CN203656545U - Oil pump displacement regulation device - Google Patents
Oil pump displacement regulation device Download PDFInfo
- Publication number
- CN203656545U CN203656545U CN201320639567.4U CN201320639567U CN203656545U CN 203656545 U CN203656545 U CN 203656545U CN 201320639567 U CN201320639567 U CN 201320639567U CN 203656545 U CN203656545 U CN 203656545U
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- sealing
- discharge capacity
- oil pump
- extension arm
- pump
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Abstract
The utility model discloses an oil pump displacement regulation device which comprises an eccentric ring (2), a rotor (3) and an emission reduction regulation mechanism (4), wherein the eccentric ring (2) is arranged in a pump cavity (1); the rotor (3) is eccentric to a special-shaped inner cavity of the eccentric ring (2); the emission reduction regulation mechanism (4) is used for reducing an eccentric distance between the eccentric ring (2) and the rotor (3). The oil pump displacement regulation device is characterized by further comprising an emission increase regulation mechanism (5), wherein the emission increase regulation mechanism (5) is respectively communicated with an oil discharge port (7) and a main oil circuit (8) by electromagnetic valves (6); the electromagnetic valves (6) are electrically connected with a control unit (9). Through the adoption of the structure, multistage adjustability of oil pump discharge capacity is realized, and the utilization rate of hydraulic energy of oil is improved, so that energy waste is reduced.
Description
Technical field
The utility model relates to a kind of oil pump, is specially a kind of oil pump capacity controlling device.
Background technique
Motor car engine, in the time of work, due to the friction between each component, therefore must be provided with lubrication system.And the lubrication system of existing motor car engine is generally made up of oil pump and relevant conveying and control apparatus, provide high-voltage oil liquid by oil pump, be transported to the surface of each component, play lubrication.The uninterrupted of the high-voltage oil liquid that oil pump provides determines by the rotating speed of fixing and discharge capacity completely, and the quantitative oil pump of this quasi-tradition is referred to as fixed displacement oil pump.As can be seen here, for fixed displacement oil pump, in the higher situation of rotating speed of oil pump, the output flow of its fluid is larger, the fluid of the lubrication that motor needs is without so many, so just caused more high-voltage oil liquid to flog a dead horse, this does not meet the developing direction of following energy-saving and emission-reduction.According to formula: oil pump output power=oil pump capacity × pump chamber pressure/60 are known, in the time pressure-limit valve being set on oil pump, can reduce to a certain extent the output power of oil pump by the pump chamber pressure in reduction oil pump chamber, thereby reach certain energy-saving effect, but oily pump delivery does not have any variation, therefore the output power of its oil pump declines and is not obvious.The innovation and creation of the variable delivery pump of adjustable pump housing discharge capacity of a kind of while and oil pocket pressure are proposed thus further.
The utility model patent that for example notification number is CN201680136U, by being positioned at the spring of external rotor blade both sides and the acting in conjunction of oil liquid pressure, realize the swing of external rotor, thereby the throw of eccentric between adjusting inner and outer rotors, change thus machine oil pump delivery and pump chamber internal pressure, the output power of having accomplished oil pump is adjustable in scope by a relatively large margin, and its energy-saving effect is better compared with fixed displacement oil pump.But be not difficult to find out from described variable-displacement oil pump, only have in the time that oil liquid pressure acquires a certain degree, just can overcome the elastic force of spring, thereby make external rotor swing the throw of eccentric that reduces inner and outer rotors, reach the effect that reduces oil pump discharge capacity, the throw of eccentric that this place is stated refers to the offset distance of the geometrical center of the rotation axis of internal rotor and the special-shaped inner chamber of external rotor.This type of is referred to as single-stage variable delivery pump by the variable delivery pump of single displacement adjusting mechanism control in the industry.Therefore for single-stage variable delivery pump, only have and in the time that oil liquid pressure arrives certain high pressure and overcomes spring force, just can play the energy-conservation effect that reduces discharging.And at the needed oil liquid pressure of motor with overcome between the required oil liquid pressure of above spring force or have energy dissipation to a certain extent.
Summary of the invention
The technical problems to be solved in the utility model is to provide one can in oil pump, make the multistage adjustable and better oil pump capacity controlling device of energy-saving effect of discharge capacity.
Technical solution of the present utility model is, provide a kind of oil pump capacity controlling device with following structure: it comprises the eccentric hoop be located in described pump chamber, with the rotor of the special-shaped inner chamber eccentric setting of described eccentric hoop with for reducing the emission reduction controlling mechanism of described eccentric hoop and rotor eccentricity distance, it is characterized in that: described oil pump capacity controlling device also comprises increasing discharge capacity controlling mechanism, described increasing discharge capacity controlling mechanism by solenoid valve respectively with unload oil pocket and working connection is connected, described solenoid valve is electrically connected with control unit.
As a kind of improvement of the present utility model, between one side of the outer circle wall of described eccentric hoop and the inwall of pump chamber, pass through straight pin chain connection, its opposite side is provided with extension arm, and described emission reduction controlling mechanism is located at the contrary side with respect to rotor eccentricity position of described extension arm.
Preferred as one, described emission reduction controlling mechanism refers to, described straight pin is provided with the first Sealing, between the right side of described extension arm and pump chamber inwall, be provided with the second Sealing, the gap between extension arm and pump chamber inwall is surrounded emission reduction pressure chamber by described the first Sealing and the second Sealing, and described emission reduction pressure chamber is connected with working connection by the first oil pipe of being located on the pump housing.
Further, the contrary side of emission reduction pressure chamber that is positioned at of described extension arm is connected with the pump housing by swing spring, and on the described pump housing, the position corresponding with described swing spring is provided with the containing groove of an accommodating described swing spring.
As another kind of improvement of the present utility model, described increasing discharge capacity controlling mechanism refers to, on described extension arm, between a side contrary with emission reduction pressure chamber and the pump housing, be provided with the 3rd Sealing, described the second Sealing and the 3rd Sealing surround the gap between extension arm and pump chamber inwall to increase discharge capacity pressure chamber, described increasing discharge capacity pressure chamber is connected with one end of being located at the second oil pipe on the pump housing, and the other end of described the second oil pipe is connected with described solenoid valve.
Preferred as one, the lower end surface of described extension arm is provided with the groove of an opening down direction, in described groove, be provided with the connecting tube that one end and groove inwall are slidably matched, between described connecting tube and groove inwall, be provided with the 3rd Sealing, by the 3rd Sealing and connecting tube, the cavity in described groove is surrounded and increases discharge capacity pressure chamber, described connecting tube is connected with one end of the second oil pipe through swing spring.
As last a kind of improvement of the present utility model, described solenoid valve is Proportional valve.
Adopt above structure, the utility model compared with prior art has the following advantages: in the time that rotating speed is lower, flow and the cavity pressure of described oil pump are lower, described increasing discharge capacity controlling mechanism is not worked, the hydraulic coupling of emission reduction controlling mechanism is less than the elastic force of swing spring, therefore extension arm, in a high position, makes eccentric hoop and rotor in maximum eccentricity position, i.e. large discharge capacity output.In the time that rotating speed improves, the hydraulic coupling of emission reduction controlling mechanism is greater than the elastic force of swing spring, and trend extension arm presses down, and the discharge capacity output of system is reduced, thereby reduces the output power of fluid.If the discharge capacity of fluid still cannot meet system requirements after rotating speed improves, pass through control unit opens solenoid valve, make to increase the work of discharge capacity controlling mechanism, order about and on extension arm, move to high displacement position.Therefore, be not difficult to find out, in the utility model, control discharge capacity by the single swing spring of prior art and two relative driver element controls of emission reduction controlling mechanism, change into three driver element controls of swing spring, emission reduction controlling mechanism and increasing discharge capacity controlling mechanism.Can realize the multilevel control to discharge capacity.More can passing ratio valve, realize the pressure that increases discharge capacity controlling mechanism and quantitatively controls, realize thus the stepless control of discharge capacity.So-called stepless control, by real-time adjusting, makes discharge capacity be stabilized in an optimum value, reaches optimum energy-saving effect.
Brief description of the drawings
Fig. 1 is the structural representation of oil pump capacity controlling device of the present utility model.
Fig. 2 is the another kind of structural representation of oil pump capacity controlling device of the present utility model.
Fig. 3 is the local enlarged diagram of " A " in Fig. 2.
Shown in figure: 1, pump chamber, 1.1, the first Sealing, 1.2, the second Sealing, 1.3, the 3rd Sealing, 2, eccentric hoop, 2.1, extension arm, 2.2, straight pin, 2.3, groove, 3, rotor, 4, emission reduction controlling mechanism, 4.1, emission reduction pressure chamber, 4.2, the first oil pipe, 4.3, swing spring, 4.4, containing groove, 5, increase discharge capacity controlling mechanism, 5.1, increase discharge capacity pressure chamber, 5.2, the second oil pipe, 5.3, connecting tube, 6, solenoid valve, 7, unloading port, 8, working connection, 9, control unit.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figure 1, oil pump capacity controlling device of the present utility model, comprise the eccentric hoop 2 of being located in described pump chamber 1,, with the rotor 3 of the special-shaped inner chamber eccentric setting of described eccentric hoop 2 with for reducing the emission reduction controlling mechanism 4 of described eccentric hoop 2 and rotor 3 eccentric distances.In the middle of referring to, the eccentric hoop 2 of above-mentioned indication is provided with the stationary torus of inner chamber, its inner chamber is the special-shaped inner chamber being made up of some arc surfaces, described rotor 3 is located in this abnormity inner chamber, and the axial location of described rotor 3 is in this abnormity inner cavity chamber eccentric setting, so-called bias is that the axial location of rotor 3 is conllinear not in the geometrical center of special-shaped inner chamber, being with moving vane when rotor 3 carries out in rotation process, because the size of the various piece of special-shaped cavity is all not identical, therefore eccentric in the situation that, the volume of cavity volume that blade surrounds is constantly changing, extruding air and the air-breathing process of expansion are produced thus, this is the basic functional principle of vane pump, this eccentric hoop 2 is technology common recognitions of related domain with the eccentric setting of rotor 3, therefore the large discharge capacity of eccentric distance is larger, eccentric distance small displacement is less is not have objection, just be not described in detail at this.
As can be seen here, described emission reduction controlling mechanism 4 is that eccentric distance by reducing eccentric hoop 2 and rotor 3 is realized emission reduction.Particularly, make to be rotationally connected between the side of outer circle wall of described eccentric hoop 2 and the inwall of pump chamber 1 i.e. left side shown in Fig. 1.This is rotationally connected can be to carry out chain connection by a straight pin 2.2.Its opposite side is provided with extension arm 2.1, and described emission reduction controlling mechanism 4 is located at the contrary side with respect to rotor 3 eccentric positions of described extension arm 2.1.The contrary side that this place refers to refers to that the relatively special-shaped inner chamber in center when rotor 3 is on the lower side, this emission reduction controlling mechanism 4 is located at the upper end that extension arm is relative, in diagram, can obviously find out, the center of rotor is on the lower side with respect to special-shaped inner chamber, so described emission reduction controlling mechanism 4 is located at the upper end of extension arm 2.1.Certainly, described emission reduction controlling mechanism 4 comprises an emission reduction pressure chamber 4.1, the first oil pipe 4.2 and a swing spring 4.3.Described emission reduction pressure chamber 4.1 is connected with working connection 8 by the first oil pipe 4.2, between the right side of described extension arm 2.1 and pump chamber 1 inwall, be provided with the second Sealing 1.2, between the upper end of described extension arm 2.1 and pump chamber 1 inwall, be also provided with the first Sealing 1.1, by the first Sealing 1.1 and the second Sealing 1.2, the gap between extension arm 2.1 and pump chamber 1 inwall surrounded thus to the emission reduction pressure chamber 4.1 of a sealing.Can be more that described the first Sealing 1.1 is located on straight pin 2.2, make described straight pin 2.2 not only play hinged rotary action, play seal action simultaneously.Described extension arm 2.1 side contrary to emission reduction pressure chamber 4.1 is connected with the pump housing by swing spring 4.3, and on the described pump housing, the position corresponding with described swing spring 4.3 is provided with the containing groove 4.4 of an accommodating described swing spring 4.3.Certain described containing groove 4.4 also can arrange the relevant position with extension arm 2.1, more can on the pump housing and extension arm 2.1, be equipped with symmetrical containing groove 4.4.
In addition, as shown in Figure 1, described oil pump capacity controlling device also comprises increasing discharge capacity controlling mechanism 5, and described increasing discharge capacity controlling mechanism 5 is connected with unloading port 7 and working connection 8 respectively by solenoid valve 6, and described solenoid valve 6 is electrically connected with control unit 9.The increasing discharge capacity controlling mechanism 5 of above-mentioned indication refers to, on described extension arm 2.1, between a side contrary with emission reduction pressure chamber 4.1 and the pump housing, be provided with the 3rd Sealing 1.3, described the second Sealing 1.2 and the 3rd Sealing 1.3 surround the gap between extension arm 2.1 and pump chamber 1 inwall to increase discharge capacity pressure chamber 5.1, described increasing discharge capacity pressure chamber 5.1 is connected with one end of being located at the second oil pipe 5.2 on the pump housing, and the other end of described the second oil pipe 5.2 is connected with described solenoid valve 6.Described swing spring 4.3 is also positioned at and increases discharge capacity pressure chamber 5.1.
Certainly change as a kind of, described increasing discharge capacity pressure chamber can be also not overlap with swing spring place cavity, particularly, the lower end surface of described extension arm 2.1 is provided with the groove 2.3 of an opening down direction, in described groove 2.3, be provided with the connecting tube 5.3 that one end and groove 2.3 inwalls are slidably matched, between described connecting tube 5.3 and groove 2.3 inwalls, be provided with the 3rd Sealing 1.3, by the 3rd Sealing 1.3 and connecting tube 5.3, the cavity in described groove 2.3 is surrounded and increases discharge capacity pressure chamber 5.1, described connecting tube 5.3 is connected with one end of the second oil pipe 5.2 through swing spring 4.3.By being not difficult to find out in Fig. 2, described groove 2.3 is located at the fixed end of described swing spring 4.3 and extension arm 2.1, and be less than the connecting tube 5.3 of described swing spring 4.3 by a diameter, through swing spring 4.3, be connected with this groove, and in described groove, be provided with the 3rd above-mentioned Sealing 1.3, the seal can be seal ring.Connecting tube 5.3 is moved up and down in process with extension arm 2.1 can be along with slip, and seals the increasing discharge capacity pressure chamber 5.1 in described groove, and the pressure of effective increasing discharge capacity is provided.Certain described connecting tube 5.3 can be selected flexible pipe, and now described connecting tube and groove can be fixed and be tightly connected.The position that can be more described groove 2.3 is different from the position of swing spring 4.3, the two non-interference.
Certainly the described solenoid valve being electrically connected with control unit 9 can be selected Proportional valve, it is the feature that passing ratio valve regulates in real time, realize the step-less adjustment of described increasing discharge capacity controlling mechanism 5, according to the demand of actual fluid discharge capacity, regulate in real time the pressure increasing in discharge capacity pressure chamber.
What deserves to be explained is, for the oil pump of single-stage Displacement Regulation, in order to ensure certain fluid discharge capacity, the elastic force inevitable requirement of its swing spring is larger, otherwise in the time of the high discharge capacity fluid of needs, the pressure of emission reduction controlling mechanism is just greater than spring force, makes extension arm be displaced downwardly to low discharge capacity position.And in oil pump capacity controlling device of the present utility model, increase discharge capacity pressure regulating mechanism owing to having set up one, therefore, the effect of its swing spring as just auxiliary recovery extension arm to high-order displacement position, the spring ratio of the swing spring of therefore, selecting can be lower.
Working principle of the present utility model is such: when rotating speed lower, when needing discharge capacity high, the force value of described low discharge capacity controlling mechanism is less than the elastic force of swing spring, makes the position of extension arm in a high discharge capacity, the input fluid of the normal high discharge capacity of system.After rotating speed promotes to a certain degree, oily pump delivery is higher, and now low discharge capacity controlling mechanism, because the affected by high of working connection makes the elastic force of its hydraulic coupling higher than swing spring, makes extension arm be displaced downwardly to low displacement position, reduces thus oily pump delivery.Thereby reduce the energy dissipation of unnecessary fluid.Simultaneously, if when the hydraulic coupling of described low discharge capacity controlling mechanism is during higher than the elastic force of described swing spring, when the discharge capacity of described fluid still cannot meet system fluid demand, by control unit opens solenoid valve, the second oil pipe is connected with working connection, thereby makes to increase the work of discharge capacity controlling mechanism, in its increasing discharge capacity pressure chamber, obtain high-voltage oil liquid, the hydraulic coupling of its hydraulic coupling and emission reduction pressure chamber is cancelled out each other, and makes extension arm still in high displacement position.And in the time that solenoid valve is selected Proportional valve, the stressing conditions at described extension arm two ends can regulate in real time, thereby reaches best discharge capacity demand, be referred to as stepless variable discharge capacity and regulate.
The foregoing is only preferred embodiment of the present utility model, not for limiting protection domain of the present utility model.All within spirit of the present utility model and principle, any amendment of doing, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (7)
1. an oil pump capacity controlling device, comprise the eccentric hoop (2) of being located in pump chamber (1), with the rotor (3) of the inner chamber eccentric setting being formed by some arc surfaces of described eccentric hoop (2) with for reducing the emission reduction controlling mechanism (4) of described eccentric hoop (2) and rotor (3) eccentric distance, it is characterized in that: described oil pump capacity controlling device also comprises increasing discharge capacity controlling mechanism (5), described increasing discharge capacity controlling mechanism (5) is connected with unloading port (7) and working connection (8) respectively by solenoid valve (6), described solenoid valve (6) is electrically connected with control unit (9).
2. oil pump capacity controlling device according to claim 1, it is characterized in that: between a side of the outer circle wall of described eccentric hoop (2) and the inwall of pump chamber (1), pass through straight pin (2.2) chain connection, its opposite side is provided with extension arm (2.1), and described emission reduction controlling mechanism (4) is located at the contrary side with respect to rotor (3) eccentric position of described extension arm (2.1).
3. oil pump capacity controlling device according to claim 2, it is characterized in that: described emission reduction controlling mechanism (4) refers to, described straight pin (2.2) is provided with the first Sealing (1.1), between the right side of described extension arm (2.1) and pump chamber (1) inwall, be provided with the second Sealing (1.2), the gap between extension arm (2.1) and pump chamber (1) inwall is surrounded emission reduction pressure chamber (4.1) by described the first Sealing (1.1) and the second Sealing (1.2), described emission reduction pressure chamber (4.1) is connected with working connection (8) by the first oil pipe (4.2) of being located on the pump housing.
4. oil pump capacity controlling device according to claim 3, it is characterized in that: the contrary side of emission reduction pressure chamber (4.1) that is positioned at of described extension arm (2.1) is connected with the pump housing by swing spring (4.3), and on the described pump housing, the position corresponding with described swing spring (4.3) is provided with the containing groove (4.4) of an accommodating described swing spring (4.3).
5. oil pump capacity controlling device according to claim 4, it is characterized in that: described increasing discharge capacity controlling mechanism (5) refers to, between the upper side contrary with emission reduction pressure chamber (4.1) of described extension arm (2.1) and the pump housing, be provided with the 3rd Sealing (1.3), described the second Sealing (1.2) and the 3rd Sealing (1.3) surround the gap between extension arm (2.1) and pump chamber (1) inwall to increase discharge capacity pressure chamber (5.1), described increasing discharge capacity pressure chamber (5.1) is connected with one end of being located at the second oil pipe (5.2) on the pump housing, the other end of described the second oil pipe (5.2) is connected with described solenoid valve (6).
6. oil pump capacity controlling device according to claim 5, it is characterized in that: the lower end surface of described extension arm (2.1) is provided with the groove (2.3) of an opening down direction, in described groove (2.3), be provided with the connecting tube (5.3) that one end and groove (2.3) inwall are slidably matched, between described connecting tube (5.3) and groove (2.3) inwall, be provided with the 3rd Sealing (1.3), by the 3rd Sealing (1.3) and connecting tube (5.3), the cavity in described groove (2.3) is surrounded and increases discharge capacity pressure chamber (5.1), described connecting tube (5.3) is connected with one end of the second oil pipe (5.2) through swing spring (4.3).
7. oil pump capacity controlling device according to claim 1, is characterized in that: described solenoid valve (6) is Proportional valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320639567.4U CN203656545U (en) | 2013-10-16 | 2013-10-16 | Oil pump displacement regulation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320639567.4U CN203656545U (en) | 2013-10-16 | 2013-10-16 | Oil pump displacement regulation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203656545U true CN203656545U (en) | 2014-06-18 |
Family
ID=50922930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320639567.4U Withdrawn - After Issue CN203656545U (en) | 2013-10-16 | 2013-10-16 | Oil pump displacement regulation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203656545U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103499007A (en) * | 2013-10-16 | 2014-01-08 | 宁波圣龙汽车动力***股份有限公司 | Oil pump discharging amount regulating device |
| CN115095519A (en) * | 2022-07-06 | 2022-09-23 | 湖南机油泵股份有限公司 | Swing type variable displacement oil pump |
-
2013
- 2013-10-16 CN CN201320639567.4U patent/CN203656545U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103499007A (en) * | 2013-10-16 | 2014-01-08 | 宁波圣龙汽车动力***股份有限公司 | Oil pump discharging amount regulating device |
| CN103499007B (en) * | 2013-10-16 | 2016-08-17 | 宁波圣龙汽车动力***股份有限公司 | Oil pump capacity adjusting means |
| CN115095519A (en) * | 2022-07-06 | 2022-09-23 | 湖南机油泵股份有限公司 | Swing type variable displacement oil pump |
| CN115095519B (en) * | 2022-07-06 | 2024-04-16 | 湖南机油泵股份有限公司 | Oscillating variable displacement oil pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140618 Effective date of abandoning: 20160817 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |