5 This figure shows the transducer (2), the oval piston (3), and the connecting rod (4) in both separate and cut views.
  • Fig.6 This figure shows the operation of the helical shaft (1) during suction, compression, power, and discharge stages in a single-cylinder engine.
  • Fig.7 This figure shows a comparison of the helical shaft with the crankshaft in how the forces are applied to generate the driving force.
  • Fig.8 This figure shows the use of the oval piston in the engine (NR750) of Honda Co. Industrial Applicability
  • crankshaft is replaced with the helical shaft in four-stroke, two-stroke internal combustion engines and four-stroke, two-stroke, half-stroke diesel engines, etc. to increase the efficiency of these engines in various fields including automobiles, electric generating engines, compressors, aviation, military industries, etc.

Landscapes

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

Abstract

L'arbre hélicoïdal est conçu pour remplacer le vilebrequin dans des moteurs à combustion interne. Il augmente la puissance utile délivrée de 180° à 360° dans chaque cycle complet du moteur (720°) et augmente également la vitesse et le couple au niveau du moteur en même temps.
PCT/IR2022/050021 2021-06-26 2022-06-13 Arbre hélicoïdal de sortie de moteurs à combustion interne WO2022269644A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/IR2022/050021 WO2022269644A1 (fr) 2021-06-26 2022-06-13 Arbre hélicoïdal de sortie de moteurs à combustion interne

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IR106087 2021-06-26
PCT/IR2022/050021 WO2022269644A1 (fr) 2021-06-26 2022-06-13 Arbre hélicoïdal de sortie de moteurs à combustion interne

Publications (1)

Publication Number Publication Date
WO2022269644A1 true WO2022269644A1 (fr) 2022-12-29

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IR2022/050021 WO2022269644A1 (fr) 2021-06-26 2022-06-13 Arbre hélicoïdal de sortie de moteurs à combustion interne

Country Status (1)

Country Link
WO (1) WO2022269644A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08178010A (ja) * 1994-12-26 1996-07-12 Furukawa Hideko 運動変換装置およびレシプロエンジン
JP2015215071A (ja) * 2014-05-13 2015-12-03 株式会社俵屋 内燃機関
CN108825375A (zh) * 2018-06-13 2018-11-16 浙江大学 一种新型防敲缸发动机

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08178010A (ja) * 1994-12-26 1996-07-12 Furukawa Hideko 運動変換装置およびレシプロエンジン
JP2015215071A (ja) * 2014-05-13 2015-12-03 株式会社俵屋 内燃機関
CN108825375A (zh) * 2018-06-13 2018-11-16 浙江大学 一种新型防敲缸发动机

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