CN110366639A - Pump installation - Google Patents

Abstract

Pump installation of the invention includes: main body (10), including pump reception room (11), suction passage (12), passing away (13), first passage (14), second channel (15), the first communication channel (16), the second communication channel (17)；Pump unit (20), is contained in pump reception room, rotates around defined axis (S)；First inhalation check valve (30) and the first discharge check-valves (40), are configured at first passage；Second inhalation check valve (50) and the second discharge check-valves (60), are configured at second channel；And first passage (14) and second channel (15) are respectively formed as linear in the two sides across pump reception room (11).Whereby, the simplification of structure, miniaturization, cost effective etc. be can be realized.

Description

Pump installation

Technical field

The present invention relates to a kind of pump installations of displacement type, suck in positive rotation and reverse rotation and fluid is discharged, especially It is related to a kind of pump installation, is applied to electric car (Electric Vehicle motor, EV) motor or hybrid vehicle The cooling purposes or lubrication applications of (Hybrid Electrical Vehicle, HEV) motor etc., sucking and discharge oil.

Background technique

As existing pump installation, it is known that there is rotating electric machine cooling pump comprising pump main body, port (port) zero Part, the trochoid pump (trochoid pump) for being contained in pump main body, is formed in the various logical of port part at lid (cover) Road, four check-valves etc., four check-valves are respectively accommodated in the four check-valves accepting hole (examples formed in port part Such as, referring to patent document 1).

But in the pump installation, as main body, including pumping main body, the port part for being laminated in pump main body and stacking In the lid of port part, therefore be formed as that parts count is more, and lead to the structure of enlargement in the stacking direction.

Moreover, being formed with buckling in a plurality of directions and various channels interconnected, therefore logical in the part of port Road it is complex-shaped, the operations such as manufacture and machining of mold are possible to become trouble.

Existing technical literature

Patent document

Patent document 1: Japanese Patent Laid-Open 2016-94885 bulletin

Summary of the invention

Problem to be solved by the invention

The case where present invention is in view of the prior art and complete, its purpose is to provide a kind of pump installations, can Problem of the prior art is solved, realizes simplification, miniaturization of structure etc..

Technical means to solve problem

Pump installation of the invention is formed as following structure: comprising: main body, including pump reception room, suction passage, discharge Channel, first passage, second channel, the first communication channel and the second communication channel, the first passage are logical by suction passage and discharge Road is connected, and suction passage is connect by the second channel with passing away, and first communication channel makes first passage It is connected to the first port of pump reception room, second communication channel is connected to second channel with the second port for pumping reception room；Hold The pump unit of product type, is contained in pump reception room, rotates around defined axis；First inhalation check valve and the first discharge non-return Valve is configured at first passage；And second inhalation check valve and second discharge check-valves, be configured at second channel；Also, first Channel and second channel are respectively formed as linearly across the two sides of pump reception room.

In the structure, can also use following structure: main body includes being connected suction passage and passing away The third channel connect, pump installation further include the relief valve for being configured at third channel.

In the structure, can also use following structure: main body includes the joint surface engaged with application object, pump Reception room is formed on joint surface on the direction of axis and is open, suction passage, passing away, the first communication channel and the second communication channel Be formed as slot channel, slot channel forms on joint surface and is open, and first passage and second channel are formed as linear hole path, hole Channel is parallel with joint surface and forms opening in the same side of main body.

In the structure, can also use following structure: main body includes connecting with suction passage and passing away Third channel, pump installation further include the relief valve for being configured at third channel, and third channel is formed as linear hole path, Kong Tong Road is parallel with joint surface, and is formed and be open in the one side of main body.

In the structure, can also use following structure: first passage, second channel and third channel are formed as phase It is mutually parallel, and formed and be open in the same side of main body.

In the structure, can also use following structure: first port and second port are formed as in pump reception room The thrust face (thrust) formed opening, it is described pump reception room thrust face support pump unit on the direction of axis.

In the structure, can also use following structure: suction passage and passing away with first passage and The orthogonal mode in two channels is configured at across the two sides of pump reception room.

In the structure, can also use following structure: first passage includes the first major diameter channel and the first path Channel, first major diameter channel are embedded in the first inhalation check valve, and check-valves is discharged in first path channel insertion first, the Two channels include the second major diameter channel and the second path channel, and second major diameter channel is embedded in the second inhalation check valve, described Second path channel insertion the second discharge check-valves.

In the structure, can also use following structure: the first inhalation check valve includes: the first sucking thin slice structure Part, it is chimeric with the first major diameter channel；First sucking valve body, can be seated at the first sucking sheet members；And first sucking apply Power spring sucks sheet members force towards first to the first sucking valve body；First discharge check-valves includes: first row slice Component, it is chimeric with the first path channel；First exits valve body can be seated at first row slice component；And first discharge Force application spring exerts a force to the first exits valve body towards first row slice component；Second inhalation check valve includes: that the second sucking is thin Sheet element, it is chimeric with the second major diameter channel；Second sucking valve body, can be seated at the second sucking sheet members；And second inhale Enter force application spring, sheet members force is sucked towards second to the second sucking valve body；And the second discharge check-valves includes: second Sheet members are discharged, it is chimeric with the second path channel；Second exits valve body can be seated at second row slice component；And Second discharge force application spring exerts a force to the second exits valve body towards second row slice component.

In the structure, can also use following structure: the first sucking force application spring is connected to first row slice Component, the first discharge force application spring are connected to a part of main body, and the second sucking force application spring is connected to second row slice structure Part, the second discharge force application spring are connected to a part of main body.

In the structure, can also use following structure: relief valve includes: to keep out of the way sheet members, with third channel It is chimeric；Pressure relief valve body can be seated at and keep out of the way sheet members；And keep out of the way force application spring, thin slice is kept out of the way to pressure relief valve body direction Component force；And keep out of the way the bolt (plug) that force application spring is connected to blocking third channel.

In the structure, can also use following structure: pump unit is internal gear pump, including internal rotor and outer turn Son.

In the structure, can also use following structure: main body is in the region in face of pump reception room, including bearing Hole, the rotary shaft that the bearing hole support rotates internal rotor.

The effect of invention

According to the pump installation for forming the structure, a kind of pump installation can be obtained, can be realized the simplification, small-sized of structure The generation changing, is cost effective etc., and cavitation (cavitation) can be prevented etc., it is ensured that desired pump performance.

Detailed description of the invention

Fig. 1 is the exploded perspective view for indicating an embodiment of pump installation of the present invention.

Fig. 2 is the schematic diagram of pump installation shown in FIG. 1.

Fig. 3 is the front view of the main body contained in pump installation shown in FIG. 1 from the side on joint surface.

Fig. 4 be in the state of non-installation bolt, four check-valves and a relief valve, from the side vertical with joint surface it Observe the side view of main body contained in pump installation shown in FIG. 1 in side.

Fig. 5 is the sectional view for utilizing the face parallel with joint surface and cutting off pump installation shown in FIG. 1.

Fig. 6 is in pump installation shown in Fig. 1, using across the center of suction passage and the face vertical with joint surface and The sectional view of cutting.

Fig. 7 is in pump installation shown in Fig. 1, using in pump reception room, the first communication channel and the second communication channel The heart and the face vertical with joint surface and the sectional view cut off.

Fig. 8 is in pump installation shown in Fig. 1, using across the center of passing away and the face vertical with joint surface and The sectional view of cutting.

Fig. 9 is indicated in pump installation shown in Fig. 1, check-valves (the first sucking when pump unit rotates in one direction Check-valves, first discharge check-valves, the second inhalation check valve, second discharge check-valves) operating status sectional view.

Figure 10 is indicated in pump installation shown in Fig. 1, and (first inhales check-valves when pump unit rotates to another way Enter check-valves, first discharge check-valves, the second inhalation check valve, second discharge check-valves) operating status sectional view.

Figure 11 is indicated in pump installation shown in Fig. 1, check-valves (the first sucking when pump unit rotates in one direction Check-valves, first discharge check-valves, the second inhalation check valve, second discharge check-valves) and relief valve operating status section Figure.

Specific embodiment

Hereinafter, illustrating an embodiment of the invention on one side referring to Fig. 1 to Figure 11 of attached drawing on one side.Furthermore in Fig. 1 In, axis S is the straight line vertical with joint surface 10a, axis X 1, axis X 2, axis X 3 be parallel to each other and with joint surface 10a Parallel straight line, center line Yi, center line Yo, the center line Yc in each slot channel are to be parallel to each other, parallel with joint surface 10a, and And the straight line vertical with axis X 1, axis X 2, axis X 3.Herein, center line Yc be located at by center line Yi and center line Yo it Between the centre substantially halved.

The pump installation of the embodiment is answered in EV motor for electric vehicle, HEV motor of hybrid-electric car etc. With in the lubrication and cooling system of object, applied as following device, that is, pressurize on one side to the oil as fluid And supply, make the oil circulation on one side.

Pump installation includes main body 10, pump unit 20, the discharge sucking of check-valves 40, second of the first inhalation check valve 30, first 70, three check-valves 60, relief valve bolts 80 is discharged in check-valves 50, second.

Pump unit 20 is internal gear pump, including internal rotor 21, outer rotor 22, rotary shaft 23.

Main body 10 by die casting, and is formed as the tabular of specific thickness, outer profile is in using materials such as aluminium alloys It is substantially rectangular.

Main body 10 includes joint surface 10a, side 10b, four circular hole 10c for making fastening bolt (not shown) break-through, pump receipts Room 11, suction passage 12, passing away 13, first passage 14, second channel 15, the first communication channel 16, the second communication channel 17, Third channel 18, bearing hole 19.

Joint surface 10a is the face engaged with the shell of the applications objects such as EV motor, HEV motor, after die forming Machining and be formed as the plane vertical and smooth with axis S.

Side 10b forms the same side of opening as first passage 14, second channel 15, third channel 18, is formed as The flat surface substantially vertical with joint surface 10a.

Reception room 11 is pumped in the substantial middle region of main body 10, casting punching is in the substantially round of joint surface 10a formation opening After the recess portion of tubular, be formed as delimiting the inner peripheral surface 11a and thrust face 11b in predetermined radius by machining.

Also, the depth side on pump chamber 11, with the direction axis S is adjacently formed with first port 11c and second port 11d, the first port 11c and the second port 11d are formed in thrust face 11b and are open.

Pump reception room 11 accommodates pump unit 20 in a manner of flushing with joint surface 10a.Moreover, thrust face 11b is in the axis side S It is rotated up the one side for supporting internal rotor 21 and outer rotor 22 freely, inner peripheral surface 11a is around axis turn S twelve Earthly Branches freely Support the outer peripheral surface of outer rotor 22.

Furthermore reception room 11 is pumped other than the region that rotary shaft 23 is passed through, by the joint surface of application object Another side of blocking, internal rotor 21 and outer rotor 22 rotates on the direction axis S by the joint surface of application object It supports freely.

The profile that crescent shape is formed when first port 11c is from the direction axis S, connect with the first communication channel 16, and It hollows out and is formed from depth side of the thrust face 11b on the direction axis S.

The profile that crescent shape is formed when second port 11d is from the direction axis S, connect with the second communication channel 17, and It hollows out and is formed from depth side of the thrust face 11b on the direction axis S.

First port 11c and second port 11d separate substantially 180 degree on the direction center line Yc, across bearing hole 19 and Symmetrically configure.

Then, when pump unit 20 rotates (positive rotation) in one direction, suction side of the first port 11c as sucking oil Mouthful and play a role, the second port 11d discharge port oily as discharge and play a role.On the other hand, when 20 court of pump unit When another direction rotates (reverse rotation), first port 11c plays a role as the discharge port that oil is discharged, second port 11d plays a role as the inhalation port for sucking oil.

Herein, first port 11c and second port 11d is formed as forming opening in the thrust face 11b of pump reception room 11. Therefore, first port 11c and second port 11d can be configured at following region, that is, with first on the direction of axis S The region that communication channel 16 and the second communication channel 17 are overlapped, can be realized the slimming of the main body 10 on the direction axis S.

Suction passage 12 is formed as elongated slot channel, in a manner of extending on the direction center line Yi in die forming Punching is cast, is connect with first passage 14, second channel 15, third channel 18, and is formed and is open in joint surface 10a.

Also, suction passage 12 is in the region between the first passage 14 and second channel 15 on the direction center line Yi, Including cylinder recess portion 12a.

Cylinder recess portion 12a is corresponding with the oil export of application object.

Moreover, suction passage 12 blocks its opening portion other than cylinder recess portion 12a, using the joint surface of application object Point.

Passing away 13 is formed as elongated slot channel, in a manner of extending on the direction center line Yo in die forming Punching is cast, is connect with first passage 14 and second channel 15, also, to be stretched relative to center line Yo with predetermined angular buckling Long mode is cast punching, is connect with third channel 18, and on joint surface, 10a forms opening.

Also, region Nei Bao of the passing away 13 between the first passage 14 and second channel 15 on the direction center line Yo Semicircular cylinder recess portion 13a is included, includes the wall surface 13b for forming cylinder recess portion on X1 and X2 axis.

Semicircular cylinder recess portion 13a is corresponding with the oil-in of application object.

Wall surface 13b the first path channel 14b and second channel 15 to first passage 14 the second path channel 15b into It is formed simultaneously when row machining.

Also, passing away 13 blocks its opening other than semicircular cylinder recess portion 13a, using the joint surface of application object Part.

First passage 14 is formed as linear hole path, and section is rounded, with parallel with joint surface 10a and in axis The mode extended on the direction line X1 is cast punching in die forming, and in side, 10b forms opening, also, after die forming It is machined, suction passage 12 is connect with passing away 13.

Also, first passage 14 in region until with the crossover location of the first communication channel 16, is formed from side 10a For formed regulation internal diameter φ D1 the first major diameter channel 14a, from the crossover location with the first communication channel 16 to passing away In region until 13 crossover location, be formed as the first path channel 14b to form regulation internal diameter φ d1.Herein, φ D1 > φ d1.

In the first major diameter channel 14a, (the first the sucking sheet members 31, the first inlet valve of the first inhalation check valve of configuration 30 32, the first sucking force application spring 33), and embedding in bolt 80.

In the first path channel 14b, configuration the first discharge check-valves 40 (first row slice component 41, the first dump valve 42, the first discharge force application spring 43).

Whereby, when check-valves 40 is discharged in insertion first, biting in the region of the first major diameter channel 14a can be prevented Deng, and certainly it is embedded in desired position.

Check-valves 40 is discharged in second further, it is possible to be set to be large the first inhalation check valve 30, therefore gas can be prevented The generation of cave phenomenon etc., it is ensured that desired pump performance.

Second channel 15 is formed as linear hole path, and section is rounded, with parallel with joint surface 10a and in axis The mode extended on the direction X2 is cast punching in die forming, and in side, 10b forms opening, and is subject to after die forming Machining, suction passage 12 is connect with passing away 13.

Also, second channel 15 in region until with the crossover location of the second communication channel 17, is formed from side 10a For formed regulation internal diameter φ D2 the second major diameter channel 15a, from the crossover location with the second communication channel 17 to passing away In region until 13 crossover location, be formed as the second path channel 15b to form regulation internal diameter φ d2.Herein, φ D2 > φ d2.Furthermore herein, be formed as φ D1=φ D2, φ d1=φ d2.

In the second major diameter channel 15a, (the second the sucking sheet members 51, the second inlet valve of the second inhalation check valve of configuration 50 52, the second sucking force application spring 53), and embedding in bolt 80.

In the second path channel 15b, configuration the second discharge check-valves 60 (second row slice component 61, the second dump valve 62, the second discharge force application spring 63).

Whereby, when check-valves 60 is discharged in insertion second, biting in the region of the second major diameter channel 15a can be prevented Deng, and certainly it is embedded in desired position.

Check-valves 60 is discharged in second further, it is possible to be set to be large the second inhalation check valve 50, therefore gas can be prevented The generation of cave phenomenon etc., it is ensured that desired pump performance.

First communication channel 16 is formed as elongated slot channel, in die forming in a manner of extending on the direction center line Yc When cast punching, by make first passage 14 with pump reception room 11 first port 11c be connected in a manner of, on joint surface, 10a is formed Opening.

Also, the first communication channel 16 blocks its opening portion using the joint surface of application object.

Second communication channel 17 is formed as elongated slot channel, in die forming in a manner of extending on the direction center line Yc When cast punching, by make second channel 15 with pump reception room 11 second port 11d be connected in a manner of, on joint surface, 10a is formed Opening.

Moreover, the second communication channel 17 blocks its opening portion using the joint surface of application object.

Third channel 18 is formed as linear hole path, section in regulation internal diameter φ D3 circle, with joint surface 10a is parallel and is cast punching when the mode extended on 3 direction of axis X is in die forming, and in side, 10b forms opening, and It is machined after die forming, suction passage 12 is connect with passing away 13.

Also, third channel 18 is in the position being connected to passing away 13, the channel 18b including scale face 18a and path. Channel 18b is formed by casting punching.

Herein, be formed as φ D3=φ D1=φ D2.

Moreover, configuration relief valve 70 (keeps out of the way sheet members 71, relief valve 72, keeps out of the way force application spring in third channel 18 , and embedding in bolt 80 73).

Bearing hole 19 is in order to rotatably support rotary shaft 23, to open on the direction axis S in thrust face 11b formation Mouthful, and the mode of main body 10 is not penetrated through, be formed as the cylinder hole centered on axis S.

Moreover, bearing hole 19 is configured at pump reception room 11, rotary shaft 23 in the internal rotor 21 and outer rotor 22 of pump unit 20 In the state of linking with internal rotor 21, rotary shaft 23 is supported in radial direction and thrust direction freely around axis turn S.

As described above, in the region in face of pump reception room 11, the bearing hole 19 including supporting rotary shaft 23, the rotation Axis 23 rotates internal rotor 21, therefore by supporting rotary shaft 23 using bearing hole 19, and to fill rotary shaft 23 in advance In the case where the rotary shaft of the case where entering to pump installation or connection application object, rotation can be supported in a manner of not shaking Axis.

According to the main body 10 of the structure, the two sides across pump reception room 11 be linearly formed with first passage 14 and Second channel 15.Moreover, in linearly first passage 14 configured with the first inhalation check valve 30 and the first discharge check-valves 40, also, in linearly second channel 15 configured with the second inhalation check valve 50 and the second discharge check-valves 60.

Therefore, channel design is simplified, and manufacture becomes easy, and can be realized miniaturization, cost effective etc..

Also, pump reception room 11, suction passage 12, passing away 13, the first communication channel 16 and the second communication channel 17 with Joint surface 10a forms the mode of opening and is formed.

Therefore, when shaping main body 10 using mold etc., by pump reception room 11, suction passage 12, passing away 13, the first communication channel 16 and the second communication channel 17 carry out casting punching and are formed as cylinder recess portion and slot channel, then, right as needed The implementations machinings such as reception room 11 are pumped, the shape to form desired size can be obtained.

Thereby, it is possible to reduce the working hour of machining, manufacturing cost, manufacturing man-hours etc. are cut down.

Also, first passage 14, second channel 15, third channel 18 are formed as all parallel, and in the same of main body 10 Side 10b forms opening.

It therefore, can be in advance from same direction to first passage 14, second channel when shaping main body 10 using mold etc. 15 and third channel 18 carry out casting punching and be formed as hole path, also, thereafter as needed implement machining, thus, it is possible to obtain The channel of desired internal diameter must be formed.

Therefore, the working hour of machining can be reduced, manufacturing cost, manufacturing man-hours etc. are cut down.

Further, it is possible to relative to main body 10, from same direction, by the first inhalation check valve 30 and the first discharge check-valves 40 It is embedded in first passage 14, the second inhalation check valve 50 and the second discharge check-valves 60 are embedded in second channel 15, by pressure release Valve 70 is embedded in third channel 18, therefore can reduce Operational preparation and be easy to carry out assembling operation.

In addition, suction passage 12 and passing away 13 are configured in the mode orthogonal with first passage 14 and second channel 15 Across the two sides of pump reception room 11, therefore can be around pump reception room 11, centralized configuration suction passage 12, passing away 13, first passage 14, second channel 15.Therefore, facilitate the miniaturization of main body 10.

Pump unit 20 is the internal gear pump of displacement type, is rotated around axis S, including internal rotor 21, outer rotor 22, rotary shaft 23.

Internal rotor 21 utilize the materials such as steel or sintered steel (sintered steel), be formed as external gear, have comprising The tooth form of trochoidal curve curve.

Moreover, internal rotor 21 includes the side 21a slided on the joint surface of application object, the cunning on thrust face 11b Dynamic side 21b, the connecting hole 21c centered on axis S, six protrusions (convex peak) and six recess portions (trench).

Outer rotor 22 is formed as internal gear using materials such as steel or sintered steels, has the tooth that can be engaged with internal rotor 21 Shape.

Moreover, outer rotor 22 includes the side 22a slided on the joint surface of application object, the cunning on thrust face 11b Dynamic side 22b, the circular outer peripheral surface 22c centered on deviateing the only axis of specified amount with axis S, seven protrusions and seven Recess portion.

Outer peripheral surface 22c is formed as contacting and being rotatably supported with the inner peripheral surface 11a of pump reception room 11.

Seven protrusions and seven recess portions are formed as locally being engaged with six protrusions of internal rotor 21 and six recess portions.

Moreover, 22 one side of outer rotor and the rotation of internal rotor 21 link, on one side with the speed slower than internal rotor 21, surround As defined in axis rotation, the internal rotor 21 around axis S rotate.Also, pass through 22 part of internal rotor 21 and outer rotor Ground occlusion, and pump chamber delimited, the pump chamber continuously changes therebetween and brings pumping action.

Rotary shaft 23 includes: linking part 23a, transmits the driving force from application object；Fitting portion 23b, with internal rotor 21 connecting hole 21c is chimeric；And axle portion 23c, it is chimeric with bearing hole 19.

Moreover, constitute the trochoid pump as pump unit, in one direction and another direction by rotary shaft 23 Rotation, and internal rotor 21 and outer rotor 22 is made to link and rotate, oil is sucked into pump chamber, and is pressurizeed on one side, one Side discharge.

Herein, pump unit 20 uses internal gear pump, including internal rotor 21 and outer rotor 22, and thus, it is possible to simplify pump to receive Room 11, is able to suppress parts count, oil can be discharged using high pressure.

Also, rotary shaft 23 is rotatably embedded in bearing hole 19, and the bearing hole 19 is formed in face of pump reception room 11 region.Therefore, rotary shaft 23 can be accurately supported in a manner of not generating rotation shake.

First inhalation check valve 30 includes that the first sucking sheet members 31, first suck the sucking force bullet of valve body 32, first Spring 33.

First sucking sheet members 31 include outer peripheral surface 31a, through hole 31b, conical surface-shaped sheet plane 31c, cricoid End face 31d, the outer peripheral surface 31a are formed as cylindric, and are fitted and fixed in the first major diameter channel 14a.

First sucking valve body 32 is formed as spherical in a manner of with sheet plane 31c contiguity.

First sucking force application spring 33 is the helical spring of compression-type, is configured at the first sucking valve body 32 and the first discharge is thin Between sheet element 41, exert a force to the first sucking valve body 32 towards valve closing direction.

First discharge check-valves 40 includes first row slice component 41, the first exits valve body 42, first discharge force bullet Spring 43.

First row slice component 41 include outer peripheral surface 41a, through hole 41b, conical surface-shaped sheet plane 41c, cricoid End face 41d, the outer peripheral surface 41a are formed as cylindric, and are fitted and fixed in the first path channel 14b.

First exits valve body 42 is formed as spherical in a manner of with sheet plane 41c contiguity.

First discharge force application spring 43 is the helical spring of compression-type, is configured at the first exits valve body 42 and as main body 10 A part passing away 13 wall surface 13b between, to the first exits valve body 42 towards valve closing direction exert a force.

Second inhalation check valve 50 includes that the second sucking sheet members 51, second suck the sucking force bullet of valve body 52, second Spring 53.

Second sucking sheet members 51 include outer peripheral surface 51a, through hole 51b, conical surface-shaped sheet plane 51c, cricoid End face 51d, the outer peripheral surface 51a are formed as cylindric, and are fitted and fixed in the second major diameter channel 15a.

Second sucking valve body 52 is formed as spherical in a manner of with sheet plane 51c contiguity.

Second sucking force application spring 53 is the helical spring of compression-type, is configured at the second sucking valve body 52 and the second discharge is thin Between sheet element 61, exert a force to the second sucking valve body 52 towards valve closing direction.

Second discharge check-valves 60 includes second row slice component 61, the second exits valve body 62, second discharge force bullet Spring 63.

Second row slice component 61 include outer peripheral surface 61a, through hole 61b, conical surface-shaped sheet plane 61c, cricoid End face 61d, the outer peripheral surface 61a are formed as cylindric, and are fitted and fixed in the second path channel 15b.

Second exits valve body 62 is formed as spherical in a manner of with sheet plane 61c contiguity.

Second discharge force application spring 63 is the helical spring of compression-type, is configured at the second exits valve body 62 and as main body 10 A part passing away 13 wall surface 13b between, to the second exits valve body 62 towards valve closing direction exert a force.

Relief valve 70 includes keeping out of the way sheet members 71, pressure relief valve body 72, keeping out of the way force application spring 73.

Keeping out of the way sheet members 71 includes outer peripheral surface 71a, through hole 71b, the sheet plane 71c of conical surface-shaped, cricoid end face 71d, the outer peripheral surface 71a are formed as cylindric, and are fitted and fixed in third channel 18.

Pressure relief valve body 72 is formed as spherical in a manner of with sheet plane 71c contiguity.

Keep out of the way the helical spring that force application spring 73 is compression-type, is configured between pressure relief valve body 72 and bolt 80, to relief valve Body 72 exerts a force towards valve closing direction, and the bolt 80 is fitted and fixed in third channel 18.

Moreover, relief valve 70 plays following effect: make the oil that the pressure of regulation or more is had reached in passing away 13, Suction passage 12 is back to via third channel 18.This prevents crossing the discharge of pressure oil, can be pressed using desired discharge Power is discharged oil.

Bolt 80 is formed as cylindric using aluminium alloy etc..

Bolt 80 is the side 10b in order to be blocked in each channel (first passage 14, second channel 15, third channel 18) Opening portion, the component being fitted and fixed with flushing with the side 10b of main body 10.

Illustrate to form the assembling operation of the pump installation of the structure.

Prepare machined main body 10, pump unit 20, the first inhalation check valve 30, first discharge check-valves in advance 40,70, three check-valves 60, relief valve bolts 80 is discharged in the second inhalation check valve 50, second.

Firstly, to the first passage 14 of main body 10, from the side of side 10b, the first discharge check-valves 40 of insertion and the first suction Enter check-valves 30, then, embedding in bolt 80.

That is, to the first path channel 14b, insertion the first discharge force application spring 43 is then inserted into the first exits valve body 42.It connects , first row slice component 41 is chimeric in the region between the first communication channel 16 and passing away 13 to be fixed on the first path Channel 14b.

Herein, the one end of the first discharge force application spring 43 is connected to the wall surface 13b of passing away 13, and the other end is supported It is connected to the first exits valve body 42 and configures, and in the state of compression, to be applied to the first exits valve body 42 towards valve closing direction Power is so that it touches with sheet plane 41c.

Also, the end face 41d of first row slice component 41 is in a manner of outstanding not into the first communication channel 16, with first The wall surface of communication channel 16 flush or more by depth side only specified amount and configure.

Then, to the first major diameter channel 14a, insertion the first sucking force application spring 33 is inserted into the first sucking valve body 32. Then, chimeric in region of the first sucking sheet members 31 between suction passage 12 and the first communication channel 16 to be fixed on first greatly Diameter channel 14a.

Herein, the one end of the first sucking force application spring 33 is connected to the end face 41d of first row slice component 41, separately One end is connected to the first sucking valve body 32 and configures, and in the state of compression, so as to the first sucking valve body 32 towards closing Valve direction exerts a force so that it touches with sheet plane 31c.

Also, the end face 31d of the first sucking sheet members 31 is in a manner of outstanding not into suction passage 12, logical with sucking The wall surface in road 12 flush or more by depth side only specified amount and configure.

Then, bolt 80 is in order to block the opening portion of first passage 14 (the first major diameter channel 14a), with the side with main body 10 10b is flushed, and the not mode outstanding into suction passage 12, is fitted and fixed in the first major diameter channel 14a.

Next, to the second channel 15 of main body 10, from the side of side 10b, insertion the second discharge check-valves 60 and second Inhalation check valve 50, then, embedding in bolt 80.

That is, to the second path channel 15b, insertion the second discharge force application spring 63 is inserted into the second exits valve body 62.It connects , second row slice component 61 is fitted and fixed with small in second in the region between the second communication channel 17 and passing away 13 Diameter channel 15b.

Herein, the one end of the second discharge force application spring 63 is connected to the wall surface 13b of passing away 13, and the other end is supported It is connected to the second exits valve body 62 and configures, and in the state of compression, to be applied to the second exits valve body 62 towards valve closing direction Power is so that it touches with sheet plane 61c.

Also, the end face 61d of second row slice component 61 is in a manner of outstanding not into the second communication channel 17, with second The wall surface of communication channel 17 flush or more by depth side only specified amount and configure.

Then, to the second major diameter channel 15a, insertion the second sucking force application spring 53 is inserted into the second sucking valve body 52. Then, it in region of the second sucking sheet members 51 between suction passage 12 and the second communication channel 17, is fitted and fixed in second Major diameter channel 15a.

Herein, the one end of the second sucking force application spring 53 is connected to the end face 61d of second row slice component 61, separately One end is connected to the second sucking valve body 52 and configures, and in the state of compression, so as to the second sucking valve body 52 towards closing Valve direction exerts a force so that it touches with sheet plane 51c.

Also, the end face 51d of the second sucking sheet members 51 is in a manner of outstanding not into suction passage 12, logical with sucking The wall surface in road 12 flush or more by depth side only specified amount and configure.

Then, bolt 80 is in order to block the opening portion of second channel 15 (the second major diameter channel 15a), with the side with main body 10 10b is flushed, and the not mode outstanding into suction passage 12, is fitted and fixed in the second major diameter channel 15a.

Next, from the side of side 10b, being embedded in relief valve 70, then, embedding in bolt 80 to the third channel 18 of main body 10.

That is, keep out of the way sheet members 71 in the region between suction passage 12 and passing away 13 the chimeric third that is fixed on it is logical Road 18.Herein, keep out of the way until sheet members 71 are inserted into the position that end face 71d is connected to scale face 18a.

Then, to third channel 18, it is inserted into pressure relief valve body 72, is inserted into and keeps out of the way force application spring 73.

Then, bolt 80 is in order to block the opening portion of third channel 18, to be flushed with the side 10b of main body 10, and not to Mode outstanding in suction passage 12, is fitted and fixed in third channel 18.

Herein, the one end for keeping out of the way force application spring 73 is connected to bolt 80, and the other end is connected to pressure relief valve body 72 and matches It sets, and in the state of compression, to exert a force towards valve closing direction so that it touches with sheet plane 71c to pressure relief valve body 72.

Next, being packed into pump unit 20 to the pump reception room 11 of main body 10.

Firstly, rotary shaft 23 is rotatably embedded in bearing hole 19.

Then, internal rotor 21 and rotary shaft 23 link.In the connection, the pin of fitting portion 23b is embedded in connecting hole The slot of 21c.Rotary shaft 23 and internal rotor 21 link in a integrally rotatable manner as a result,.

Then, outer rotor 22 is embedded in the inside of inner peripheral surface 11c in a manner of being engaged with internal rotor 21.

By the above, pump installation is completed.

Furthermore the assembling of each part is not limited to the sequence, other sequences can also be suitably applied.

It, can be respectively from same direction easily by first by the way that constitutional detail to be successively assembled to main body 10 as described above Inhalation check valve 30 and the first discharge check-valves 40 are assembled to first passage 14, and the second inhalation check valve 50 and the second discharge are stopped It returns valve 60 and is assembled to second channel 15, relief valve 70 is assembled to third channel 18.

Also, the first sucking force application spring 33 is connected to first row slice component 41, and the first discharge force application spring 43 supports It is connected to a part of main body 10, the second sucking force application spring 53 is connected to second row slice component 61, the second discharge force bullet Spring 63 is connected to a part of main body 10, keeps out of the way the bolt 80 that force application spring 73 is connected to blocking third channel 18, therefore can collect Middle configuration part, can cut down parts count.

Next, being illustrated on one side to the movement of pump installation referring to Fig. 9 to Figure 11 on one side.

As shown in figure 9, the oily oil from application object when pump unit 20 rotates in one direction, in application object Cylinder recess portion 12a is passed through in outlet, is sucked into suction passage 12.

Then, the oil through sucking passes through the first inhalation check valve 30 in first passage 14, by the first communication channel 16 Pump chamber is sucked into from first port 11c.

Then, the oil for being sucked into pump chamber is pressurizeed by the consecutive variations of the pump chamber of pump unit 20, from second port 11d passes through the second communication channel 17, the second discharge check-valves 60 in second channel 15.

Then, pressurized oil is discharged from passing away 13 by semicircular cylinder recess portion 13a, is directed into application object Oil-in.

It, will be oily from application in application object also, as shown in Figure 10, when pump unit 20 rotates to another way The oil export of object passes through cylinder recess portion 12a, is sucked into suction passage 12.

Then, the oil through sucking passes through the second inhalation check valve 50 in second channel 15, by the second communication channel 17 Pump chamber is sucked into from second port 11d.

Then, the oil for being sucked into pump chamber is pressurizeed by the consecutive variations of the pump chamber of pump unit 20, from first port 11c passes through the first communication channel 16, the first discharge check-valves 40 in first passage 14.

Then, pressurized oil is discharged from passing away 13 by semicircular cylinder recess portion 13a, and is directed into application object Oil-in.

On the other hand, as shown in figure 11, in the state that pump unit 20 rotates in one direction, the pressure for the oil being discharged When becoming overvoltage condition more than prescribed level, pressure release of a part of pressure oil from passing away 13 in third channel 18 is crossed Valve 70, and it is back to suction passage 12.

Then, the oil returned together, again passes through the first inhalation check valve in first passage 14 with the oil through sucking 30, it is sucked into pump chamber from first port 11c by the first communication channel 16, is advanced along path similar to the above.

Furthermore in the state that pump unit 20 rotates to another way, the pressure for the oil being discharged is more than prescribed level And when becoming overvoltage condition, and it is same.

As described above, according to the pump installation, in (positive rotation) and another direction (the inverse rotation in one direction of pump unit 20 Turn) rotation when, oil can be inhaled into and be discharged and supply to application object, and recycle.

Also, the oil of over-voltage passes through the relief valve 70 in third channel 18 and is back to suction passage more than prescribed level 12, so the discharge of pressure oil can be prevented, it can be using desired discharge pressure come for oil supply.

As previously discussed, according to the pump installation of the embodiment, in the linearly shape in two sides across pump reception room 11 At having first passage 14 and second channel 15, the first inhalation check valve 30 and first is configured in linearly first passage 14 Check-valves 40 is discharged, also, in linearly second channel 15 configured with the second inhalation check valve 50 and the second discharge non-return Valve 60, therefore channel design is simplified, manufacture becomes easy, and can be realized miniaturization, cost effective etc..

In said embodiment, it illustrates following situation: being used as pump using in the trochoid pump of trochoidal curve tooth form In the structure of unit, using the present invention.But it's not limited to that, can also include (involute) tooth form that bursts at the seams gradually Internal rotor and outer rotor or structure in the internal rotor of other tooth forms and outer rotor etc. in, using the present invention.

Also, illustrate following structure, that is, internal rotor 21 and outer rotor 22 as pump unit include trochoidal curve formula Six seven sections, but it's not limited to that, it can also be using the structure including other numbers.

In said embodiment, the case where illustrating using relief valve 70, but it's not limited to that, can also use Remove the structure of relief valve 70.

In said embodiment, as first passage 14, second channel 15, third channel 18, hole path is illustrated, but It is that it's not limited to that, following structure can also be used: be formed as slot channel, 10a forms opening on joint surface, and from opening Mouth is partially submerged into each check-valves, blocks its opening portion using the joint surface of application object after assembling.

In said embodiment, as pump installation, illustrate that pump unit 20 includes the structure of rotary shaft 23, but not It is defined in this.As long as example, being set as the structure of the rotary shaft of connection application object, so that it may in the state for having removed rotary shaft Lower composition pump installation.

In said embodiment, following situation is disclosed, that is, be applied to pump installation of the invention for electric vehicle EV motor, the HEV motor of hybrid-electric car etc., but it's not limited to that, also can be applied to other cooling systems System or lubricating system, also, the device using the fluid other than oil can also be applied to.

The explanation of symbol

S: axis

10: main body

10a: joint surface

10b: side (same side)

11: pump reception room

11b: thrust face

11c: first port

11d: second port

12: suction passage

13: discharge channel

13b: wall surface (a part of main body)

14: first passage

X1: axis

14a: the first major diameter channel

14b: the first path channel

15: second channel

X2: axis

15a: the second major diameter channel

15b: the second path channel

16: the first communication channels

17: the second communication channels

18: third channel

X3: axis

19: bearing hole

20: pump unit

21: internal rotor

22: outer rotor

23: rotary shaft

30: the first inhalation check valves

31: the first sucking sheet members

32: the first sucking valve bodies

33: the first sucking force application springs

40: the first discharge check-valves

41: the first discharge sheet members

41d: end face

42: the first discharge valve bodies

43: the first discharge force application springs

50: the second inhalation check valves

51: the second sucking sheet members

52: the second sucking valve bodies

53: the second sucking force application springs

60: the second discharge check-valves

61: the second discharge sheet members

61d: end face

62: the second discharge valve bodies

63: the second discharge force application springs

70: keeping out of the way valve

71: keeping out of the way sheet members

72: keeping out of the way valve body

73: keeping out of the way force application spring

80: plug

Claims (13)

1. a kind of pump installation characterized by comprising

Main body, including pump reception room, suction passage, passing away, first passage, second channel, the first communication channel and second connect The suction passage is connect by channel, the first passage with the passing away, and the second channel is by the sucking Channel is connect with the passing away, and first communication channel makes the first end of the first passage and the pump reception room Mouth connection, second communication channel are connected to the second channel and the second port of the pump reception room；

The pump unit of displacement type is contained in the pump reception room, rotates around defined axis；

First inhalation check valve and the first discharge check-valves, are configured at the first passage；And

Second inhalation check valve and the second discharge check-valves, are configured at the second channel；And

The first passage and the second channel are respectively formed as linear in the two sides across the pump reception room.

2. pump installation according to claim 1, which is characterized in that

The main body includes third channel, and the suction passage is connect by the third channel with the passing away,

The pump installation further includes relief valve, and the relief valve is configured at the third channel.

3. pump installation according to claim 1, which is characterized in that

The main body includes the joint surface engaged with application object,

The pump reception room is formed on the joint surface on the direction of the axis and is open,

The suction passage, the passing away, first communication channel and second communication channel are formed as slot channel, described Slot channel forms on the joint surface and is open,

The first passage and the second channel are formed as linear hole path, and the hole path is parallel with the joint surface And it is formed and is open in the same side of the main body.

4. pump installation according to claim 3, which is characterized in that

The main body includes third channel, and the third channel is connect with the suction passage and the passing away,

The pump installation further includes relief valve, and the relief valve is configured at the third channel；

The third channel is formed as linear hole path, and the hole path is parallel with the joint surface, and in the main body One side formed opening.

5. pump installation according to claim 4, which is characterized in that

The first passage, the second channel and the third channel are formed as being parallel to each other, and in the same of the main body One side forms opening.

6. pump installation according to any one of claim 3 to 5, which is characterized in that

The first port and the second port are formed as forming opening, the pump receiving in the thrust face of the pump reception room The thrust face of room supports the pump unit on the direction of the axis.

7. pump installation according to any one of claim 1 to 6, which is characterized in that

The suction passage and the passing away are configured in the mode orthogonal with the first passage and the second channel Across the two sides of the pump reception room.

8. pump installation according to claim 3, which is characterized in that

The first passage includes the first major diameter channel and the first path channel, and first major diameter channel insertion described first is inhaled Entering check-valves, check-valves is discharged in first path channel insertion described first,

The second channel includes the second major diameter channel and the second path channel, and second major diameter channel insertion described second is inhaled Enter check-valves, second path channel insertion the second discharge check-valves.

9. pump installation according to claim 8, which is characterized in that

First inhalation check valve includes: the first sucking sheet members, chimeric with first major diameter channel；First inlet valve Body can be seated at the first sucking sheet members；And first sucking force application spring, to it is described first sucking valve body direction The first sucking sheet members force；

The first discharge check-valves includes: first row slice component, chimeric with first path channel；First dump valve Body can be seated at the first row slice component；And first discharge force application spring, to the first exits valve body direction The first row slice component force；

Second inhalation check valve includes: the second sucking sheet members, chimeric with second major diameter channel；Second inlet valve Body can be seated at the second sucking sheet members；And second sucking force application spring, to it is described second sucking valve body direction The second sucking sheet members force；

The second discharge check-valves includes: second row slice component, chimeric with second path channel；Second dump valve Body can be seated at the second row slice component；And second discharge force application spring, to the second exits valve body direction The second row slice component force.

10. pump installation according to claim 9, which is characterized in that

The first sucking force application spring is connected to the first row slice component,

The first discharge force application spring is connected to a part of the main body,

The second sucking force application spring is connected to the second row slice component,

The second discharge force application spring is connected to a part of the main body.

11. pump installation according to claim 2, which is characterized in that

The relief valve includes: to keep out of the way sheet members, chimeric with the third channel；Pressure relief valve body can be seated at described move back Keep away sheet members；And keep out of the way force application spring, keep out of the way sheet members force described in the pressure relief valve body；

The force application spring of keeping out of the way is connected to the bolt for blocking the third channel.

12. pump installation according to any one of claim 1 to 11, which is characterized in that

The pump unit is internal gear pump, including internal rotor and outer rotor.

13. pump installation according to claim 12, which is characterized in that

The main body is in the region in face of the pump reception room, including bearing hole, and the bearing hole support makes the internal rotor The rotary shaft of rotation.