JPS63129101A - Rotary piston type engine - Google Patents

Rotary piston type engine

Info

Publication number
JPS63129101A
JPS63129101A JP27621086A JP27621086A JPS63129101A JP S63129101 A JPS63129101 A JP S63129101A JP 27621086 A JP27621086 A JP 27621086A JP 27621086 A JP27621086 A JP 27621086A JP S63129101 A JPS63129101 A JP S63129101A
Authority
JP
Japan
Prior art keywords
housing
rotor
center
formed along
wall surface
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.)
Granted
Application number
JP27621086A
Other languages
Japanese (ja)
Other versions
JPH0670362B2 (en
Inventor
Hidenobu Miyajima
宮嶋 秀伸
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.)
Asahi Tec Corp
Original Assignee
Asahi Malleable Iron 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 Asahi Malleable Iron Co Ltd filed Critical Asahi Malleable Iron Co Ltd
Priority to JP27621086A priority Critical patent/JPH0670362B2/en
Publication of JPS63129101A publication Critical patent/JPS63129101A/en
Publication of JPH0670362B2 publication Critical patent/JPH0670362B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

PURPOSE:To prevent live gas from leaking without fail, by forming a sectional- form projection part, going along a hypotrochoidal curve, at the apex side of each flank surface of an almost triangular sectional rotor, while forming a housing inner wall surface along an epitrochoidal curve. CONSTITUTION:In case of an engine which house the rotor 13 formed in into almost triangular form in the section in a housing 11 whose inner wall surface is formed into sectional cocoon form, free of rotation, projection parts 31 and 32 are formed in and around each apex part 35 of three flank surfaces of this rotor 13. Each sectional form of these projection parts 31 and 32 is formed along a hypotrochoidal curve describing the center of the rotor 13 as a zero position. And, the inner wall surface of the housing 11 is formed along an epitrochoidal curve descriving the center of the housing 11 as a zero position. In addition, a bend groove 41 in such a sectional form as going along an outer envelope of a hypotrochoid describing the center of the housing 11 as a zero position is formed in and around both sides of a wire part 21 of this inner wall surface.

Description

【発明の詳細な説明】[Detailed description of the invention]

(発明の目的) 〔産業上の利用分野〕 この発明は、−aに圧縮機、内燃機関等として使用され
る回転ピストン形機関に関する。
(Object of the Invention) [Industrial Application Field] The present invention relates to a rotary piston type engine used as a compressor, internal combustion engine, etc.

【従来技術】[Prior art]

回転ピストン形機関は、繭状のハウジングとこのハウジ
ング内を矢印方向(第7図および第8図において)回転
する三角形状の回転ピストンとから構成されている。 そして、従来にあっては第7図に示すよう・にハウジン
グ11の内壁面を2節ペリトロコイド曲線もしくは2節
エピトロコイド曲線(ハウジング11の中心0+を原点
とする)に沿って形成するとともに回転ロータ13のフ
ランク面33を2節ペリトロコイド内包絡線もしくは2
節エピトロコイド内包絡線(回転ロータ13の中心02
を原点とする)に沿って形成したものと、 第8図に示すようにハウジング11の内壁面をハイポト
ロコイド(ハウジング11の中心OLを原点きする)の
外包絡線に沿って形成するとともに回転ロータ13のフ
ランク面33をハイポトロコイド曲線(回転ロータ13
の中心02を原点とする)に沿って形成したものとがあ
る。 〔従来技術の問題点〕 しかしながら、前者にあっては、第7図に示すようにロ
ータ13と吸入口17および排出口19の堰21側端と
の間に隙間Sが、又、後者にあっては第8図に示すよう
にロータ13と吸入口17および排出口19の灰皿21
側端との間に隙間Sが発生し、−の圧縮室(第7図にあ
ってはR3,第8図にあってはR2)が吸入口17と圧
縮室19とに連通ずる場合があり、この結果圧縮膨張行
程を繰り返す回転ピストン機関にとってはふされしくな
い現象が生ずるという不都合を有した。 (発明の構成) 〔問題点を解決するための手段〕 この発明は前記問題点を解決するためのものであり、そ
の要旨は、 繭状ハウジングと、断面が略三角形状をした回転ロータ
とを備え、 前記ハウジングにおける繭形状の堰部を境として両側に
吸入口又は排出口を形成し、このハウジング内を前記回
転ロータが回転しながら圧縮膨張行程を繰り返す回転ピ
ストン形機関において、前記ロータのフランク面の断面
形状を前記回転ロータの中心を原点として描いたエピト
ロコイドの内包絡線に沿って形成し、且つ、このフラン
ク面の頂点部側に前記ロータの軸方向に沿って突条部を
形成するとともにこの突条部の断面形状を前記回転ロー
タの中心を原点として描いたハイポトロコイド曲線に沿
って形成し、 更に、前記ハウジングの内壁面を前記ハウジングの中心
を原点として描いたエピトロコイド曲線に沿って形成し
、且つ、この内壁面の堰部の両側近傍に前記ハウジング
の軸方向に沿って湾曲溝を形成するとともにこの湾曲溝
の断面形状を前記/’%ウジングの中心を原点として描
いたハイポトロコイドの外包絡線に沿って形成したこと
を特徴とする回転ピストン形機関である。 〔発明の作用〕 この発明に係る回転ピストン形機関にあっては、前記ロ
ータのフランク面の断面形状を前記回転ロータの中心を
原点として描いたエピトロコイドの内包絡線に沿って形
成し、且つ、このフランク面の頂点部側に前記ロータの
軸方向に沿って突条部を形成するとともにこの突条部の
断面形状を前記回転ロータの中心を原点として描いたハ
イポトロコイド曲線に沿って形成しているため、回転ロ
ータにおける突条部が排出口(吸入口)の位置に達した
とき、この突条部の頂点端部によって排出口(吸入口)
の反収目端をシールできる(第7図参照)とともに前記
突条部の反頂点部端によってこの排出口(吸入口)の堰
側端のシールを行うことができる(第8図参照)。 又、この回転ピストン機関は、前記ハウジングの内壁面
を前記ハウジングの中心を原点として描いたエピトロコ
イド曲線に沿って形成し、且つ、この内壁面の基部近傍
に前記ハウジングの軸方向に沿って湾曲溝を形成すると
ともにこの湾曲溝の断面形状を前記ハウジングの中心を
原点として描いたハイポトロコイドの外包絡線に沿って
形成しているため、上記のように形成された回転ピスト
ンがハウジング内を支障なく回転することができる。 〔実施例の説明〕 以下、第1図〜第6図に基づいてこの発明の詳細な説明
する。 第1図〜第4図において、11は回転ピストン形機関1
0のハウジングであり、内壁面がトロコイド曲線に沿っ
て形成されている。又、13は回転ロータである。この
回転ロータ13の断面はそのハウジフグ11内壁面のト
ロコイドの内包絡線に沿って略三角形状に形成されてい
る。このロータ13は、前記ハウジング11内をO5を
公転中心(回転軸15の中心)、0□を自転中心として
偏心回転する。なお、Eは偏心距離である。 次に、17.17は吸入口、19.19は排出口であり
、堰部21,21を境としてハウジング11の両側壁に
一対づつ形成されている。 このように構成される回転ピストン形機関にあっては、
回転ロータ13が、順に第1図、第2図、第3図および
第4図の状態をとりながら時計方向に回転するものであ
る。 31.32は突条部であり、ロータ13のフランク面3
3.33.33の頂点部35.35.35近傍に形成さ
れている。 これらの突条部31.32のうち、突条部31の幅は、
ロータ13が横切る排出口19の径に等しく、且つ、突
条部32の幅は、ロータ13が横切る吸入口17の径に
等しいものである。 次に、第5図および第6図に基づいて、ロータ13の突
条部31の形状の定め方について説明する。 ロータ13の中心02を原点として、X−Y座標を定め
、ハウジング11の中心OIから排出口19の堰21側
端Mまでの距離をH,01MとX軸とのなす角度を01
変数をし、偏心距離をEとすると、x=Hcos (L
+G) −E cos2 Ly=E 5in2L+Hs
in (L+G)のグラフは曲線43になる。この曲線
43におけるPの部分が前記ロータ13の突条部31の
形状を表すものである。なお、突条部32(第1図〜第
4図参照)も吸入口17の灰皿21側端を基準として同
様に定めることができる。 次に、第5図に基づいて、ハウジング11の湾曲部41
の断面形状の定め方について説明する。 まず、ハウジング11の中心O3を原点として、X−Y
’座標を定め、ロータ13の中心02とフランク面上の
点■とを結んだ直線の距離をD、その0アVとX軸との
なす角度を81変数をLとしたときに、次の方程式によ
って得られる曲線(図示せず)をAとする。 x=D cos (S−L/ 3) +E cosLy
=D  sin  (S−L/3)  −E  5in
Lそして、前記湾曲部41の断面形状は、点■をフラン
ク面上において移動させることにより、曲線Aを無数に
作図し、これらの曲線Aの外接曲線に基づいて形成され
る。 このようにして湾曲部41を、ハウジング11の内壁面
における前記吸入口17および前記排出口19の開口の
一端縁から他端である反照方向の口端近傍にまで形成す
れば、 ロータ13に突条部31.32が存在しても、ロータ1
3はハウジング11内を支障なく回転できる(第2図及
び第4図参照)。 (発明の効果) この発明に係る回転ピストン形機関にあっては、前記ロ
ータのフランク面の断面形状を前記回転ロータの中心を
原点として描いたエピトロコイドの内包絡線に沿って形
成し、且つ、このフランク面の頂点部側に前記ロータの
軸方向に沿って突条部を形成するとともにこの突条部の
断面形状を前記回転ロータの中心を原点として描いたハ
イポトロコイド曲線に沿って形成しているため、回転ロ
ータにおける突条部が排出口(吸入口)の位置に達した
とき、この突条部の頂点端部によって排出口(吸入口)
の灰皿口端をシールできる(第7図参照)とともに前記
突条部の反頂点部端によってこの排出口(吸入口)の堰
側端のシールを行うことができる(第8図参照)。 このため、回転ロータの回転中に、−の圧縮室が排出側
と吸入側とに連通ずることはない。 又、この回転ピストン機関は、前記ハウジングの内壁面
を前記ハウジングの中心を原点として描いたエピトロコ
イド曲線に沿って形成し、且つ、この内壁面の堰部近傍
に前記ハウジングの軸方向に沿って湾曲溝を形成すると
ともにこの湾曲溝の断面形状を前記ハウジングの中心を
原点として描いたハイポトロコイドの外包絡線に沿って
形成しているため、上記のように形成された回転ピスト
ンがハウジング内を支障なく回転することができる。
The rotary piston type engine is composed of a cocoon-shaped housing and a triangular rotary piston that rotates in the direction of the arrow (in FIGS. 7 and 8) within the housing. Conventionally, as shown in FIG. 7, the inner wall surface of the housing 11 is formed along a two-node peritrochoid curve or a two-node epitrochoid curve (with the center 0+ of the housing 11 as the origin) and rotated. The flank surface 33 of the rotor 13 is defined as the 2-node peritrochoid internal envelope or 2
Nodal epitrochoid inner envelope (center 02 of rotating rotor 13
As shown in FIG. 8, the inner wall surface of the housing 11 is formed along the outer envelope of the hypotrochoid (the origin is the center OL of the housing 11) and rotated. The flank surface 33 of the rotor 13 is defined by a hypotrochoid curve (rotating rotor 13
The origin is the center 02 of [Problems with the prior art] However, in the former case, as shown in FIG. As shown in FIG.
A gap S may occur between the side end and the negative compression chamber (R3 in FIG. 7, R2 in FIG. 8) communicating with the suction port 17 and the compression chamber 19. As a result, a phenomenon unsuitable for a rotary piston engine that repeats compression and expansion strokes occurs. (Structure of the Invention) [Means for Solving the Problems] This invention is intended to solve the above-mentioned problems, and its gist is as follows: A cocoon-shaped housing and a rotating rotor having a substantially triangular cross section. In a rotary piston type engine, in which an inlet or an outlet is formed on both sides of the housing with a cocoon-shaped dam as a boundary, and the rotating rotor repeats a compression and expansion stroke while rotating within the housing, the rotor has a flank. The cross-sectional shape of the surface is formed along the inner envelope of an epitrochoid drawn with the center of the rotating rotor as the origin, and a protrusion is formed along the axial direction of the rotor on the apex side of the flank surface. At the same time, the cross-sectional shape of the protrusion is formed along a hypotrochoid curve drawn with the center of the rotating rotor as the origin, and further, the inner wall surface of the housing is formed along the epitrochoid curve drawn with the center of the housing as the origin. A curved groove is formed along the axial direction of the housing near both sides of the weir portion on the inner wall surface, and the cross-sectional shape of this curved groove is drawn with the center of the /'% oozing as the origin. It is a rotating piston type engine characterized by being formed along the outer envelope of a hypotrochoid. [Operation of the Invention] In the rotary piston type engine according to the present invention, the cross-sectional shape of the flank surface of the rotor is formed along the inner envelope of an epitrochoid drawn with the center of the rotor as the origin, and A protrusion is formed along the axial direction of the rotor on the apex side of the flank surface, and the cross-sectional shape of the protrusion is formed along a hypotrochoid curve drawn with the center of the rotating rotor as the origin. Therefore, when the protrusion on the rotating rotor reaches the position of the outlet (intake), the apex end of this protrusion will close the outlet (intake).
It is possible to seal the opposite end of the recess (see FIG. 7), and the weir side end of the outlet (intake) can be sealed by the opposite end of the apex of the protrusion (see FIG. 8). Further, in this rotary piston engine, an inner wall surface of the housing is formed along an epitrochoid curve drawn with the center of the housing as the origin, and a curved surface near the base of the inner wall surface is curved along the axial direction of the housing. Since the groove is formed and the cross-sectional shape of this curved groove is formed along the outer envelope of the hypotrochoid drawn with the center of the housing as the origin, the rotating piston formed as described above does not interfere with the inside of the housing. It can be rotated without any problem. [Description of Examples] The present invention will be described in detail below based on FIGS. 1 to 6. 1 to 4, 11 is a rotary piston type engine 1
0 housing, and the inner wall surface is formed along a trochoidal curve. Further, 13 is a rotating rotor. The cross section of the rotating rotor 13 is formed into a substantially triangular shape along the inner envelope of the trochoid on the inner wall surface of the housing puffer 11 . The rotor 13 rotates eccentrically within the housing 11 with O5 as the center of revolution (the center of the rotating shaft 15) and 0□ as the center of rotation. Note that E is an eccentric distance. Next, 17.17 is an inlet port, and 19.19 is an outlet port, which are formed in pairs on both side walls of the housing 11 with the weir parts 21, 21 as boundaries. In a rotary piston type engine configured in this way,
The rotating rotor 13 rotates clockwise while taking the states shown in FIGS. 1, 2, 3, and 4 in order. 31 and 32 are protrusions, which are attached to the flank surface 3 of the rotor 13.
It is formed near the apex portion 35.35.35 of 3.33.33. Among these protrusions 31 and 32, the width of the protrusion 31 is as follows:
The width of the protrusion 32 is equal to the diameter of the discharge port 19 that the rotor 13 crosses, and the width of the protrusion 32 is equal to the diameter of the suction port 17 that the rotor 13 crosses. Next, a method of determining the shape of the protruding portion 31 of the rotor 13 will be explained based on FIGS. 5 and 6. The X-Y coordinates are determined with the center 02 of the rotor 13 as the origin, the distance from the center OI of the housing 11 to the weir 21 side end M of the discharge port 19 is H, and the angle between 01M and the X axis is 01
Let the variables be and the eccentric distance be E, then x=Hcos (L
+G) -E cos2 Ly=E 5in2L+Hs
The graph of in (L+G) becomes a curve 43. A portion P in this curve 43 represents the shape of the protrusion 31 of the rotor 13. Note that the protruding portion 32 (see FIGS. 1 to 4) can be similarly defined with the end of the suction port 17 on the ashtray 21 side as a reference. Next, based on FIG. 5, the curved portion 41 of the housing 11 is
How to determine the cross-sectional shape of will be explained. First, with the center O3 of the housing 11 as the origin,
' Determine the coordinates, and let the distance of the straight line connecting the center 02 of the rotor 13 and the point ■ on the flank surface be D, and the angle between the 0A V and the X axis be 81, and the variable L. Let A be the curve (not shown) obtained by the equation. x=D cos (SL/3) +E cosLy
=D sin (S-L/3) -E 5in
LThe cross-sectional shape of the curved portion 41 is formed by moving the point (2) on the flank surface to draw an infinite number of curves A, and based on the circumscribed curves of these curves A. In this way, if the curved portion 41 is formed from one end edge of the openings of the inlet port 17 and the outlet port 19 on the inner wall surface of the housing 11 to the other end, near the opening end in the reflection direction, the rotor 13 protrudes. Even if the striations 31.32 are present, the rotor 1
3 can rotate within the housing 11 without any trouble (see FIGS. 2 and 4). (Effects of the Invention) In the rotary piston type engine according to the present invention, the cross-sectional shape of the flank surface of the rotor is formed along the inner envelope of an epitrochoid drawn with the center of the rotor as the origin, and A protrusion is formed along the axial direction of the rotor on the apex side of the flank surface, and the cross-sectional shape of the protrusion is formed along a hypotrochoid curve drawn with the center of the rotating rotor as the origin. Therefore, when the protrusion on the rotating rotor reaches the position of the outlet (intake), the apex end of this protrusion will close the outlet (intake).
The mouth end of the ashtray can be sealed (see FIG. 7), and the end of the discharge port (intake port) on the weir side can be sealed by the end opposite to the apex of the protrusion (see FIG. 8). Therefore, during the rotation of the rotating rotor, the negative compression chamber does not communicate with the discharge side and the suction side. Further, in this rotary piston engine, the inner wall surface of the housing is formed along an epitrochoid curve drawn with the center of the housing as the origin, and the inner wall surface is formed along the axial direction of the housing near the dam part of the inner wall surface. Since a curved groove is formed and the cross-sectional shape of this curved groove is formed along the outer envelope of the hypotrochoid drawn with the center of the housing as the origin, the rotating piston formed as described above moves inside the housing. It can be rotated without any problem.

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

第1図〜第6図はこの発明に係る回転ピストン形機関の
実施例を示すもので、第1図〜第4図はロータの回転状
態を示す断面図、第5図は同ロータの突条部の形状を説
明する説明図、第6図は第5図における■部拡大図であ
り、 第7図および第8図は従来例の断面図である。 10  ・・・ 回転ピストン形機関 11  ・・・ ハウジング 13  ・・・ 回転ロータ 17  ・・・ 吸入口 19  ・・・ 排出口 21  ・・・ 堰部 31.32・・・突条部 33  ・・・ フランク面 41  ・・・ 湾曲溝 O8・・・ ハウジングの中心 02・・・ 回転ロータの中心 第1図 第2囚 第3図 第4図 第5図 第6因 第7図 第8因 手続主甫正書(方式) %式% 1、事件の表示  特願昭61−276210号′:八
メー″ 2へ発明の名称    回転ピストン形機関3、補正を
する者 事件との関係   特許出願人 住所 静岡県小笠郡菊用町堀之内547番地の1名称 
旭可鍛鉄株式会社 代表者 岡 市之助 4、代理人  〒430 静岡県浜松市元城町218番地の29 5、補正命令の日付  自発 (2)、  凶■■                
                         
  ゛てで7、補正の内容 (1)、明細書第8頁第7行目に「のグラフは」とある
を「で表される式は」と訂正する。 (2)、第5図を別紙のように符号43の引出線を訂正
する。
1 to 6 show embodiments of a rotary piston type engine according to the present invention, and FIGS. 1 to 4 are cross-sectional views showing the rotating state of the rotor, and FIG. FIG. 6 is an enlarged view of the section ``■'' in FIG. 5, and FIGS. 7 and 8 are cross-sectional views of the conventional example. 10...Rotating piston type engine 11...Housing 13...Rotating rotor 17...Inlet port 19...Outlet port 21...Weir portion 31, 32...Protrusion portion 33... Flank surface 41... Curved groove O8... Center of housing 02... Center of rotating rotor Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Cause 7 Figure 8 Cause Procedure Official text (method) % formula % 1. Indication of the case Japanese Patent Application No. 1983-276210': 8 meters'' 2 Title of the invention Rotary piston engine 3. Person making the amendment Relationship with the case Address of the patent applicant Shizuoka Prefecture 1 name of 547 Horinouchi, Kikuyo-cho, Ogasa-gun
Asahi Malleable Iron Co., Ltd. Representative: Ichinosuke Oka 4, Agent: 29-5, 218 Motojocho, Hamamatsu City, Shizuoka Prefecture 430, Date of amendment order: Voluntary action (2), Violation ■■

7. Contents of amendment (1), on page 8, line 7 of the specification, the phrase ``The graph is'' is corrected to ``The formula expressed by is.'' (2) Correct the leader line 43 in FIG. 5 as shown in the attached sheet.

Claims (1)

【特許請求の範囲】[Claims] (1)、繭状ハウジングと、断面が略三角形状をした回
転ロータとを備え、 前記ハウジングにおける繭形状の堰部を境として吸入口
又は排出口を形成し、このハウジング内を前記回転ロー
タが回転しながら圧縮膨張行程を繰り返す回転ピストン
形機関において、前記ロータのフランク面の断面形状を
前記回転ロータの中心を原点として描いたエピトロコイ
ドの内包絡線に沿って形成し、且つ、このフランク面の
頂点部側に前記ロータの軸方向に沿って突条部を形成す
るとともにこの突条部の断面形状を前記回転ロータの中
心を原点として描いたハイポトロコイド曲線に沿って形
成し、更に、前記ハウジングの内壁面を前記ハウジング
の中心を原点として描いたエピトロコイド曲線に沿って
形成し、且つ、この内壁面の堰部の両側近傍に前記ハウ
ジングの軸方向に沿って湾曲溝を形成するとともにこの
湾曲溝の断面形状を前記ハウジングの中心を原点として
描いたハイポトロコイドの外包絡線に沿って形成したこ
とを特徴とする回転ピストン形機関。
(1) A cocoon-shaped housing and a rotating rotor having a substantially triangular cross section, an inlet or an outlet is formed with a cocoon-shaped dam in the housing as a boundary, and the rotating rotor runs inside the housing. In a rotary piston type engine that repeats compression and expansion strokes while rotating, the cross-sectional shape of the flank surface of the rotor is formed along the inner envelope of an epitrochoid drawn with the center of the rotor as the origin, and the flank surface A protrusion is formed along the axial direction of the rotor on the apex side of the rotor, and the cross-sectional shape of the protrusion is formed along a hypotrochoid curve drawn with the center of the rotating rotor as the origin; The inner wall surface of the housing is formed along an epitrochoid curve drawn with the center of the housing as the origin, and curved grooves are formed along the axial direction of the housing near both sides of the dam on the inner wall surface. A rotary piston type engine, wherein the cross-sectional shape of the curved groove is formed along an outer envelope of a hypotrochoid drawn with the center of the housing as the origin.
JP27621086A 1986-11-18 1986-11-18 Rotary piston engine Expired - Lifetime JPH0670362B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP27621086A JPH0670362B2 (en) 1986-11-18 1986-11-18 Rotary piston engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP27621086A JPH0670362B2 (en) 1986-11-18 1986-11-18 Rotary piston engine

Publications (2)

Publication Number Publication Date
JPS63129101A true JPS63129101A (en) 1988-06-01
JPH0670362B2 JPH0670362B2 (en) 1994-09-07

Family

ID=17566218

Family Applications (1)

Application Number Title Priority Date Filing Date
JP27621086A Expired - Lifetime JPH0670362B2 (en) 1986-11-18 1986-11-18 Rotary piston engine

Country Status (1)

Country Link
JP (1) JPH0670362B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105822542A (en) * 2016-03-22 2016-08-03 广东工业大学 Displacement pump and conveying method thereof
JP6052699B1 (en) * 2016-06-29 2016-12-27 正裕 井尻 Supercharger for internal combustion engine
WO2018092257A1 (en) * 2016-11-18 2018-05-24 正裕 井尻 Turbocharger for internal combustion engine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105822542A (en) * 2016-03-22 2016-08-03 广东工业大学 Displacement pump and conveying method thereof
JP6052699B1 (en) * 2016-06-29 2016-12-27 正裕 井尻 Supercharger for internal combustion engine
WO2018092257A1 (en) * 2016-11-18 2018-05-24 正裕 井尻 Turbocharger for internal combustion engine

Also Published As

Publication number Publication date
JPH0670362B2 (en) 1994-09-07

Similar Documents

Publication Publication Date Title
US3226013A (en) Rotary machine
EP1927752B1 (en) Oil pump rotor
JPS5835202A (en) Helical type rotor
US8360762B2 (en) Oil pump rotor
RU2112885C1 (en) Mated rotors
KR100345406B1 (en) Oil Pump Projector
JPS63129101A (en) Rotary piston type engine
CN107989792B (en) Full smooth screw rotor
JPH0320481Y2 (en)
JPH034757B2 (en)
JP6080300B2 (en) Manufacturing method of gear pump and inner rotor
JP4803442B2 (en) Oil pump rotor
US7565741B2 (en) Methods for designing lobe-type rotors
US4417862A (en) Rotary motor with multilobed rotor and orbiting coupling means
JP2946010B2 (en) air pump
JPH11230067A (en) Fluid machine
JPH0557415B2 (en)
JP2017089490A (en) Scroll compressor
JPS58172403A (en) Scroll fluid machine
JPS59131787A (en) Rotary pump
JPS61182483A (en) Root's compressor
JPS63167087A (en) Rotor for rotary pump
CN111779674A (en) Rotor profile of multi-blade roots pump
JP2001515166A (en) Rotating piston device
KR100313895B1 (en) scroll type compressor