200930894 九、發明說明： 【發明所屬之技術領域】 本發明係有關燃料壓力調整器，其係在裝設於車輪等 之燃料箱内用以將燃料加壓供給至將燃料噴射於引擎之噴 射器（injector)之燃料供給裝置之組成構件之中，將燃料 壓力調整為狀值者，詳而言之，係有關於該燃料壓㈣ 整器之内部結構者。 ❹ 【先前技術】 為了使噴射器噴射引擎所需要之燃料，務必將供給至 此喷射器之燃料壓力保持為一定。因此，在將由燃料栗所 加屋，燃料加以過渡之燃料過濾器之下—段配設燃料壓力 調整器，乃廣為一般所知。 一作為此燃料壓力調整器之一例，係有將殼套(casing) 内稭由隔板（dlaphragm)分隔形成為壓力室與背壓室，並且 2有固設於該隔板且相通兩室間之閥孔之活動閥體、設 ❹=力室側之固定間體、及設在背壓室而用以使活動間體 座&於固定閥體之彈簧（spring)所構成者。此種情形下， ㈣所加壓之燃料流人於壓力室，會使隔板在由 該壓力至之燃料壓力所承受之力、盘 ^ 、坪黃之彈壓力相互平 衡之位置不斷地移動，換言之， 十 人》她叫 _ 错由反设在兩閥體間之座 σ及離開，而侍以調整燃料背 M WΑ ^ 攸牙&至之排出量，且將從燃 例如專利文獻D。之U之愿力保持為-定（參照 [專利文獻勒96/咖號公報（第7頁第14行至 320133 6 200930894 第9頁第7行、第1圖） 【發明内容】 -[發明欲解決之問題] - 纽專利文獻1所揭示之燃料壓力調整器，係進-步 作^猎由保持固定閥體之固定閥導件（guide)將壓力室區 隔為燃料入口側與隔板，侧，並 立且使兩者相通之結構，因此 I達成^化’是故，可作為燃料供給裝置之—構件收容 〇 ^ 办 較於因為要將從背壓室排出之舞料， 亦即將多餘燃料直接送回至烬料 燃科相内，而配設於燃料箱與 引擎之間之情形，多餘燃料不 , - -ΓΧ,, 有因為引擎之熱而被加熱 之^而可抑制在燃料箱内之燃料蒸氣或氣泡之產生。 I此’為了要提高燃料壓力調整器之歷性能， 要將固定閥體與活動間體之鬥* ^ ' •v…山/ 同軸性提高。然而’在該專利 文獻1中，係將用以保持固宏 於.、 固疋闕體之固定閥導件>1入固定 β軸度亞化之虚會有口疋閥體與殼套間之同 性能惡化之問題。此外，在私套之^之同軸性變差，調壓 免地隨歛縫㈤king)而產生^差^壁本身’由於不可避 動。 差’因此難謂燃料會順暢流 本發明係有鑑於上述之問 一鍤囡宁問脚所創者，其目的在提供 =^閥體（固疋側間單元）與活動閥體 間之同軸性可獲得提高之燃㈣ 動⑽早兀） [解決問題之方案] °。者。 本發明之燃㈣力調整器係具備：殼套（CaSlng)，由 320133 7 200930894 具有自燃料泵輸入燃料之燃料入口之殼體（case)與具有將 燃料輸出至配設有上述燃料泵之燃料箱之燃料出口之座殼 --(housing)所構成；固定側閥單元，以可擺動之方式位於上 ..述殼體内；及隔板，藉由在將上述殼體及座殼固定之際予 以固定而將上述殼套内分隔形成為壓力室及背壓室；且具 備··活動侧閥單元，可與上述固定側闕單元接觸或分離； 及彈簧，使該活動側閥單元朝上述固定側閥單元接觸丨且 ❹設置有使上述固定側閥單元可在預定之位置擺動之引導閥 及閥保持器（holder)，並且上述引導間係與上述殼體一體 形成者。 [發明之功效] 如以上所說明，本發明可獲得調壓性能優異之燃料壓 力調整器，結果’可提供—種響應性良好之燃料供給裝置。 【實施方式】 (實施形態1) 〇 第1圖係為本發明實施形態】之燃料壓力調整器之外 觀斜視圖，第2圖係為第】圓之分解斜視圖。此外，第3 圖係為第！圖之剖面圖’第4圖係為第3圖中之殼體侧之 放大圖，第5圖係為第4圖之A視圖。 如第1圖所示’燃料壓力調整器(以下㈣力調節器 (Press㈣regulator))1(n，在其外觀上，係由殼體ι與 座殼2所構成，更詳而言之，係將殼體丨之凸緣部h(參 照第2圖）壓入於座殼2之承接部^(參照第2圖），且將 糸接部2a之前端2al向内側折彎,並進行敛縫，藉此而使殼 320133 8 200930894 體1與座殼2固定以發揮作為殼套（casing)21之功能。在 係形成有燃料入口 lb，此外於座殼2係形成有』 -口 2b(參照第3圖）’然而，燃料係如箭頭所示，於紙面 ..上’係成為從上方朝向下方流動。另外’燃料係如一般所 知’以燃料栗及燃料過遽器（均未圖示）加壓過滤之燃料會 到達燃料入口 lb，而由此壓力調節器1〇1將朝向喷射器（未 圖示）所供給之燃料之壓力保持為預定值之結果，多餘之燃 ❹料即從燃料出口 2b排出。此時，配設該壓力調節器ι〇ι ^燃料供給裝置係裝設於未圖示之燃料箱内，因此上述之 「成為多餘之燃料」即直接回到燃料箱内，且再度由燃料 栗所吸引並加壓。此外，為了使此屬力調節器i〇i液密地 連接於燃料過滤器與喷射器間之燃料供給管線（例如燃料 過濾器殼體），而於殼體i具備有〇型環3。 ^第2圖所示，在座殼2之杯（叫？）部2c，係具備有 作為定位用之設於杯部2c之底面之凸部2cl及後述之彈簧 ❹導件5(參照第3圖）’以使其内徑部成為燃料流路之彈簧4 不會干擾到燃料出口 2b。此彈簀4雖係隔介彈簧導件5\ 將隔板6朝紙面之上方向彈推，惟由於隔板6之外徑係與 凸緣部la大致相等，故於固定前述之殼體丨與座殼2之 際此隔板6亦被固定，亦即會形成介設於凸緣部1 a與承 $部2a之間，而且，殼套21係由隔板6而分隔形成為2 至。兹將此等2室中在隔板β之紙面之上側者，亦即殼體 1側稱為壓力室，將下側，亦即座殼2側稱為背壓室。 如第3圖所示，為了使隔板6隨順由於彈簧4之彈推 320133 9 200930894 所導致之彈簧導件5之移動，係使隔板6藉由彈簧導件5 與銜鐵（aoiature)7來夾持，而將此等兩構件以歛縫等來 ，固定。在此，在銜鐵7係以從該銜鐵7之表面突出之方式 壓入有呈筒狀構件之閥座（valve seat)，且，藉由此間座 8之連通孔8a ’將由隔板6所分隔形成之2室連通，呈體 而言，燃料將會從壓力室朝背壓室流通。另外’兹於^將 彈簧導件5、隔板6、銜鐵7、及由閥座8所形成之一體結 ❹構亦即將相當於專利文獻i之活動闕體稱為「活動側 閥早7〇 2 2 |。 如第4圖所示，在殼體！係藉由閥彈簧u而於紙茂 上i以向下彈推之方式具備有固定側閥單元23,該固定伯 閥單元23係藉由鋼球9與閥1〇以例如溶接而獲得，相居 =專：文獻】之固定閥體者。換言之，活動侧—固定側心 早二、23係以相對向之方式配設，詳而言之在殼套 二内間座8與闕1〇彼此的表面相對之方式定位(參 ❹:第3圖）。因此，與專利文獻ljg]樣地藉由燃料流入壓力 隔板6即不斷地在由⑽力室中之燃料壓力所承受的 此2彈簧4在背壓室中之彈推力相平衡之位置移動，藉 而使朝^座8與閥1〇間之座合（閉閥）及離開（開閥 而使朝向貨射器供給之燃料之壓力保持為_ 閥時燃料係通過閥座8、、ά 十 幵 多餘燃料而排出，此自；至從燃料出口 2b作為 定二元？=?來說明本發明之主要部分之固 之保持。如前所述，鋼球9係藉由間彈菁 10 320133 200930894 11而彈推，藉此而使固定側閥單元23在殼體}内呈可擺 動狀態，因此，就可以提高與活動側閥單元22(閥座8)之 --隨順性，然而此時，從元件符號中亦可明瞭，係一面確保 從燃料入口 lb朝向連通孔8a之流路ld，一面將構成閥彈 簧U之裝設孔及鋼球9之滑接面之引導閥lc 一體形成於 殼體卜結果，固定側閥單元23相對於殼體！之同轴度即 變得極高，因此使得活動側—固定侧兩閥單元22、23之同 〇軸性亦同時如第3圖標示之中（線所示地保持於良好狀 態。另外’如第5圖如所示，固定側閥單元23係藉由以設 於殼體1之突起部16而歛縫固定之閥保持器12來保持於 如此，藉由將引導閥lc 一體形成於殼體丨，即不 將相當於引導間之構件固定於殼體1之内壁之際所必須之 段差，而使燃料順暢地流通，隨此即可獲得調壓性能優異 之壓力調節器。 、 © (實施形態2) 兹以將固定侧閥單元23保持於殼體持器Μ :固定方法之另一實施例作為實施形態2進行說明：另 -體SI:述雜由於殼體1係具有將引導閥1C及流路Id $成之《之形狀，因此若考慮加卫之 =樹脂或銘壓糾一心佳，其中因為樹脂： 考慮燃料所致之膨潤而生之尺寸變化，故以紹屋鵠為更 320133 11 200930894 佳。另一方面，鋁壓鑄在脆性（脆 之處。 注）方面尚有若干困難 因此’在本實施形態2中，係取 說明之窆故# t 乎'取代在貫施形態1中所 需要歛縫固定作業，故可提供可 口此不 器。 』罪f生更為提升之壓力調節 ❹ 另外，藉由將實施形態〗及2中 驴入撤也L μ灿m 又1于後刀過即态組 ^入H給裝置’即可提升所謂從燃料箱到喷射器之辦 枓供給糸統之響應性，具體而言’可獲得車輛駕駛在J 器操作時平順的加速。此係藉由本發明之壓力調節器，口才 可謀求更進一步之燃料壓力之一定化。 【圖式簡單說明】 第I圖係為本發明實施形態i之壓力調節器之 視圖。 I祝针 第2圖係為第丨圖之分解斜視圖。 第3圖係為第I圖之剖面圖。 第4圖係為第3圖之中殼體側之放大圖。 第5圖係為第4圖之a視圖。 第6圖係為本發明實施形態2之相當於第$圖之圖。 第7圖係為本發明實施形態2之相當於第5圖之圖。 【主要元件符號說明】 1 殼體 la 凸緣部 lb 燃料入口 lc 引導閥 320133 12 200930894200930894 IX. OBJECTS OF THE INVENTION: TECHNICAL FIELD The present invention relates to a fuel pressure regulator that is installed in a fuel tank of a wheel or the like for pressurizing fuel to an injector that injects fuel into an engine. Among the components of the fuel supply device (injector), the fuel pressure is adjusted to a value, and in detail, the internal structure of the fuel pressure (four) is used. ❹ [Prior Art] In order for the injector to inject the fuel required by the engine, the fuel pressure supplied to the injector must be kept constant. Therefore, it is generally known to provide a fuel pressure regulator under a fuel filter that is to be converted by a fuel pump and fuel. As an example of the fuel pressure regulator, the casing is separated by a partition into a pressure chamber and a back pressure chamber, and 2 is fixed to the partition and communicates between the two chambers. The movable valve body of the valve hole, the fixed partition between the ❹=force chamber side, and the spring provided in the back pressure chamber for the movable body seat & In this case, (4) the pressurized fuel flows into the pressure chamber, so that the diaphragm continuously moves at a position where the pressure of the pressure to the fuel pressure, the pressure of the disk, and the spring of the plate are balanced. In other words, the ten people "she called _ wrong by the anti-set between the two valve body σ and left, and the waiter to adjust the fuel back M W Α ^ 攸 tooth & to the discharge amount, and will be burned, for example, Patent Document D. The U's willingness is kept constant (see [Patent Document Le 96/Cai No. Bulletin (page 7 line 14 to 320133 6 200930894 page 9 line 7 and figure 1)] [Invention] Problem to be solved] - The fuel pressure regulator disclosed in New Patent Document 1 is a step-by-step method of separating a pressure chamber into a fuel inlet side and a partition by a fixed valve guide that maintains a fixed valve body. The side, the structure that makes the two communicate with each other, so I realize that it is a fuel supply device, and the component storage device is more expensive than the dance material that is to be discharged from the back pressure chamber. Directly returned to the fuel phase, and in the case of the fuel tank and the engine, the excess fuel is not, - - ΓΧ,, because of the heat of the engine, it can be suppressed in the fuel tank The generation of fuel vapor or air bubbles. I. In order to improve the performance of the fuel pressure regulator, it is necessary to increase the stability of the fixed valve body and the movable body * ^ ' • v... mountain / coaxiality. In Document 1, it is used to maintain the fixed valve guides for solid and solid bodies. Gt; 1 into the fixed β-axis degree of sub-virtualization will have the same performance deterioration between the valve body and the shell. In addition, the coaxiality of the private set is worse, the pressure-free and the ground with the seam (five) king ) and produce ^ difference ^ wall itself ' because it is incurable. The difference is therefore difficult to say that the fuel will flow smoothly. The invention is based on the above-mentioned problem. The purpose of the invention is to provide the coaxiality between the valve body (solid side unit) and the movable valve body. The fuel can be improved (4) (10) early (the solution to the problem) °. By. The fuel (four) force adjuster of the present invention comprises: a casing (CaSlng), a casing having a fuel inlet for inputting fuel from a fuel pump by 320133 7 200930894 and having a fuel for outputting fuel to the fuel pump The housing of the fuel outlet of the tank is constituted by a housing; the fixed side valve unit is slidably placed in the upper part of the housing; and the partition is fixed by fixing the housing and the housing Further, the inside of the casing is partitioned into a pressure chamber and a back pressure chamber; and the movable side valve unit is in contact with or separated from the fixed side unit; and a spring is provided to move the movable side valve unit toward the above The fixed side valve unit is in contact with the guide valve and a valve holder that allows the fixed side valve unit to swing at a predetermined position, and the guide line is integrally formed with the housing. [Effects of the Invention] As described above, the present invention can obtain a fuel pressure regulator excellent in pressure regulation performance, and as a result, a fuel supply device having good responsiveness can be provided. [Embodiment] (Embodiment 1) FIG. 1 is a perspective view of a fuel pressure regulator according to an embodiment of the present invention, and FIG. 2 is an exploded perspective view of a circle. In addition, the third picture is the first! Fig. 4 is a magnified view of the casing side in Fig. 3, and Fig. 5 is a view A of Fig. 4. As shown in Fig. 1, the 'fuel pressure regulator (hereinafter (4) force regulator (Press (regulator)) 1 (n, in its appearance, is composed of the housing ι and the housing 2, more specifically, will The flange portion h (see FIG. 2) of the casing 压 is press-fitted into the receiving portion of the seat shell 2 (see FIG. 2), and the front end 2al of the splicing portion 2a is bent inward and caulked. Thereby, the body of the case 320133 8 200930894 is fixed to the seat case 2 to function as a casing 21. The fuel inlet lb is formed in the casing 2, and the seat 2 is formed with a "port 2" (see the 3)) However, the fuel system flows on the paper surface from the top to the bottom as indicated by the arrow. In addition, the fuel system is generally known as a fuel pump and a fuel filter (both not shown). The pressurized filtered fuel will reach the fuel inlet lb, and thus the pressure regulator 1〇1 will maintain the pressure of the fuel supplied to the injector (not shown) at a predetermined value, and the excess fuel is discharged from the fuel. The outlet 2b is discharged. At this time, the pressure regulator ι〇ι ^ is provided, and the fuel supply device is installed in a fuel (not shown). Inside the box, the above-mentioned "added fuel" is directly returned to the fuel tank, and is again sucked and pressurized by the fuel pump. In addition, in order to make the power regulator i〇i liquid-tightly connected to the fuel a fuel supply line between the filter and the injector (for example, a fuel filter housing), and a housing type i is provided with a 〇-shaped ring 3. As shown in Fig. 2, in the cup 2 of the housing 2, The spring 4 having the convex portion 2cl provided on the bottom surface of the cup portion 2c and the spring guide 5 (see FIG. 3) which will be described later as the fuel flow path is not provided to interfere with the fuel. The outlet 2b. Although the magazine 4 is separated by the spring guide 5\, the partition 6 is pushed toward the upper side of the paper, but since the outer diameter of the partition 6 is substantially equal to the flange portion la, the above-mentioned one is fixed. The partition plate 6 is also fixed when the casing 丨 and the seat shell 2 are formed, that is, formed between the flange portion 1a and the bearing portion 2a, and the casing 21 is separated by the partition plate 6. It is 2 to. In the two chambers, the side above the paper surface of the partition β, that is, the side of the casing 1 is called a pressure chamber, and the lower side, that is, the side of the seat shell 2 is called Back pressure chamber. As shown in Fig. 3, in order to make the partition 6 follow the movement of the spring guide 5 caused by the spring 4's spring pushing 320133 9 200930894, the partition 6 is made by the spring guide 5 and the armature ( The aoiatures 7 are clamped, and the two members are fixed by caulking, etc. Here, the armature 7 is press-fitted into the valve seat of the cylindrical member so as to protrude from the surface of the armature 7. Seat), and the two chambers formed by the partitions 6 are connected by the communication holes 8a' of the partitions 8, and the fuel will flow from the pressure chambers to the back pressure chamber. The spring guide 5, the partition 6, the armature 7, and the body structure formed by the valve seat 8 are also referred to as the movable body of the patent document i as "the movable side valve 7 〇 2 2 | As shown in Figure 4, in the housing! The fixed side valve unit 23 is provided on the paper sheet by a downward spring force by a valve spring u. The fixed primary valve unit 23 is obtained by, for example, welding the steel ball 9 and the valve 1 ,. Home = Special: Literature] fixed valve body. In other words, the movable side-fixed side center is arranged in a relatively opposite manner, in particular, in the manner in which the inner seat 8 and the 阙1〇 of the casing are positioned opposite each other (see: 3rd) Figure). Therefore, as in the patent document, the fuel flows into the pressure diaphragm 6, that is, the 2 springs 4 which are subjected to the fuel pressure in the (10) force chamber are constantly moved at the position where the spring thrust in the back pressure chamber is balanced, By the way, the seat between the seat 8 and the valve 1 is closed (closed valve) and left (the valve is opened to keep the pressure of the fuel supplied to the cargo injector _ the valve is passed through the valve seat 8 , ά 10 Exhaust from excess fuel, from the fuel outlet 2b as a binary binary == to illustrate the maintenance of the main part of the present invention. As mentioned above, the steel ball 9 is made by the interluoscene 10 320133 200930894 11 and the push, whereby the fixed side valve unit 23 is swingable in the housing}, so that the compliance with the movable side valve unit 22 (seat 8) can be improved, but at this time, It is also apparent from the component symbols that the flow path ld from the fuel inlet lb toward the communication hole 8a is ensured, and the guide valve lc constituting the mounting hole of the valve spring U and the sliding surface of the steel ball 9 is integrally formed in the case. As a result, the coaxiality of the fixed side valve unit 23 with respect to the housing is extremely high, because The same axial axis of the movable side-fixed side two valve units 22, 23 is also maintained as shown in the third icon (the line is maintained in a good state. In addition, as shown in Fig. 5, the fixed side valve unit is as shown in Fig. 5 The 23 is held by the valve holder 12 which is caulked and fixed by the projection 16 provided in the casing 1, and the guide valve lc is integrally formed in the casing 丨, that is, the member corresponding to the guide is not formed. The pressure regulator that is excellent in the pressure regulation performance can be obtained by smoothly flowing the fuel while being fixed to the inner wall of the casing 1. Thus, (the second embodiment) Holding the housing holder Μ: Another embodiment of the fixing method will be described as a second embodiment: the other body SI: the housing 1 has a shape in which the pilot valve 1C and the flow path Id $ are formed. Therefore, if you consider the addition of resin = resin or good pressure, because of the resin: considering the dimensional change caused by the swelling caused by fuel, it is better to use Saufang as 320133 11 200930894. On the other hand, aluminum die-casting There are still some difficulties in brittleness (brittle. Note) In the second embodiment, the description is made to replace the need for the caulking and fixing operation in the first embodiment, so that it is possible to provide a delicious food. In addition, by removing the embodiment and the 2, it is also possible to increase the so-called supply from the fuel tank to the injector by adding the H to the device. The responsiveness, specifically, 'accelerates the acceleration of the vehicle driving during the operation of the J. This is the pressure regulator of the present invention, and the valence can be further optimized for the fuel pressure. [Simplified illustration] Figure I is a view of a pressure regulator of Embodiment i of the present invention. I wish pin 2 is an exploded perspective view of the second figure. Figure 3 is a cross-sectional view of Figure 1. Fig. 4 is an enlarged view of the casing side in Fig. 3. Figure 5 is a view of Figure 4a. Fig. 6 is a view corresponding to Fig. 0 of the second embodiment of the present invention. Fig. 7 is a view corresponding to Fig. 5 in the second embodiment of the present invention. [Main component symbol description] 1 Housing la Flange lb Fuel inlet lc Guide valve 320133 12 200930894
Id 流路 1 e If 凹部 2 2a 承接部 2al 2b 燃料出口 2c 2cl 凸部 3 4 彈簧 ,5 6 隔板 7 8 閥座 8a 9 鋼球 10 11 閥彈簧 12 13 環 21 22 活動側閥單元 23 101 燃料壓力調整器（壓力調節 突起部 座殼 前端 杯部 〇型環 彈簧導件 銜鐵 連通孔 閥 閥保持器 殼套 固定側閥單元 器）Id flow path 1 e If recess 2 2a receiving part 2al 2b fuel outlet 2c 2cl convex part 3 4 spring, 5 6 partition 7 8 valve seat 8a 9 steel ball 10 11 valve spring 12 13 ring 21 22 movable side valve unit 23 101 Fuel pressure regulator (pressure adjustment protrusion seat front end cup part 〇 type ring spring guide armature communication hole valve valve holder cover fixed side valve unit)
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