JPS62282185A - Delivery pressure regulator for trochoidal pump - Google Patents

Delivery pressure regulator for trochoidal pump

Info

Publication number
JPS62282185A
JPS62282185A JP29581285A JP29581285A JPS62282185A JP S62282185 A JPS62282185 A JP S62282185A JP 29581285 A JP29581285 A JP 29581285A JP 29581285 A JP29581285 A JP 29581285A JP S62282185 A JPS62282185 A JP S62282185A
Authority
JP
Japan
Prior art keywords
passage
housing
pump
hole
open end
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP29581285A
Other languages
Japanese (ja)
Inventor
Masataka Takada
高田 正隆
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yamaha Motor Co Ltd
Original Assignee
Yamaha Motor Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yamaha Motor Co Ltd filed Critical Yamaha Motor Co Ltd
Priority to JP29581285A priority Critical patent/JPS62282185A/en
Publication of JPS62282185A publication Critical patent/JPS62282185A/en
Pending legal-status Critical Current

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  • Rotary Pumps (AREA)

Abstract

PURPOSE:To vary the delivery pressure of a trochoidal pump easily through a simple structure by holding a path board having a through-hole for communicating between a delivery path and a suction path between an open end of housing and a cover. CONSTITUTION:A flange section 15 is formed integrally at an open end 13 at one end of housing 11 of a trochoidal pump P. A cover 43 is fixed to the flange section 15 while holding a path board 41. An elongated through-hole 45 for communicating between a suction groove 17 and a delivery groove 19 through a pump chamber 31 is made through the path board 41. Since only the size of the through-hole varies, the delivery pressure of the trochoidal pump can be regulated easily.

Description

【発明の詳細な説明】 3、発明の詳細な説明 〔産業上の利用分野〕 この発明はトロコイドポンプの吐出圧力調節装置に関す
る。
Detailed Description of the Invention 3. Detailed Description of the Invention [Field of Industrial Application] This invention relates to a discharge pressure regulating device for a trochoid pump.

〔従来技術の説明〕[Description of prior art]

従来におけるトロコイドポンプの吐出圧力調節は、吐出
通路と吸入通路とをバイパスによってよって連通し、か
かるバイパスの通過流量を調節することによって行って
いた。
Conventionally, the discharge pressure of a trochoid pump has been adjusted by communicating the discharge passage and the suction passage through a bypass and adjusting the flow rate through the bypass.

〔従来技術の問題点〕[Problems with conventional technology]

しかしながら、かかる従来の8周節装置は、バルブ等を
使用して吐出圧力の調整をしていたため、製造コストが
高くなるという不都合を有した。
However, such a conventional 8-cycle device used a valve or the like to adjust the discharge pressure, which had the disadvantage of increasing manufacturing costs.

いう不都合を有した。There were some inconveniences.

〔前記問題点を解決するための手段〕[Means for solving the above problems]

この発明の目的は前記不都合を解消することであり、 吐出通路と吸入通路とを有するハウジング内に内ロータ
と外ロータとを収容し、且つ、その開口端をカバーで覆
ったトロコイドポンプにおいて、前記ハウジングの開口
端と前記カバーとの間に通路板を挟持し、この通路板に
設けた透孔を介して前記吐出通路と吸入通路とを連通ず
ることにより達成された。
An object of the present invention is to solve the above-mentioned inconvenience, and to provide a trochoid pump in which an inner rotor and an outer rotor are housed in a housing having a discharge passage and a suction passage, and the open end of the rotor is covered with a cover. This was achieved by sandwiching a passage plate between the open end of the housing and the cover, and communicating the discharge passage and suction passage through through holes provided in the passage plate.

〔発明の作用〕[Action of the invention]

この発明に係るトロコイドポンプの吐出圧力調節装置は
上記のように構成されているため、通路板の透孔の大き
さを変えるだけで吐出圧力を調節できるものである。
Since the trochoid pump discharge pressure adjusting device according to the present invention is constructed as described above, the discharge pressure can be adjusted simply by changing the size of the through hole in the passage plate.

〔実施例の説明〕[Explanation of Examples]

以下、第1図〜第4図に基づいてこの発明の詳細な説明
する。
Hereinafter, the present invention will be explained in detail based on FIGS. 1 to 4.

第4図において、11はトロコイドポンプPのハウジン
グであり、開口端13にはフランジ部15が一体形成さ
れている。又、17はこの発明の吸入通路に相当する吸
入溝、19は同吐出通路に相当する吐出溝であり、各々
前記フランジ部15からハウジング11の底面にわたっ
て形成されている。なお、21は吸入溝に形成された吸
入孔、23は吐出溝に形成された吐出孔である。
In FIG. 4, 11 is a housing of the trochoid pump P, and a flange portion 15 is integrally formed at the open end 13. Further, 17 is a suction groove corresponding to the suction passage of the present invention, and 19 is a discharge groove corresponding to the discharge passage, each of which is formed extending from the flange portion 15 to the bottom surface of the housing 11. Note that 21 is a suction hole formed in the suction groove, and 23 is a discharge hole formed in the discharge groove.

25はトロコイドポンプの外ロータであり、ハウジング
11内に点aを中心として回転可能に嵌挿されている。
Reference numeral 25 denotes an outer rotor of the trochoid pump, which is fitted into the housing 11 so as to be rotatable about point a.

又、27はトロコイドポンプの内ロータであり、外ロー
タ25の内側に内嵌めされている。
Further, 27 is an inner rotor of the trochoid pump, which is fitted inside the outer rotor 25.

この内ロータ25は回転軸29に固定された状態で点す
を中心として回転する。31 、31 、・・・はポン
プ室であり、外ロータ25と内ロータ27との間に形成
されている。このポンプ室31は吸入溝17から吸入さ
れた液体を加圧して吐出a19に送りだす。なお、回転
軸29は第2図に示すようにハウジング11から突出し
、その突出部には歯車33が固着されている。
The inner rotor 25 is fixed to a rotating shaft 29 and rotates about the point. 31 , 31 , . . . are pump chambers, which are formed between the outer rotor 25 and the inner rotor 27. This pump chamber 31 pressurizes the liquid sucked from the suction groove 17 and sends it out to the discharge a19. The rotating shaft 29 protrudes from the housing 11 as shown in FIG. 2, and a gear 33 is fixed to the protruding portion.

この歯車33は駆動W(図示せず)から回転軸29に回
転運動を受けるためのものである。
This gear 33 is for receiving rotational motion from the drive W (not shown) to the rotating shaft 29.

第1図〜第3図において、41は通路板であり、ハウジ
ング11の開口端13およびフランジ部15(この発明
の開口端に相当する)とカバー43とによって挟持され
ている。又、45は長孔状の透孔であり、通路板41に
形成されている。この透孔45はポンプ室31を介して
吸入溝17と吐出溝19とを連通している(第3図参照
)。
1 to 3, reference numeral 41 denotes a passage plate, which is held between the open end 13 and flange portion 15 (corresponding to the open end of the present invention) of the housing 11, and the cover 43. Further, reference numeral 45 denotes a long hole-shaped through hole, which is formed in the passage plate 41. This through hole 45 communicates the suction groove 17 and the discharge groove 19 via the pump chamber 31 (see FIG. 3).

〔発明の効果〕〔Effect of the invention〕

この発明に係るトココイドポンプの吐出圧力調節装置は
上記のように構成されているため、通路板の透孔の大き
さを変えるだけで吐出圧力を調節できる結果、従来に比
し、製造コストが極めて安価になる。
Since the discharge pressure regulating device for a tococoid pump according to the present invention is constructed as described above, the discharge pressure can be adjusted simply by changing the size of the through hole in the passage plate, resulting in lower manufacturing costs than in the past. It becomes extremely cheap.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図〜第4図はこの発明に係るトロコイドポンプの吐
出圧力調節装置の実施例を示すものであり、第1図は部
分破断正面図、第2図は第1図におけるll−ff線断
面図、第3図は第1図における■−■線断面図、第4図
は第1図におけるカバーと通路板とを取り除いた図であ
る。 11  ・・・ ハウジング 13、15・・・ 開口端 17  ・・・ 吐出通路 19  ・・・ 吸入通路 25  ・・・ 外ローフ 27  ・・・ 内ロータ 41  ・・・ 通路板 43  ・・・ カバー 45  ・・・ 透孔 P ・・・ トロコイドポンプ 特 許 出 願 人  ヤマハ発動機株式会社代理人 
弁理士    野 末  祐 司 −【       
 □ ・、−1、−′ ’v、−+” 第1図 ?r 第2図 第3図
1 to 4 show an embodiment of the trochoid pump discharge pressure regulating device according to the present invention, FIG. 1 is a partially cutaway front view, and FIG. 2 is a cross section taken along the line ll-ff in FIG. 1. FIG. 3 is a sectional view taken along the line ■--■ in FIG. 1, and FIG. 4 is a view with the cover and passage plate removed from FIG. 1. 11... Housing 13, 15... Open end 17... Discharge passage 19... Suction passage 25... Outer loaf 27... Inner rotor 41... Passage plate 43... Cover 45. ... Through hole P ... Trochoid pump patent applicant Agent: Yamaha Motor Co., Ltd.
Patent Attorney Yuji Nosue −[
□ ・, -1, -''v,-+'' Figure 1?r Figure 2 Figure 3

Claims (1)

【特許請求の範囲】[Claims] (1)、吐出通路と吸入通路とを有するハウジング内に
内ロータと外ロータとを収容し、且つ、その開口端をカ
バーで覆ったトロコイドポンプにおいて、 前記ハウジングの開口端と前記カバーとの間に通路板を
挟持し、この通路板に設けた透孔を介して前記吐出通路
と吸入通路とを連通してなるトロコイドポンプの吐出圧
力調節装置。
(1) In a trochoid pump, in which an inner rotor and an outer rotor are housed in a housing having a discharge passage and a suction passage, and the open end of the rotor is covered with a cover, between the open end of the housing and the cover. A discharge pressure regulating device for a trochoid pump, in which a passage plate is sandwiched between the passage plates, and the discharge passage and the suction passage are communicated with each other through a through hole provided in the passage plate.
JP29581285A 1985-12-26 1985-12-26 Delivery pressure regulator for trochoidal pump Pending JPS62282185A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP29581285A JPS62282185A (en) 1985-12-26 1985-12-26 Delivery pressure regulator for trochoidal pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP29581285A JPS62282185A (en) 1985-12-26 1985-12-26 Delivery pressure regulator for trochoidal pump

Publications (1)

Publication Number Publication Date
JPS62282185A true JPS62282185A (en) 1987-12-08

Family

ID=17825481

Family Applications (1)

Application Number Title Priority Date Filing Date
JP29581285A Pending JPS62282185A (en) 1985-12-26 1985-12-26 Delivery pressure regulator for trochoidal pump

Country Status (1)

Country Link
JP (1) JPS62282185A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5733111A (en) * 1996-12-02 1998-03-31 Ford Global Technologies, Inc. Gerotor pump having inlet and outlet relief ports
EP1503081A1 (en) * 2003-07-31 2005-02-02 Voith Turbo GmbH & Co. KG Hydraulic pump

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5733111A (en) * 1996-12-02 1998-03-31 Ford Global Technologies, Inc. Gerotor pump having inlet and outlet relief ports
EP1503081A1 (en) * 2003-07-31 2005-02-02 Voith Turbo GmbH & Co. KG Hydraulic pump
US7331775B2 (en) 2003-07-31 2008-02-19 Voith Turbo Gmbh & Co. Kg Pumping device

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