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WO1991010815A1 - Soupape pour moteur a quatre temps - Google Patents

Soupape pour moteur a quatre temps Download PDF

Info

Publication number
WO1991010815A1
WO1991010815A1 PCT/JP1991/000026 JP9100026W WO9110815A1 WO 1991010815 A1 WO1991010815 A1 WO 1991010815A1 JP 9100026 W JP9100026 W JP 9100026W WO 9110815 A1 WO9110815 A1 WO 9110815A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
valves
holes
exhaust
main
Prior art date
Application number
PCT/JP1991/000026
Other languages
English (en)
Japanese (ja)
Inventor
Shigeru Chishiro
Original Assignee
Shigeru Chishiro
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 Shigeru Chishiro filed Critical Shigeru Chishiro
Publication of WO1991010815A1 publication Critical patent/WO1991010815A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L7/00—Rotary or oscillatory slide valve-gear or valve arrangements
    • F01L7/06—Rotary or oscillatory slide valve-gear or valve arrangements with disc type valves
    • 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

  • This invention performs two stages of suction, compression, explosion, and exhaust by two round valves for a four-stroke engine.
  • ⁇ Suitable for high-speed and high-power engines, mainly alloys of titanium and metal And valves for engines made of iron. Background art
  • Conventional four-stroke engines rotate by precisely performing four strokes: intake, thickening, explosion, and exhaust.
  • the types of engines that perform important intake and exhaust strokes are broadly divided into OHV, OHC, and DOHC.
  • the D0HC engine used in recent cars, etc. drives two intake valves and two exhaust valves in total by using two camshafts to move up and down to perform accurate intake and exhaust. It is a vertically long valve-type engine. In this type of valve drive, the higher the speed, the more the valve and the valve spring will cause a valve jump, resulting in poor adhesion to the camshaft and inaccurate valve movement. This inaccurate valve movement limits rotation at high speeds.
  • the present invention provides an S, C valve for a four-cycle engine (hereinafter referred to as a four-cycle engine) capable of completely eliminating the swing caused by the valve jump of the valve generated in the conventional engine, increasing the rotation speed, and enabling high output. Is referred to as a valve). Disclosure of the invention
  • the valves are used in the form of connected perfect circles, two holes are formed diagonally, and the two main and sub-valves overlap and rotate.
  • the intake efficiency and exhaust efficiency are improved with extremely low resistance, and the possibility of valve jumps caused by the up and down movement of the conventional valve is eliminated.
  • the two overlapping valves are separately controlled to accurately inhale and exhaust.
  • FIG. 1 is a diagram showing a three-dimensional view of a preferred main and sub-valves according to the present invention
  • FIG. 2 is a side view showing the whole with a valve mounted on an engine for easy understanding.
  • Fig. 3 shows the valve mounted on the engine and a top view for easy understanding.
  • FIG. 4 shows a plan view of the rotary cam for controlling the auxiliary valve for easy understanding.
  • the main valve 1 which is a perfect circular disk, has a thickness of about 2 mm or more, and has two holes 2A diagonally open to serve as inlet and outlet ports.
  • the pipe 3 at the center of the circle serves as a fulcrum, and the main valve 1 can rotate in a certain direction.
  • a belt gear 14 is used as the upper gear to be driven, and the main valve is rotated by a toothed belt.
  • the secondary valve 2 has a thickness of about 2 mm or more, and is the same circular disk as the main valve. Drill holes 2a of almost the same shape in two places, and use them for the inlet and outlet.
  • the hole of ignition port 2b is drilled in other parts.
  • Shaft 3a that is ⁇ in the center of the circle
  • the upper part has an arm 4a for rotating the auxiliary valve, and the end has a joint 4b.
  • the rotating secondary valve rotates irregularly with a step difference in a certain direction.
  • the secondary valve shaft 3a enters the main valve pipe 3 and is assembled and used. Both overlapping valves have low resistance because the central shaft and pipe are supported by the bearing 3b, and the two valves can rotate freely, reducing the resistance and reducing the rotational speed. Can be speeded up.
  • materials of the main valve and sub-valve use titanium-based materials, metal-based alloy materials, and other iron materials when it is necessary to reduce the weight such as lacing.
  • Fig. 2 illustrates the operating principle with a side view of the whole, with the valve mounted on the engine and easy to understand.
  • the main valve and the sub-valve are installed on the same line as the center of the piston 10 and on the line, and further above the upper combustion chamber.
  • the valve is spaced at least 2 mm above the combustion chamber, and the combustion chamber and the valve are in contact with four holes opened in the combustion chamber.
  • the four holes of the combustion chamber, the four holes of the main valve and the sub-valve, and the four holes of the intake port and the exhaust port are opened and closed by the main and sub-valves. Inhaled air is sucked through two diagonal holes in the combustion chamber, and exhaust gas is exhausted from two diagonal holes in the combustion chamber.
  • the overall structure for opening and closing the holes in the main and sub-valves that act as valves will be described.
  • the gears 9a of the crank shaft 9 and the gear ratio of the gear 8 take the power reduced by a ratio of 1: 2, and the outer periphery of the left side of the gear 8 is reduced to half the rotation speed.
  • the belt gear 7 above the main valve is rotated one-to-one by the belt gear 7a with a toothed belt 7a.
  • a sprocket and a chain may be used. This is because sprockets and chains are suitable for racing engines, etc., and toothed belts and gears are suitable for commercial vehicles and other engines. It is.
  • the crankshaft gear 9a and the gear 8 are reduced at a gear ratio of 1: 2, and the belt gear 8a on the right side of the gear 8 that has increased to half the rotational speed is used.
  • the belt 5c with teeth is driven, and the belt gear 5b of the upper rotating cam 5 is rotated one to one.
  • the peaks and valleys of the cam surface 5a of the rotary cam drive the rod 6 to move it back and forth.
  • the rod is always pressed against the cam surface by the spring 6a and is in close contact.
  • the tip of the rod is connected by the joint 4b of the arm 4a to rotate the auxiliary valve. In this way, the main and sub-valves are reduced in half by one revolution of the crankshaft, and when the crankshaft makes two revolutions, both valves make one revolution at different speeds.
  • Fig. 3 explains the valve mounted on the engine when viewed from the top, but we would like to see it together with Fig. 1 to supplement.
  • the sub-valve below first rotates to the suction port 2c, and the main valve above it rotates afterwards. From the suction port, the suction air is gradually drawn into the cylinder through the holes 2A and 2a of the main and sub-valves. After inhalation, the holes of both valves close and the inhalation ends.
  • both valve holes remain completely closed.
  • the sub-valve rotates to the exhaust port 2d, which exhausts first, and the main valve rotates afterwards. A hole is gradually opened and exhaust is performed through the exhaust port.
  • the intake and exhaust strokes take place only when the primary and secondary valves have holes ; During compression and explosion, both holes are closed and the valve is airtight.
  • the sub-valve rotates 90 ° first, closing the valve hole completely. With the valve holes all closed, turn the main valve 90 ° to the left and rotate the secondary valve to 180 °. In front of the upper starting point, ignition Fired from mouth.
  • the secondary valve rotates to 270 ° and the main valve rotates to 180 ° until both valve holes are completely closed.
  • the exhaust stroke only the main valve rotates to 270 ° while the sub valve is stopped at 270 °, and exhaust is performed from the exhaust port 2d.
  • the suction stroke the sub-valve is rotated to 360 ° first, and the main valve to be rotated later starts suction from the suction port at about 290 ° through the hole 2A into the combustion chamber.
  • the intake port 2c has two diagonal lines
  • the exhaust port 2d has two diagonal lines.
  • the intake and exhaust are performed at a total of four locations, which is equivalent to four valves of the conventional type. Shape and overall area can be made wider than conventional valves, so high intake and exhaust efficiency and high output can be obtained.
  • the intake and exhaust from the left and right are balanced, crossing diagonally from the center of the combustion chamber.
  • the racing engine seems to be capable of an estimated 200,000 rpm because the valve only rotates.
  • Fig. 4 is a plan view of the cam surface 5a on which the circular rotary cam 5 has a diaper, which is important for controlling the rotation of the sub-valve as shown in Fig. 3, for easy understanding. I have.
  • the arm position of the sub-valve starts at rod direction B, rotating cam direction C, and starting point D as point A in Fig. 3, a indicates that the rod is pressed quickly during the suction stroke, and a 'indicates the stopped state. You.
  • b indicates that the mouth is pulled quickly in the compression stroke, and b 'indicates that the mouth is pulled slowly.
  • c indicates the explosion stroke, pushing the mouth gently.
  • d indicates the exhaust stroke and the rod is stopped. Also, return to starting point D. Such a process is repeated by rotating. or, By increasing the straightness of the rotating cam, it is possible to control the rod with a fine and smooth cam surface.
  • valve of the present invention is particularly suitable for use in high-power and high-horsepower engines as a valve used in automobiles, motorcycles, ships, and other engines.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)

Abstract

Soupape S.C. pour moteur à quatre temps, constituée de titane léger ou d'un alliage métallique et d'un matériau ferreux, et utilisée dans une combinaison de soupapes circulaires principale et auxiliaire possédant respectivement sur leurs lignes diagonales deux trous (2A et 2a) et servant de soupapes d'admission et d'échappement. Une tige est disposée dans la partie centrale des ces soupapes circulaires et porte à son extrémité supérieure un mécanisme destiné à les faire tourner, entraîné par une came rotative, une courroie etc. et mû par le vilebrequin. Les soupapes principale et auxiliaire ainsi superposées tournent et sont commandées séparement afin que puissent s'effectuer les quatre courses qui comprennent l'admission, l'explosion, la compression et l'échappement, ce qui assure une rotation à vitesse élevée et une puissance élevée.
PCT/JP1991/000026 1990-01-17 1991-01-16 Soupape pour moteur a quatre temps WO1991010815A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP633890A JPH03253709A (ja) 1990-01-17 1990-01-17 自動車用４サイクルエンジンロータリーディスクバルブ
JP2/6338 1990-01-17

Publications (1)

Publication Number Publication Date
WO1991010815A1 true WO1991010815A1 (fr) 1991-07-25

Family

ID=11635583

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1991/000026 WO1991010815A1 (fr) 1990-01-17 1991-01-16 Soupape pour moteur a quatre temps

Country Status (2)

Country Link
JP (1) JPH03253709A (fr)
WO (1) WO1991010815A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2373823A (en) * 2001-03-30 2002-10-02 Jack Trethowan Disc-type rotary valve for i.c. engines
ES2188354A1 (es) * 2001-03-06 2003-06-16 Moraleda Tomas Cazorla Sistema de apertura y cierre para la admision y el escape en motores de explosion y de combustion.
CN102434240A (zh) * 2011-09-27 2012-05-02 浙江大学 旋转式内置片状气门及其气门结构
CN106437927A (zh) * 2016-11-10 2017-02-22 安徽工程大学 一种旋转网式气门配气机构
EP3058191A4 (fr) * 2013-09-25 2017-08-02 Anisun Ecotech P Ltd. Moteur auto-refroidi
FR3071545A1 (fr) * 2017-09-27 2019-03-29 Safran Chambre de combustion a volume constant et systeme de combustion pour turbomachine associe

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5558049A (en) * 1995-06-05 1996-09-24 Dubose; G. Douglas Variable orbital aperture valve system for fluid processing machines
US5623901A (en) * 1996-08-14 1997-04-29 Hartzell; Mark E. Time twister cylinder head for use in internal combustion engines
US6029617A (en) * 1998-05-12 2000-02-29 Lambert; Steven Modular rotary discoid valve assembly for engines and other applications
KR100422642B1 (ko) * 2001-06-15 2004-03-12 현대자동차주식회사 내연기관 휴지장치
NL1034371C2 (nl) * 2007-09-11 2009-03-12 Mark Antoon Bernard Dalhoeven Verbrandingsmotor.
KR100957143B1 (ko) * 2007-11-19 2010-05-11 현대자동차주식회사 제1 밸브디스크와 제2 밸브디스크를 구비한 흡배기 장치
CN106894858A (zh) * 2017-02-24 2017-06-27 俞彬 旋转式配气机构

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6290908U (fr) * 1985-11-28 1987-06-10
JPS6436509U (fr) * 1987-08-27 1989-03-06

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58176410A (ja) * 1982-04-10 1983-10-15 Mitsubishi Heavy Ind Ltd 往復動機関の動弁装置
JPS58220911A (ja) * 1982-06-15 1983-12-22 Toyo Radiator Kk 内燃機関
JPH025706A (ja) * 1988-06-24 1990-01-10 Kenichiro Kataoka 内燃機関の回転円盤式吸・排気法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6290908U (fr) * 1985-11-28 1987-06-10
JPS6436509U (fr) * 1987-08-27 1989-03-06

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2188354A1 (es) * 2001-03-06 2003-06-16 Moraleda Tomas Cazorla Sistema de apertura y cierre para la admision y el escape en motores de explosion y de combustion.
ES2188354B1 (es) * 2001-03-06 2004-10-16 Tomas Cazorla Moraleda Sistema de apertura y cierre para la admision y el escape en motores de explosion y de combustion.
GB2373823A (en) * 2001-03-30 2002-10-02 Jack Trethowan Disc-type rotary valve for i.c. engines
GB2373823B (en) * 2001-03-30 2005-05-11 Jack Trethowan Valve for a four stroke engine
CN102434240A (zh) * 2011-09-27 2012-05-02 浙江大学 旋转式内置片状气门及其气门结构
EP3058191A4 (fr) * 2013-09-25 2017-08-02 Anisun Ecotech P Ltd. Moteur auto-refroidi
CN106437927A (zh) * 2016-11-10 2017-02-22 安徽工程大学 一种旋转网式气门配气机构
FR3071545A1 (fr) * 2017-09-27 2019-03-29 Safran Chambre de combustion a volume constant et systeme de combustion pour turbomachine associe
WO2019063908A1 (fr) * 2017-09-27 2019-04-04 Safran Chambre de combustion a volume constant et système de combustion pour turbomachine associe
CN111164288A (zh) * 2017-09-27 2020-05-15 赛峰集团 恒定体积燃烧室和相关涡轮发动机的燃烧系统
US11060732B2 (en) 2017-09-27 2021-07-13 Safran Constant volume combustion chamber with counter rotating shutter valve

Also Published As

Publication number Publication date
JPH03253709A (ja) 1991-11-12

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