CN103711637B - A kind of Multiple-blade type oil motor - Google Patents
A kind of Multiple-blade type oil motor Download PDFInfo
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- CN103711637B CN103711637B CN201310690099.8A CN201310690099A CN103711637B CN 103711637 B CN103711637 B CN 103711637B CN 201310690099 A CN201310690099 A CN 201310690099A CN 103711637 B CN103711637 B CN 103711637B
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Abstract
The invention discloses a kind of Multiple-blade type oil motor, it comprises housing, rotor, blade, Stamping Steel Ribbon and cushion block, rotor is positioned at center, housing is positioned at outside, blade is placed in the hollow ring at housing diagonal angle, also be positioned at the groove of rotor simultaneously, and with rotor at an angle, a plane of blade and the frustum cone side of rotor tangent, Stamping Steel Ribbon is between rotor and blade, its plane side and rotor are fitted, then fit with the round table surface E1 of blade in round table surface side, cushion block is positioned at the hollow ring at housing diagonal angle, just in time fill up by housing, blade, the vacancy that rotor and Stamping Steel Ribbon are formed.All sealings place of the present invention are face sealing; Volume is little, and moment of torsion is large, and efficiency is high; Specific power is large; Compact structure, processing is relatively easy; Cost is lower, and the life-span is long.
Description
Technical field
The present invention relates to oil hydraulic motor, particularly relate to a kind of Multiple-blade type oil motor.
Background technique
Existing vane motor structure is a rotor eccentricity and is placed in cylinder body, blade radial or be placed in rotor with rotor radius is angled, during work, blade throws away under the effect of spring or oil pressure, Seal cage is formed with cylinder body, this form vane motor is owing to being by the sealing of Line of contact between blade and cylinder body, therefore sealability is poor, output torque is lower, very large friction is produced between blade and rotor and cylinder body when adding rotation, cause vane motor overall wear fast, life-span is short, and efficiency is low.In addition, in order to ensure that blade safety can pass in and out in rotor during rotation, rotor must have suitable diameter, volume be bound to so greatly, and specific power is low, although there is Double-blade type oil hydraulic motor, but owing to only having two panels blade, output torque pulsation is comparatively large, output torque also owes large.
Summary of the invention
The object of this invention is to provide one and can realize specific power greatly, output torque is large, and output torque pulsation is little again, and whole sealing place is again face sealing, and nonabradable Multiple-blade type oil motor.
In order to achieve the above object, the technical solution used in the present invention is as follows: a kind of Multiple-blade type oil motor, comprise housing, rotor, blade, Stamping Steel Ribbon and cushion block, rotor is positioned at center, housing is positioned at outside, blade is placed in the hollow ring at housing diagonal angle, also be positioned at the groove of rotor simultaneously, and with rotor at an angle, a plane of blade and the frustum cone side of rotor tangent, Stamping Steel Ribbon is between rotor and blade, its plane side and rotor are fitted, then fit with the round table surface E1 of blade in round table surface side, cushion block is positioned at the hollow ring at housing diagonal angle, just in time fill up by housing, blade, the vacancy that rotor and Stamping Steel Ribbon are formed.
In above-mentioned a kind of Multiple-blade type oil motor, described blade is quadrant shape, total identical four, and wherein a slice blade is enclosed by two plane A1, B1 and cylinder C1, sphere D1 and two round table surface E1, J1 and forms; Wherein, the cylinder that C1 is center is centre of sphere O1, radius is identical with the radius of the cylinder E3 of the hollow ring of housing, D1 is the centre of sphere is the sphere that O1 radius is identical with rotor billiard table C2 radius, E1 and J1 is round table surface, the diameter of its upper bottom surface and bottom surface is straight line R1S1 and straight line M1N1, M1R1 and N1S1 is respectively then its side bus; Two plane A1 are parallel with B1; The distance of two parallel plane A1 and B1 is the thickness of blade, and vane thickness is equal with the hollow ring width of housing;
Described Stamping Steel Ribbon has identical eight, wherein an E1 side is round table surface, the diameter of its upper bottom surface and bottom surface is straight line R1S1 and P1Q1 respectively, P1R1 and N1S1 is then its side bus, K1 side is plane, cross axis and this plane parallel of centre of sphere O1, its perpendicular distance is the half of the orthogonal four-bladed vane thickness of slab of rotor, G1 is the centre of sphere is the sphere that O1 radius is equal with rotor center billiard table C2 radius, F1 is the centre of sphere is the sphere that O1 radius equals rotor line segment O2M2, H1 with I1 two faces are parallel planes, its half long OP1 is equal with housing cylinder F3 radius, width is equal with width of blade, R1 and S1 is two gradients with middle D3 for the equal inclined-plane of the gradient of B3, the width of Stamping Steel Ribbon is equal with vane thickness, blade and Stamping Steel Ribbon are axisymmetric,
It is the parallel dolioform billiard table cutting out two spherical crowns in two in the middle of described rotor, an orthogonal four-bladed vane is inserted as symmetry in the middle of billiard table, cydariform billiard table two is two identical hollow round tables, A2 with B2 is parallel disk, R2 with S2 is also parallel disk, the sphere of C2 and D2 to be the centre of sphere be O2, I2 and J2 is orthogonal two planes, in a blade and two the Stamping Steel Ribbon arranged orthogonal groove between I2 and J2, just in time completely closely sealed, E2 with F2 is that central shaft crosses the O2 radius cylinder identical with housing cylinder F3 radius, G2 with H2 is two identical hollow round table surface, side round platform upper and lower two ends are disk A2 and disk R2 respectively, opposite side round platform upper and lower two ends are disk B2 and disk S2 respectively, the length of straigh line of K2M2 is the width of rotor, two frustum cone side G2 and H2 and corresponding housing hollow ring parallel plane C3 and D3 fit, whole rotor is not only symmetrical about billiard table center O2, also be axisymmetric,
Described housing is the parallel dolioform sphere cutting out two spherical crowns in two, thickness is equal with the width K2M2 of rotor, A3 with B3 is the parallel disk that two radiuses are equal, F3 is cylinder, its central shaft crosses O3, radius is equal with the radius of outside E2 and F2 cylinder about rotor, the diagonal angle of housing cylinder is a hollow ring, annular width is equal with vane thickness, two side C3 with D3 of hollow ring are parallel circular planes, E3 is the cylinder of central shaft by O3, be positioned on the diagonal of housing, its external diameter is equal with the external diameter of blade cylinder C1, and be greater than the external diameter of housing cylinder F3, C3 and D3 two plane that annulus is parallel and corresponding rotor two hollow round table side G2 and H2 fit, whole housing is symmetrical about billiard table center O3,
Described cushion block is one section of annulus, total identical four, wherein an outside A4 is the cylinder that radius is equal with housing diagonal angle annulus E3 external diameter, inner side B4 is the sphere that radius equals rotor line segment O2M2, its upper and lower thickness four-bladed vane width K2M2 orthogonal with rotor is equal, and two waist C4 and D4 are round table surface, and the diameter of this round table surface upper bottom surface and bottom surface is straight line P1Q1 and M1N1 respectively, M1P1 is then its side bus, and cushion block shape is axisymmetric.
The advantage that the present invention has is:
1) all sealings place are face sealing;
2) volume is little, and moment of torsion is large, and efficiency is high;
3) specific power is large;
4) compact structure, processing is relatively easy;
5) cost is lower, and the life-span is long.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 is blade of the present invention and Stamping Steel Ribbon schematic shapes;
Fig. 2 is the left view of Fig. 1;
Fig. 3 be Fig. 1 S to T to schematic diagram;
Fig. 4 is rotor shapes schematic diagram of the present invention;
Fig. 5 is the W-W generalized section of Fig. 4;
Fig. 6 is the plan view of housing of the present invention;
Fig. 7 is the plan view of housing of the present invention;
Fig. 8 is the M-M generalized section of Fig. 7;
Fig. 9 is overall structure schematic diagram of the present invention;
Figure 10 is that the K of Fig. 9 is to schematic diagram;
Figure 11 is the N-N generalized section of Fig. 9;
Figure 12 is running principle schematic diagram of the present invention;
Figure 13 is the U-U generalized section of Fig. 9;
Figure 14 is working procedure principle schematic of the present invention;
Figure 15 is the V-V generalized section of Figure 12;
Figure 16 is working procedure principle schematic of the present invention.
In figure: 1. housing, 2. rotor, 3. blade, 4. Stamping Steel Ribbon, 5 cushion blocks.
Embodiment
Structure of the present invention as shown in figure 12, rotor 2 is positioned at center, housing 1 is positioned at outside, blade 3 is placed in the hollow ring (guiding groove) at housing 1 diagonal angle, also be positioned at the groove of rotor 2 simultaneously, and with rotor 2 at an angle, a plane of blade 3 and the frustum cone side of rotor 2 tangent, Stamping Steel Ribbon 4 is between rotor 2 and blade, its plane side and rotor 2 are fitted, then fit with the round table surface E1 of blade 3 in round table surface side, cushion block 5 is positioned at the hollow ring at housing 1 diagonal angle, just in time fills up the vacancy formed by housing 1, blade 3, rotor 2 and Stamping Steel Ribbon 4.
Fig. 1 and the shape that Figure 3 shows that blade 3 of the present invention and Stamping Steel Ribbon 4.Blade 3 is quadrant shape or approximate quadrant shape, total identical four, and wherein a slice blade 3 is enclosed by two plane A1, B1 and cylinder C1, sphere D1 and two round table surface E1, J1 and forms; Wherein, the cylinder that C1 is center is centre of sphere O1, radius is identical with the radius of the cylinder E3 of the hollow ring of housing 1, D1 is the centre of sphere is the sphere that O1 radius is identical with Fig. 5 rotor 2 billiard table C2 radius, E1 and J1 is round table surface, the diameter of its upper bottom surface and bottom surface is straight line R1S1 and straight line M1N1, M1R1 and N1S1 is respectively then its side bus; Two plane A1 are parallel with B1; The distance of two parallel plane A1 and B1 is the thickness of blade 3, and blade 3 thickness is equal with the hollow ring width of Fig. 7 housing 1.
Stamping Steel Ribbon 4 has identical eight, wherein an E1 side is round table surface, the diameter of its upper bottom surface and bottom surface is straight line R1S1 and P1Q1 respectively, P1R1 and N1S1 is then its side bus, K1 side is plane, cross the axis (as shown in Figure 1) of centre of sphere O1 and this plane parallel, its perpendicular distance is the half of the orthogonal four-bladed vane thickness of slab of Fig. 4 rotor 2, G1 is the centre of sphere is the sphere that O1 radius is equal with Fig. 5 rotor 2 center billiard table C2 radius, F1 is the centre of sphere is the sphere that O1 radius equals Fig. 4 rotor 2 line segment O2M2, H1 with I1 two faces are parallel planes, its half long OP1 and Fig. 7 housing 1 cylinder F3 radius is equal, width is equal with blade 3 width, R1 and S1 is two gradients with face D3 in Fig. 7 for the equal inclined-plane of the gradient of B3.The width (i.e. the distance of plane H1 and I1) of Stamping Steel Ribbon 4 is equal with blade 3 thickness; Blade 3 and Stamping Steel Ribbon 4 are axisymmetric.
Fig. 4 and the shape that Figure 5 shows that rotor 2 of the present invention.It is the parallel dolioform billiard table cutting out two spherical crowns in two in the middle of rotor 2, an orthogonal four-bladed vane is inserted as symmetry in the middle of billiard table, cydariform billiard table two is two identical hollow round tables, A2 with B2 is parallel disk, R2 with S2 is also parallel disk, the sphere of C2 and D2 to be the centre of sphere be O2, I2 and J2 is orthogonal two planes, by the whole figure of Fig. 1, namely in a blade 3 and two the Stamping Steel Ribbon 4 arranged orthogonal groove between I2 and J2, just in time completely closely sealed, E2 with F2 is that central shaft crosses the O2 radius cylinder identical with housing 1 cylinder F3 radius, G2 with H2 is two identical hollow round table surface, side round platform upper and lower two ends are disk A2 and disk R2 respectively, opposite side round platform upper and lower two ends are disk B2 and disk S2 respectively, the length of straigh line of K2M2 is the width of rotor 2, the spatial position of two frustum cone side G2 and H2 is to determine as follows: ensure that assembling rear two frustum cone side G2 and H2 and corresponding housing 1 hollow ring parallel plane C3 and D3 fits, whole rotor 2 is not only symmetrical about billiard table center O2, also be axisymmetric.
Fig. 6, Fig. 7 and Figure 8 shows that the shape of housing 1 of the present invention.Housing 1 is the parallel dolioform sphere cutting out two spherical crowns in two, thickness is equal with the width K2M2 of rotor 2, A3 with B3 is the parallel disk that two radiuses are equal, F3 is cylinder, its central shaft crosses O3, radius is equal with the radius of rotor about 2 outside E2 and F2 cylinder, the diagonal angle of housing 1 cylinder is a hollow ring, annular width is equal with blade 3 thickness, two side C3 with D3 of hollow ring are parallel circular planes, E3 is the cylinder of central shaft by O3, be positioned on the diagonal of housing 1, its external diameter is equal with the external diameter of blade 3 cylinder C1, and be greater than the external diameter of housing 1 cylinder F3, the spatial position of C3 and D3 two plane that annulus is parallel is to determine as follows: guarantee assembles rear C3 and D3 two plane and corresponding rotor 2 liang of hollow round table side G2 and H2 fit, the sphere of K3G3H3 is oil-feed face, the position of G3H3 is the position of rotor 2 flat board when rotor 2 forwards position shown in Figure 14 between Q3 and Q4 of chamber by Q4 side plane, the sphere of L3I3J3 is oil extraction face, the position of I3J3 is the position of rotor 2 flat board when rotor 2 forwards position shown in Figure 14 between Q4 and Q5 of chamber by Q5 side plane.Whole housing 1 is symmetrical about billiard table center O3.
Figure 11 shows that the shape of cushion block 5 of the present invention.Cushion block 5 is one section of annulus, total identical four, wherein an outside A4 is the cylinder that radius is equal with housing 1 diagonal angle annulus E3 external diameter, inner side B4 is the sphere that radius equals Fig. 4 rotor 2 line segment O2M2, its upper and lower thickness four-bladed vane width K2M2 orthogonal with rotor 2 is equal, and two waist C4 and D4 are round table surface, the diameter of this round table surface upper bottom surface and bottom surface be respectively straight line P1Q1 and M1N1(as shown in Figure 1), M1P1 is then its side bus, and cushion block 5 shape is axisymmetric.
Operation working principle of the present invention is as follows:
As shown in figure 14, in one end of oil hydraulic motor, oil pocket is divided into five respective independently Seal cage Q1, Q2, Q3, Q4 and Q5 by rotor 2, blade 3, Stamping Steel Ribbon 4 and housing 1.
In one end of rotor 2, when rotor 2 is in oil-feed initial position (as Figure 13), high pressure oil enters oil pocket Q1 from the oil-feed face of joining oil cone, as Figure 14, at this moment oil pocket Q4 and Q5 is filled with high pressure oil, and oil pocket Q2 and Q3 is then low pressure oil, the pressure reduction that five oil pockets are formed, rotor 2 produces moment of torsion, rotor 2 is rotated counterclockwise, then promote blade 3 and be rotated counterclockwise.When rotor 2 is rotated counterclockwise, the low pressure oil in oil pocket Q2 and Q3 is discharged by the oil extraction face of joining oil cone.When high pressure oil continues to enter oil pocket Q1, Q4 and Q5 from the oil-feed face of joining oil cone, rotor 2 continues to be rotated counterclockwise.
When rotor 2 forwards Figure 14 position to, and when continuing to be rotated counterclockwise, oil pocket Q4 becomes low pressure oil-discharging cavity then from high pressure oil suction chamber, and high pressure oil then continues to enter oil pocket Q1 and Q5, and oil pocket Q2 and Q3 is still low pressure oil-discharging cavity.The moment of torsion that oil pressure difference produces continues drive rotor 2 and is rotated counterclockwise, when rotor 2 rotates counterclockwise Figure 15 position, low pressure oil in oil-discharging cavity Q2 drains, and Q1 and Q5 is still high pressure oil suction chamber, Q3 and Q4 is still low pressure oil-discharging cavity, at this moment high pressure oil enters new high pressure oil suction chamber from the oil-feed face of joining oil cone again, and drive rotor 2 continues to be rotated counterclockwise.
When rotor 2 rotates to Figure 16 position and continues to rotate, chamber Q5 becomes low pressure oil-discharging cavity then from high pressure oil suction chamber, and at this moment Q1 is still high pressure oil suction chamber, Q3 and Q4 is still low pressure oil-discharging cavity, and high pressure oil continues to enter new high pressure oil suction chamber, drive rotor 2 continues to be rotated counterclockwise.
When rotor 2 rotates counterclockwise Figure 13 position, the low pressure oil in oil-discharging cavity Q3 drains, and Q1 is still high pressure oil suction chamber, Q4 and Q5 is still low pressure oil-discharging cavity, and high pressure oil is also entering new high pressure oil suction chamber, and drive rotor 2 continues to be rotated counterclockwise.
When rotor 2 rotates to Figure 14 position and continues to rotate, chamber Q1 becomes low pressure oil-discharging cavity then from high pressure oil suction chamber.So go round and begin again, drive rotor 2 is constantly rotated counterclockwise.At the other end of oil hydraulic motor, situation is also identical with this one end.
Above-described embodiment is used for explaining and the present invention is described, instead of limits this aspect, and in the protection domain of spirit of the present invention and claim, any amendment make this aspect and change, all fall into protection scope of the present invention.
Claims (1)
1. a Multiple-blade type oil motor, it is characterized in that, comprise housing (1), rotor (2), blade (3), Stamping Steel Ribbon (4) and cushion block (5), rotor (2) is positioned at center, housing (1) is positioned at outside, blade (3) is placed in the hollow ring at housing (1) diagonal angle, also be positioned at the groove of rotor (2) simultaneously, and with rotor (2) at an angle, a plane of blade (3) and the frustum cone side of rotor (2) tangent, Stamping Steel Ribbon (4) is positioned between rotor (2) and blade, its plane side and rotor (2) are fitted, then fit with the round table surface E1 of blade (3) in round table surface side, cushion block (5) is positioned at the hollow ring at housing (1) diagonal angle, just in time fill up by housing (1), blade (3), the vacancy that rotor (2) and Stamping Steel Ribbon (4) are formed,
Described blade (3) is quadrant shape, total identical four, and wherein a slice blade (3) is enclosed by two plane A1, B1 and cylinder C1, sphere D1 and two round table surface E1, J1 and forms; Wherein, the cylinder that C1 is center is centre of sphere O1, radius is identical with the radius of the cylinder E3 of the hollow ring of housing (1), the sphere that D1 is the centre of sphere is O1, radius is identical with rotor (2) billiard table C2 radius, E1 and J1 is round table surface, the diameter of its upper bottom surface and bottom surface is straight line R1S1 and straight line M1N1, M1R1 and N1S1 is respectively then its side bus; Two plane A1 are parallel with B1; The distance of two parallel plane A1 and B1 is the thickness of blade (3), and blade (3) thickness is equal with the hollow ring width of housing (1);
Eight that described Stamping Steel Ribbon (4) is total identical, wherein an E1 side is round table surface, the diameter of its upper bottom surface and bottom surface is straight line R1S1 and P1Q1 respectively, P1R1 and N1S1 is then its side bus, K1 side is plane, cross axis and this plane parallel of centre of sphere O1, its perpendicular distance is the half of the orthogonal four-bladed vane thickness of slab of rotor (2), G1 is the centre of sphere is O1, the sphere that radius is equal with rotor (2) center billiard table C2 radius, F1 is the centre of sphere is O1, radius equals the sphere of rotor (2) line segment O2M2, H1 with I1 two faces are parallel planes, its half long OP1 is equal with housing (1) cylinder F3 radius, width is equal with blade (3) width, R1 and S1 is two gradients with middle D3 for the equal inclined-plane of the gradient of B3, the width of Stamping Steel Ribbon (4) is equal with blade (3) thickness, blade (3) and Stamping Steel Ribbon (4) are axisymmetric,
It is the parallel dolioform billiard table cutting out two spherical crowns in two in the middle of described rotor (2), an orthogonal four-bladed vane is inserted as symmetry in the middle of billiard table, cydariform billiard table two is two identical hollow round tables, A2 with B2 is parallel disk, R2 with S2 is also parallel disk, the sphere of C2 and D2 to be the centre of sphere be O2, I2 and J2 is orthogonal two planes, in a blade (3) and the groove of two Stamping Steel Ribbon (4) arranged orthogonal between I2 and J2, just in time completely closely sealed, E2 and F2 is that central shaft crosses centre of sphere O2, the cylinder that radius is identical with housing (1) cylinder F3 radius, G2 with H2 is two identical hollow round table surface, side round platform upper and lower two ends are disk A2 and disk R2 respectively, opposite side round platform upper and lower two ends are disk B2 and disk S2 respectively, the length of straigh line of K2M2 is the width of rotor (2), two frustum cone side G2 and H2 and corresponding housing (1) hollow ring parallel plane C3 and D3 fit, whole rotor (2) is not only symmetrical about centre of sphere O2, also be axisymmetric,
Described housing (1) is the parallel dolioform sphere cutting out two spherical crowns in two, thickness is equal with the width K2M2 of rotor (2), A3 with B3 is the parallel disk that two radiuses are equal, F3 is cylinder, its central shaft crosses centre of sphere O3, radius is equal with the radius of outside, rotor (2) left and right E2 and F2 cylinder, the diagonal angle of housing (1) cylinder is a hollow ring, annular width is equal with blade (3) thickness, two side C3 with D3 of hollow ring are parallel circular planes, E3 is the cylinder of central shaft by centre of sphere O3, be positioned on the diagonal of housing (1), its external diameter is equal with the external diameter of blade (3) cylinder C1, and be greater than the external diameter of housing (1) cylinder F3, C3 and D3 two plane that annulus is parallel and corresponding rotor (2) two hollow round table side G2 and H2 fit, whole housing (1) is symmetrical about centre of sphere O3,
Described centre of sphere O1, centre of sphere O2, centre of sphere O3 all with housing (1) center superposition;
Described cushion block (5) is one section of annulus, total identical four, wherein an outside A4 is the cylinder that radius is equal with housing (1) diagonal angle annulus E3 external diameter, inner side B4 is the sphere that radius equals rotor (2) line segment O2M2, its upper and lower thickness four-bladed vane width K2M2 orthogonal with rotor (2) is equal, and two waist C4 and D4 are round table surface, and the diameter of this round table surface upper bottom surface and bottom surface is straight line P1Q1 and M1N1 respectively, M1P1 is then its side bus, and cushion block (5) shape is axisymmetric.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310690099.8A CN103711637B (en) | 2013-12-16 | 2013-12-16 | A kind of Multiple-blade type oil motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310690099.8A CN103711637B (en) | 2013-12-16 | 2013-12-16 | A kind of Multiple-blade type oil motor |
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| Publication Number | Publication Date |
|---|---|
| CN103711637A CN103711637A (en) | 2014-04-09 |
| CN103711637B true CN103711637B (en) | 2016-02-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310690099.8A Expired - Fee Related CN103711637B (en) | 2013-12-16 | 2013-12-16 | A kind of Multiple-blade type oil motor |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103670896B (en) * | 2013-12-16 | 2016-03-30 | 浙江大学 | A kind of vane type oil motor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2043783A (en) * | 1979-01-04 | 1980-10-08 | Jocottet Sa Ets | Rotary Positive-displacement Fluid-machines |
| CN101418772A (en) * | 2008-12-11 | 2009-04-29 | 宁波华液机器制造有限公司 | Spherical hydraulic motor |
| CN102536803A (en) * | 2011-12-30 | 2012-07-04 | 浙江大学 | Shell oil distribution type cylindrical blade hydraulic pump |
| CN102536624A (en) * | 2011-12-30 | 2012-07-04 | 浙江大学 | Spherical-vane hydraulic motor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050186100A1 (en) * | 2004-02-23 | 2005-08-25 | Paul Weatherbee | Spherical fluid machines |
-
2013
- 2013-12-16 CN CN201310690099.8A patent/CN103711637B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2043783A (en) * | 1979-01-04 | 1980-10-08 | Jocottet Sa Ets | Rotary Positive-displacement Fluid-machines |
| CN101418772A (en) * | 2008-12-11 | 2009-04-29 | 宁波华液机器制造有限公司 | Spherical hydraulic motor |
| CN102536803A (en) * | 2011-12-30 | 2012-07-04 | 浙江大学 | Shell oil distribution type cylindrical blade hydraulic pump |
| CN102536624A (en) * | 2011-12-30 | 2012-07-04 | 浙江大学 | Spherical-vane hydraulic motor |
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Granted publication date: 20160224 Termination date: 20181216 |