TWI222488B

TWI222488B - Valve system of internal combustion engine

Info

Publication number: TWI222488B
Application number: TW092133527A
Authority: TW
Inventors: Toshihiko Oka; Shuji Nagano; Masanori Tokuhisa
Original assignee: Mitsubishi Motors Corp; Mitsubishi Motor Eng
Priority date: 2002-12-17
Filing date: 2003-11-28
Publication date: 2004-10-21
Also published as: CN1282821C; CN1508399A; TW200413631A

Abstract

There is provided a valve system for an internal combustion engine, in which a rocker shaft required to have a higher stiffness has a larger diameter. A rocker shaft on an intake side is formed to have a (e.g. about 10%) larger diameter than that of a rocker shaft on an exhaust side, and therefore, it is possible to ensure such stiffness as to compensate for an excess in weight and to improve valve operating characteristics of a valve system.

Description

12224881222488

内發明所屬之技術領域本發明係有關於一燃機的吸氣閥及排氣先前技術】，二以不同的驅動定時（tiining)將閥開關驅動的内燃機的閥動機構。目前被實用化所開發出負荷狀態及速度狀態，可以式内燃機（引擎）所具備的吸特性，亦即，開關定時及開在此種的閥動機構中，一，例如，開發配合引擎的備適合於引擎在低速迴轉時具備適合於引擎在高速迴轉而使機械閥開關啟動的物件〇 7 - 2 3 5 2 6號公報中，係記載換為具備切換壓油的供給排特開20 0 0-737 1 6號公報中，相、而具備將在變更機械閥出切換的機構的構成。又，態下，將在停止機械閥的啟的供給排出的機構的構成， 5 8 - 1 8 3 9 1 〇號公報。在曰本特開200 0-737 1 6 號公報中，作為切換壓油的油幫浦將被壓送的壓油供給最佳的方氣閥及排放期間。作為切換迴轉狀態的凸輪輪時的凸輪 °例如5 低速用凸出的機構係記載藉的開關定具備切換動的所謂係被記載號公報及供給排出至油控制構’其係配合引擎的式切換近年來在往復氣閥（機械閥）的啟動啟動特、可選廓的低輪廓的在曰本輪及高的構成由變化時中的在既定的休筒在曰本性的機擇性的速用凸兩速用實公平速用凸，又，凸輪轴壓油的引擎的引擎中實開昭構之使用具輪、及凸輪、輪的切在曰本的位供給排運轉狀的壓油曰本實公平07-23526 的機構，在自單一的閥的油通路内，安裝The present invention relates to the technical field of an intake valve and an exhaust valve of a gas turbine. The present invention relates to a valve operating mechanism of an internal combustion engine that drives a valve switch at different driving timings. At present, the load state and speed state have been developed for practical use, and the suction characteristics of the internal combustion engine (engine), that is, the switching timing and opening in such a valve mechanism, one, for example, the development of equipment to match the engine It is suitable for the engine to rotate at a low speed, and it is suitable for the engine to switch at a high speed to activate the mechanical valve switch. 0-7-2 3 5 2 6 describes the replacement of the supply line with switching oil pressure JP 20 0 0 In -737 1 No. 6, the structure is provided with a mechanism for switching the valve output when the machine is changed. In addition, in the state, the structure of a mechanism that discharges and stops the supply and discharge of the mechanical valve is disclosed in Japanese Unexamined Patent Publication No. 5 8-8 3 9 10. In Japanese Patent Application Laid-Open No. 200-737 16, the oil pump, which is used to switch the oil pressure, supplies the pressure oil to be fed to the optimum valve and discharge period. The cam is used to switch the cam wheel in the turning state. For example, a low-speed protruding mechanism is described in the so-called “Gazette” and the supply and discharge to the oil control mechanism. In recent years, when the reciprocating air valve (mechanical valve) is activated, the low-profile, high-profile wheel and the high-profile structure are changed from the time of change to the predetermined mechanism. Convex, two-speed, real-speed, convex, and camshaft-pressurized engine. The engine is equipped with wheels, cams, and wheels. It is used to supply the hydraulic oil to the engine. The real 07-23526 mechanism is installed in the oil passage from a single valve

1222488 五、發明說明（2) 複數的濾油器，防止咬入垃圾至載。又，在日本實開昭58-1 8391 0號^閥的技/好係被記排出的機構係具備複數的油幫• 為切換塵油油幫浦的上流側安裝濾油器，防止二由在:机侧構的活塞的技術係被記载。，、，物至閥停止機在近年的可變動閥裝置中，為了減低成的油幫浦，來進行引擎各邱- 使用早〜佳，秋而获* - μ擎f ^的1滑油控制閥的控制為較 ^ :、、、而错由早一的油幫浦做油控制閥的控制閥的啟動時，隨荖壓、、Λ 才在油控彻^ : s 供、給，通路内的壓力恐會降 ;:因f:在通路具備蓄壓裝置，在油控制閥的啟；：，將來自蓄壓裝置的壓油供給、蓄壓裝置的通路係有必要順瘅壓、二：:、、'、而在具備此種置所蓄壓的μ油供Li:;，而將自蓄麼裝 ^.^於通路内，而且由於不是如油控制閥 =。"，以谷易因不純物等的咬入而發生啟動不 f記載於日本實開昭58_1 839 1 〇的技術中，係由於在 =裝置：上流侧安裂增壓油幫浦，且安裝滤油器在增壓 /曰的上肌側，所以隨著油幫浦的滑動而發生的不純物係不疋被除去而是被導向蓄壓裝置，蓄壓裝置恐會咬入不純物。而且:在日本實開昭58_ 1 839 1 0中，係具有複數油幫 1’所以導=成士擴大’又直接在增壓幫浦下流安裝蓄壓衣置/所以：，入蓄壓裂置内的不純物會藉由凸•，常常會直接受到隨著被驅動的增壓幫浦的啟動的壓油脈動的影響，不純物係在蓄壓襄置内藉由被授拌，恐怕更會產生被第6頁 7042-6017-PF(Nl).ptd 1222488 - _ 五、發明說明（3) _ 蓄壓裝置咬入。又，在々费μ 及曰太每八τ ΛΓ? °己栽於日本特開2000-737 1 6號公報及日本貫公平〇 7 —2352 6 张壓穿詈，力^她士 b Α報的技術中，係由於不具備蓄 i表罝在切換時，通路內的默A y么# 供給不足。塔内的壓力係降低，恐會產生壓油【發明内容】〔發明所欲解決的課題〕蓄壓裝置係，例如，翻L於Α 壓力將壓油蓄壓，以_由彳Ιί二偏壓的活塞的偏由活夷精由和油路的壓力差，而成為放出藉 jf % ^ , η ^ ^ 此，在畜壓裝置存在活塞的 /月動4，異物一混入壓油時，產 · 曰] 題。在先前的Μ #德娃屋生了延緩（Staying)問濾油器及為了防止油_制p1 &從^堅油源吐出的壓油的櫨運鑪灿：制閥延緩的濾油器，然、而也有依 i t ::將渡油器旁通以供給壓油，在併設蓄壓裝置滑引擎，且在控制可變間控制機構中寺別= =潤 =:綾時，就沒辦法啟動可變閥控制機構：：二壓油跳位的不可預期的間定時的切換及切產=於致引擎輪出功率降低、燃料費惡化、、掸义：击曰導的惡化。木θ心大、汽車性能 ^發明係有鑑於上述狀況所做的發明，以提供機的閥動機構為目的。防止異物的混入的内燃〔用以解決課題的手段〕為了達成上述目的之有關申請專利範圍第!項的内燃第7頁 7042-6017-PF(Nl).ptd 12224881222488 V. Description of the invention (2) Multiple oil filters to prevent bite from getting into the load. In addition, in Japan, Shokai 58-1 8391 No. 0 ^ valve, the mechanism of which is recorded is equipped with multiple oil gangs. • Install oil filters to switch the upstream side of the dust and oil pumps to prevent two-way In: The technical system of the piston of the side structure is documented. In recent years, variable valve devices have been used to reduce the amount of oil pumps used in the engine.-Use early ~ good, autumn and get *-1 engine oil control of μ engine f ^ The control of the valve is more ^: ,,, and wrong. When the control valve of the oil control valve is started by the earlier oil pump, the oil control is performed completely with the pressure, Λ: s. The pressure may drop ;: because f: the pressure accumulating device is provided in the passage, and the oil control valve is opened; the pressure oil supply from the pressure accumulating device is required, and the passage of the pressure accumulating device must be pressurized. : ,, ', and in the μ oil with such a stored pressure for Li:;, and the self-storage is installed in the passage ^. ^, And because it is not as oil control valve =. " The technology that Gu Yi started due to the infiltration of impurities and the like is described in Japanese Shikai Sho 58_1 839 1 〇, because the device is installed on the upstream side of the pressurized oil pump, and a filter is installed. The oil accumulator is on the upper muscle side of the booster, so the impurities that occur with the sliding of the oil pump are not removed but directed to the pressure storage device, which may bite the impurities. Moreover: In Japan Shikai Sho 58_ 1 839 1 0, the system has a plurality of oil gangs 1 ', so the guide = Chengshi enlargement', and the pressure storage device is installed directly downstream of the booster pump / so: Impurities in the interior will be directly affected by the pressure pulsation of the oil along with the activation of the driven booster pump. Impurities are mixed in the accumulator, and I am afraid they will be affected. Page 6 7042-6017-PF (Nl) .ptd 1222488-_ 5. Description of the invention (3) _ Pressure storage device bites. In addition, in the cost of μ and the number of ta τ ΛΓ? ° has been planted in Japanese Patent Laid-Open No. 2000-737 1 6 and Japanese uniform fair 〇 07-235 2 6 pieces of pressure through the pressure, force ^ Shishi b Α reported In the technology, because there is no storage table, when the switch is made, the default supply in the channel is insufficient. The pressure system in the tower is lowered, which may cause oil pressure. [Summary of the Invention] [Problems to be Solved by the Invention] The pressure storage device system, for example, turns L to Α pressure to store the pressure oil, and _ by 彳 Ιί two bias The piston ’s bias is caused by the pressure difference of the oil circuit and the pressure difference in the oil circuit, so it becomes a loan jf% ^, η ^ ^ Therefore, when there is a piston movement per month in the animal pressure device 4, when foreign matter is mixed into the oil pressure, Said] question. In the previous M # 德娃屋, a staying oil filter was installed and in order to prevent the oil from making p1 & pressure oil from the ^ Jian oil source, the transport furnace Chan: the valve delay oil filter, Of course, there is also it: Bypassing the fuel tank to supply pressure oil, when a pressure accumulator slip engine is installed, and in the control of the variable room control mechanism, Terabe == run =: 绫, there is no way to start Variable valve control mechanism: Unpredictable timed switching and production cut-off of the second pressure oil jump position = resulting in a reduction in engine wheel output, deterioration of fuel costs, and meaning: deterioration of the steering. The wood θ has a large heart and automobile performance. ^ The invention is an invention made in view of the above situation, and aims at providing a valve-actuating mechanism of the machine. Internal combustion to prevent foreign matter from being mixed in [Methods to solve the problem] Internal combustion related to the scope of patent application of item No.! To achieve the above purpose Page 7 7042-6017-PF (Nl) .ptd 1222488

閥）及機的閥動機構係包括··搖臂軸；第1搖臂，其前端係被連結於第1吸氣閥或是第1排氣閥，以可自由搖動的方式被支持在上述搖臂轴’措由第1低提升（lift)凸輪所驅動；第3 搖臂’其前端係被連結於上述第2吸氣閥或是第2排氣閥，以可自由搖動的方式被支持在上述搖臂軸，藉由較上述第 1低提升凸輪的提升量為小的第2低提升凸輪所驅動；第2 搖臂，其前端係可連結於上述第1及第3搖臂側，以可自由搖動的方式被支持於上述搖臂軸，藉由較上述第i低提升凸輪的提升量為大的高提升凸輪所驅動；可變閥控制機構，藉由自油壓源通過第丨過濾器的壓油係透過油通路被供給排出，以對應於控制上述第丨及第2吸氣閥或是上述 1及第2排氣閥的開關狀況的上述第丨搖臂及第3搖劈，切換 ¥壓裝置，其被設構的上流側，蓄壓被以及第2過濾器，其的上流側，且在上述結切換機構的閥動 ^過濾器被過濾，的閥動機構係在申動機構中，上述蓄五、發明說明（5) __ ::申：f f置的交換、保養等係較容易被進> 請專利範圍第2項所―己恭第j項的内燃機的閥動機構係在申塵源係為被配置在汽虹上内燃機的閥動機構中，上述油因此，可減低因單一的油幫浦。置。 /由幫浦的壓油的脈動被傳達至蓄壓裝請專過遽器係被配置於/述载第動機構中，上述第2 油通路的長度較上2 ^ “态和上述蓄壓裝置的上述路的長度油幫浦和上述第2過渡器的上述油通蓄壓ΐΐ 1更有效果的防止在料内所發生的異物混入【實施方式】 ^. I ^ # - ^ ^ ^ ^ a #Valve) and the valve actuating mechanism of the machine includes a rocker arm shaft; the first rocker arm is connected at its front end to the first suction valve or the first exhaust valve, and is supported in a swingable manner as described above. The rocker shaft 'is driven by the first low lift cam; the front end of the third rocker's arm is connected to the second suction valve or the second exhaust valve, and is supported to swing freely. The rocker arm shaft is driven by a second low lift cam having a smaller lifting amount than the first low lift cam; the front end of the second rocker arm can be connected to the first and third rocker arms, Supported by the above-mentioned rocker shaft in a freely swinging manner, driven by a high-lift cam having a larger lifting amount than the i-th low-lift cam; a variable valve control mechanism, which passes the The pressurized oil of the filter is supplied and discharged through the oil passage so as to correspond to the first and second rocker arms and the third rocker that control the opening and closing conditions of the first and second suction valves and the first and second exhaust valves. , Switch the pressure device, which is configured on the upstream side, the pressure storage quilt, and the second filter, which is on the upstream side, The valve action filter of the junction switching mechanism is filtered, and the valve action mechanism is in the application mechanism. The above-mentioned fifth, description of the invention (5) __ :: application: exchange, maintenance and so on are more easily Progress > Please refer to the second scope of the patent scope-the valve actuation mechanism of the internal combustion engine of item j is in the valve actuation mechanism of the internal combustion engine which is arranged on the steam rainbow. The above oil can reduce the Oil pump. Home. / The pulsation of the hydraulic oil from the pump is transmitted to the pressure storage device. The special drive system is arranged in the load moving mechanism. The length of the second oil passage is longer than 2 ^ "state and the pressure storage device." The length of the above-mentioned path of the oil pump and the above-mentioned oil passage accumulation pressure of the second transition device 1 is more effective to prevent the incorporation of foreign materials in the material. [Embodiment] ^. I ^ #-^ ^ ^ a #

狀況，第3圖係Λ \第圖係第1圖中的主要部分擴大從第2圖中的/第 '中的皿-m線的箭頭所看’第4圖係 -V線的箭頭Γ/線的前頭所看’第5圖係從第2圖中的V 斜視，第q m搖#的斜視，弟8圖係自吸氣閥侧的搖臂的第! 〇圖Γ表Λ表示油壓上統的内燃機的主要部分斜視，統的概略電：：=器的女裝狀況的斷面’第11圖係油壓系如第1圖所*，在汽缸蓋1，吸氣侧的搖f軸2和排氣The main part of Fig. 3 is Λ \ Fig. 1 in Fig. 1. The main part of Fig. 1 is enlarged. It is seen from the arrow of the plate-m in / in the second figure. Seen from the front of the line, Fig. 5 is a squint from V in Fig. 2 and a squint of qm ##, and Fig. 8 is the first from the rocker on the side of the suction valve. The main part of the internal combustion engine of the system is squinted, and the outline of the system is shown in the section of the condition of the women's clothing. Figure 11 shows the oil pressure system as shown in Figure 1 *. On the cylinder head 1, the intake side swings the f-axis. 2 and exhaust

7042-6017-PF(Nl).ptd 第9頁7042-6017-PF (Nl) .ptd Page 9

Γ/臂被軸:亍：定。凸輪軸4係以可自由迴轉的方燃機氣？，2: ^ 氣閥及排氣閥。〃冓成為於—個氣筒分別設置2個吸 3搖臂“系久/Λ所*，對應於各氣筒，第1搖臂5及第狀的第2搖臂7 2可自由搖動的方式被支持在搖臂軸2，τ字 LI丄自由搖動的方式被支持在第1搖臂5及 Λ ί間的搖臂轴2。作為連結切換機構的汽缸部8係被形成在们搖臂5及第3搖臂6。第2搖臂7的丁字狀的前端 7a、7b係可連結於汽缸部8。 …=1搖臂5的前端係連接於第j吸氣閥9，第j搖臂5的基端係藉由第1低提升凸輪10所驅動。第3搖臂6的前端係連接於第2吸氣閥11，第3搖臂6的基端係藉由較第丨低提升凸輪的提升量為小的第2低提升凸輪丨2所驅動。亦即，第i 吸氣閥9及第2吸氣閥11係各自以既定的定時、不同的提升置而被開關。又’實際上，第2低提升凸輪丨2亦可選擇將吸氣閥11作為停止狀態的形狀。如第3圖、第4圖及第7圖、第8圖所示，在第1搖臂5及第3搖臂6係各自形成汽缸部8，在各自的汽缸部8係形成相對向於第2搖臂7的T字狀的前端7a、7b的開口部1 3a、 13b。在汽缸部8係包括可自由滑動的活塞14a、14b，活塞 1 4 a、1 4 b係除了包括滑接於汽缸部8的内壁的圓柱部1 5 a、 1 5b ’同時在連接於圓柱部1 5a、1 5b的上部形成將開口部 1 3 a、1 3 b 側切口的切口部 1 6 a、1 6 b。Γ / arm arm axis: 定: fixed. Is the camshaft 4 turning freely? , 2: ^ Air valve and exhaust valve. 〃冓 Because each pump is equipped with two suction and three rocker arms, "Sujiu / Λ Suo *", corresponding to each pump, the first rocker arm 5 and the second rocker arm 7 2 are supported in a freely swinging manner. On the rocker shaft 2, the τ-shaped LI 丄 is freely rocked by a rocker shaft 2 supported between the first rocker 5 and Λ ί. A cylinder portion 8 as a connection switching mechanism is formed on the rocker 5 and the first 3 rocker arm 6. The T-shaped front end 7a, 7b of the second rocker arm 7 can be connected to the cylinder portion 8.… = 1 The front end of the rocker arm 5 is connected to the j-th intake valve 9 and the j-th rocker 5 The base end is driven by the first low lift cam 10. The front end of the third rocker arm 6 is connected to the second suction valve 11, and the base end of the third rocker arm 6 is lifted by the lower lift cam. The second low lift cam 2 is driven by a small amount. That is, the i-th intake valve 9 and the second intake valve 11 are each opened and closed at a predetermined timing and different lift positions. In fact, The second low-lift cam 丨 2 can also select the shape in which the suction valve 11 is in a stopped state. As shown in Figs. 3, 4 and 7 and 8, the first rocker arm 5 and the third rocker The arms 6 each form a cylinder portion 8, Each of the cylinder sections 8 is formed with openings 13a and 13b opposite to the T-shaped front ends 7a and 7b of the second rocker arm 7. The cylinder section 8 includes freely slidable pistons 14a and 14b, and a piston 1 4 a, 1 4 b are in addition to the cylindrical portions 1 5 a and 1 5 b which are slidably connected to the inner wall of the cylinder portion 8. At the same time, openings 1 3 a and 1 3 b are formed on the upper portions connected to the cylindrical portions 15 a and 15 b. The incisions of the side incisions are 16a, 16b.

7042-6017-PF(Nl).ptd 第10頁 1222488 五、發明說明（7) 活塞14a、14b係藉由回位彈簧na、i7b被偏壓於下方’切口部1 6 a、1 6 b係變成常面向開口部1 3 a、1 3 b的狀態 (第4圖的狀態）。在搖臂軸2的軸心部形成油路1 8，在油路 1 8係藉由後述的油壓供給機構以既定的定時被供給壓油。在油路1 8所被供給的壓油係自通路丨9被供給於汽缸部8，由於在汽缸部8供給壓油，活塞1 4 a、1 4 b係對抗於回位彈簀1 7a、1 7b的偏壓力而上升。藉由因供給壓油的活塞 14a、14b的上升，圓柱部i5a、15b係成為面向在開口部 13a、13b的狀態（第3圖的狀態）。如第1圖至第5圖所示，第2搖臂7的T字狀的前端7a、 7b係被連接於開口部1 3a、1 3b的内部，第2搖臂7的基端係藉由高提升凸輪20被驅動。高提升凸輪2〇係較第1低提升凸輪10及苐2低提升凸輪12的提升量為大，其具有包含第1 低提升凸輪10及第2低提升凸輪12的凸輪輪廓。藉由回位彈簧17a、17b，活塞14a、14b係被偏壓於下方，在切口部1 6 a、1 6 b係面向開口部1 3 a、1 3 b的狀態（未供給壓油的狀態），第2搖臂7係藉由高提升凸輪2 0被驅動日守’弟2搖臂7的T字狀的前端7 a、7 b係相對向於開口部 13a、13b内的切口部16a、16b。因此，第2搖臂7係藉由高提升凸輪20所驅動搖動時，第2搖臂7的前端7a、7b係進入切口部1 6a、1 6b (分離的狀態），第2搖臂7的搖動係不能被傳達至第1搖臂5及第3搖臂6。而且，藉由開放汽缸部8的壓油，第1吸氣閥9及第2吸氣閥11係藉由第1搖臂5及第3搖臂6的搖動，各自以既定的7042-6017-PF (Nl) .ptd Page 10 1222488 V. Description of the invention (7) The pistons 14a and 14b are biased to the lower 'notch portions 1 6 a and 1 6 b by return springs na and i7b. The state is always facing the openings 1 3 a, 1 3 b (the state in FIG. 4). An oil passage 18 is formed in the shaft center portion of the rocker shaft 2. The oil passage 18 is supplied with hydraulic pressure at a predetermined timing by a hydraulic pressure supply mechanism described later. The hydraulic oil supplied in the oil passage 18 is supplied from the passage 9 to the cylinder portion 8. Since the hydraulic oil is supplied to the cylinder portion 8, the pistons 1 4a and 1 4b are opposed to the return spring 17a, 17b. As the pistons 14a and 14b supplying the hydraulic oil are raised, the cylindrical portions i5a and 15b are in a state facing the openings 13a and 13b (the state in FIG. 3). As shown in FIGS. 1 to 5, the T-shaped front ends 7 a and 7 b of the second rocker arm 7 are connected to the inside of the openings 13 a and 13 b, and the base end of the second rocker arm 7 is connected by The high lift cam 20 is driven. The high lift cam 20 has a larger lifting amount than the first low lift cam 10 and the second low lift cam 12, and has a cam profile including the first low lift cam 10 and the second low lift cam 12. With the return springs 17a and 17b, the pistons 14a and 14b are biased downward, and the notches 16a and 16b face the openings 1a and 13b (the state where no hydraulic oil is supplied). ), The second rocker arm 7 is driven by the high-lift cam 20, and the T-shaped front end 7a, 7b of the younger brother 2 rocker arm 7 is opposed to the cutouts 16a in the openings 13a, 13b. , 16b. Therefore, when the second rocker arm 7 is rocked by the high-lift cam 20, the front ends 7a and 7b of the second rocker arm 7 enter the cutout portions 16a and 16b (the separated state). The rocking system cannot be transmitted to the first rocker arm 5 and the third rocker arm 6. In addition, the first intake valve 9 and the second intake valve 11 are moved by the swing of the first rocker arm 5 and the third rocker arm 6 by opening the hydraulic pressure of the cylinder portion 8, and each of them is set at a predetermined value.

7042-6017-PF(Nl).ptd 第11頁 1222488 五、發明說明（8) " ' --— 定時、以相異的提升量而被開關。 …在汽缸部8供給壓油後，對抗於回位彈簧丨7a、1几的偏壓力，活塞14a、14b係上升，圓柱部i5a、15b係成為面向在開口部13a、13b的狀態時，第2搖臂7的了字狀的前端 7a、7b係相對向於開口部13a、13b内的圓柱部15a、15b。因此’第2搖臂7係藉由高提升凸輪2 〇被驅動搖動時，第2 j臂7&的T字狀的前端7a、7b係接觸於圓柱部i5a、i5b(連結狀怨）’第2搖臂7的搖動係透過汽缸部8而被傳達至箆1 搖臂5及第3搖臂6。 m 而且，藉由在汽缸部8供給壓油，第1吸氣閥9及第2吸軋閥11係藉由因第2搖臂7的搖動的第1搖臂5及第3搖臂6的搖動、配合高提升凸輪20的凸輪輪廓、以大的提升量被時關閉。爲對於汽缸部8的壓油的供給及供給開放，亦即，第2搖臂7和/第1搖臂5及第3搖臂6的連接狀態和分離狀態的切換，係配合車輛的運轉狀態（内燃機的迴轉速度狀態）而被預先設定。7042-6017-PF (Nl) .ptd Page 11 1222488 V. Description of the invention (8) " '--- It is switched on and off at different timings. … After the cylinder section 8 is supplied with hydraulic oil, the pistons 14a and 14b are raised against the biasing forces of the return springs 7a and 1b, and the cylindrical sections i5a and 15b face the openings 13a and 13b. The letter-shaped front ends 7a and 7b of the two rocker arms 7 face the cylindrical portions 15a and 15b in the openings 13a and 13b. Therefore, when the second rocker arm 7 is driven and shaken by the high-lift cam 200, the T-shaped front ends 7a and 7b of the second j arm 7 & are in contact with the cylindrical portions i5a and i5b (connection-like grudge). The rocking system of the 2 rocker arm 7 is transmitted to the 箆 1 rocker arm 5 and the third rocker arm 6 through the cylinder portion 8. m By supplying hydraulic oil to the cylinder portion 8, the first suction valve 9 and the second suction rolling valve 11 are driven by the first rocker arm 5 and the third rocker arm 6 caused by the rocking motion of the second rocker arm 7. It is closed when it is shaken in accordance with the cam profile of the high lift cam 20 with a large lift amount. It is open for the supply and supply of the hydraulic oil of the cylinder section 8, that is, the switching of the connection state and the disconnection state of the second rocker arm 7 and / or the first rocker arm 5 and the third rocker arm 6 is in accordance with the vehicle operation state (Rotation speed state of the internal combustion engine) is set in advance.

…例如，内燃機的迴轉速度在低速時，開放壓油供給至汽缸部/，以藉由第1搖臂5及第3搖臂6的搖動，使第丨吸氣閥9及弟2及氡閥11以各自既定的定時、以相異的提升量^ 關。因此’渦流（scr〇l丨）係被促進而強化燃燒。又，内燃機的迴轉速度在高速時，供給壓油至汽缸部8，以藉由因…、搖臂L的搖動的第i搖臂5及第3搖臂6的搖動，使9第1吸氣閥9及第2吸氣閥11以大的提升量同時的開關。因此，確… For example, when the rotation speed of the internal combustion engine is low, the hydraulic pressure is released to the cylinder section /, so that the first and second intake valves 9 and 6 and the second and third valves are moved by the swing of the first and second rocker arms 5 and 6. 11 Off at different established timings, with different lift amounts ^. Therefore, the 'scrroll' system is promoted to enhance combustion. When the internal combustion engine is rotating at a high speed, the hydraulic pressure is supplied to the cylinder portion 8 so that the i-th rocker arm 5 and the third rocker arm 6 are shaken by the rocking of the rocker arm L to make the 9th first air intake. The valve 9 and the second suction valve 11 are opened and closed simultaneously with a large lift amount. So indeed

12224881222488

保多量的吸氣而強化輸出。如第3圖及第7圖所示，在和第1搖臂5的後端侧中的第 1低提升凸輪10的連接部，係設置第1滾子（rol ler)從動輪 2 1 ’第1搖臂5的基端係對於迴轉的第1低提升凸輪丨〇、透％，第1滾子從動輪2 1以最小限度的抵抗變成為抵接的狀態。如第7圖所示，第}滾子從動輪2丨係透過多數的滾針車由承25 ’以可自由迴轉的方式構成外滾子26，外滾子26係轉接於第1低提升凸輪1〇。如第4圖及第7圖所示，在第3搖臂6的基端側中的第2 低提升凸輪1 2的連接部係設置第3滾子從動輪24，第3搖臂 6的基端係對於迴轉的第2低提升凸輪丨2、透過第3滾子從動輪24以不抵抗的方式變成為抵接的狀態。如第7圖所不，第3滾子從動輪24係以内滾子22及外滾子23構成（雙環狀的滑動滚子），内滾子22及外滾子23係以同心狀態、可迴轉的方式彼此嵌合，外滾子2 3係轉接於第2低提升凸輪 1 2。内滾子2 2的表面係，例如，實施潤滑表面處理。曰如第5圖及第7圖所示，在和第2搖臂7的基端側中的高提升凸輪2 0的抵接部係設置第2滾子從動輪2 7，第2搖臂7 的基端係對於迴轉的高提升凸輪2〇、透過第2滾子從動輪 2,7以不抵抗的方式變成為抵接的狀態。第2滾子從動輪2 7 係透過多數的滾針軸承28以可自由迴轉的方式構成外滾子 29 ’外滾子29係轉接於高提升凸輪2〇。又，亦可將第1滾子從動輪21和第3滾子從動輪24同樣以内滾子22及外滾子23構成（雙環狀的滑動滾子），使外滾Maintain a large amount of inhalation to enhance output. As shown in FIGS. 3 and 7, a first roller lifter driven wheel 2 1 ′ is provided at a connection portion with the first low lift cam 10 in the rear end side of the first rocker arm 5. 1 The base end of the rocker arm 5 is in contact with the first low-lift cam 丨, the penetration%, and the first roller driven wheel 21 with minimal resistance. As shown in FIG. 7, the second roller follower wheel 2 丨 is configured to be freely rotatable by the bearing 25 ′ through most needle roller cars, and the outer roller 26 is transferred to the first low lift. Cam 1〇. As shown in FIG. 4 and FIG. 7, a third roller driven wheel 24 and a base of the third rocker arm 6 are provided at the connection portion of the second low lift cam 12 in the base end side of the third rocker arm 6. The end system is in a non-resisting state in contact with the second low lift cam 2 and the third roller driven wheel 24 through rotation. As shown in FIG. 7, the third roller driven wheel 24 is composed of an inner roller 22 and an outer roller 23 (a double-ring sliding roller), and the inner roller 22 and the outer roller 23 are concentric. The rotation methods are fitted to each other, and the outer roller 2 3 is transferred to the second low lift cam 12. The surface of the inner roller 22 is, for example, subjected to a lubricated surface treatment. As shown in FIG. 5 and FIG. 7, the second roller follower wheel 2 7 and the second rocker arm 7 are provided in the abutting portion with the high lift cam 20 in the base end side of the second rocker arm 7. The base end is abutted against the turning high-lift cam 20 through the second roller driven wheels 2,7 in a non-resisting manner. The second roller driven wheel 2 7 is configured to be rotatable through a large number of needle bearings 28 to form an outer roller 29. The outer roller 29 is transferred to the high lift cam 20. In addition, the first roller driven wheel 21 and the third roller driven wheel 24 may be similarly constituted by the inner roller 22 and the outer roller 23 (double-ring sliding rollers) to roll the outer rollers.

1222488 五、發明說明（ίο) " -一- 子23轉接於第〗低提升凸輪1〇。又’如第1圖所示，在排氣側的搖臂軸3以可自由搖動的方式支持排氣口搖臂31a、31b，各自的排氣.口搖臂 3 1 a、3 1 b係成為藉由排氣凸輪所驅動的方式。 ^然而’例如’藉由高提升凸輪2 0的第1吸氣閥9及第2 吸氣閥11的/提升量大，藉由第1低提升凸輪1〇的第1吸氣閥 t的提升量係較藉由高提升凸輪20的提升量為小些，又，，由^ 2低提升凸輪丨2的第2吸氣閥n的提升量係被設定和藉由高提升凸輪20的提升量相比為小很多。卜因此，供給壓油至汽缸部8 (作為連結狀態），藉由因搖臂7的搖動的第i搖臂5及第3搖臂6的搖動，使第氣，9及第2吸氣閥11以大的提升量同時開關時，相對於藉由第2低提升凸輪12及第1低提升凸輪1〇的提升量，藉由高提升凸輪20的提升量係較大。而且，以在第2低提升凸輪 1 2和第3滾子從動輪24之間產生大的間隙，在第J低提升凸輪10和第1滾子從動輪21之間產生大的間隙的狀態而可被運轉。雖然省略說明，第1搖臂5、弟Z搖臂7、及第3搖臂6 吊被偏壓於凸輪側。供給壓油至汽缸部8，藉由因1222488 V. Description of the invention (一)-Sub 23 is transferred to the low lift cam 10. As shown in FIG. 1, the rocker arm shaft 3 on the exhaust side can freely swing to support the exhaust rocker arms 31a and 31b, and the respective exhausts. The rocker arms 3 1 a, 3 1 b It is driven by an exhaust cam. ^ However, for example, the first intake valve 9 and the second intake valve 11 with a high lift cam 20 have a large / lift amount, and the first intake valve t with the first low lift cam 10 has a lift. The amount is smaller than the amount of lift by the high lift cam 20, and the amount of lift of the second suction valve n by the ^ 2 low lift cam 2 is set and the amount of lift by the high lift cam 20 is set. Much smaller than. Therefore, the hydraulic pressure is supplied to the cylinder portion 8 (as a connected state), and the i-th rocker arm 5 and the third rocker arm 6 are rocked by the rocking of the rocker arm 7, so that the first, second, and third suction valves are activated. When 11 is opened and closed simultaneously with a large lift amount, the lift amount by the high lift cam 20 is larger than the lift amount by the second low lift cam 12 and the first low lift cam 10. Then, a large gap is generated between the second low lift cam 12 and the third roller driven wheel 24, and a large gap is generated between the J low lift cam 10 and the first roller driven wheel 21. Can be operated. Although description is omitted, the first rocker arm 5, the younger Z rocker arm 7, and the third rocker arm 6 are biased to the cam side. Supply hydraulic oil to the cylinder section 8

7的搖動的第1搖臂5及第3搖臂6的搖動，在^第卜及氣及第2吸氣閥11開關的狀態下，開放壓油至汽缸部8的供時，亦即，切換吸氣狀態時’藉由第2搖臂7 傳係被開放，第i搖臂5及第3搖臂6係藉由偏壓力被搖I 1低提升凸輪10及第2低提升凸輪12侧。When the first rocker arm 5 and the third rocker arm 6 of 7 are shaken, the supply of pressure to the cylinder unit 8 is released when the first and second suction valves 11 and 11 are opened, that is, When switching the inhalation state, the transmission system is opened by the second rocker arm 7 and the i-th rocker arm 5 and the third rocker arm 6 are rocked by the biasing force I 1 low lift cam 10 and second low lift cam 12 sides .

1222488 五、發明說明（π) 此時，例如，由於在最大提升時、第2低提升凸輪j 2 和第3滾子從動輪24之間的間隙係變大，第1搖臂5及第3搖臂6係藉由偏壓力被搖動於第1低提升凸輪丨〇及第2低提升凸輪12側時，第3滾子從動輪24及第1滾子從動輪21係恐會變成倒在第2低提升凸輪1 2及第1低提升凸輪1 〇的狀態。苐1滾子從動輪2 1和第1低提升凸輪1 〇的間隙係僅一些些，所以大的力係不會作用，然而第3滾子從動輪24和第2 低提升凸輪1 2的間隙大，所以被倒下時，較大的力係作用〇因此，第3滾子從動輪24成為内滾子22和外滾子23的雙環狀的滑動滾子構造。藉由將第3滾子從動輪24作為雙環狀的滑動滾子構造，衝擊強度係提高，萬一即使第3滾子從動輪24以大的力倒在第2低提升凸輪丨2，力係藉由面壓被傳達，所以不會產生變形及壓痕而不需擔心外滾會破損。而且，相對於迴轉的第2低提升凸輪12，第3搖臂6的抵接部為考慮剛性及迴轉抵抗所設計的構造。 ^ ，上述的實施例，對於提升量大的第2搖臂7，在設置提升量小的相異的2種類的第丨搖臂5及第3搖臂6的内燃機二2 ΐ明了將提升量的差為大的一方的第3滾子從動子從動輪21作為滑動滾子構造。 "將弟1滚般又’如即使在本案發明人所申請的日本特開2 〇〇 1 —41 〇 1 7所示切換提升量為相異的2種類的搖臂的構造的吸1222488 V. Description of the invention (π) At this time, for example, at the time of the maximum lift, since the gap between the second low lift cam j 2 and the third roller driven wheel 24 becomes large, the first rocker arm 5 and the third When the rocker arm 6 is shaken to the first low lift cam 12 and the second low lift cam 12 side by the biasing force, the third roller driven wheel 24 and the first roller driven wheel 21 may fall to the first position. 2 low lift cam 1 2 and the first low lift cam 10. The clearance between the 1 roller follower wheel 2 1 and the first low lift cam 10 is only a few, so the large force system will not work. However, the clearance between the third roller follower wheel 24 and the second low lift cam 12 is Because it is large, a large force is applied when it is dropped. Therefore, the third roller driven wheel 24 has a double-ring-shaped sliding roller structure of the inner roller 22 and the outer roller 23. By using the third roller driven wheel 24 as a double-ring sliding roller structure, the impact strength is improved, even if the third roller driven wheel 24 falls down on the second low lift cam with a large force Because it is conveyed by surface pressure, there is no deformation or indentation, and there is no need to worry about the outer roll being damaged. In addition, the abutting portion of the third rocker arm 6 with respect to the second low lift cam 12 that rotates has a structure designed in consideration of rigidity and resistance to rotation. ^ In the above embodiment, for the second rocker arm 7 having a large lifting amount, the internal combustion engine 2 and the second rocking arm 5 and the third rocking arm 6 having two different types with a small lifting amount are provided. It is clear that the lifting amount will be increased. The third roller follower driven wheel 21 having a larger difference is configured as a sliding roller. " rolling brother 1 rolls again 'as shown in Japanese Patent Application Laid-Open No. 2000-41-0 1 7 applied by the inventor of the present application.

1222488 五、發明說明（12) ： ' 氣1閥型的内燃機中，本發明係適用為將連接在提升量為車父小之，的凸輪的滾子作為第1滾子從動輪的滑動構造。如第8圖所示般，由於活塞1 4係在上部形成切口部 1 6 ’所以回位彈簧1 7係被配置在自活塞1 4的軸中心偏移的位置。因此’活塞1 4係以中心軸迴轉而轉動時，回位彈簧 1 7的偏壓力係如原先設計般不會起作用。而且，在本實施例係如，6圖、第7圖所示，具備活塞丨4的隔板的機構。立如第2圖、第6圖、第8圖所示，在形成活塞η的切口部1 6的部位的外周形成切口面3 4，對應於切口面3 4，在第 1搖臂5及第3搖臂6的汽缸部8形成軸襯部3 5 (參照第2圖）。切口面34係除了避開汽缸部8的開口部13，同時被形成在避開活塞1 4的背面側的位置，在切口面3 4，栓3 6係在軸方向以接觸嵌合的狀態被配置。栓3 6係藉由壓入等被固定在軸襯部35，栓36的中心軸係在沿著搖臂軸2的水平平面延伸於平行的面而被設置。隔板亦可將栓3 6沿著搖臂軸2的水平平面而被設置在直角方向等，然而將栓36設置在直角方向等時，有必要在活塞14的下部的圓柱部15形成栓36的嵌合部。由於圓柱部 1 5係嵌合滑動於汽缸部8以防止油的漏出的部位，所以在圓柱部1 5形成栓3 6的嵌合部時，恐怕油會漏出。因此，栓 36的中心軸係在沿著搖臂軸2的水平平面的面被沿著平行的面設置。藉由第2搖臂7的搖動，最承受自第1搖臂5及第3搖臂6 在搖動時的第2搖臂7側的重量的部位係成為活塞14的背1222488 5. Description of the invention (12): 'In the case of a gas 1-valve internal combustion engine, the present invention is applicable to a sliding structure in which a roller connected to a cam having a lifting amount of the driver is used as the first roller driven wheel. As shown in Fig. 8, since the piston 14 is formed with a cutout portion 16 'in the upper portion, the return spring 17 is arranged at a position shifted from the center of the shaft of the piston 14. Therefore, when the 'piston 1 4' is rotated around the central axis, the biasing force of the return spring 17 will not function as originally designed. Further, in this embodiment, as shown in Figs. 6 and 7, a mechanism including a diaphragm of the piston 4 is provided. As shown in FIG. 2, FIG. 6, and FIG. 8, a cut surface 3 4 is formed on the outer periphery of the portion where the cut portion 16 of the piston η is formed, corresponding to the cut surface 3 4, on the first rocker arm 5 and the first 3 The cylinder portion 8 of the rocker arm 6 forms a bushing portion 3 5 (see FIG. 2). The cutout surface 34 is formed at a position avoiding the opening portion 13 of the cylinder portion 8 while avoiding the back side of the piston 14. At the cutout surface 3, the bolt 3 6 is fitted in the axial direction in a contact fit state. Configuration. The bolts 36 and 6 are fixed to the bushing portion 35 by press-fitting or the like, and the central axis of the bolt 36 is provided on a parallel plane extending along the horizontal plane of the rocker shaft 2. The baffle 36 may be provided in a right-angle direction or the like along the horizontal plane of the rocker shaft 2. However, when the peg 36 is provided in a right-angle direction or the like, it is necessary to form the plug 36 in the cylindrical portion 15 below the piston 14. Fitting portion. Since the cylindrical portion 15 is fitted and slid on the cylinder portion 8 to prevent oil from leaking out, when the cylindrical portion 15 forms the fitting portion of the bolt 36, the oil may leak out. Therefore, the central axis of the bolt 36 is provided along a parallel plane on a plane along the horizontal plane of the rocker shaft 2. By the rocking of the second rocker arm 7, the part that receives the most weight from the first rocker arm 5 and the third rocker arm 6 at the time of rocking on the second rocker arm 7 side becomes the back of the piston 14.

7042-6017-PF(Nl).ptd 第16頁 !222488 五、發明說明（13) 面。因此，栓3 6係在避開活塞1 4的背面的斜面的位置被設置。又，栓3 6係在避開汽缸部8的開口部1 3的位置的軸襯部35被固定。因此，第2搖臂7的前端7a、7b係不會被阻礙由開口部1 3移動至活塞1 4側，又，透過活塞1 4的搖動力的傳達亦可在背面的全面進行。切口面34係被形成至圓柱部1 5的中間部為止，藉由栓 3 6，活塞1 4的脫落係被防止。又，如第2圖、第8圖所示，在第1搖臂5及第3搖臂6中的汽缸部8的軸襯部3 5係以同一方向被形成，活塞1 4的切口面34係變成同一方向，栓3 6係以平行的狀態被設置。因此，可將第1搖臂5及第3搖臂6的活塞1 4共通化，可達到降低元件成本及防止錯誤組合。然而，在吸氣側的搖臂軸2，第1搖臂5、第3搖臂6及第2搖臂7係被支持在各汽筒，在第1搖臂5及第3搖臂6係包括具有汽缸部8及活塞1 4的切換機構。因此，和排氣侧的閥開關機構相比，吸氣側的閥開關機構係複雜且重量亦大的狀態。而且，如第1圖所示，吸氣側的搖臂軸2的直徑D1係被形成較排氣側的搖臂軸3的直徑D2為大（例如ι0%程度）。因 f，重量大的部分的剛性係被確保，可使閥動系的動特性提高。又，藉由將搖臂軸2的直徑〇丨擴大，油路18的内徑也可擴大，可減低流通油路丨8的壓油的壓損而使切換機的性能提高。 ' 、基於第9圖及第11圖，說明了至搖臂軸2的油路18的壓油的供給排出機構，亦即，汽缸部8的活塞丨4的驅動機構7042-6017-PF (Nl) .ptd Page 16! 222488 5. Description of the invention (13). Therefore, the stopper 36 is provided at a position avoiding the inclined surface of the back surface of the piston 14. In addition, the bolt portion 36 is fixed to the bushing portion 35 at a position avoiding the opening portion 13 of the cylinder portion 8. Therefore, the front ends 7a and 7b of the second rocker arm 7 are not hindered from moving from the opening portion 13 to the piston 14 side, and transmission of the rocking power through the piston 14 can be performed on the entire back surface. The cut surface 34 is formed up to the middle portion of the cylindrical portion 15 and the plunger 14 is prevented from falling off by the plug 36. In addition, as shown in FIGS. 2 and 8, the bushing portions 35 of the cylinder portion 8 in the first rocker arm 5 and the third rocker arm 6 are formed in the same direction, and the cut surface 34 of the piston 14 is formed. The lines become the same direction, and the bolts 3 and 6 are installed in a parallel state. Therefore, the pistons 14 of the first rocker arm 5 and the third rocker arm 6 can be shared, which can reduce component costs and prevent erroneous combinations. However, the rocker shaft 2 on the intake side, the first rocker 5, the third rocker 6, and the second rocker 7 are supported by each cylinder, and the first rocker 5 and the third rocker 6 are included A switching mechanism including a cylinder portion 8 and a piston 14 is provided. Therefore, compared with the valve switching mechanism on the exhaust side, the valve switching mechanism on the intake side is complicated and heavy. Further, as shown in FIG. 1, the diameter D1 of the rocker arm shaft 2 on the intake side is formed to be larger (for example, about 0%) than the diameter D2 of the rocker arm shaft 3 on the exhaust side. Due to f, the rigidity of the heavy part is ensured, and the dynamic characteristics of the valve train can be improved. In addition, by increasing the diameter of the rocker shaft 2, the inner diameter of the oil passage 18 can also be enlarged, which can reduce the pressure loss of the hydraulic oil flowing through the oil passage 8 and improve the performance of the switcher. 'Based on FIGS. 9 and 11, the supply and discharge mechanism of the hydraulic oil to the oil passage 18 of the rocker shaft 2, that is, the drive mechanism of the piston 丨 4 of the cylinder portion 8 will be described.

7〇42-6017-PF(Nl).ptd 第17頁 1222488 五、發明說明（14) (可變閥控制機構）在汽缸蓋1的端部側係形成流通自被配置於汽缸本體的下部的單一的油幫浦41(油壓源）（參照第u圖）的壓油的油通路42，在油通路42係設置控制壓油供給排出至油路18 的油控制閥43(可變閥控制機構）。自油控制閥43的上流側的油通路42分支而設置蓄壓路44，在蓄壓路44，蓄壓器45 係被連接。蓄壓器45係在汽缸蓋j以2個構件被固定。而且，蓄壓器4 5和油幫浦4 1係被分離地設置，可減低 ^隨油幫浦的吐出的壓油的脈動被傳達至蓄壓器仞，即使萬-f蓄壓器45内部混入異物，#由壓油的脈動，蓄壓器 4=内部的油的攪拌係被減低，而可防止在蓄壓器產生延緩07〇42-6017-PF (Nl) .ptd Page 17 1222488 V. Description of the invention (14) (Variable valve control mechanism) The end portion of the cylinder head 1 is formed to circulate from a cylinder disposed at the lower portion of the cylinder body. A single oil pump 41 (hydraulic pressure source) (see FIG. U) of the hydraulic oil passage 42 is provided with an oil control valve 43 (variable valve control) that controls the supply and discharge of hydraulic oil to the oil passage 18 in the oil passage 42 mechanism). A pressure accumulating path 44 is branched from the oil passage 42 on the upstream side of the oil control valve 43, and an accumulator 45 is connected to the pressure accumulating path 44. The accumulator 45 is fixed to the cylinder head j with two members. In addition, the accumulator 45 and the oil pump 41 are separately provided, which can reduce the pulsation of the pressure oil discharged with the oil pump to the accumulator 仞, even if it is inside the Wan-f accumulator 45. Mixed with foreign matter, # due to the pulsation of the pressure oil, the accumulator 4 = the internal oil stirring system is reduced, and the delay in the pressure accumulator can be prevented. 0

在油控制閥43的上流側，在蓄壓路44的分支浐側的油通路4 2設置第2過滹哭4 6。在笛！！回士；，L 被汉置在油幫浦41的吐出側旁邊的第 ,〇 ^ ^ χ 油幫浦41的旁通路，安裝未圖示的’：1 援過間慮… 支點ί第Γ、Λ載二第U圖般，在油通路42及蓄壓路44的分支”、、占及第2過濾态46吐出側為止的油 ...^ 浦41的吐出側及第2過滤器43流：通=产冗短的位置設置第2過濾器46。如此由通路長度為配合油通路長度而增大的油通路二第2過渡器46時，的量係藉由將油通路42及蓄壓路^ 1未能除盡的異物 46吐出側為止的油通路長度縮短=歧點及第2過遽器果的防止在通路内發生的異物 ==且可更有效昏Μ器45内。On the upstream side of the oil control valve 43, a second passage 46 is provided in the oil passage 4 2 on the branch 浐 side of the pressure storage path 44. On the flute! !! Hui Shi ;, L was placed on the side of the oil pump 41 by the side of the pump side. ^^^ χ The side passage of the oil pump 41 was installed with a not-shown ': 1 to aid the intervening ... Λ contains the second U-shaped diagram, the branch of the oil passage 42 and the pressure storage path 44 ”, the oil occupying the discharge side of the second filtering state 46, ... ^ The discharge side of the pump 41 and the second filter 43 flow : Pass = Set the second filter 46 in a short position. In this way, when the second passage 46 of the oil passage 2 is increased by the length of the passage to match the length of the oil passage, the amount is obtained by connecting the oil passage 42 and the pressure accumulation. The shortening of the oil passage length to the discharge side of the foreign body 46 that cannot be eliminated in the road ^ 1 = the divergence point and the prevention of the foreign body in the passage of the second organ = = and can be more effective in the device 45.

1222488 五、發明說明（15) 千古如第1〇f所示’蓄壓器45係包括在汽把蓋1被固定為 +自由狀本體51，在本體51係包括藉由彈簧52以可 ===至I:的活塞53。彈菁52的上部係設鲊。、卡衣55,彈簧52為被收藏在本體51内的狀，缸的下部形成螺栓部56，藉由將螺栓部56栓入 p盍1的母螺栓部57，f壓器45係被 '固定於汽缸^之際，本體51的上；的f1 部係畜缸蓋1，二斤缸：^ϋ上面突出的狀態。本體51係被固定於汽活夷53的下\畜路44係連通於本體51，壓油係被供給於 f 53的下侧，對抗於彈簧52的偏壓力活塞53會上升，以壓油係被蓄壓在本體51内。升斤汽缸蓋1的上部係設置蓋61，為了捕捉霧氣，内没置緩衝板62及平板63。而且，在自汽缸使萬卡％55脫洛，彈簣座54及彈簧52、活夷η孫可拉含在平板63以防止往外面飛散。土 3係可接觸而且，本體51的上部和平板63的間 ^ =1的栓緊固定一鬆開而本體51係移動於離線方向(上方），在螺栓部5 6的栓合係被開放前，太乂平板63接觸，本體51係不會脫落。因此，油、。卩係壓路44會被開放在外部的情形係消失。彳、或是蓄由於蓄壓器45的本體51係以下部的螺栓⑼固定於汽缸第19頁 7042-6017-PF(Nl).ptd 1222488 五、發明說明（16) =1 ’即使在固定部產生油漏出等’不會漏出固定部的板簡略化，可抑制油漏出至外部。，丄本體51的固定係可藉由壓入合藉由螺栓部65的固定之外的構成^ 〜且l态45的本體51係被固定於汽缸蓋1，所以可谷易進行畜壓器4 5的交換及保養。機槿在:11Ϊ構成的搖臂軸2的油路18的壓油供給排出制閥43及蓄厥。過濾态46，壓油係被過濾而被供給於油控 (關）時，#由ί4/、排氣側的搖臂軸3。油控制閥43關閉 ^關）守精由畜屢路44的油壓，壓油係被儲存在蓄壓器 20的驅動，^ ^ $時’為了切換至高提升凸輪 =側的搖臂轴2的油路I此時，績降低，所以且由通路42及蓄壓路44的油壓一時的被㈣，不=存在蓄壓器45的壓油藉由彈簣52的偏壓力 $足夠的壓油係被補足。構 ::係：Ϊ : ΐ在；個汽筒具有2個汽缸部8的切換機 /㈢不足’可迅速回應供給壓油。被2藉由在蓄壓器45的上流側具備第2過滤器在壓的屋油的異物可被除去。因塞53係不會產生延緩係不合ί 内侵入異物的情形係消失，在活 7042-6017-PF(Nl).ptd 第20頁 12224881222488 V. Description of the invention (15) Eternal as shown in 10f, 'The pressure accumulator 45 is included in the handlebar cover 1 is fixed as + free-form body 51, and the body 51 is included by the spring 52 to be able to == = To I: Piston 53. The upper part of the spring 52 is provided with a cymbal. The card holder 55 and the spring 52 are stored in the body 51. A bolt portion 56 is formed in the lower part of the cylinder. The bolt portion 56 is bolted to the female bolt portion 57 of p 盍 1, and the f presser 45 is fixed. In the case of the cylinder ^, the upper part f1 of the body 51 is the animal tank head 1, and the two-pound cylinder: ^ 突出 is protruding from the top. The main body 51 is fixed to the lower part of the steam engine 53. The animal path 44 is connected to the main body 51. The hydraulic oil system is supplied to the lower side of the f 53. The biasing force of the piston 53 against the spring 52 rises to the hydraulic system. The pressure is stored in the body 51. The upper part of the cylinder head 1 is provided with a cover 61. In order to capture the mist, a buffer plate 62 and a flat plate 63 are not provided. In addition, in the self-cylinder, Wanka% 55 is released, and the impeachment seat 54 and spring 52, and the movable member Sun Kola are contained in the flat plate 63 to prevent it from flying out. Soil 3 is accessible and the bolt between the upper part of the body 51 and the flat plate ^ = 1 is loosened and the body 51 moves in the offline direction (upper) before the bolt system of the bolt part 56 is opened. If the flat plate 63 comes into contact, the body 51 will not fall off. So oil. The situation where the pressure path 44 is opened to the outside disappears.彳, or the body 51 of the accumulator 45 is bolted to the lower part of the accumulator ⑼ fixed to the cylinder page 19 7042-6017-PF (Nl) .ptd 1222488 5. Description of the invention (16) = 1 'even in the fixed part The plate that does not leak out, such as oil leakage, is simplified, and oil leakage to the outside can be suppressed. The fixing system of the 丄 main body 51 can be configured by pressing and fitting other than the fixing of the bolt portion 65 ^ ~, and the main body 51 of the state 45 is fixed to the cylinder head 1, so that the animal pressure device 4 can be easily carried out 5 exchange and maintenance. The hydraulic oil supply and discharge control valve 43 and the accumulating oil in the oil passage 18 of the rocker shaft 2 constituted by the machine: 11Ϊ. In the filtration state 46, when the pressure oil system is filtered and supplied to the oil control (off), # 由 ί4 /, the rocker shaft 3 on the exhaust side. The oil control valve 43 is closed ^ closed) Shoujing is driven by the oil pressure of the animal 44 and the oil pressure system is stored in the accumulator 20, ^ ^ $ 'To switch to the high lift cam = side of the rocker shaft 2 At this time, the performance of the oil path I is reduced, so the oil pressure in the passage 42 and the pressure storage path 44 is temporarily trapped. The pressure of the oil stored in the accumulator 45 is not sufficient, and the pressure of the biasing force 52 is sufficient. The system was made up. Structure :: Department: Ϊ: ΐ 在; a cylinder with 2 cylinder units 8 switcher / ㈢ insufficient 'can quickly respond to the supply of pressure oil. The foreign matter in the house oil pressed by the second filter provided on the upstream side of the pressure accumulator 45 can be removed. Because the plug 53 series will not cause a delay, the system will not invade, and the situation of invading foreign objects will disappear. In the living 7042-6017-PF (Nl) .ptd page 20 1222488

又，因為自蓄壓器45被遽裔4 6而被送至油控制閥4 3 濾器4 6的壓損，可迅速回應 18 ° 壓出的壓油係不會通過第2過，所以不會影響在流通第2過供給壓油至搖臂軸2的油路一而且即使疋具備k升ϊ為相異的第1吸氣閥g及第2 ，氣閥1 1的複雜構成的連結切換機構的閥動機構，在蓄壓态4 5蓄壓的壓油係在第2過濾器4 6被濾過，在蓄壓器4 5混 ::物的情形係消失。因此’即使是具備蓄壓器45°的閥動 *、冓，可作為防止異物混入的内燃機的閥動機構。作為適用上述蓄壓器45的構成的内燃機，及適用設置 ί = :46的電路構成的内燃機，舉例說明了具備自第1 搖#5、第3搖臂6及第2搖臂7構成的切換機構的物件，然 :::適用具備其他構成的切換機構的内燃機。例如，如人的曰本特開200 1 —41 °17所示，即使在將相t 類的搖臂切換的構造的吸氣1閥型的内適用f壓器45的構成，設置第2過濾器46的電 -置U六ϊ ΐ ί 1列★，舉例說明了將凸輪的切換機構的切換的機構設置在排氣:。子然而亦可適用進行凸輪〔發明的效果〕臂軸申專圍項的内燃機的閥動機構係包括：搖氣閥：ί 了 Λν叙雨端係被連結於第1 °及氣閥或是第1排乳閃以可自由搖動的方式被支持在上述搖臂軸，藉由第In addition, since the pressure accumulator 45 is sent to the oil control valve 4 3 and the pressure loss of the filter 4 6 by the pump 46, it can respond quickly to the pressure of 18 °. The pressure oil system will not pass through the second pass, so it will not It affects the oil path of the second oversupply of oil to the rocker shaft 2 and even if it has a first suction valve g and a second suction valve g that are different from each other, the valve switch 11 has a complicated switching mechanism. In the valve-operated mechanism, the pressure-accumulating oil in the accumulating state 45 is filtered by the second filter 46, and disappears when the accumulator 45 is mixed with the ::. Therefore, even if the valve movement *, 冓 with a 45 ° accumulator is used, it can be used as a valve operating mechanism for an internal combustion engine that prevents foreign matter from entering. As an internal combustion engine to which the above-mentioned accumulator 45 is applied, and an internal combustion engine to which a circuit configuration of ==: 46 is applied, examples include switching from the first rocker # 5, the third rocker 6 and the second rocker 7 Objects of the mechanism, then ::: Applies to internal combustion engines with other constituent switching mechanisms. For example, as shown in Japanese Patent Application Laid-Open No. 200 1 -41 ° 17, even if the structure of the pressure 1 type is applied to the suction 1-valve type of the structure in which the phase-type rocker is switched, a second filter is provided.器 46 的电-置 U 六 ϊ ί ί 1 row ★, for example, the cam switching mechanism is set to the exhaust mechanism. However, cams can also be applied. [Effects of the invention] The valve mechanism of the internal combustion engine of the arm shaft application includes: rocker valve: The Δν rain end system is connected to the 1 ° and the valve or the One row of milk flashes is supported on the rocker shaft in a freely swinging manner.

1222488 五、發明說明（18) 1低提升凸輪所驅動；第3搖臂，其前端係被連結於上述第 2吸氣閥或疋第2排氣閥，以可自由搖動的方式被支持在上述搖臂軸，藉由較上述第1低提升凸輪的提升量為小的第2 低提升凸輪所驅動；第2搖臂，其前端為可連結於上述第工及第3搖臂側，以可自由搖動的方式被支持於上述搖臂軸，藉由較上述第丨低提升凸輪的提升量為大的高提升凸輪所驅動；可變閥控制機構，藉由自油壓源通過第丨過遽器的壓油係透過油通路被供給排出，以對應於控制上述^ 1及第2吸氣閥或是上述第i及第2排氣閥的開關^況的域第1搖臂及第3搖臂，切換上述第2搖臂的連結狀熊及狀態；蓄壓裝置’其被設置在上述油通路的上述〜可變制機構的上流侧’蓄壓被供給於上述可變閥控制機構的^ 油；以及第2過濾器，其被設置在上述油通路的上裝置的上流側、且在上述第1過濾器的下流側。因此，即使疋具備提升量為相異的吸氣第2吸氣閥（第2排氣閥）的複雜構成的連妹；^ 機構，在蓄壓裝置所蓄壓的壓油係：異物混入在蓄壓裝置的情形係消失。 u被匕慮’ 有關申請專利範圍第2項的内燃機的閥請專利範圍第i項所記載的内燃機的構ϋ申壓裝置的本體係被固定於汽缸蓋。上述畜因此，蓄壓裝置的交換、保養等係較容有關申請專利範圍第3項的内燃機的 H進行/ 請專利範圍第2項所記載的内燃機的閥動機構係在申傅中，上述油1222488 V. Description of the invention (18) 1 Driven by a low lift cam; the front end of the third rocker arm is connected to the second suction valve or the second exhaust valve, and is supported on the above in a freely swinging manner. The rocker shaft is driven by the second low lift cam, which has a smaller lifting amount than the first low lift cam; the front end of the second rocker arm can be connected to the side of the third and third rocker arms, so that The free-swinging method is supported by the above-mentioned rocker arm shaft, and is driven by the high-lift cam with a larger lifting amount than the above-mentioned low-lift cam; the variable valve control mechanism passes the first-pass through the oil pressure source The oil pressure of the device is supplied and discharged through the oil passage to correspond to the first and second rocker arms and the third rocker that control the opening and closing of the first and second suction valves or the i and second exhaust valves. Arm to switch the connected bear and state of the second rocker arm; the pressure accumulating device 'which is provided on the upstream side of the variable mechanism of the oil passage' and accumulates pressure to be supplied to the variable valve control mechanism ^ Oil; and a second filter provided on the upstream side of the upper device of the oil passage And at the downstream side of the first filter. Therefore, even if you have a complicated structure with a second intake valve (second exhaust valve) that has a different amount of lift; ^ mechanism, the hydraulic system of the pressure stored in the pressure storage device: foreign matter mixed in The situation of the pressure storage device disappeared. u be constrained ’The valve of the internal combustion engine in the second patent application scope. The system of the pressure application device for the internal combustion engine described in the first patent scope is fixed to the cylinder head. Therefore, the exchange and maintenance of the pressure storage device are relatively easy. The H of the internal combustion engine with respect to the scope of patent application No. 3 / the valve operating mechanism of the internal combustion engine described in the scope of patent scope No. 2 are in Shen Fu.

7042-6017-PF(Nl).ptd 第22頁五、發明說明（19) 壓源係為被配署+ m 置在汽缸體的下部的單一的油幫、、走 f。成低因油幫浦的壓油的脈動被傳達 _ 直。咬至畜壓裳有關申請專利範圍第4項的内燃機的閥 :::範圍第3項所記載的内燃機的閥動機構中，丄匕 Ϊ ί : : : ΐ ί於上述第2過濾器和上述蓄壓裝置的上述 e /田巧席和上述弟2過濾态的上述油通路的長度為短的位置。蓄厭Ξ Ϊ ’可更有效果的防止在通路内所發生的異物混入畜壓裝置。 17042-6017-PF (Nl) .ptd Page 22 V. Description of the invention (19) The pressure source is a single oil gang + m placed in the lower part of the cylinder block, and walking f. The pulsation of the low pressure oil pump is conveyed straight. Bite to the valve of the internal combustion engine in the scope of patent application No. 4 of the patent application ::: The valve operating mechanism of the internal combustion engine described in the scope of the third item, 丄: :: 于于 is in the second filter and the above The positions of the oil passages of the pressure storage device (e / 田巧席) and the above (2) filtered state are short. Anorexia 的 ’can prevent foreign matter that enters the passage from entering the animal pressure device more effectively. 1

第23頁 7042-6017-PF(Nl).ptd 1222488 圖式簡單說明第1圖係表示具備有關乂 —一的内燃機的頭部的平面圖。^明的一實施例的閥動機構第2圖係第1圖Φ 三第3圖係從第2圖中的m部分的擴大圖。第4圖係從第2圖中的頭所看的圖。第5圖係從第2圖中的v-v:=5頭所看的圖。第6圖係活塞支持部的斷面：的前頭所看的圖。凸輪軸側的搖臂的斜視圖。苐8圖係自吸氣閥側的搖臂的斜視圖。第9圖係表示油壓系統的内圖。要4分的斜視第1 〇圖係表示蓄壓器的安裝狀況的斷面苐11圖係油壓系統的概略電路圖。 ° 符號說明 1汽缸蓋、 4 凸輪軸、 6第3搖臂、 8 汽缸部、 1 0第1低提升凸輪 1 2第2低提升凸輪 14活塞、 1 6 切口部、 18 油路、 20高提升凸輪、 2、3搖臂軸、 5第1搖臂、 T第2搖臂、 9第1吸氣閥、 11第2吸氣閥、 1 3開口部、 1 5圓柱部、 1 7回位彈簧、 19通路、 21第1滾子從動輪、 7042-6017-PF(Nl).ptd 第24頁 1222488 圖式簡單說明 22 内滾子、 23 外滾子、 24 第3滾子從動輪（滑動滾子）、 25 、2 8 滾針軸承、 26 、2 9 外滾子、 27 第2滾子從動輪（滾針） 34 切口面、 35 軸襯部、 36 栓、 41 油幫浦、 42 油通路、 43 油控制閥、 44 蓄壓路、 45 蓄壓器、 46 第2過濾器、 47 第1過濾器、 48 旁通路、 51 本體、 52 彈簧、 53 活塞、 54 彈簧座、 55 卡環、 56 螺栓部、 61 蓋、 62 緩衝板、 63 平板。Page 23 7042-6017-PF (Nl) .ptd 1222488 Brief Description of Drawings Figure 1 is a plan view showing the head of an internal combustion engine equipped with 乂-一. ^ A valve operating mechanism according to an embodiment. FIG. 2 is the first diagram Φ 3 FIG. 3 is an enlarged view from the part m in the second diagram. FIG. 4 is a view seen from the head in FIG. 2. Fig. 5 is a view viewed from v-v: = 5 in Fig. 2. Fig. 6 is a sectional view of the piston support portion: a front view. An oblique view of the rocker arm on the camshaft side.苐 8 is a perspective view of the rocker arm from the suction valve side. Fig. 9 is an internal view of a hydraulic system. A 4-point squint. Figure 10 is a cross section showing the installation state of the pressure accumulator. Figure 11 is a schematic circuit diagram of a hydraulic system. ° Symbol description 1 cylinder head, 4 camshafts, 6 third rocker arms, 8 cylinders, 1 0 1st low lift cam 1 2 2nd low lift cam 14 piston, 1 6 cutout, 18 oil path, 20 high lift Cam, 2, 3 rocker shafts, 5 1st rocker, 2nd rocker, 9 1st suction valve, 11 2nd suction valve, 1 3 openings, 1 5 cylinders, 1 7 return spring , 19-passage, 21 1st roller driven wheel, 7042-6017-PF (Nl) .ptd page 24 1222488 diagrams briefly explain 22 inner roller, 23 outer roller, 24 3rd roller driven wheel (sliding roller Rollers), 25, 2 8 needle roller bearings, 26, 2 9 outer rollers, 27 second roller follower wheels (needle rollers) 34 notch surfaces, 35 bushings, 36 bolts, 41 oil pumps, 42 oil passages , 43 oil control valve, 44 pressure accumulator, 45 pressure accumulator, 46 second filter, 47 first filter, 48 bypass, 51 body, 52 spring, 53 piston, 54 spring seat, 55 snap ring, 56 Bolt section, 61 cover, 62 bumper plate, 63 flat plate.

7042-6017-PF(Nl).ptd 第25頁7042-6017-PF (Nl) .ptd Page 25

Claims

1222488 六、申請專利範圍 1 · 一種内燃機的間動機構，包括：搖臂軸；第1搖臂，前端係被連結於第1吸氣閥或是第1排氣閥，以可自由搖動的方式被支持在上述搖臂軸，藉由第i 低提升凸輪所驅動；第3搖臂，前端係被連結於上述第2吸氣閥或是第2排氣閥，以可自由搖動的方式被支持在上述搖臂軸，藉由較上述第1低提升凸輪的提升量為小的第2低提升凸輪所驅動；1222488 6. Scope of patent application 1 · An interlocking mechanism of an internal combustion engine, including: a rocker arm shaft; a first rocker arm, the front end of which is connected to a first suction valve or a first exhaust valve, and can swing freely Supported on the rocker shaft, driven by the i-th low-lift cam; the third rocker, the front end of which is connected to the second suction valve or the second exhaust valve, is supported in a freely swinging manner The rocker shaft is driven by a second low lift cam having a smaller lifting amount than the first low lift cam;

第2搖臂，前端為可連結於上述第1及第3搖臂侧，以可自由搖動的方式被支持於上述搖臂軸，藉由較上述第j 低提升凸輪的提升量為大的高提升凸輪所驅動；、/可變閥控制機構，藉由自油壓源通過第丨過濾器的壓油，透過油通路被供給排出，以對應於控制上述第丨及第2 ，氣閥或是上述第1及第2排氣閥的開關狀況的上述第}搖臂及”搖,，切換上述第2搖臂的連結狀態及分離狀態；播沾ΐ ΐ裝置’被設置在上述油通路的上述可變閥控制機構的上,“則，蓄壓被供給於上述可變閥控制機構的壓油；以及The second rocker arm has a front end which can be connected to the first and third rocker arms, and is supported on the rocker shaft in a freely rotatable manner. The lift amount is larger than the j-th lower lift cam. Driven by the lifting cam; // Variable valve control mechanism, through the oil pressure source from the oil pressure source through the first filter through the oil passage is supplied and discharged, corresponding to the control of the first and second, the valve or The first and second rocker arms of the above-mentioned first and second exhaust valves are switched to switch between the connected state and the disconnected state of the second rocker arm. The above-mentioned variable valve control mechanism, "then, accumulates pressure oil supplied to said variable valve control mechanism; and

…^即：汉直隹上述 >田遇硌的上述蓄壓努置# 上k側’且在上述第1過濾器的下流側。、' 其中2上範圍第1項戶斤述，内《的間動機構， ’、蓄I衣置的本體係被固疋於汽缸蓋。 3.如申請專利範圍第2項所述之内燃機的間動機構，... ^ That is, the above-mentioned pressure storage unit # 上 k 边 'of Han Zhizhi > Tian Yuhuan is on the downstream side of the first filter. , 'Among them, the first item of the above 2 range, the interim mechanism of the inner part,', the system of the storage system is fixed to the cylinder head. 3. Interlocking mechanism of internal combustion engine as described in item 2 of the scope of patent application,

7042-6017-PFiNl).ntH 第26頁 1222488 六、申請專利範圍其中、上述油壓源係為被配置在汽缸體的下部的單一的油幫浦。 4.如申請專利範圍第3項所述之内燃機的閥動機構，其中上述第2過濾器係被配置於上述第2過濾器和上述蓄壓裝置的上述油通路的長度較上述油幫浦和上述第2過濾器的上述油通路的長度為短的位置。7042-6017-PFiNl) .ntH Page 26 1222488 6. Scope of patent application Among them, the above-mentioned oil pressure source is a single oil pump arranged at the lower part of the cylinder block. 4. The valve operating mechanism of an internal combustion engine according to item 3 of the scope of patent application, wherein the second filter is arranged in the second filter and the pressure accumulator, and the length of the oil passage is longer than that of the oil pump and the oil pump. The length of the oil passage of the second filter is a short position.

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