CN101368565A - Cylindrical vane compressor or vacuum pump - Google Patents

Cylindrical vane compressor or vacuum pump Download PDF

Info

Publication number
CN101368565A
CN101368565A CNA2008100633441A CN200810063344A CN101368565A CN 101368565 A CN101368565 A CN 101368565A CN A2008100633441 A CNA2008100633441 A CN A2008100633441A CN 200810063344 A CN200810063344 A CN 200810063344A CN 101368565 A CN101368565 A CN 101368565A
Authority
CN
China
Prior art keywords
rotor
cylinder
radius
sphere
housing
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
CNA2008100633441A
Other languages
Chinese (zh)
Inventor
陈行
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.)
Ningbo Jingda Machine-Electric & Technology Co., Ltd.
Original Assignee
郑良才
陈行
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 郑良才, 陈行 filed Critical 郑良才
Priority to CNA2008100633441A priority Critical patent/CN101368565A/en
Publication of CN101368565A publication Critical patent/CN101368565A/en
Pending legal-status Critical Current

Links

Images

Landscapes

  • Applications Or Details Of Rotary Compressors (AREA)
  • Rotary Pumps (AREA)

Abstract

Disclosed is a cylindrical vane-type compressor or a vacuum pump which comprises a shell body, a rotor and the same two vanes, the same four seal strips and the same two cushion blocks; the rotor is arranged at the center of the vacuum pump; the shell body is arranged externally; the vanes are arranged on both sides of the rotor, are arranged in the hollow circular rings on the opposite corners of the shell body and form certain angles with the rotor; the vanes are tangent to the truncated cone lateral side ; the seal strips are arranged between the rotor and the vanes; the plane sides of the seal strips are clung to the rotor; the cylindrical surface sides are clung to the vanes; the cushion blocks are arranged in the hollow circular rings on the opposite corners of the shell body for filling the gaps formed by the vanes, the rotor and the seal strips. The cylindrical vane-type compressor or the vacuum pump has the advantages that 1) all the sealed positions are plane seals. 2) The discharge capacity is great; the pressure and the efficiency are high. 3) The specific power is great. 4) The structure is compact and the machining is relatively easy. 5) The production cost is lower.

Description

Cylindrical vane compressor or vacuum pump
Technical field
The present invention relates to a kind of compressor or vacuum pump, relate in particular to a kind of vane compressor or vacuum pump.
Background technique
Existing vane compressor or vacuum pump structure are a rotor eccentricity and place in the cylinder block, blade radial or place in the rotor with rotor radius is angled, rotor high-speed rotation during work, blade throws away under action of centrifugal force, form Seal cage with cylinder block, volume-variation produces pressure during rotation.Blade quantity is two or multi-disc.This form compressor or vacuum pump are owing to be by the sealing of Line of contact between the blade cylinder block, so sealability is relatively poor, and delivery pressure is lower, produce very big friction when adding rotation between blade and rotor and cylinder block, cause compressor or vacuum pump overall wear fast, the life-span is short, and efficient is low.In addition, in order to guarantee that blade can safety pass in and out in rotor, rotor must have suitable diameter during rotation, and the discharge capacity that is bound to like this is less.
Summary of the invention
Technical problem to be solved by this invention be overcome the above-mentioned deficiency of prior art and provide a kind of and can realize big discharge capacity, all sealing part is face seal and nonabradable cylindrical vane compressor or vacuum pump.
The present invention solves the problems of the technologies described above the technological scheme that is adopted:
Cylindrical vane compressor or vacuum pump comprise housing, rotor, identical two blades, identical four Stamping Steel Ribbons and two identical cushion blocks; Rotor is positioned at the center, housing is positioned at the outside, blade is positioned at the both sides of rotor, and is placed in the hollow ring (guiding groove) at housing diagonal angle, with rotor at an angle, the frustum cone side of blade and rotor is tangent, Stamping Steel Ribbon is between rotor and blade, and its plane one side and rotor are fitted, and cylinder one side is then fitted with blade, cushion block is positioned at the hollow ring at housing diagonal angle, just in time fills up the vacancy that is formed by blade, rotor and Stamping Steel Ribbon.
Above-mentioned blade approximate half-circular, A1 is parallel plane with B1, width of blade equates with the hollow ring width of housing, C1 is that the center is O1 radius and the identical cylinder of housing cylinder E3 radius, D1 is that the centre of sphere is O1 radius and the identical sphere of rotor billiard table C2 radius, E1 is a cylinder, and the E1 cylinder is a central shaft with the symmetry axis of crossing the centre of sphere, is radius with O1K1;
The Stamping Steel Ribbon upside is the cylinder that a radius equates with blade cylinder E1 radius, downside is the plane, the perpendicular distance on centre of sphere O1 and this plane is half of rotor slab-thickness, G1 is that the centre of sphere is the sphere that the O1 radius equates with rotor center billiard table C2 radius, F1 is the centre of sphere equals rotor line segment O2M2 for the O1 radius a sphere, two faces of H1 and I1 are parallel planes, its half long OP1 equates with housing cylinder F3 radius, width equates with width of blade, R1 and the S1 inclined-plane that to be two gradients equate for the gradient of B3 with face D3;
Blade and Stamping Steel Ribbon are axisymmetric;
It in the middle of the rotor the parallel dolioform billiard table that cuts out two spherical crowns in two, billiard table is middle as inserting one flat plate, cydariform billiard table two is two identical round platforms, A2 is parallel disk with B2, R2 also is parallel disk with S2, C2 and D2 are that the centre of sphere is the sphere of O2, I2 is parallel plate level with J2, E2 is that central shaft is crossed O2 radius and the identical cylinder of housing cylinder F3 radius with F2, G2 is two identical frustum cone sides with H2, two ends were respectively disk A2 and disk R2 to one side round platform up and down, two ends were respectively disk B2 and disk S2 to the opposite side round platform up and down, the spatial position of two frustum cone side G2 and H2 is with following and decide: guarantee to assemble back two frustum cone side G2 and H2 and corresponding housing annulus parallel plane C3 and D3 and fit, whole rotor also is an axisymmetric not only about billiard table center O 2 symmetries;
Housing is the parallel dolioform sphere that cuts out two spherical crowns in two, thickness equates with the width K2M2 of rotor, A3 is parallel disk with B3, F3 is a cylinder, its central shaft is crossed O3, the radius of outside E2 and F2 cylinder equates about radius and rotor, the diagonal angle of housing cylinder is a hollow ring, the annulus width equates with vane thickness, C3 is parallel disk with D3, E3 is that the center is the cylinder of O3, its external diameter equates with the external diameter of blade cylinder C1, and greater than the external diameter of housing cylinder F3, the spatial position on C3 that annulus is parallel and D3 two planes is with following and decide: guarantee to assemble back C3 and D3 two planes and fit with corresponding rotor two frustum cone side G2 and H2, the sphere of L3I3J3 is an air inlet face, the position of I3J3 is the position on plane, the dull and stereotyped right side of rotor when vertical position shown in rotor forwards to, the sphere of K3G3H3 is a deflation area, and decide on exhaust pressure the position of G3H3, and whole housing is about billiard table center O 3 symmetries;
Cushion block is one section annulus, outside A4 is the cylinder that radius equates with housing diagonal angle annulus E3 external diameter, inboard B4 is the sphere that radius equals rotor 2 line segment O2M2, thickness equates with the rotor slab-thickness, two waist C4 and D4 are the cylinders that radius equates with the radius of blade bottom surface cylinder E1, and cushion block is shaped as axisymmetric.
Further, the sphere G1 of described Stamping Steel Ribbon also can be the cylinder that radius is OL, and the appropriate section of rotor sphere C2 of Pei Heing and D2 also is the equal cylinder of radius with it.
Further, also can lay a circle ball between described blade cylinder C1 and housing cylinder E3.
Compared with prior art, the invention has the advantages that:
1) all sealing part are face seal.
2) discharge capacity is big, pressure height, efficient height.
3) specific power is big.
4) compact structure, processing is relatively easy.
5) cost of production is lower.
6) not easy to wear, the life-span is long.
Description of drawings
Fig. 1 a and Fig. 1 b are blade of the present invention and Stamping Steel Ribbon shape schematic representation;
Fig. 2 a is a rotor shapes schematic representation of the present invention;
Fig. 2 b is the W-W generalized section of Fig. 2 a;
Fig. 3 a, Fig. 3 b are hull shape schematic representation of the present invention;
Fig. 3 c is the M-M generalized section of Fig. 4 b;
Fig. 4 a is an overall structure schematic representation of the present invention;
Fig. 4 b is that the K of Fig. 4 a is to schematic representation;
Fig. 4 c is the N-N generalized section of Fig. 4 a;
Fig. 5 is a structural representation of the present invention;
Fig. 6 a is the U-U generalized section of Fig. 5 a;
Fig. 6 c is the V-V generalized section of Fig. 5;
Fig. 6 b and 6d are working procedure principle schematic of the present invention;
Among the figure: 1. housing, 2. rotor, 3. blade, 4. Stamping Steel Ribbon, 5 cushion blocks.
Embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
Structure of the present invention as shown in Figure 5, rotor 2 is positioned at the center, housing 1 is positioned at the outside, blade 3 is positioned at the both sides of rotor 2, and be placed in the hollow ring (guiding groove) at housing 1 diagonal angle, with rotor 2 at an angle, blade 3 is tangent with the frustum cone side of rotor 2, Stamping Steel Ribbon 4 is between rotor 2 and blade 3, its plane one side and rotor 2 are fitted, cylinder one side is then fitted with blade 3, cushion block 5 be positioned at housing 1 diagonal angle hollow ring, just in time fill up the vacancy that forms by blade 3, rotor 2 and Stamping Steel Ribbon 4.
Fig. 1 a and Fig. 1 b are depicted as the shape of blade 3 of the present invention and Stamping Steel Ribbon 4.Blade 3 approximate half-circular, have identical two, wherein a slice A1 is parallel plane with B1, blade 3 width equate with the hollow ring width of Fig. 3 b housing 1, C1 is that the center is O1 radius and the identical cylinder of housing 1 cylinder E3 radius, and D1 is that the centre of sphere is O1 radius and the identical sphere of rotor 2 billiard table C2 radiuses, and E1 is a cylinder, the E1 cylinder is a central shaft with the symmetry axis of crossing the centre of sphere, is radius with O1K1.Stamping Steel Ribbon 4 has identical four, wherein a upside is the cylinder that a radius equates with blade 3 cylinder E1 radiuses, downside is the plane, the perpendicular distance on centre of sphere O1 and this plane is half of rotor 2 slab-thicknesses, G1 is that the centre of sphere is the sphere that the O1 radius equates with rotor center billiard table C2 radius, F1 is the centre of sphere equals Fig. 2 a rotor line segment O2M2 for the O1 radius a sphere, two faces of H1 and I1 are parallel planes, its half long OP1 equates with Fig. 3 b housing 1 cylinder F3 radius, width equates with blade 3 width, R1 and S1 be two gradients with Fig. 3 b in the inclined-plane that equates for the gradient of B3 of face D3.Blade 3 and Stamping Steel Ribbon 4 are axisymmetric.
Fig. 2 a and Fig. 2 b are depicted as the shape of rotor 2 of the present invention.It in the middle of the rotor 2 the parallel dolioform billiard table that cuts out two spherical crowns in two, billiard table is middle as inserting one flat plate, cydariform billiard table two is two identical round platforms, A2 is parallel disk with B2, R2 also is parallel disk with S2, C2 and D2 are that the centre of sphere is the sphere of O2, I2 is parallel plate level with J2, E2 is that central shaft is crossed O2 radius and the identical cylinder of housing 1 cylinder F3 radius with F2, G2 is two identical frustum cone sides with H2, two ends were respectively disk A2 and disk R2 to one side round platform up and down, two ends were respectively disk B2 and disk S2 to the opposite side round platform up and down, the spatial position of two frustum cone side G2 and H2 is with following and decide: guarantee to assemble back two frustum cone side G2 and H2 and corresponding housing 1 annulus parallel plane C3 and D3 and fit, whole rotor 2 also is an axisymmetric not only about billiard table center O 2 symmetries.
Fig. 3 a, Fig. 3 b and Fig. 3 c are depicted as the shape of housing 1 of the present invention.Housing 1 is the parallel dolioform sphere that cuts out two spherical crowns in two, thickness equates with the width K2M2 of rotor 2, A3 is parallel disk with B3, F3 is a cylinder, its central shaft is crossed O3, radius equates with the radius of rotor about 2 outside cylinder E2 and F2, the diagonal angle of housing 1 cylinder is a hollow ring, the annulus width equates with blade 3 thickness, C3 is parallel disk with D3, E3 is the cylinder of central shaft by O3, its external diameter equates with the external diameter of blade 3 cylinder C1, and greater than the external diameter of housing 1 sphere F3, the spatial position on C3 that annulus is parallel and D3 two planes is with following and decide: guarantee to assemble back C3 and D3 two planes and fit with corresponding 2 liang of frustum cone side G2 of rotor and H2, the sphere of L3I3J3 is an air inlet face, the position of I3J3 is the position on plane, rotor 2 dull and stereotyped right side when rotor 2 forwards vertical position shown in Fig. 3 b to, the sphere of K3G3H3 is a deflation area, and decide on exhaust pressure the position of G3H3, and whole housing 1 is about billiard table center O 3 symmetries.
Be the shape of cushion block 5 of the present invention among Fig. 4 c, it is one section annulus, have identical two, wherein an outside A4 is the cylinder that radius equates with housing diagonal angle annulus E3 external diameter, interior survey B4 is the sphere that radius equals Fig. 2 a rotor 2 line segment O2M2, thickness equates that with rotor 2 slab-thicknesses two waist C4 and D4 are the cylinders that radius equates with the radius of blade 3 bottom surface cylinder E1.Cushion block 5 is shaped as axisymmetric.
Operation working principle of the present invention is as follows:
As Fig. 6 c, at an end of compressor and vacuum pump, rotor 2, blade 3, Stamping Steel Ribbon 4 and housing 1 are divided into three independently Seal cage Q1, Q2 and Q3 separately with air cavity.When rotor 2 when Fig. 4 a or 6a position turn clockwise, chamber Q2 begins air-breathing, Q3 is an air aspiration cavity, Q1 is a compression chamber, as Fig. 6 b.Rotor 2 continues rotation clockwise, and air aspiration cavity Q2 and Q3 constantly enlarge, and compression chamber Q1 constantly dwindles.When forwarding Fig. 5 or Fig. 6 c position to, it is maximum that air aspiration cavity Q3 reaches.At this moment, air aspiration cavity Q2 and Q3 and compression chamber Q1 still keep isolating.When rotor 2 continued rotation, chamber Q3 began compression, and at this moment chamber Q2 still is an air aspiration cavity, and chamber Q1 still is a compression chamber.When rotor 2 continued to rotate to Fig. 6 d position, compression chamber Q1 began exhaust.When rotor 2 forwarded Fig. 4 a or 6a position to, chamber Q1 gas drained, and at this moment chamber Q2 still is an air aspiration cavity, and chamber Q3 still is a compression chamber.When rotor 2 continuation rotations, new air aspiration cavity begins air-breathing, and chamber Q2 is also air-breathing, and chamber Q3 is also in compression.When rotor 2 forwarded Fig. 6 c position again to, it is maximum that air aspiration cavity Q2 reaches, and begins compression then, and at this moment, new air aspiration cavity is still air-breathing, and chamber Q3 is still in compression.So go round and begin again.At the other end of compressor and vacuum pump, situation is also identical with this end.

Claims (4)

1. cylindrical vane compressor or vacuum pump is characterized in that: comprise housing, rotor, identical two blades, identical four Stamping Steel Ribbons and two identical cushion blocks; Rotor is positioned at the center, housing is positioned at the outside, blade is positioned at the both sides of rotor, and is placed in the hollow ring at housing diagonal angle, with rotor at an angle, the frustum cone side of blade and rotor is tangent, Stamping Steel Ribbon is between rotor and blade, and its plane one side and rotor are fitted, and cylinder one side is then fitted with blade, cushion block is positioned at the hollow ring at housing diagonal angle, just in time fills up the vacancy that is formed by blade, rotor and Stamping Steel Ribbon.
2. cylindrical vane compressor as claimed in claim 1 or vacuum pump, it is characterized in that: described blade approximate half-circular, A1 is parallel plane with B1, width of blade equates with the hollow ring width of housing, C1 is that the center is O1 radius and the identical cylinder of housing cylinder E3 radius, and D1 is that the centre of sphere is O1 radius and the identical sphere of rotor billiard table C2 radius, and E1 is a cylinder, the E1 cylinder is a central shaft with the symmetry axis of crossing the centre of sphere, is radius with O1K1;
Described Stamping Steel Ribbon upside is the cylinder that a radius equates with blade cylinder E1 radius, downside is the plane, the perpendicular distance on centre of sphere O1 and this plane is half of rotor slab-thickness, G1 is that the centre of sphere is the sphere that the O1 radius equates with rotor center billiard table C2 radius, F1 is the centre of sphere equals rotor line segment O2M2 for the O1 radius a sphere, two faces of H1 and I1 are parallel planes, its half long OP1 equates with housing cylinder F3 radius, width equates with width of blade, R1 and the S1 inclined-plane that to be two gradients equate for the gradient of B3 with face D3;
Described blade and Stamping Steel Ribbon are axisymmetric;
It in the middle of the described rotor the parallel dolioform billiard table that cuts out two spherical crowns in two, billiard table is middle as inserting one flat plate, cydariform billiard table two is two identical round platforms, A2 is parallel disk with B2, R2 also is parallel disk with S2, C2 and D2 are that the centre of sphere is the sphere of O2, I2 is parallel plate level with J2, E2 is that central shaft is crossed O2 radius and the identical cylinder of housing cylinder F3 radius with F2, G2 is two identical frustum cone sides with H2, two ends were respectively disk A2 and disk R2 to one side round platform up and down, two ends were respectively disk B2 and disk S2 to the opposite side round platform up and down, the spatial position of two frustum cone side G2 and H2 is with following and decide: guarantee to assemble back two frustum cone side G2 and H2 and corresponding housing annulus parallel plane C3 and D3 and fit, whole rotor also is an axisymmetric not only about billiard table center O 2 symmetries;
Housing is the parallel dolioform sphere that cuts out two spherical crowns in two, thickness equates with the width K2M2 of rotor, A3 is parallel disk with B3, F3 is a cylinder, its central shaft is crossed O3, the radius of outside E2 and F2 cylinder equates about radius and rotor, the diagonal angle of housing cylinder is a hollow ring, the annulus width equates with vane thickness, C3 is parallel disk with D3, E3 is that the center is the cylinder of O3, its external diameter equates with the external diameter of blade cylinder C1, and greater than the external diameter of housing cylinder F3, the spatial position on C3 that annulus is parallel and D3 two planes is with following and decide: guarantee to assemble back C3 and D3 two planes and fit with corresponding rotor two frustum cone side G2 and H2, the sphere of L3I3J3 is an air inlet face, the position of I3J3 is the position on plane, the dull and stereotyped right side of rotor when vertical position shown in rotor forwards to, the sphere of K3G3H3 is a deflation area, and decide on exhaust pressure the position of G3H3, and whole housing is about billiard table center O 3 symmetries;
Cushion block is one section annulus, outside A4 is the cylinder that radius equates with housing diagonal angle annulus E3 external diameter, inboard B4 is the sphere that radius equals rotor line segment O2M2, thickness equates with the rotor slab-thickness, two waist C4 and D4 are the cylinders that radius equates with the radius of blade bottom surface cylinder E1, and cushion block is shaped as axisymmetric.
3. cylindrical vane compressor as claimed in claim 2 or vacuum pump is characterized in that: the sphere G1 of described Stamping Steel Ribbon is that radius is the cylinder of OL, and the appropriate section of rotor sphere C2 of Pei Heing and D2 is the cylinder that radius equates with it.
4. as claim 2 or 3 described cylindrical vane compressor or vacuum pumps, it is characterized in that: lay a circle ball between described blade cylinder C1 and housing cylinder E3.
CNA2008100633441A 2008-08-08 2008-08-08 Cylindrical vane compressor or vacuum pump Pending CN101368565A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNA2008100633441A CN101368565A (en) 2008-08-08 2008-08-08 Cylindrical vane compressor or vacuum pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNA2008100633441A CN101368565A (en) 2008-08-08 2008-08-08 Cylindrical vane compressor or vacuum pump

Publications (1)

Publication Number Publication Date
CN101368565A true CN101368565A (en) 2009-02-18

Family

ID=40412531

Family Applications (1)

Application Number Title Priority Date Filing Date
CNA2008100633441A Pending CN101368565A (en) 2008-08-08 2008-08-08 Cylindrical vane compressor or vacuum pump

Country Status (1)

Country Link
CN (1) CN101368565A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102536803A (en) * 2011-12-30 2012-07-04 浙江大学 Shell oil distribution type cylindrical blade hydraulic pump
CN102536625A (en) * 2011-12-30 2012-07-04 浙江大学 Cylindrical vane hydraulic motor
CN102562167A (en) * 2011-12-30 2012-07-11 浙江大学 Shell air distribution type columnar blade pneumatic motor
CN103670519A (en) * 2013-12-16 2014-03-26 浙江大学 Multiple-blade pneumatic motor
CN103671098A (en) * 2013-12-16 2014-03-26 浙江大学 Multiple-blade compressor
CN103671111A (en) * 2013-12-16 2014-03-26 浙江大学 Vane type gas compressor
CN103883355A (en) * 2013-12-16 2014-06-25 浙江大学 Multi-blade type pneumatic motor
CN103883356A (en) * 2013-12-16 2014-06-25 浙江大学 Blade pneumatic motor

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102536803A (en) * 2011-12-30 2012-07-04 浙江大学 Shell oil distribution type cylindrical blade hydraulic pump
CN102536625A (en) * 2011-12-30 2012-07-04 浙江大学 Cylindrical vane hydraulic motor
CN102562167A (en) * 2011-12-30 2012-07-11 浙江大学 Shell air distribution type columnar blade pneumatic motor
CN102536803B (en) * 2011-12-30 2015-04-29 浙江大学 Shell oil distribution type cylindrical blade hydraulic pump
CN102536625B (en) * 2011-12-30 2015-04-29 浙江大学 Cylindrical vane hydraulic motor
CN103670519A (en) * 2013-12-16 2014-03-26 浙江大学 Multiple-blade pneumatic motor
CN103671098A (en) * 2013-12-16 2014-03-26 浙江大学 Multiple-blade compressor
CN103671111A (en) * 2013-12-16 2014-03-26 浙江大学 Vane type gas compressor
CN103883355A (en) * 2013-12-16 2014-06-25 浙江大学 Multi-blade type pneumatic motor
CN103883356A (en) * 2013-12-16 2014-06-25 浙江大学 Blade pneumatic motor
CN103671098B (en) * 2013-12-16 2016-03-30 浙江大学 A kind of Multiple-blade compressor
CN103671111B (en) * 2013-12-16 2016-03-30 浙江大学 A kind of leaf gas compressor

Similar Documents

Publication Publication Date Title
CN101344085A (en) Vane compressor or vacuum pump
CN101368565A (en) Cylindrical vane compressor or vacuum pump
CN101338752A (en) Compressor or vacuum pump
CN101418793A (en) High performance hydraulic pump
CN101418772A (en) Spherical hydraulic motor
CN101368566A (en) Cylindrical compressor or vacuum pump
CN101418771A (en) High performance hydraulic motor
CN101418795A (en) High performance hydraulic pump
CN103671098B (en) A kind of Multiple-blade compressor
CN101418773B (en) High performance spherical hydraulic motor
CN101418792A (en) High performance spherical hydraulic pump
CN101418770A (en) High performance hydraulic motor
CN101418794A (en) Spherical hydraulic pump
CN102562581A (en) Spherical vane type hydraulic pump
CN201255112Y (en) Column vane compressor or vacuum pump
CN201232635Y (en) Compressor or vacuum pump
CN201255111Y (en) Column compressor or vacuum pump
CN102536803B (en) Shell oil distribution type cylindrical blade hydraulic pump
CN102852791B (en) Housing gas distribution-type cylindrical vane compressor
CN102562580A (en) Spherical vane hydraulic pump with oil discharging on shell
CN102536804A (en) Cylindrical vane hydraulic pump
CN102536816A (en) Spherical blade compressor
CN103671096A (en) Vane type hydraulic pump
CN103671095A (en) Multiple-blade hydraulic pump
CN103671111B (en) A kind of leaf gas compressor

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
ASS Succession or assignment of patent right

Owner name: NINGBO JINGDA MACHINE-ELECTRIC SCIENCE + TECHNOLOG

Free format text: FORMER OWNER: ZHENG LIANGCAI

Effective date: 20100927

Free format text: FORMER OWNER: CHEN XING

C41 Transfer of patent application or patent right or utility model
COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; FROM: 315033 NINGBO JINGDA ELECTRICAL TECHNOLOGY CO., LTD., NO.191, CHANGYANG ROAD, HONGTANG TOWN, JIANGBEI DISTRICT, NINGBO CITY, ZHEJIANG PROVINCE TO: 315033

TA01 Transfer of patent application right

Effective date of registration: 20100927

Address after: 315033 Zhejiang province Ningbo Hongtang town Jiangbei District Changyang Road No. 191

Applicant after: Ningbo Jingda Machine-Electric & Technology Co., Ltd.

Address before: 315033 Zhejiang province Ningbo Hongtang town Jiangbei District No. 191 Changyang Road, Ningbo Jingda Electromechanical Technology Co. Ltd.

Applicant before: Zheng Liangcai

Co-applicant before: Chen Xing

C12 Rejection of a patent application after its publication
RJ01 Rejection of invention patent application after publication

Open date: 20090218