[go: up one dir, main page]

WO1993006356A1 - Moteur - Google Patents

Moteur Download PDF

Info

Publication number
WO1993006356A1
WO1993006356A1 PCT/JP1992/001201 JP9201201W WO9306356A1 WO 1993006356 A1 WO1993006356 A1 WO 1993006356A1 JP 9201201 W JP9201201 W JP 9201201W WO 9306356 A1 WO9306356 A1 WO 9306356A1
Authority
WO
WIPO (PCT)
Prior art keywords
gas
piston
engine
annular space
chamber
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.)
Ceased
Application number
PCT/JP1992/001201
Other languages
English (en)
Japanese (ja)
Inventor
Shigeru Bando
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.)
Bando Kiko Co Ltd
Original Assignee
Bando Kiko Co Ltd
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
Priority claimed from JP3276868A external-priority patent/JPH0586973A/ja
Priority claimed from JP35906891A external-priority patent/JPH05180069A/ja
Application filed by Bando Kiko Co Ltd filed Critical Bando Kiko Co Ltd
Publication of WO1993006356A1 publication Critical patent/WO1993006356A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • F02F3/00—Pistons 
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J1/00—Pistons; Trunk pistons; Plungers
    • F16J1/09—Pistons; Trunk pistons; Plungers with means for guiding fluids
    • 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
    • F02B1/00—Engines characterised by fuel-air mixture compression
    • F02B1/02—Engines characterised by fuel-air mixture compression with positive ignition
    • F02B1/04—Engines characterised by fuel-air mixture compression with positive ignition with fuel-air mixture admission into cylinder

Definitions

  • the present invention relates to a reciprocating engine.
  • a gas chamber through which gas pressure from the engine combustion chamber is guided is formed between the inner surface of the side wall of the cylinder and the side surface of the piston facing the inner surface of the cylinder by a piston ring or the like.
  • a technique has been proposed to reduce the sliding frictional resistance between the inner surface of the cylinder side wall and the side surface of the piston in the reciprocating movement of the piston by the gas pressure.
  • this technology requires only the opening and closing of the gas passage that leads the gas pressure to the gas chamber. It is difficult to open and close the gas passage at the optimal position because it is not directly controlled by the cascade of the gas position, and the gas pressure introduced into the gas chamber is not used effectively.
  • the present invention has been made in view of the above-mentioned points, and a purpose thereof is to provide a space between an inner surface of a side wall of a cylinder and a side surface of a piston facing the inner surface of the side wall from a combustion chamber.
  • a gas chamber into which the gas pressure is introduced is formed by a piston ring or the like, and the opening and closing of a gas passage for guiding the gas pressure from the engine combustion chamber to the gas chamber is controlled in relation to the piston position.
  • Another object of the present invention is to provide an engine that can effectively utilize the gas pressure introduced into the gas chamber and further reduce the sliding frictional resistance between the inner surface of the cylinder side wall and the side surface of the piston. . Disclosure of the invention
  • the object is to provide a gas chamber in which a VS bias from the thrust side to the anti-thrust side acts on the piston by a gas pressure introduced from the engine combustion chamber, and the gas chamber is provided with a pair of pistons.
  • a gas passage formed between the tongues and communicating the gas chamber with the engine combustion chamber to introduce the gas pressure of the engine combustion chamber into the gas chamber and a valve mechanism for opening and closing the gas passage Provided in This is achieved by an engine provided with a control mechanism for controlling the opening and closing operation of the valve mechanism with respect to the gas passage.
  • the control mechanism associated with the piston operates the valve mechanism.
  • the gas passage is opened by the valve mechanism, the gas pressure in the engine combustion chamber is introduced into the gas chamber via the gas passage.
  • the introduced gas pressure causes the piston to exert a biasing force from the thrust side to the anti-thrust side in the gas chamber. Due to this biasing force, the sliding frictional resistance between the inner surface of the cylinder side wall on the thrust side and the side surface of the piston is sufficiently reduced, and the piston reciprocates.
  • the introduction of the gas pressure into the gas chamber and the maintenance of the gas pressure in the gas chamber are performed in accordance with the position of the piston.
  • the object is to provide a gas chamber in which a biasing force from the thrust side to the anti-thrust side acts on the piston by the gas pressure introduced from the engine combustion chamber.
  • a gas chamber in which a biasing force from the thrust side to the anti-thrust side acts on the piston by the gas pressure introduced from the engine combustion chamber.
  • a valve seat of a valve mechanism provided in a piston and disposed in a gas passage is loosely fitted to a valve stem of the valve mechanism, and opening and closing operations of the valve mechanism in the gas passage are controlled by moving a valve stem of the valve mechanism. This is achieved by an engine provided with a control mechanism.
  • the control mechanism linked to the biston moves the valve stem of the valve mechanism.
  • the valve body is further separated from one end of the gas passage by the movement of the valve shaft during the explosion stroke, the valve seat loosely fitted to the valve shaft is supplied with gas pressure from the engine combustion chamber from one end of the gas passage in the same manner as the valve body.
  • the engine combustion chamber is substantially communicated with the gas chamber via the gas passage, and the gas pressure is introduced into the gas chamber.
  • the introduced gas pressure causes the piston to move in the gas chamber from the thrust side to the anti-thrust side.
  • the thrust force sufficiently reduces the sliding frictional resistance between the inner surface of the cylinder side wall and the side surface of the piston on the thrust side, and the piston reciprocates.
  • the valve body is further separated from one end of the gas passage by the movement of the valve stem during the intake stroke, as in the case of the explosion stroke, the valve seat loosely fitted to the valve stem will be affected by the negative pressure of the engine combustion chamber
  • one end of the gas passage is closed by the valve seat, so that the engine combustion chamber is not substantially communicated with the gas chamber via the gas passage.
  • one piston ring is inclined with respect to the other biston ring so that an annular space between the pair of piston rings is a raised annular space.
  • a defining member may be provided between the pair of piston rings to provide an annular space between the pair of piston rings on the thrust side.
  • the gas chamber may be divided into a semi-annular space on the opposite side and a semi-annular space on the opposite thrust side.
  • control device is configured such that the gas passage is opened after an explosion in the engine combustion chamber, and one preferred example of the control device consists of a projection provided on the connecting rod.
  • a hydraulic mechanism is used, and the valve of the valve mechanism may be operated by the hydraulic mechanism.
  • a gas chamber through which the gas pressure from the combustion chamber is guided is formed between the inner surface of the side wall of the cylinder and the side surface of the piston facing the inner surface of the cylinder by a screw ring or the like.
  • the opening and closing of the gas passage that guides the gas pressure from the engine combustion chamber to this gas chamber is controlled by the combi- nation of the piston position, the gas pressure introduced into the gas chamber is effectively reduced. It can be used to further reduce the sliding frictional resistance between the inner surface of the cylinder side wall and the side surface of the piston, and can improve the fuel efficiency of the engine very effectively.
  • FIG. 1 is a cross-sectional view of one preferred embodiment of the present invention.
  • FIG. 2 is a partially cutaway view of the specific example shown in FIG.
  • FIG. 3 is an operation explanatory diagram of the specific example shown in FIG. 1,
  • FIG. 4 is a cross-sectional view of another preferred embodiment of the present invention
  • FIG. 5 is a cross-sectional view taken along line V-V of the embodiment shown in FIG.
  • FIG. 6 is a cross-sectional view of still another preferred embodiment of the present invention.
  • FIG. 7 is an operation explanatory view of the embodiment shown in FIG.
  • FIG. 8 is an operation explanatory diagram of the specific example shown in FIG. Concrete example
  • piston rings 3 and 4 and oiler rings 5 are fitted above bistons 2 arranged in a cylinder 1.
  • piston ring 4 has a piston ring.
  • the distance between 3 and 4 is from the side part 8 on the anti-thrust side, which is one swing side part of the piston 2, to the side part on the thrust side, which is the other swing side part opposite to the side part 8. It is arranged on the outer peripheral surface of the piston 2 so as to become gradually longer toward the part 9, in other words, so that the distance D 2 is longer than the distance D 1.
  • the annular space 15 between the pair of piston rings 3 and 4 becomes a piston ring. Therefore, in this example, the deflected annular space 15 is formed from the thrust side by the gas pressure introduced from the engine combustion chamber in this example.
  • the gas chamber 16 is designed to act on the piston 2 with a bias force toward the anti-thrust side, that is, a bias force in the A direction.
  • the piston 2 is provided with a valve mechanism 20.
  • the valve mechanism 20 includes a cylinder 21 screwed to the piston 2, and a cylinder 2 penetrating through the cylinder 21.
  • the valve stem 22 is slidably arranged in the direction B with respect to 1, the spring stem 23 attached to the valve stem 22 and the cylinder 21 are arranged between the valve stem 22 and the tip of the valve stem 22.
  • a coil spring 26 for urging the valve rod 22 so as to seat the valve portion 24 formed on the valve seat 25 formed on the cylindrical body 21.
  • the valve mechanism 20 includes a gas passage 33 comprising a through hole 30 formed in the piston 2, a through hole 31 formed in the cylinder 21 and a hollow portion 32 of the cylinder 21. Opening and closing is performed by moving in the B direction.
  • the connecting rod 42 is connected to the piston 2 via the shaft 40 and the bush 41, and to the small end 43 of the connecting rod 42, the predetermined swing of the connecting rod 42 is performed.
  • the valve stem 22 is moved in the direction B against the elastic force of the coil spring 26 by abutting the tip of the stem 22 at an angle, and the opening and closing operation of the valve mechanism 20 with respect to the gas passage 33 is controlled.
  • System A projection 44 as a control mechanism is provided physically.
  • This movement of the valve stem 22 releases the seat of the valve portion 24 to the valve seat 25, opens the gas passage 33, and causes the gas generated by the explosion in the sintering chamber 6 with a time lag.
  • the flow is adjusted and introduced into the gas chamber 16 through the gas passage 33.
  • the piston 2 receives the lateral pressure in the gas chamber 16 in the direction A, and the sliding friction resistance against the inner wall surface 51 of the cylinder 1 facing the side surface portion 9 on the thrust side. Is lowered in a reduced state.
  • the piston 2 is moved near the bottom dead center, the contact of the projection 44 with the valve stem 22 is released, and the gas passage 33 is closed. Accordingly, the gas pressure introduced into the gas chamber 16 remains almost maintained during the subsequent rise of the piston 2.
  • the cylinder Since the piston 2 is lowered in a state where the sliding frictional resistance to the inner wall 51 of the side 1 is reduced, it is possible to extremely effectively improve the fuel efficiency of the engine and the like.
  • one piston ring 4 is inclined with respect to the other piston ring 3 —the distance between the pair of piston rings 3 and 4
  • the annular space 15 is defined as a biased annular space
  • the biased annular space 15 is defined as a gas chamber 16.
  • a pair of pistons is used as shown in FIGS. 4 and 5.
  • a defining member 61 is provided between the rings 3 and 4, and the annular space 15 between the pair of piston rings 3 and 4 is formed into a semi-annular space 62 on the thrust side and a semi-annular space on the anti-thrust side.
  • the gas chamber 64 is divided into a space 63 and a semi-annular space 62 on the thrust side is used as a gas chamber 64, and the gas chamber 64 is communicated with the engine combustion chamber 6 to reduce the gas pressure in the engine combustion chamber 6
  • An engine 70 of the present invention is formed by providing a gas passage 33 introduced into the gas passage 4 and a valve mechanism 20 for opening and closing the gas passage 33 to the piston 2. You may.
  • the engine of the present invention can be preferably applied to a four-cycle engine.
  • valve mechanism 80 of the present example provided on the piston 2 is loosely fitted to the valve stem 22 in addition to the above-described cylinder 21, the valve stem 22, and the coil spring 26.
  • the valve seat 81 is provided.
  • the valve seat 81 has an annular gap in a recess 82 formed in the piston 2. It is distributed with 8 3.
  • the protrusion 44 does not abut the valve stem 22 as shown in FIG.
  • the valve body 24 is seated on the valve seat 25, and the valve seat 25 also remains in contact with the end face of the cylinder 21 at one end of the gas passage 33. Therefore, the gas passage 33 is maintained in a closed state, the communication between the engine twisting chamber 6 and the gas chamber 16 is cut off, and the gas pressure introduced into the gas chamber 16 is maintained. .
  • the connecting rod 42 swings as the piston 2 descends as shown in FIG.
  • the projections 44 contact the valve stem 22 to move the valve stem 22.
  • the valve body 24 is also moved away from one end of the gas passage 33, and at the same time, the valve seat 25 loosely fitted to the valve stem 22 also connects the gas passage 33. Is moved away from the end face of the cylinder 21 by the gas pressure from the engine combustion chamber 6 through the engine combustion chamber 6, and one end of the gas passage 33 is opened through the annular gap 83.
  • the engine combustion chamber 6 The gas generated by the explosion in the above is introduced into the gas chamber 16 through the gas passage 33 with the flow rate adjusted with a time difference.
  • the piston 2 receives the lateral pressure generated in the gas chamber 16 in the direction A, and has a sliding frictional resistance against the inner wall surface 51 of the cylinder 1 facing the thrust side surface portion 9. It is lowered in a reduced state. Piston 2 goes further down When it is moved to the side, the contact of the projection 44 with the valve stem 22 is released, and the gas passage 33 is closed. Therefore, the pressure of the gas introduced into the gas chamber 16 remains almost the same during the subsequent rise of the piston 2.
  • the piston 2 is lowered with the sliding frictional resistance against the inner surface 51 of the side wall of the cylinder 1 being reduced.
  • valve mechanism 80 of the engine 90 may be applied to the engine shown in FIGS. 4 and 5.
  • the engine 90 of this specific example can also be preferably applied to the four-cycle type.
  • the opening and closing operations of the valve mechanisms 20 and 80 with respect to the gas passage 33 are performed by the projections 44.
  • this may be performed by a separately provided hydraulic mechanism.
  • the present invention can be applied not only to the gasoline engine of the specific example described above but also to a diesel engine.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)

Abstract

Moteur comprenant une chambre à gaz (16) dans laquelle une force de sollicitation, dirigée du côté explosion vers le côté réaction sous l'effet de la pression du gaz introduit à partir d'une chambre de combustion (6) du moteur, agit sur un piston (2). Ladite chambre est formée entre une paire de segments de piston (3 et 4). Ledit piston (2) comporte un passage (33) permettant à ladite chambre à gaz (16) et à ladite chambre de combustion (6) de communiquer l'une avec l'autre afin d'introduire dans la chambre à gaz (16) la pression du gaz à l'intérieur de ladite chambre de combustion (6) du moteur, ainsi qu'un mécanisme à soupape (20) servant à ouvrir et à fermer ce passage (33). On a également prévu un mécanisme (44) de commande de l'action d'ouverture et de fermeture de ce mécanisme à soupape (20) par rapport au passage (33).
PCT/JP1992/001201 1991-09-27 1992-09-21 Moteur Ceased WO1993006356A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP3/276868 1991-09-27
JP3276868A JPH0586973A (ja) 1991-09-27 1991-09-27 エンジン
JP35906891A JPH05180069A (ja) 1991-12-26 1991-12-26 エンジン
JP3/359068 1991-12-26

Publications (1)

Publication Number Publication Date
WO1993006356A1 true WO1993006356A1 (fr) 1993-04-01

Family

ID=26552145

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1992/001201 Ceased WO1993006356A1 (fr) 1991-09-27 1992-09-21 Moteur

Country Status (1)

Country Link
WO (1) WO1993006356A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004001215A1 (fr) * 2002-06-20 2003-12-31 Bando Kiko Co., Ltd. Moteur alternatif
RU2431070C1 (ru) * 2010-06-22 2011-10-10 Федеральное Государственное Образовательное Учреждение Высшего Профессионального Образования "Саратовский Государственный Аграрный Университет Имени Н.И. Вавилова" Маслосъемное устройство цилиндропоршневой группы
US8069833B2 (en) 2006-10-20 2011-12-06 Bando Kiko Co., Ltd. Reciprocating engine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57195843A (en) * 1981-05-27 1982-12-01 Nissan Motor Co Ltd Reciprocating type internal combustion engine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57195843A (en) * 1981-05-27 1982-12-01 Nissan Motor Co Ltd Reciprocating type internal combustion engine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004001215A1 (fr) * 2002-06-20 2003-12-31 Bando Kiko Co., Ltd. Moteur alternatif
RU2304230C2 (ru) * 2002-06-20 2007-08-10 Бандо Кико Ко., Лтд. Поршневой двигатель
US8069833B2 (en) 2006-10-20 2011-12-06 Bando Kiko Co., Ltd. Reciprocating engine
RU2431070C1 (ru) * 2010-06-22 2011-10-10 Федеральное Государственное Образовательное Учреждение Высшего Профессионального Образования "Саратовский Государственный Аграрный Университет Имени Н.И. Вавилова" Маслосъемное устройство цилиндропоршневой группы

Similar Documents

Publication Publication Date Title
US5544628A (en) Valve control arrangement for an internal combustion engine
CA1325364C (fr) Systeme pour la commande des soupapes d'un moteur a combustion interne
US4615307A (en) Hydraulic valve lifter for variable displacement engine
JPH10212909A5 (fr)
JP3331526B2 (ja) ポペット弁の駆動装置
US5636602A (en) Push-pull valve assembly for an engine cylinder
KR950703693A (ko) 2중 버킷 유압 액츄에이터(dual bucket hydraulic acturator)
US5485813A (en) Lost motion actuator with damping transition
US5451029A (en) Variable valve control arrangement
JP3103395B2 (ja) エンジン
US4977869A (en) Valve assembly for internal-combustion engines
US4483281A (en) Poppet valve spring retainer with integral hydraulic tappet
WO1993006356A1 (fr) Moteur
US4112884A (en) Valve lifter for internal combustion engine
JP2004052767A (ja) 燃料噴射弁
JP2870682B2 (ja) ダンパ付油圧式吸排気弁駆動装置
JPH05180069A (ja) エンジン
WO2017214708A1 (fr) Dispositif basé sur un bras de cale assurant le fonctionnement variable d'un dispositif
JPH0586973A (ja) エンジン
JPS6128708A (ja) 流体圧駆動式動弁制御装置
JPS6311287Y2 (fr)
KR100223542B1 (ko) 밸브기구
JP4491367B2 (ja) ダイアフラム及びラッシュアジャスタ
JPS6112087B2 (fr)
KR910018665A (ko) 2중 연료 디젤 엔진용 연료시스템

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): CA KR US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LU MC NL SE

NENP Non-entry into the national phase

Ref country code: CA