WO2003056182A1 - Machine with rotating pistons - Google Patents

Machine with rotating pistons Download PDF

Info

Publication number
WO2003056182A1
WO2003056182A1 PCT/CN2002/000141 CN0200141W WO03056182A1 WO 2003056182 A1 WO2003056182 A1 WO 2003056182A1 CN 0200141 W CN0200141 W CN 0200141W WO 03056182 A1 WO03056182 A1 WO 03056182A1
Authority
WO
WIPO (PCT)
Prior art keywords
rotary piston
piston
stator
cavity
combined rotary
Prior art date
Application number
PCT/CN2002/000141
Other languages
French (fr)
Chinese (zh)
Inventor
Ming Bai
Original Assignee
Ming Bai
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 Ming Bai filed Critical Ming Bai
Priority to AU2002238360A priority Critical patent/AU2002238360A1/en
Publication of WO2003056182A1 publication Critical patent/WO2003056182A1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C2/40—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C2/08 or F04C2/22 and having a hinged member
    • F04C2/44—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C2/08 or F04C2/22 and having a hinged member with vanes hinged to the inner member

Definitions

  • the invention belongs to the field of mechanical volume type equipment, and particularly relates to the field of a fluid compression pump such as a rotary piston compressor or a pump. Background technique
  • the volumetric fluid compression and pumping machines mainly include: (1) reciprocating piston compressors and plunger pumps; the structure is complicated, the volume is large, the manufacturing cost is high, and there is pulsation and noise.
  • Screw compressors and screw pumps have complex structures and long axial dimensions.
  • Sliding vane compressor and sliding vane pump are relatively simple, but have a short service life.
  • the eccentric configuration of the rotary piston and the main shaft is prone to vibration and has a complicated structure.
  • the scroll compressor and scroll pump are simple in structure, they are difficult to manufacture and have relatively small compression. Summary of the invention
  • the technical problem to be solved by the present invention is to provide a rotary piston machine with small size, simple structure, high rotation speed, low noise, easy processing and low cost.
  • the invention includes: a stator and a combined rotary piston; an internal cavity is arranged in the stator; the combined rotary piston is placed in the internal cavity; a suction chamber and an extrusion chamber are arranged in the stator; A set of suction ports; a set of discharge ports with one-way valve discs are provided in the extrusion chamber; the suction ports and the discharge ports are respectively communicated with the inner cavity:
  • the combined rotary piston is equipped with four piston structural units;
  • the piston The structural unit includes a plug surface and a bracket; the piston structural units are connected by a hinge pin on the bracket; a bearing is provided on the hinge pin; a space between the hinge holes of the bracket forms a parallelogram; The length of the diagonal of the parallelogram changes periodically; the motion trajectory of the end point of the plug surface on the combined rotary piston coincides with the stator cavity curve trajectory equation F (x, y, z); the combined rotary piston
  • the plug surface cooperates with the curved surface of the stator cavity to form each closed independent cavity
  • the present invention is provided with support slides on both axial sides of the inner cavity; the bearings on the combined rotary piston periodically move along the support slides.
  • the invention realizes the non-contact operation of the rotary piston and the stator cavity, which has a simple structure, a long service life, easy processing and manufacturing, low manufacturing cost and wide versatility.
  • FIG. 1 is a schematic diagram of the overall structure of the present invention
  • FIG. 2 is a schematic diagram of the trajectory of a group of parallelogram vertices around the center point of the present invention to form a closed curve.
  • FIG. 3 is a structural diagram of a piston structural unit according to the present invention.
  • FIG. 4 is a cross-sectional view of the present invention, taken along the direction C-C in FIG. 3;
  • FIG. 5 is a schematic structural diagram of a combined rotary piston according to the present invention.
  • the invention contains: a stator 3 and a combined rotary piston 1; an inner cavity 8 is arranged in the stator 3; the combined rotary piston 1 is placed in the inner cavity 8; a suction chamber 11 and a pressure chamber are arranged in the stator 3; Exit chamber 12; a set of suction ports 9 are provided in the suction chamber 11; a set of one-way valve discharge ports 10 are provided in the press-out chamber 12; the suction ports 9 and 10 are respectively connected to the inner cavity 8 Communicated; the combined rotary piston 1 is equipped with four piston structural units 13; the piston structural unit 13 includes a plug surface 14 and a bracket 15; the piston structural unit 13 is connected by a hinge pin 2 on the bracket 15 A bearing 5 is provided on the hinge pin 2; a distance between the hinge holes of the bracket 15 forms a parallelogram; the length of the diagonal of the parallelogram changes periodically; in the inner cavity 8 Support slides 6 are provided on both sides of the axial direction; the bearings 5 on the combined rotary piston 1 move periodically along the support slides 6;
  • brackets 15 In the combined rotary piston of the present invention, adjacent piston structural units 13 can swing freely through the hinge pin 2; the combined rotary piston 1 as a whole rotates around the center point 0; the space between the hinge holes of the bracket 15 forms a parallelogram, and its diagonal The line length gradually increases from small, and then gradually decreases from large.
  • the outer ring surfaces of the four articulated bearings on the piston structural unit 13 of the combined rotary piston 1 roll along the curved trajectory f (x, y, z) of the support slide 6.
  • the support slides 6 are arranged on both sides in the axial direction of the stator cavity.
  • the adjacent rotary structural unit 13 of the combined rotary piston 1 can swing freely through the hinge pin 2; the inner ring of the bearing 5 cooperates with the hinge pin 2; the outer ring surface of the bearing 5 is on the support slide 6 f (x, y, z) Scroll on a curved track surface.
  • the parallelogram diagonal length formed by the joint connection of the hinge holes of the combined rotary piston 1 gradually changes from large to small, and then gradually from small to large.
  • FIG. 2 is a schematic diagram of a group of parallelogram vertices of the present invention periodically moving around its center point to form a closed curve trajectory; a cavity curve equation F (x , y, z) and the curve trajectory equation of the support chute 6 are implemented according to the principle shown in FIG. 2.

Abstract

The present invention raltes to a fluid compressing or pumping machine with rotating pistons, e.g. a compressor or a pump. It comprises a stator (3) and a combined rotating pistons (1). In the stator (3) there are an inner chamber (8), an inlet chamber (11) and an outlet chamber (12). Each piston structural unit (13) comprises a piston surface (14) and a bracket (15). Piston structural units (13) are hinged with each other through pins (2). A bearing (5) is mounted on each pin (2). The lines connecting each hinging holes define a parallelogram. Supporting tracks (6) are arranged on both sides of the inner chamber (8). Bearing (5) on the combined rotating piston (1) periodically move along the supporting tracks (6). The piston surface (14) of the combined rotating pistons (1) coprates with the curve of the chamber of the stator (3) to form several rooms.

Description

旋转活塞机 技术领域  TECHNICAL FIELD
本发明属于机械类容积式设备领域， 特别涉及一种旋转活塞式压缩机或泵 等流体压缩抽送机领域。 背景技术  The invention belongs to the field of mechanical volume type equipment, and particularly relates to the field of a fluid compression pump such as a rotary piston compressor or a pump. Background technique
目前， 容积式流体压縮、 抽送机器主要有： （1) 往复式活塞压缩机， 柱塞 泵； 其结构复杂， 体积较大， 制造成本较高， 存在脉动， 噪声。 （2 ) 螺杆式 压縮机， 螺杆泵， 其结构复杂， 轴向尺寸较长。 （3 ) 滑片式压缩机， 滑片式 泵， 相对简单， 但使用寿命较短。 （4) 回转式压缩机， 回转式泵， 由于回转 活塞与主轴偏心配置， 容易产生振动， 结构复杂。 （5 ) 涡旋式压缩机， 涡旋 式泵， 结构虽然简单， 但加工制造困难， 压缩比较小。 发明内容 ·  At present, the volumetric fluid compression and pumping machines mainly include: (1) reciprocating piston compressors and plunger pumps; the structure is complicated, the volume is large, the manufacturing cost is high, and there is pulsation and noise. (2) Screw compressors and screw pumps have complex structures and long axial dimensions. (3) Sliding vane compressor and sliding vane pump are relatively simple, but have a short service life. (4) For rotary compressors and rotary pumps, the eccentric configuration of the rotary piston and the main shaft is prone to vibration and has a complicated structure. (5) Although the scroll compressor and scroll pump are simple in structure, they are difficult to manufacture and have relatively small compression. Summary of the invention
本发明所要解决的技术问题在于提供一种体积小， 结构简单， 转速高， 噪 音低， 加工制造容易， 成本低廉的旋转活塞机。  The technical problem to be solved by the present invention is to provide a rotary piston machine with small size, simple structure, high rotation speed, low noise, easy processing and low cost.
本发明的技术解决方案可依如下方式实现；  The technical solution of the present invention can be implemented as follows;
本发明含有： 定子、 组合旋转活塞； 所述定子内设有内腔体； 所述组合旋 转活塞置于内腔体内； 所述定子内配有吸入室、 压出室； 所述吸入室内设有一 组吸入口； 压出室内设有一组配有单向阀片的排出口； 所述吸入口与排出口分 别与内腔体相通： 所述组合旋转活塞配有四个活塞结构单元； 所述活塞结构单 元含有塞面、 托架； 所述活塞结构单元之间通过托架上的铰接销轴接； 在所述 铰接销上配有轴承； 所述托架铰接孔间距连线构成平行四边形； 所述平行四边 形对角线的长度大小成周期性变化； 所述组合旋转活塞上的塞面端点的运动轨 迹与定子型腔曲线轨迹方程 F (x, y， z) 相吻合； 所述组合旋转活塞的塞面与 定子型腔曲面配合形成各自密闭的独立腔室。  The invention includes: a stator and a combined rotary piston; an internal cavity is arranged in the stator; the combined rotary piston is placed in the internal cavity; a suction chamber and an extrusion chamber are arranged in the stator; A set of suction ports; a set of discharge ports with one-way valve discs are provided in the extrusion chamber; the suction ports and the discharge ports are respectively communicated with the inner cavity: the combined rotary piston is equipped with four piston structural units; the piston The structural unit includes a plug surface and a bracket; the piston structural units are connected by a hinge pin on the bracket; a bearing is provided on the hinge pin; a space between the hinge holes of the bracket forms a parallelogram; The length of the diagonal of the parallelogram changes periodically; the motion trajectory of the end point of the plug surface on the combined rotary piston coincides with the stator cavity curve trajectory equation F (x, y, z); the combined rotary piston The plug surface cooperates with the curved surface of the stator cavity to form each closed independent cavity.
本发明在所述内腔体轴向两侧配有支承滑道； 所述组合旋转活塞上的轴承 沿支承滑道周期性运动。  The present invention is provided with support slides on both axial sides of the inner cavity; the bearings on the combined rotary piston periodically move along the support slides.
本发明所述托架可为 4个。 本发明实现了旋转活塞与定子型腔无接触运行，其结构简单，使用寿命长， 加工制造容易， 制造成本低廉， 通用性广泛。 附图说明 According to the present invention, there may be four brackets. The invention realizes the non-contact operation of the rotary piston and the stator cavity, which has a simple structure, a long service life, easy processing and manufacturing, low manufacturing cost and wide versatility. BRIEF DESCRIPTION OF THE DRAWINGS
图 1为本发明的整体结构示意图；  FIG. 1 is a schematic diagram of the overall structure of the present invention;
图 2为本发明一组平行四边形顶点绕其中心点作周期性运动形成封闭曲线 轨迹原理图；  FIG. 2 is a schematic diagram of the trajectory of a group of parallelogram vertices around the center point of the present invention to form a closed curve.
图 3为本发明活塞结构单元结构图；  3 is a structural diagram of a piston structural unit according to the present invention;
图 4为本发明沿图 3中 C一 C向的剖视图；  4 is a cross-sectional view of the present invention, taken along the direction C-C in FIG. 3;
图 5为本发明组合旋转活塞结构示意图； 具体实施方式  5 is a schematic structural diagram of a combined rotary piston according to the present invention;
本发明含有： 定子 3、 组合旋转活塞 1 ; 所述定子 3内设有内腔体 8 ; 所述 组合旋转活塞 1置于内腔体 8内； 所述定子 3内配有吸入室 11、 压出室 12; 所述吸入室 11内设有一组吸入口 9; 压出室 12内设有一组配有单向阀片排出 口 10; 所述吸入口 9与排出口 10分别与内腔体 8相通； 所述组合旋转活塞 1 配有四个活塞结构单元 13 ; 所述活塞结构单元 13含有塞面 14、 托架 15; 所述 活塞结构单元 13之间通过托架 15上的铰接销 2轴接； 在所述铰接销 2上配有 轴承 5; 所述托架 15铰接孔间距连线构成平行四边形； 所述平行四边形对角线 的长度大小成周期性变化； 在所述内腔体 8轴向两侧配有支承滑道 6; 所述组 合旋转活塞 1上的轴承 5沿支承滑道 6周期性运动； 所述组合旋转活塞 1上的 塞面 14端点的运动轨迹与定子 3型腔曲线轨迹方程 F (x， y， z) 相吻合； 所 述组合旋转活塞 1的塞面 14与定子 3型腔曲面配合形成各自密闭的独立腔室 I、 II、 III、 IV、 V、 VI。 托架 15为 4个。 本发明组合旋转活塞中相邻活塞结构单 元 13之间可通过铰接销 2自由摆动；组合旋转活塞 1作为一个整体绕中心点 0 旋转； 托架 15铰接孔间距连线构成平行四边形， 其对角线长度由小逐渐变大， 又由大逐渐变小。 组合旋转活塞 1的活塞结构单元 13上四个铰接轴承的外圈 面沿支承滑道 6曲线轨迹 f (x， y， z) 滚动。 支承滑道 6配置在定子型腔轴向 两侧。 组合旋转活塞 1上每个活塞结构单元 13两端点 a， b， c, d, e, f， g， h运动轨迹为 F (x， y， z) ， 与定子型腔曲面为间隙配合。 图 1中 f ( X , y， z) 为支承滑道 6曲线轨迹方程。 图 1中 7为定子型腔曲线。 组合旋转活塞 1上每 个活塞结构单元 13两端点 a， b， c, d, e, f， g， h各处与定子型腔曲线 7配 合成密封间隙， 形成独立腔室 I、 II、 III、 IV、 V、 VI， 如图 1所示。 组合旋转 活塞 1中相邻活塞结构单元 13之间可通过铰接销 2自由摆动； 轴承 5内圈与 铰接销 2配合； 轴承 5外圈面在支承滑道 6上 f (x， y, z) 曲线轨迹面上滚动。 当组合旋转活塞 1按图 1所示箭头方向绕中心转动时， 组合旋转活塞 1铰接孔 间距连接构成的平行四边形对角线长度逐渐由大变小， 再由小逐渐变大， 其组 合旋转活塞 1上&， b， c, d， e, f， g， h随同组合旋转活塞 1运动， 运动轨迹 与定子 3型腔曲线轨迹方程 F (x， y， z) 重合。 组合旋转活塞 1上的各个活塞 结构单元 13所对应的各自独立腔室 I、 II、 III、 IV、 V、 VI的容积同时由最小 逐渐变大， 再由最大变成最小， 经配流从吸入室 11吸进流体， 经配流通过压 出室 12， 将流体排出， 如图 1所示。 图 2为本发明一组平行四边形顶点绕其中 心点作周期性运动形成封闭曲线轨迹原理图； 组合旋转活塞在作周期性运动 中， 其端点作动态同步运动形成的型腔曲线方程 F (x, y， z) 以及支承滑道 6 曲线轨迹方程都依据图 2所示的原理实现的。 The invention contains: a stator 3 and a combined rotary piston 1; an inner cavity 8 is arranged in the stator 3; the combined rotary piston 1 is placed in the inner cavity 8; a suction chamber 11 and a pressure chamber are arranged in the stator 3; Exit chamber 12; a set of suction ports 9 are provided in the suction chamber 11; a set of one-way valve discharge ports 10 are provided in the press-out chamber 12; the suction ports 9 and 10 are respectively connected to the inner cavity 8 Communicated; the combined rotary piston 1 is equipped with four piston structural units 13; the piston structural unit 13 includes a plug surface 14 and a bracket 15; the piston structural unit 13 is connected by a hinge pin 2 on the bracket 15 A bearing 5 is provided on the hinge pin 2; a distance between the hinge holes of the bracket 15 forms a parallelogram; the length of the diagonal of the parallelogram changes periodically; in the inner cavity 8 Support slides 6 are provided on both sides of the axial direction; the bearings 5 on the combined rotary piston 1 move periodically along the support slides 6; the movement trajectory of the end points of the plug surface 14 on the combined rotary piston 1 and the stator 3 cavity The curve trajectory equation F (x, y, z) coincides; the plug surface 14 of the combined rotary piston 1 and the cavity curvature of the stator 3 Each independently cooperate to form a sealed chamber I, II, III, IV, V, VI. There are four brackets 15. In the combined rotary piston of the present invention, adjacent piston structural units 13 can swing freely through the hinge pin 2; the combined rotary piston 1 as a whole rotates around the center point 0; the space between the hinge holes of the bracket 15 forms a parallelogram, and its diagonal The line length gradually increases from small, and then gradually decreases from large. The outer ring surfaces of the four articulated bearings on the piston structural unit 13 of the combined rotary piston 1 roll along the curved trajectory f (x, y, z) of the support slide 6. The support slides 6 are arranged on both sides in the axial direction of the stator cavity. The motion trajectories of points a, b, c, d, e, f, g, h at both ends of each piston structural unit 13 on the combined rotary piston 1 are F (x, y, z), and the clearance fits with the surface of the stator cavity. F (X, y, z) in Figure 1 For the support chute 6 curve trajectory equation. 7 in FIG. 1 is a stator cavity curve. The points a, b, c, d, e, f, g, h at both ends of each piston structural unit 13 on the combined rotary piston 1 are matched with the stator cavity curve 7 to form a sealed gap to form independent chambers I, II, and III. , IV, V, VI, as shown in Figure 1. The adjacent rotary structural unit 13 of the combined rotary piston 1 can swing freely through the hinge pin 2; the inner ring of the bearing 5 cooperates with the hinge pin 2; the outer ring surface of the bearing 5 is on the support slide 6 f (x, y, z) Scroll on a curved track surface. When the combined rotary piston 1 rotates around the center in the direction of the arrow shown in FIG. 1, the parallelogram diagonal length formed by the joint connection of the hinge holes of the combined rotary piston 1 gradually changes from large to small, and then gradually from small to large. 1 &, b, c, d, e, f, g, h move along with the combined rotary piston 1, and the motion trajectory coincides with the cavity trajectory equation F (x, y, z) of the stator 3 cavity. The volume of each of the independent chambers I, II, III, IV, V, VI corresponding to each piston structural unit 13 on the combined rotary piston 1 gradually increases from the minimum to the maximum, and then changes from the maximum to the minimum. 11 sucks in the fluid, and then flows out through the extruding chamber 12 to discharge the fluid, as shown in FIG. 1. FIG. 2 is a schematic diagram of a group of parallelogram vertices of the present invention periodically moving around its center point to form a closed curve trajectory; a cavity curve equation F (x , y, z) and the curve trajectory equation of the support chute 6 are implemented according to the principle shown in FIG. 2.

Claims

权 利 要 求 书 Claim
1. 一种旋转活塞机， 其特征在于， 含有： 定子（3) 、 组合旋转活塞（1) ; 所述定子 （3) 内设有内腔体 （8) ； 所述组合旋转活塞 （1) 置于内腔体 （8) 内； 所述定子 （3) 内配有吸入室 （11) 、 压出室 （12) ； 所述吸入室 （11) 内设有一组吸入口 （9) ； 压出室 （12) 内设有一组配有单向阀片 （4) 的排出 口 （10) ； 所述吸入口 （9) 与排出口 （10) 分别与内腔体 （8) 相通； 所述组 合旋转活塞 （1) 配有四个活塞结构单元 （13) ； 所述活塞结构单元 （13) 含 有塞面 （14) 、 托架 （15) ； 所述活塞结枸单元 （13) 之间通过托架 （15) 上 的铰接销 （2) 轴接。 在所述铰接销 （2) 上配有轴承 （5) ； 所述托架 （15) 铰接孔间距连线构成平行四边形； 所述平行四边形对角线的长度大小成周期性 变化； 所述组合旋转活塞 （1) 上的塞面 （14) 端点的运动轨迹与定子 （3) 型 腔曲线轨迹方程 F (X, y， z) 相吻合； 所述组合旋转活塞 （1) 的塞面 （14) 与定于 （3) 型腔曲面配合形成各自密闭的独立腔室 （1、 II、 III、 IV、 V、 VI) 。 A rotary piston machine, comprising: a stator (3) and a combined rotary piston (1) ; the stator (3) is provided with an internal cavity (8); and the combined rotary piston (1) Placed in the inner cavity (8); the stator (3) is provided with a suction chamber (11) and a pressing-out chamber (12); a set of suction ports (9) is arranged in the suction chamber (11); The outlet (12) is provided with a set of discharge ports (10) equipped with one-way valve plates (4); the suction port (9) and the discharge port (10) communicate with the inner cavity (8) respectively; said The combined rotary piston (1) is provided with four piston structural units (13); the piston structural unit (13) includes a plug surface (14) and a bracket (15); the piston knot unit (13) passes between The hinge pin (2) on the bracket (15) is pivoted. The hinge pin (2) is provided with a bearing (5); the bracket (15) is connected by a distance between the hinge holes to form a parallelogram; the length of the diagonal of the parallelogram changes periodically; the combination The motion trajectory of the end point of the plug surface (14) on the rotary piston (1) coincides with the equation F (X, y, z) of the cavity curve trajectory of the stator (3); the plug surface (14) of the combined rotary piston (1) ) Cooperate with the surface of cavity (3) to form independent closed chambers (1, II, III, IV, V, VI).
2. 根据权利要求 1所述的旋转活塞机， 其特征在于： 在所述内腔体 （8) 轴向两侧配有支承滑道 （6) ； 所述组合旋转活塞 （1) 上的轴承 （5) 沿支承 滑道 （6) 周期性运动。  2. The rotary piston machine according to claim 1, characterized in that: a support slideway (6) is provided on both axial sides of the inner cavity (8); and a bearing on the combined rotary piston (1) (5) Periodic movement along the support slide (6).
3. 根据权利要求 1或 2所述的旋转活塞机， 其特征在于： 所述托架 （15) 为 4个。  3. The rotary piston machine according to claim 1 or 2, characterized in that the number of the brackets (15) is four.
PCT/CN2002/000141 2001-12-28 2002-03-08 Machine with rotating pistons WO2003056182A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002238360A AU2002238360A1 (en) 2001-12-28 2002-03-08 Machine with rotating pistons

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN01138948.6 2001-12-28
CN 01138948 CN1207495C (en) 2001-12-28 2001-12-28 Rotary piston machine

Publications (1)

Publication Number Publication Date
WO2003056182A1 true WO2003056182A1 (en) 2003-07-10

Family

ID=4674899

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2002/000141 WO2003056182A1 (en) 2001-12-28 2002-03-08 Machine with rotating pistons

Country Status (3)

Country Link
CN (1) CN1207495C (en)
AU (1) AU2002238360A1 (en)
WO (1) WO2003056182A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101054975B (en) * 2007-05-30 2010-05-19 白明 Rotary piston type compressor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4451215A (en) * 1980-04-16 1984-05-29 Skf Kugellagerfabriken Gmbh Rotary piston apparatus
DE3710700A1 (en) * 1986-03-31 1987-10-08 Joy Mfg Co ROTATIONAL COMPRESSOR
US5051078A (en) * 1989-07-05 1991-09-24 Lew Hyok S Rotary pump-flowmeter

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4451215A (en) * 1980-04-16 1984-05-29 Skf Kugellagerfabriken Gmbh Rotary piston apparatus
DE3710700A1 (en) * 1986-03-31 1987-10-08 Joy Mfg Co ROTATIONAL COMPRESSOR
US5051078A (en) * 1989-07-05 1991-09-24 Lew Hyok S Rotary pump-flowmeter

Also Published As

Publication number Publication date
AU2002238360A1 (en) 2003-07-15
CN1207495C (en) 2005-06-22
CN1428514A (en) 2003-07-09

Similar Documents

Publication Publication Date Title
JP5265705B2 (en) Rotary compressor
CN201568303U (en) Symmetrical balance type synchronous rotating compression machine
JPH0433997B2 (en)
CN209800192U (en) Rotary cylinder compressor
JP4823455B2 (en) Fluid machine provided with a gear and a pair of engagement gears using the gear
US7753664B2 (en) Rotary pump
WO2003056182A1 (en) Machine with rotating pistons
WO2020015284A1 (en) Pump body assembly, fluid machinery and heat exchange device
RU2458251C2 (en) Compressor
KR100669890B1 (en) A horizontal type orbiter compressor
CN2528968Y (en) Rotary piston compressor
KR100408246B1 (en) Gas discharge structure of rotary twin compressor
KR101074104B1 (en) Scroll fluid machine
KR100732841B1 (en) Scroll fluid machine
CN212454822U (en) Swing sheet type compressor
KR20080009361A (en) Compressor
CN2725577Y (en) Elliptical compression fluid transfer machinery
CN1093604C (en) Rotary fluid conveying machine
JP3777898B2 (en) Positive displacement pump
JP3596063B2 (en) Scroll compressor
RU2637281C1 (en) Two-rotor pump
JP2544777B2 (en) Scroll compressor with a bypass pipe on the discharge side
KR101086323B1 (en) Compressor
RU2200877C2 (en) Hydraulic and gas machine
KR20220079704A (en) The rotary air compressor

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ OM PH PL PT RO RU SD SE SG SI SK SL TJ TM TN TR TT TZ UA UG US UZ VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: JP

WWW Wipo information: withdrawn in national office

Country of ref document: JP