TW508412B - Trochoid pump - Google Patents

Trochoid pump Download PDF

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Publication number
TW508412B
TW508412B TW90129501A TW90129501A TW508412B TW 508412 B TW508412 B TW 508412B TW 90129501 A TW90129501 A TW 90129501A TW 90129501 A TW90129501 A TW 90129501A TW 508412 B TW508412 B TW 508412B
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TW
Taiwan
Prior art keywords
pump
volume
teeth
pump chamber
rotor
Prior art date
Application number
TW90129501A
Other languages
Chinese (zh)
Inventor
Tamio Kosugi
Original Assignee
Mitsuba Corp
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Publication of TW508412B publication Critical patent/TW508412B/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C14/00Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
    • F04C14/28Safety arrangements; Monitoring
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C11/00Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
    • F04C11/008Enclosed motor pump units
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00Rotary-piston machines or pumps
    • F04C2/08Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/10Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F04C2/102Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member the two members rotating simultaneously around their respective axes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/04Feeding by means of driven pumps
    • F02M37/08Feeding by means of driven pumps electrically driven

Abstract

A trochoid pump is constructed to suppress generation of a vapor lock phenomenon based on a rise in the fuel temperature without loss of pump efficiency. A deaerating hole H that communicates with the outside is formed on the groove bottom face 10e of the rotor casing in which a trochoid gear T is accommodated. The deaerating hole H is defined at a position that is closed by the front side edge of either one of inner and outer teeth 12a, 13a of inner and outer rotors 12, 13 in the direction of rotation. The inner and outer rotors arranged at the front side in the direction of rotation forms any one of the pump spaces PR that the trochoid gear T forms the maximum capacity. When the pump space PR is being reduced, vaporized fuel is exhausted.

Description

508412 A7 經濟部智慧財產局員工消費合作社印製 五、發明說明(1 ) [發明之詳細說明] [發明所屬之技術領域] 本發明所屬之技術領域係關於搭載車輛等之擺線泵 浦。 … [習知之技術] -般而言,做為提供燃料予車輛引擎之燃料栗浦有使 用擺線泵浦者,該擺線泵浦之構成係具備:將齒數不同之 内轉齒的外齒與外轉齒的内齒相咬合,使形成於兩轉齒齒 間之泵浦室的容積由於隨著内轉齒的回轉而產±外轉齒回 轉而逐漸產生容積變化之擺線齒輪;及與該擺線齒輪的一 側面自由回轉接觸,而使與前述泵浦室之容積逐漸增大成 為減壓狀態之一侧的一半部,形成於對向於該一半部位置 上之吸入口,以及形成於與泵浦室的容積逐漸減少側的另 一半部相對位置上之排出口的轉子外殼。而且,其構成方 式為,隨著兩轉子的回轉而泵浦室的容積逐漸增大吸入口 所吸入的燃料,隨著泵浦室的容積逐漸減少而由排出口排 出,泵浦即以此方式進行其作動。 另一方面,各泵浦室内充滿燃料,惟當泵浦的連續驅 動而燃料的溫度升高時,可能造成因燃料中的低沸點成分 汽化而產生空洞現象(cavitatl〇n)。當發生空洞現象時,泵 浦室内的液體燃料的容積變小,排出量也減少,更有甚者 排出量消失而產生汽封(vap〇r 1〇ck)的問題。於是傳統上有 如下之構成方案·如第7圖所示,將由内轉子I?及外轉子 1 8所構成之擺線泵浦以自由回轉之方式收容在轉子外殼 本紙張尺度適用中國_標準(CNS)A4規格⑽x 297公髮) 313126 (請先閱讀背面之注意事項再本頁) f 訂---------線· 508412 A7 五、發明說明(2 的凹溝部16中,在擺線泵浦T的一側面抵接轉子外殼凹 溝部16的底面16a,位於前述一半部,形成貫通外部之呈 彎曲長孔狀的貫通吸入口 16b的同時,位於另一半部,形 成具備貫通轉子外殼16之開口側之誘導路之彎曲長孔狀 之凹溝排出口 16c,在此種構造中,於排出口 16c的溝底 部形成貫通外部的脫氣孔16d,並藉由開16d來進行脫氣。 此外,在該構成中,係利用隨著形成於各轉子17、18的齒 輪17a、18a間的泵浦室PRr的容積逐漸減少而產生的高 壓’強制地將汽化燃料自脫氣孔j 6d排出。 [發明所欲解決之課題] 然而,因前述之傳統脫氣孔16d形成於面向高壓侧之 排出口 16c的溝底部,因此當燃料溫度維持常溫狀態,在 不發生空洞現象之-般的使用狀態下,燃料將由脫氣孔 16d強制地排出於外部。結果,隨著前述燃料排出量的多 寡,泵浦性能隨之降低,為了確保必要的排出量擺線果浦 必須作成高輸出化,於是發生高電力消費、擺線泵浦大型 化等問題。本發明之目的即在於解決上述之問題。 此外’因脫氣孔16d係開設於高壓侧之故,脫氣孔⑹ 的孔徑大小將對泵浦的效率造成極大的影響,當孔徑的精 度不足時泵浦性能必然會產生差異,如此將造成產品信賴 性受損等其他的問題,而此乃本發明所應解決之課題。 [解決課題之手段] 鑑於上述之情況,本發明之目的在於解決前述之課 題’乃提供;種擺上此擺線泵浦具備:將齒數不同 本紙張尺度_巾關家鮮格⑵“297 313126 (請先閱讀背面之注咅心事項再本頁) ---------訂·--------線卜 經濟部智慧財產局員工消費合作社印製 2 508412 A7 經濟部智慧財產局員工消費合作社印製 五、發明說明(3 ) 齒的外齒與外轉齒的内齒相咬合,利㈣著内轉齒 二轉而產生外轉齒回轉,而使形成於兩轉齒齒間之栗浦 =積逐漸產生變化之擺線齒輪;及與該擺線齒輪 回轉而接觸’而使與前述泵浦室之容積逐漸增大成 為減壓狀態之一側的一半部,彤 成 ,^ a 形成於對向於該一半部位置 :吸入口,以及形成於與泉浦室的容積逐漸減少側的另 :丰部相對位置上之排出口的轉子外殼之擺線栗浦,1 味於刖述轉子外殼形成脫氣孔以排出果浦室内汽化之姆 2時’將該脫氣孔配置於前述排出口之轉子回轉方向的正 同時,在配合成為最大容積之果浦室開始減少容積 之時序與該泵浦室連通之位置。 於是可利用上述之方式,可將高、、w * 率地排出。 了將-皿、>飞化之燃料有效 上述發明之裝置中,形成於本發明之外轉殼子一半部 之吸入口 ’其構成方式可為當泵浦室為最大容積時配合該 時間中斷與該泵浦室間之貫通狀態。 ,此外,在上述所發明之裝置中,本發明之脫氣孔可配 置亚形成於内轉子的外徑部位。[發明之實施形態] 以下’依照第i圖至第5圖之圖自,說明本發明之實 施形態。 圖中,1冑内裝於燃料槽做為燃料泵浦之擺線果浦, 在構成該擺線栗浦!的筒狀殼體2中,内裝有馬達部^ ^及配置於該馬達部Μ的另一端側之泵浦部Ρ。構成前述. 本紙張尺度適用中國國家標準(CNS)A4規格(21〇 χ 297公髮 3 313126 (請先閱讀背面之注意事項再S本頁) 0 訂---------線· 五、發明說明(4 ) 達部Μ之馬達輛3,在 係以與殼體2同芯的方夫s罟,甘 端部係以自由回轉之太h 幻方式配置,其- 方式軸承於遮蓋體4, 則以覆蓋該開口的方★ mi 而該覆盍體4 方 工口疋在殼體2的一端側開口。另一 方面,馬達軸3的另一 ★山如 ^ r, Μ 鳊部,則在貫通貫通孔5a的狀態下 鬥綠Μ 支撐’其中該貫通孔5a係被開設於以 圍、、% 口疋於双體3之内周面 面的方式权置,以區隔馬達部Μ 與泵浦部Ρ的區隔板5 並使馬達軸3之一另一段向泵 庸至Ρ側突出。6 # i由一麻 、 〃 體配置在馬達軸3,由線圈捲裝 而成之電樞鐵心,而在電施 牧电抱鐵心6的一端侧的馬達軸3上 固疋有圓板狀之整流子7。 泣 4整丨L子7的一端側面固定有 複數的整流片7a,於前诫、疮装μ j a ^ %則迹遮盍體4中,朝馬達轴3之方向 自由伸縮配置的雷屈丨丨9从& 冤席1 8的大出先端部以彈壓狀設置成滑動 接觸之形癌、Λ外’遮蓋體4中,配置有用以供應電源給 電刷8之外淖引出用端子,此外後述之燃料排出口 ‘a 在^通外部的狀態下被予以開設。而殼體2的内周面中, 固疋有用以形成磁路之永久磁鐵9,而馬達軸3則被設定 為在經由電刷8將電源提供至整流子7的同時,可與電柩 鐵心6進行一體回轉的形式。 構成前述栗浦部P之轉子外殼1〇,具備有覆蓋殼體2 之另一端侧開口之遮蓋體的功能,將圓板狀的外周緣部 1 〇a内嵌於殼體2的另一端側開口,藉由鉚壓該内嵌部位 的殼體2,設定將其以封止狀固定於殼體。前述轉子外殼 10,其内侧面(一端側面)形成有圓形狀之凹溝部10b,但該 凹溝部的溝中心G與轉子外殼1 〇的圓中心R以偏芯之狀 (請先閱讀背面之注意事項再本頁) ;#________^_________ 經濟部智慧財產局員工消費合作社印製 本紙張尺度適用中國國家標準(CNS)A4規格(21〇 297公釐) 4 313126 A7 B7 五、發明說明(5 ) 經 濟 部 智 慧 財 產 局 員 工 消 費 合 作 社 印 製 恶形成。此外,前述凹溝邱 # 1 〇b的溝側面中定子1 1以内嵌 狀一體固定,在該定子& 、 1的内周中擺線齒輪以可自由回轉 之方式被收納。在前述凹潘 w溝部1Ob的溝底面l〇c中,軸受 部10d,在與轉子外殼1〇 的圓中心R同芯的狀態下,以凹 設於另一端侧的狀態形成, /風’而由前述馬達軸3的區隔板5 突出於泵浦部P侧之另一嫂郝 Βί ^ 、 、°卩’則設定為以抵接狀軸承於 該軸承部1 〇 d。 A此外在轉子外设10的前述凹溝部溝底面10c中,如 第3圖所不,位於轉子外殼10與凹溝部1 Ob間共同的中心 線Μ的右半部(相當於本發明之一半部),形成有彎曲長孔 狀之吸入口 l〇e。該吸入口心,將溝底面切成貫通狀 以貫通轉子外豸10 #内外之狀態形成,燃料槽内燃料藉由 吸入口 1〇e以貫通擺線泵浦1之内部。 此外,在位於前述中心線M的左半部(相當於本發明 之另半部)之溝底面l〇c中,形成有凹設之彎曲長孔狀排 出口 1 〇f。在該排出口 1 〇f的外徑側以一體成形之方式凹設 有至凸輪11外徑侧之誘導路l〇g。此外,10h將燃料引導 至轉子外殼的吸入口 1〇e,其為成形於吸入口 1〇e外面側 (另一端側面)之突出之喇叭狀的燃料引導體。 另一方面’構成擺線泵浦T之内轉子12其外周形成 有複數的外齒12a,而在本實施形態中該外周的四周方向 、/成有6個外齒。此外,内轉子12,另一端側面在以自 由回轉之方式底接轉子外殼溝底面l〇c的狀態下被收容於 丨凹;冓口P 10b ’在其回轉中心中,突出於泵浦部P侧之 (210 X 297 -- 5 313126 (請先閱讀背面之注咅?事項再本頁) t 訂---------線· A7 B7 五、發明說明(6 經 濟 部 智 慧 財 產 局 員 工 消 費 合 作 社 印 製 輛3的另一端部以停止回轉狀加以固定(鍵嵌合卜將轉子 外臧1 〇的圓中心R為回轉中心,並將其設定與馬達軸3 為同芯狀以進行一體回轉。此外,外轉子13之内周形成有 複數的内齒13a,在本實施形態中於該内周的一周形成有7 個内齒。此外,外轉子13,另一端側面在以自由回轉之方 式底接溝底面1 Oc的狀態下内嵌於凹溝部1 〇b,藉此,外 轉子13將與馬達軸3(内轉子12)係設定成以偏芯之凹溝部 l〇b的溝中心G為回轉中心而回轉。此外,内轉子12的外 齒12a與外轉子13的内齒13a,在第3、4(a)圖中於下半 部相咬合,設定成當内轉子回轉時12,外轉子13亦隨之 回轉之形態。 此外,收藏於凹溝部10b之内、外轉子12、13(擺線 齒輪τ)的一端侧面中,至外轉子13的外周以突起狀配置 封止板14,藉由配置於區隔板5間彈簧材料15,將擺縣齒 輪τ推壓於轉子外殼的1〇的溝底面i〇c側。藉此,在内、 外齒12a、13a之間,利用外轉子之溝底面i㈧及封止板w 於周的四周方向形成6個兩侧面被包圍之泵浦室pR,該各 泵浦室PR,隨著擺線齒輪τ的回轉前述兩侧面在逐漸產 生容積變化的同時回轉移動。 亦即,上述之泵浦室PR,在第4圖(Α)中位於下端部 2容積呈最小容積狀態,而位於上端部時容積變換為最大 容積。此外,在本實施形態中,擺線齒輪τ,在第4圖⑷ 中以反時針的方向回轉’藉此,朝著凹溝部議的圖面在 右半^擺線齒輪τ的回轉泵浦室1^的容積逐 本紙張尺度準(CNS)A4規格⑽χ 297公昼- 、研 (請先閱讀背面之注意事項再本頁)508412 A7 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs. 5. Description of the invention (1) [Detailed description of the invention] [Technical field to which the invention belongs] The technical field to which the present invention pertains is the cycloid pump for carrying vehicles and the like. … [Known technology]-Generally speaking, as a fuel that provides fuel to vehicle engines, there are those who use cycloidal pumps. The composition of the cycloidal pumps includes external teeth that rotate the internal teeth with different numbers of teeth. Mesh with the internal teeth of the external teeth, so that the volume of the pump chamber formed between the teeth of the two rotating teeth is gradually changed due to the rotation of the internal teeth and the external teeth rotate; A half-rotational contact with one side of the cycloidal gear is made to gradually increase the volume with the pump chamber to one side of the decompression state, and is formed at the suction port opposite to the half-position, and A rotor housing formed at a discharge port opposite to the other half of the gradually decreasing volume side of the pump chamber. In addition, the structure is such that the volume of the pump chamber gradually increases with the rotation of the two rotors, and the fuel sucked in by the suction port is gradually discharged from the discharge port as the volume of the pump chamber gradually decreases. Carry out its action. On the other hand, each pump chamber is filled with fuel, but when the temperature of the fuel increases due to continuous driving of the pump, cavitation may occur due to the vaporization of low-boiling components in the fuel. When the cavitation occurs, the volume of the liquid fuel in the pump chamber becomes smaller, and the discharge volume is reduced. Furthermore, the discharge volume disappears, which causes a problem of vapour sealing. Therefore, traditionally there are the following construction schemes: As shown in Figure 7, a cycloidal pump composed of the inner rotor I? And the outer rotor 18 is housed in the rotor housing in a freely rotating manner. CNS) A4 specification ⑽ x 297 public hair) 313126 (Please read the precautions on the back first and then this page) f Order --------- line · 508412 A7 V. Description of the invention (in the groove 16 of 2), One side of the cycloidal pump T abuts on the bottom surface 16a of the rotor housing recessed groove portion 16, is located in the aforementioned half, and forms a curved long hole-shaped through suction inlet 16b penetrating through the outside, and is located on the other half, and is provided with a through rotor The curved long hole-shaped groove discharge port 16c of the induction path on the opening side of the casing 16 is formed with a deaeration hole 16d penetrating to the outside at the groove bottom of the discharge port 16c, and is deaerated by opening 16d In addition, in this configuration, the high pressure generated by gradually decreasing the volume of the pump chamber PRr formed between the gears 17a and 18a of each rotor 17, 18 is used to forcibly discharge the vaporized fuel from the deaeration hole j 6d. [Problems to be Solved by the Invention] Because the aforementioned traditional degassing hole 16d is formed at the bottom of the groove facing the high-pressure-side exhaust port 16c, when the fuel temperature is maintained at normal temperature, the fuel will be forcibly discharged through the degassing hole 16d in a normal use state where no cavity phenomenon occurs. As a result, with the increase of the aforementioned fuel discharge, the pumping performance will decrease. In order to ensure the necessary discharge, the cycloid must be made high-output, so high power consumption and large-scale cycloid pumps have occurred. Problem. The purpose of the present invention is to solve the above problems. In addition, 'because the deaeration hole 16d is opened on the high pressure side, the size of the deaeration hole ⑹ will greatly affect the efficiency of the pump. When the accuracy of the hole diameter is insufficient The pump performance will inevitably be different, which will cause other problems such as impaired product reliability, and this is the problem to be solved by the present invention. [Means for Solving the Problem] In view of the above-mentioned circumstances, the object of the present invention is to solve the aforementioned problems. The subject is provided; this kind of cycloidal pump is equipped with: the number of teeth is different from the paper size _ 巾 关 家 鲜 格 ⑵ "297 313126 ( (Please read the note on the back, and then this page) --------- Order · -------- Printed by the Consumers ’Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 2 508412 A7 Intellectual Property of the Ministry of Economic Affairs Printed by the Bureau ’s Consumer Cooperatives. 5. Description of the invention (3) The external teeth of the teeth are engaged with the internal teeth of the external rotating teeth. Kuriura = Cycloidal gears that gradually change in volume; and in contact with the cycloidal gears to make contact with the cycloidal gears, and gradually increase the volume with the aforementioned pump chamber to one half of the decompression state, Tong Cheng, ^ a is formed at the position opposite to the half: the suction port, and the cycloid of the rotor housing, which is formed on the side of the volume relative to the Izumiura chamber, gradually decreases. It is described that when the rotor casing forms a deaeration hole to discharge the vaporized MU 2 in the Guopu room, 'the deaeration hole is arranged at the same time as the rotor rotation direction of the discharge port, and the timing and The pump chamber is in a connected position. Therefore, the above-mentioned method can be used, and high, and w * rates can be discharged. In the device of the invention described above, which is effective for flying fuel, the suction port formed in the half of the outer shell of the present invention is configured in such a way that when the pump chamber has the maximum volume, the time is interrupted. And the pumping chamber. In addition, in the device of the present invention described above, the degassing hole of the present invention may be configured to be formed in the outer diameter portion of the inner rotor. [Embodiment of the invention] Hereinafter, an embodiment of the present invention will be described in accordance with the drawings of Figs. I to 5. In the picture, 1 胄 is installed in the fuel tank as a cycloid guopu of the fuel pump. The cylindrical case 2 includes a motor portion ^ ^ and a pump portion P disposed on the other end side of the motor portion M. Constitute the foregoing. This paper size applies the Chinese National Standard (CNS) A4 specification (21〇χ 297 Public 3 3 313126 (Please read the precautions on the back before S page) 0 Order --------- line · V. Description of the invention (4) The motor vehicle 3 of Dabu M is arranged in a square shape with the same core as the housing 2, and the end of the gantry is arranged in a magical way of free rotation, and its bearing is in the cover The body 4 is covered with a square ★ mi and the cover 4 is opened at one end of the housing 2. On the other hand, the other mountain of the motor shaft 3, such as ^ r, Μ , The bucket green M is supported in a state of penetrating the through-hole 5a, wherein the through-hole 5a is opened in a manner to surround the inner peripheral surface of the double body 3 with a thickness of 0.1% to separate the motor portion. Μ and the partition plate 5 of the pump section P, and one of the other sections of the motor shaft 3 protrudes to the pump side to the P side. 6 # i is made of a hemp and cymbal body arranged on the motor shaft 3 and is wound by a coil. The armature core, and a disk-shaped commutator 7 is fixed to the motor shaft 3 on one end side of the electric power holding core 6. Streaming piece 7a, in the former commandment, sorely installed μ ja ^% trace cover body 4, Lei Qu freely telescopically arranged in the direction of the motor shaft 3 丨 丨 9 from & In the form of a sliding contact-shaped cancer, Λ outer 'covering body 4, a terminal for supplying power to the brush 8 is provided, and a fuel discharge port' a described later is provided in a state where it is open to the outside. The inner peripheral surface of the casing 2 is fixed with a permanent magnet 9 which is used to form a magnetic circuit, and the motor shaft 3 is set to supply power to the commutator 7 through the brush 8 while being connected to electricity.柩 The iron core 6 is integrally rotated. The rotor housing 10 constituting the aforementioned Ripo section P has a function of covering the opening at the other end side of the housing 2, and a disc-shaped outer peripheral edge portion 10a is embedded. The other end of the casing 2 is opened, and the casing 2 with the embedded portion is riveted to be fixed to the casing in a sealed shape. The rotor casing 10 has a circular shape on its inner side (one end side). Shape groove portion 10b, but the groove center G of the groove portion and the circle center R of the rotor housing 10 Eccentricity (please read the precautions on the back and then this page); # ________ ^ _________ Printed on the paper by the Consumers' Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, the paper size applies to China National Standard (CNS) A4 (21,297 mm) 4 313126 A7 B7 V. Description of the invention (5) The employee cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs printed a bad print. In addition, the stator 11 in the groove side of the aforementioned grooved groove Qiu # 1 〇b is integrally fixed in an embedded shape, and is fixed on the stator. &, 1 Cycloidal gears are housed in a freely rotatable manner in the inner periphery. In the groove bottom surface 10c of the groove 10b, the shaft receiving portion 10d is formed in a state of being recessed on the other end side in the same core as the circle center R of the rotor housing 10, and The other partitions 5 protruding from the motor shaft 3 above the P-side of the pump section P, 、, 卩, ′ ′ are set to the bearing section 10 d with abutting bearings. A In addition, in the groove bottom surface 10c of the groove part 10 of the rotor peripheral device, as shown in FIG. 3, it is located on the right half of the center line M that is common between the rotor housing 10 and the groove part 1 Ob (equivalent to one half of the present invention). ), A curved long hole shaped suction port 10e is formed. This suction inlet is formed by cutting the bottom surface of the groove into a penetrating shape so as to penetrate the inside and outside of the rotor outer casing 10 #. The fuel in the fuel tank passes through the suction inlet 10e and penetrates the inside of the cycloidal pump 1. Further, in the groove bottom surface 10c located on the left half of the centerline M (equivalent to the other half of the present invention), a concave curved long hole-shaped discharge port 10f is formed. An induction path 10 g to the outer diameter side of the cam 11 is recessed in an integrally formed manner on the outer diameter side of the discharge port 10 f. In addition, the fuel is guided to the suction port 10e of the rotor casing at 10h, which is a protruding horn-shaped fuel guide body formed on the outer side (side surface of the other end) of the suction port 10e. On the other hand, the inner rotor 12 constituting the cycloid pump T has a plurality of external teeth 12a formed on its outer periphery, and in this embodiment, six outer teeth are formed in the peripheral direction of the outer periphery. In addition, the inner rotor 12 is housed in a recess in a state where the other end side thereof is bottom-connected to the bottom surface of the rotor casing groove 10c in a freely rotating manner; the opening P 10b ′ protrudes from the pump portion P in its center of rotation Side (210 X 297-5 313126 (Please read the note on the back? Matters on this page first) t Order --------- Line · A7 B7 V. Description of Invention (6 Intellectual Property Bureau, Ministry of Economic Affairs Employee Consumer Cooperative Co. prints the other end of the car 3 and fixes it in a stop-rotation state (key fitting: set the circle center R of the rotor outside 10 as the rotation center, and set it to be in the same core shape with the motor shaft 3 to perform Integral rotation. In addition, a plurality of internal teeth 13a are formed on the inner periphery of the outer rotor 13. In this embodiment, seven inner teeth are formed on one circumference of the inner periphery. In addition, the outer rotor 13 has a side surface that rotates freely. The bottom of the groove is connected to the groove bottom surface 1 Oc in a state of being embedded in the groove portion 10b, whereby the outer rotor 13 and the motor shaft 3 (inner rotor 12) are set to a groove with an eccentric groove portion 10b. The center G is the center of rotation and turns. In addition, the outer teeth 12 a of the inner rotor 12 and the inner teeth 13 of the outer rotor 13 a, in the lower half of Figs. 3 and 4 (a), the outer rotor 13 is rotated when the inner rotor 12 rotates. In addition, the inner and outer rotors are stored in the groove 10b. On one side of 12, 13 (cycloidal gear τ), the sealing plate 14 is disposed in a protruding manner to the outer periphery of the outer rotor 13 and the cycloidal gear τ is pushed by the spring material 15 disposed between the partition plates 5. The groove bottom surface ioc side of 10 of the rotor housing. By this, between the inner and outer teeth 12a, 13a, the outer rotor groove bottom surface i㈧ and the sealing plate w are used to form six two side surfaces. Surrounding pump chambers pR, each of the pump chambers PR rotates while gradually changing the volume as the cycloid gear τ rotates. That is, the above-mentioned pump chambers PR are shown in FIG. 4 ( A) The volume at the lower end 2 is in the minimum volume state, and the volume is converted to the maximum volume when it is at the upper end. In addition, in this embodiment, the cycloid gear τ is turned counterclockwise in FIG. With this, the volume of the rotary pump chamber 1 ^ of the cycloid gear τ in the right half of the drawing of the groove section is gradually calculated. Paper-scale quasi (CNS) A4 size ⑽χ 297 public day - and research (please re-read the notes on the back of this page)

I ---------^. 6 313126 A7 B7 五、發明說明( 增加而為減壓領域,在相對於與該 燃料槽内的燃料藉由吸入口 1〇e—邊?各泵浦室pR中’ 浦室-的燃料容積逐漸增加。盘=;;入=回轉,而泵 的圖面在左半部中,隨著擺線齒輪此^ 容積逐漸減少而為高㈣域,藉此H浦室&至^的 出口 i〇f—邊排出—邊 藉由排 ^ /h ^ 锝而泵浦室PR的燃料容積逐 漸減厂因此’自杲浦室PR所排出的燃料,通 出口 i〇f之誘導路10g被誘導至轉子 〇 連通排 隔板5側)的外徑側,之後 ^ 、端側(區 側之後,經由貫通區隔板5的圓板面而 開設之開口 5b流入馬達部M側’流入該馬達部以側之燃 料’經由形成遮蓋體之燃料排出口物由擺線泵浦】排出至 被供給體側。 在此,利用第5圖說明内、外轉子12、13的位置(果 浦至的位置)與确述吸入口 j 〇e、排出口 j 〇f間的形成位置 關係,該第5圖⑷顯示,任意之果浦冑pR位於上端部, 而泵浦室PR的容積變為最大時之位置關係之最大容積狀 悲’在该狀態下將最大容積之泵浦室PR為第1泵浦室PR1 加以說明,此外,隨著回轉方向之泵浦室為第二、第三、 第四、第五、第六、第七泵浦室PR2、PR3、PR4、PR5、 PR6而加以說明。在該最大容積狀態下,吸入口 1 〇e形成 與第五、第六泵浦室PR相對向,而不與第一及第四泵浦 室PR1、PR4相對的大小,吸入口 i〇e的兩轉子12、13的 回轉方向先端侧緣部,係延伸至第六泵浦室PR6及第一泵 ,浦室PR1之間,並延伸形成為在泵浦室PR達到最大容積 本紙張尺錢財關家鮮(CNS)A4娜(21G χ --' 事 s 線 7 313126 經濟部智慧財產局員工消費合作社印製 8 508412 ---^_ B7 五、發明說明(8 ) 前的階段上開口。難t 稽此,吸入口 1〇e,配人k立 PR為最大容積時之該 ^ 配合任意之泵浦室 中斷之狀態,而設定成Pa1 ’ 4任意的果浦室PR間的連通 狀態。 泵浦至PR1内部不會形成減壓 另一方面,排出口 10f,與 PR2、PR3、PR4相一第二、第四泵浦室 邳對向,而棑出口 10f的回轉 緣部,形成到達第二泵、、卜間轉方向刖方側 4 ^ Γ7 /至PR2的中央部之大小。_此, 设定最大容積之任音今、老6乃 藉此 W果潘至pR,在經過自容 對應到達第二泵浦室PR2 、 v …士 對應位置之則的排出口 1 Of的預 定時間後’泵浦室可與排出口 相連通。 此外,在前述轉子外殼10之溝底面1〇c,於前述最大 容積狀態下,脫氣孔Η以貫通 貝通外邵的狀態形成於由構成第 m PR1之回轉方向先端側的内、外轉子12、13的 内、外齒12a、13a的任一方的回轉方向前側緣部所堵塞# 部位。該脫氣孔Η係以小口徑形成,而配合自前述最大溶 積狀悲擺線齒輪Τ稍微回轉之時間而開口,亦即,設定成 隨著形成最大容積之任意泵浦室PR之容積的縮小而與該 任意的泵浦室PR連通(第5圖(B))。在此順便說明,本實 施开> 態中,脫氣孔Η係形成於,溝底面i 〇c之,較構成最 大泵浦室PR之回轉方向先端侧的内齒13a的齒先部與外 齒12 a的齒先部間的抵接部近旁之杜塞部位,具體而言, 係形成於相當於内轉子外齒12 a之外徑端部之部位。再 且’脫氣孔Η係位於排出口 1 Of的回轉方向前侧,同時其 與排出口 1 Of間以存有一定間隔的形態形成。 本紙張尺度適用中國國家標準(CNS)A4規格(210 X 297公釐) 313126 41^ ^-------- (請先閱讀背面之注意事項再頁) •線· 五、 發明說明( 藉此’泵浦室PR中積存汽化燃料時,該汽化燃料由 脫氣孔Η排出,但此時,因脫氣孔η係在泵浦室pr容積 減少達到尚壓領域的狀態下連通,因此汽化燃料在承受正 在減少容積之壓力的狀態下自泵浦室Pr排出,由脫氣孔Η 排出汽化燃料的性能大幅提高。再且,在本實施形態之脫 氣孔Η,係位於形成於溝底面l〇c左半部的高壓領域側之 排出口 1 Of的轉子回轉方向的前方側,同時,其中間設有 定之間隔,因此如前所述擺線泵浦T由前述最大容積狀 恕回轉,在連通泵浦室PR及脫氣孔Η後,在一定時間内 維持泵浦室PR及脫氣孔Η間的連通狀態回轉,之後,泵 浦室PR與排出口 10f相連通(第5圖(〇),而設定成抑止 由脫氣孔Η的排出的狀態下。藉此,僅在一定的時間内, 確保脫氣孔Η有效發揮排出魏,以碟實進行脫氣孔η的 汽化燃料的排出。 此外,前述所定時間,可藉由調整脫氣孔Η與排出口 l〇f的回轉方向前側緣部間的距離而適當地設定。 以上述之敘述所構成之本發明的實施形態中,擺線泵 浦1,利用隨著馬達部M的回轉而產生之擺線齒輪τ的回 轉,將燃料槽的燃料由轉子外殼10的吸入口 10e流入泵浦 至PR,再將該泵浦室PR内的燃料經由排出口 i〇f、區隔 板5的開口 5b排出至馬達部M側,之後,由形成於擺線 泉浦1的遮蓋體4 $ — w u , 之燃料排出口 4 a排出於外部,此即為利 用擺線系^浦以進行^ 哭仃燃枓的供應方式。此外,在上述之構成 中,因擺線泵浦1 & ;奎_& _連續運轉而導致燃料的產生高溫並發 以張尺度+0 313126 ----------------T c請先閱讀背面之注意事項再本頁) ------線. 經濟部智慧財產局員工消費合作社印製 9 A7I --------- ^. 6 313126 A7 B7 V. Description of the invention (Increasing and reducing the pressure field, in relation to the fuel in the fuel tank through the suction port 10e-side? Each pump The volume of fuel in the 'Umuro-' in the puramium pR gradually increases. Disk = ;; In = rotation, and the pump's drawing is in the left half. As the cycloid gear's volume gradually decreases, it becomes a high volume. This H pump chamber & to the outlet i0f-while draining-while exhausting the fuel volume of the pump chamber PR gradually decreases by ^ / h ^ 因此 Therefore, the fuel discharged from the pump chamber PR is The induction path 10g of the outlet i0f is induced to the outer diameter side of the rotor 0 communicating row partition 5 side, and then ^, the end side (after the zone side, the opening 5b opened through the circular plate surface penetrating the zone partition 5) The inflow motor portion M side 'fuel flowing into the motor portion side' is discharged by the cycloid pump through the fuel discharge port forming the cover to the object to be supplied side. Here, the inner and outer rotors 12 will be described using FIG. 5. The positional relationship between the positions of 13 and 13 (the position of Guopu to) and the confirmation of the formation position between the suction port j 〇e and the discharge port j 〇f. The maximum volume of the positional relationship when the volume of the pump chamber pR is located at the upper end and the volume of the pump chamber PR becomes maximum is described below. In this state, the pump chamber PR with the largest volume will be described as the first pump chamber PR1. In addition, it will be explained that the pump chambers in the turning direction are the second, third, fourth, fifth, sixth, and seventh pump chambers PR2, PR3, PR4, PR5, PR6. In this state of maximum volume Next, the suction port 10e is formed to face the fifth and sixth pump chambers PR, but not to the first and fourth pump chambers PR1 and PR4. The two rotors 12, 13 of the suction port ioe The apex side edge of the direction of rotation extends between the sixth pump chamber PR6 and the first pump and the pump chamber PR1, and extends to form a maximum volume in the pump chamber PR. A4 娜 (21G χ-'s s line 7 313126 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 8 508412 --- ^ _ B7 V. Description of the invention (8) Open before the stage. Difficult to check, inhale Mouth 10e, when this is set to a maximum volume of PR, it is set to Pa1 in cooperation with any interruption of the pump chamber. 4. The connection state between any of the Guopu chambers PR. Pumping to PR1 will not cause decompression. On the other hand, the discharge port 10f is opposite to PR2, PR3, and PR4. The second and fourth pump chambers 邳 face each other. On the other hand, the turning edge of the exit 10f is formed to reach the center of the second side of the second pump, and the direction of rotation between the sides 4 ^ Γ7 / to the central portion of PR2. _ Here, set the maximum volume of any sound of Jin, Lao 6 Nai In this way, the pump chamber can communicate with the discharge port after a predetermined time after the self-capacitive correspondence reaches the discharge port 1 Of where the second pump chamber PR2, v, ... corresponding position is reached. In addition, in the groove bottom surface 10c of the rotor housing 10, in the state of the maximum volume, the deaeration hole Η is formed in the inner and outer rotors 12 formed in the state of penetrating the outer side of the beton through the front end side in the turning direction of the m-th PR1. Any of the inner and outer teeth 12a, 13a, 13a, 13a is blocked by the front edge portion in the turning direction. The degassing hole is formed with a small caliber, and is opened in accordance with the time of a slight rotation from the aforementioned maximum dissolved trochoidal gear T, that is, set to decrease with the volume of any pump chamber PR forming the maximum volume. It communicates with this arbitrary pump chamber PR (Fig. 5 (B)). By the way, in the present embodiment, a degassing hole is formed on the groove bottom surface i 0c, which is greater than the tooth front and outer teeth of the inner tooth 13a on the apex side of the turning direction of the largest pump chamber PR. The Dousser portion near the contact portion between the tooth advance portions of 12 a is specifically formed at a portion corresponding to the outer diameter end portion of the outer rotor inner tooth 12 a. Furthermore, the 'deaeration hole' is located on the front side in the turning direction of the discharge port 1 Of, and at the same time, it is formed with a certain interval between the discharge port 1 Of. This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) 313126 41 ^ ^ -------- (Please read the precautions on the back first and then the page) • Line · V. Description of the invention ( In this way, when the vaporized fuel is accumulated in the pumping chamber PR, the vaporized fuel is discharged through the deaeration hole ,, but at this time, the deaeration hole η communicates in a state where the volume of the pump chamber pr is reduced to a level under pressure, so the vaporized fuel Under the pressure of reducing the volume, it is discharged from the pump chamber Pr, and the performance of discharging vaporized fuel through the deaeration hole Η is greatly improved. Furthermore, the deaeration hole Η in this embodiment is located on the bottom surface of the groove 10c. The left half of the high-pressure field side discharge port 1 Of is forward of the rotor in the direction of rotation, and at the same time, there is a fixed interval in the middle. Therefore, the cycloidal pump T is rotated from the above-mentioned maximum volume, as described above. After the pump chamber PR and the deaeration hole Η, the communication state between the pump chamber PR and the deaeration hole 回转 is maintained for a certain period of time. After that, the pump chamber PR is connected to the discharge port 10f (Figure 5 (〇), and set In a state where the discharge from the deaeration hole is suppressed In this way, only in a certain period of time, it is ensured that the deaeration hole Η effectively discharges Wei, and the vaporized fuel of the deaeration hole η is discharged with a dish. In addition, the predetermined time can be adjusted by adjusting the deaeration hole Η and the exhaust port l. The distance between the front edge portions in the direction of rotation is set appropriately. In the embodiment of the present invention configured as described above, the cycloidal pump 1 uses a cycloidal gear that is generated as the motor portion M rotates. At τ rotation, the fuel in the fuel tank is pumped into the PR from the suction port 10e of the rotor housing 10, and the fuel in the pump chamber PR is discharged to the motor through the discharge port i0f and the opening 5b of the partition plate 5. Part M side, after that, the fuel outlet 4 a formed by the cover 4 $ — wu formed in the cycloid spring 1 is discharged to the outside. In addition, in the above-mentioned structure, the high temperature of the fuel is generated due to the continuous operation of the cycloidal pump 1 & 奎 _ & _ and the scale is +0 313126 ----------- ----- T c Please read the notes on the back before this page) ------ line. Ministry of Economic Affairs wisdom Property Office employees consumer cooperatives printed 9 A7

313126 10 A7 B7 五、發明說明( 11 經 濟 部 智 慧 財 產 局 員 消 費 合 作 社 印 製 下’排出量會隨著溫度的提高而逐漸降低,而 形態之擺線泉浦1的降低率則可維持在傳统之擺線2施 降低率的大約一半程度,@ ,擺、線泵浦的 ^ ^ 寸該排出量的降低,當揪料、、θ 度在6°度時’相當於隨著燃料溫度的上昇而產生::酿 故不會產生擺線泵浦1排出量降低的情況。 此外,本發明並不限宏义 :則述之實施形態,脫氣 形成位置’配合最大容積之栗浦室開始減少容積,=在第$圖⑷中,其亦^3 於/口著構成琅大谷積之泵浦室 的内齒及外轉子的外齒的回;=:向先端側的内轉子部位 褥方向正前側的周緣部的任何[圖面之簡單說明]第1圖為擺線栗浦之部份剖面侧面圖。 第2圖(A)及(B)分別為第1圖的正面圖與背面圖。第3圖⑷及(B)分別為轉子外殼的背面圖、第 的X-X剖面圖。 第4圖(A)及(B)分別為擺線果浦的正面圖、帛4圖 的X-X剖面圖。第5圖(A)至(C)刀別為說明脫氣孔與根據摄線泵浦的 回轉之系浦室的變化狀態間的關係之形態圖。 第6圖為表示傳統之擺線果浦及本實施形態之擺線栗 浦中之燃料溫度與排出量之關係曲線圖。 弟7圖為用以說明傳统之擺線栗浦之脫氣孔之形態 頁 線 11 313126 508412 A7 _B7 五、發明說明(l2 ) [元件符號說明] 經濟部智慧財產局員工消費合作社印製 1 擺線泵浦 2 殼體 3 馬達軸 5 隔板 10 轉子外殼 10b 凹溝部 10c 溝底部 10e 吸入口 10f 排出口 11 定子 12 内轉子 13 外轉子 14 密封板 Μ 馬達部 P 泵浦部 Τ 擺線齒輪 (請先閱讀背面之注意事項再本頁) f—— 訂---------線 本紙張尺度適用中國國家標準(CNS)A4規格(210 X 297公釐) 12 313126313126 10 A7 B7 V. Description of the invention (11 Printed by the Consumers' Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, the emission will gradually decrease as the temperature rises, while the reduction rate of the cycloid Quanpu 1 can be maintained at the traditional level. The reduction rate of the cycloid 2 is about half of the rate. @, The ^ ^ inch of the orbital and linear pumps reduces the discharge amount. When the material, and θ degrees are at 6 ° degrees, it is equivalent to the increase in fuel temperature. Generated :: The failure will not cause a decrease in the discharge of the cycloidal pump 1. In addition, the present invention is not limited to the macro meaning: the described embodiment, the outgassing formation position 'combined with the largest volume of the Lipu chamber starts to reduce the volume , = In the second figure, it also ^ 3 is the mouth of the inner teeth that constitute the pump chamber of the Langda Valley product and the outer teeth of the outer rotor; =: the front side of the inner rotor part of the mattress is directly forward Any [Simplified description of the drawing] in the peripheral part of the first figure is a partial cross-sectional side view of the cycloid Kuriura. The second figure (A) and (B) are the front view and the rear view of the first figure, respectively. Figures ⑷ and (B) are the rear view of the rotor case and the XX sectional view, respectively. Figures (A) and (B) are a front view of the cycloidal Guopu and section XX of Figure 4. Figures 5 (A) to (C) illustrate the degassing hole and the rotation of the pump according to the line of sight. The morphological diagram of the relationship between the changes in the state of Uramura. Fig. 6 is a graph showing the relationship between the fuel temperature and the discharge in the traditional cycloid Gopur and the cycloid Kuriura of this embodiment. To illustrate the form of the ventilating holes of the traditional cycloid Lipu Page 11 313126 508412 A7 _B7 V. Description of the invention (l2) [Explanation of the symbol of the component] Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economy 1 Cycloidal pump 2 shell Body 3 Motor shaft 5 Baffle 10 Rotor housing 10b Groove part 10c Groove bottom 10e Suction port 10f Discharge port 11 Stator 12 Inner rotor 13 Outer rotor 14 Seal plate M Motor section P Pump section T Cycloidal gear (Please read the (Notes on this page) f—— Order --------- The size of thread paper is applicable to China National Standard (CNS) A4 (210 X 297 mm) 12 313126

Claims (1)

508412 A8 B8 C8 D8 六、申請專利範圍 1· 一種擺線泵浦,係具備:將齒數不同之内轉齒的外齒與 外轉齒的内齒相咬合,利用隨著内轉齒的回轉而產生外 轉齒回轉,而使形成於兩轉齒齒間之泵浦室容積逐漸產 生變化之擺線齒輪;及與該擺線齒輪的一側面自由回轉 而接觸,而使與前述泵浦室之容積逐漸增大成為減壓狀 態之一側的一半部,形成於對向於該一半部的位置上之 吸入口,以及形成於與栗浦室的容積逐漸減少侧的另一 半部相對位置上之排出口的轉子外殼之擺線泵浦,其 中,於前述轉子外殼形成脫氣孔以排出泵浦室内汽化之 燃料時,將該脫氣孔配置於前述排出口之轉子回轉方向 的正前方,同時,在配合成為最大容積之泵浦室開始減 少容積之時序,與該泵浦室連通之位置。 2·如申請專利範圍第1項之擺線泵浦,其中,形成於轉子 外殼之一半部的吸入口,當泵浦室為最大容積時,配合 該時間中斷與該泵浦室間的貫通狀態。 3·如申請專利範圍第1項或第2項之擺線泵浦,其中,脫 ------------W·裝 (請先閲讀背面之注意事寫本頁) 了 0^ tmm mmm§ n ϋ 】rJ0 n Mmmm mmam mMmm ti el I I · 氣孔被配置形成於内轉子的外徑部位。 經濟部智慧財產局員工消費合作社印製 本紙張尺度適用中國國家標準(CNS)A4規格(210 x 297公爱) 13 313126508412 A8 B8 C8 D8 6. Application for patent scope 1. A cycloidal pump is equipped with: the external teeth of the internal rotating teeth with different numbers of teeth are engaged with the internal teeth of the external rotating teeth. Cycloidal gears that cause the outer rotating teeth to rotate and gradually change the volume of the pump chamber formed between the teeth of the two rotating teeth; and freely revolve and come into contact with one side of the cycloidal gears to make contact with the aforementioned pumping chamber. The volume gradually increases to one half of the decompression state, and the suction port is formed at a position facing the half, and it is formed at a position opposite to the other half of the volume of the Kuriura chamber. The cycloidal pump of the rotor casing of the exhaust port, wherein when the rotor casing forms a degassing hole to discharge the vaporized fuel in the pump chamber, the degassing hole is arranged directly in front of the rotation direction of the rotor of the exhausting port. Coordinate with the pump chamber that has become the largest volume, and start to reduce the volume, and communicate with the pump chamber. 2. As in the cycloidal pump of the first scope of the patent application, in which the suction port formed in one half of the rotor housing, when the pump chamber has the maximum volume, interrupt the connection with the pump chamber at this time. . 3. If the cycloidal pump of item 1 or item 2 of the patent application scope, among them, take off ------------ W · install (please read the caution on the back first and write this page) 0 ^ tmm mmm§ n】] rJ0 n Mmmm mmam mMmm ti el II · The air hole is arranged at the outer diameter of the inner rotor. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs This paper is in accordance with China National Standard (CNS) A4 (210 x 297 public love) 13 313126
TW90129501A 2000-12-25 2001-11-29 Trochoid pump TW508412B (en)

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TWI585299B (en) * 2011-12-14 2017-06-01 Diamet Corp Pump rotor

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DE102005021597A1 (en) * 2005-05-10 2006-11-16 Siemens Ag Fuel pump
JP4584770B2 (en) * 2005-05-20 2010-11-24 ペガサスミシン製造株式会社 Sewing machine oiling equipment
JP4237731B2 (en) * 2005-05-31 2009-03-11 株式会社日立製作所 Motor-integrated internal gear pump, method for manufacturing the same, and electronic device

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* Cited by examiner, † Cited by third party
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US4697995A (en) * 1982-07-29 1987-10-06 Walbro Corporation Rotary positive displacement fuel pump with purge port
JP3394544B2 (en) * 1991-11-05 2003-04-07 株式会社デンソー Gear pump
US5571003A (en) * 1995-06-13 1996-11-05 Walbro Corporation Fuel pump with and method to modulate vapor purge port pressure pulses

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI585299B (en) * 2011-12-14 2017-06-01 Diamet Corp Pump rotor

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