CN105114302A - Efficient energy-saving brushless diesel pump - Google Patents
Efficient energy-saving brushless diesel pump Download PDFInfo
- Publication number
- CN105114302A CN105114302A CN201510563506.8A CN201510563506A CN105114302A CN 105114302 A CN105114302 A CN 105114302A CN 201510563506 A CN201510563506 A CN 201510563506A CN 105114302 A CN105114302 A CN 105114302A
- Authority
- CN
- China
- Prior art keywords
- controller
- oil
- signal input
- input part
- signal output
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
The invention discloses an efficient energy-saving brushless diesel pump which comprises a shell, a brushless motor assembly, a controller, a filtering device, an oil inlet volume detecting device and a flow controlling device. The flow controlling device is composed of an oil spray volume detector and a voltage regulator, wherein the oil spray volume detector and the voltage regulator are electrically connected with the controller; the oil spray volume detector is arranged inside an oil spray nozzle of a diesel engine; the voltage regulator is arranged inside a controller seat. The intermittent work time of the diesel pump can be set through a timing controller, and the working efficiency and energy-saving effect of a product are improved; voltage-variable oil supply can be set through the flow controlling device according to the required oil supply volume, the power waste of a motor is avoided, and the diesel pump saves more energy and is more economical; the oil inlet volume detecting device detects whether oil exists in an oil tank or not, a pump body can be prevented from idling, and the service life is prolonged; the oil can be preheated through a heating device; meanwhile, the diesel pump is compact in structure and is driven through the brushless motor, noise is low, and the service life of the product is greatly prolonged.
Description
Technical field
The present invention relates to a kind of diesel injection device, be specifically related to a kind of energy-efficient brushless diesel pump.
Background technique
Diesel pump is being transported in transport pipe after diesel oil sucking-off from diesel fuel tanks, pressurization, ensureing the fuel oil continued to oil nozzle supply, area cold in the north etc., and because temperature is too low, that diesel oil is extremely easy in fuel tank is freezing, cannot pass through diesel pump sucking-off; The oil pump of prior art, twin roller structure taked usually by the pump housing, this structure is compact not, make whole Oil pump electrical machinery load excessive, reduce the effective output of motor, and the oil pump of this class formation technician can not stop oil suction operation when fuel tank is without oil, easily cause the pump housing dry then burn; Secondly the fuel delivery of oil pump of the prior art is all constant, and under not needing to supply oil condition in a large number, it is by Decompression valves draining, thus causes power of motor waste, very uneconomical.
Summary of the invention
For solving the problem, the present invention proposes a kind of energy-efficient brushless diesel pump with preheat oil, timing fuel feeding, transformation fuel feeding and anti-dry rotating function.
The technical solution adopted in the present invention is: a kind of energy-efficient brushless diesel pump, comprise: shell, described shell is by main casing, and be arranged on bonnet and the controller seat of main casing lower end and upper end, and be arranged on the gland composition of controller seat upper end, the side of bonnet is provided with filler opening, and opposite side is provided with oil drain valve, and the side of controller seat is provided with oil outlet; Brushless electric machine assembly, described brushless electric machine assembly comprises the stator module be arranged on main casing inwall, and is arranged on the dead axle on main casing inner axes line by positioning plate and bonnet, and suit and dead axle on rotor core; Pump housing assembly, described pump housing assembly comprises and is set in connector on dead axle and gear, and is set in the gear cover plate on connector, and the roller be set in successively on gear and gear outer ring, connector and gear are positioned at the downside of rotor core successively, and the side of gear cover plate is connected with gear; Controller, is installed in controller seat; Filtrating equipment, described filtrating equipment is arranged on bottom bonnet filler opening, and it comprises installation ring seat, and is located at the filter screen installed in ring seat inner ring, and is located at installation ring seat inside and the heating equipment be electrically connected with controller; Oil inlet quantity detection device, described oil inlet quantity detection device is arranged in filler opening, and is electrically connected with controller; And flow control device, described flow control device is made up of the fuel injection quantity detector be electrically connected with controller respectively and voltage regulator, and fuel injection quantity detector is provided with in the oil nozzle of diesel engine, and voltage regulator is located in controller seat.
Further, the bottom of described filtrating equipment is also provided with the temperature transducer be electrically connected with controller.
Further, described oil outlet is connected with diesel injector by transport pipe, and described fuel injection quantity detector is arranged on oil outlet place.
Further, O-ring seals is provided with between described bonnet and main casing.
Further, described roller comprises multiple, is uniformly distributed on described gear.
Further, described roller is five.
Further, described controller comprises main controller, timing controller, counterelectromotive force phase discriminator, over-current detection circuit, predrive and power stage, the signal input part of described main controller respectively with the signal output part of timing controller, the signal output part of counterelectromotive force phase discriminator, the signal output part of over-current detection circuit connects, the signal output part of oil inlet quantity detection device is connected with the signal output part of fuel injection quantity detector, the signal output part of described main controller respectively with the signal input part of predrive, the signal input part of heating equipment is connected with the signal input part of voltage regulator, the signal output part of described predrive is connected with the signal input part of power stage, the signal output part of described power stage respectively with the signal input part of counterelectromotive force phase discriminator, the signal input part of over-current detection circuit is connected with the signal input part of diesel pump, the signal output part of described voltage regulator is connected with the signal input part of diesel pump.
Further, described predrive and power stage comprise multiple, and quantity is identical, the signal output part of described main controller is connected with the signal input part of each predrive respectively, the signal output part of each predrive connects with the signal input part of corresponding power stage respectively, the signal output part of each power stage is connected with the signal input part of counterelectromotive force phase discriminator and the signal input part of diesel pump respectively, and the signal output part after each power stage series connection is connected with the signal input part of over-current detection circuit.
Further, described rotor core two ends are embedded with bearing respectively, and described bearing housing is loaded on dead axle.
Compared with prior art, it has following beneficial effect in the present invention:
Energy-efficient brushless diesel pump of the present invention, by adopting five roller-type pump body structures, improves charge oil pressure of the present invention and fuel supply flow rate greatly; The discontinuous operation time of diesel pump can be set by the timing controller of intelligent controller, improve working efficiency and the energy-saving effect of product; Can, according to required fuel delivery setting transformation fuel feeding, power of motor be avoided to waste, more energy saving economy by flow control device; Detect fuel tank by oil inlet quantity detection device and whether have oil, dry turn of the pump housing can be prevented, improve working life; Also can be oil by heating equipment and carry out preheating, even if temperature is too low also can carry out fuel feeding operation; Compact structure of the present invention simultaneously, adopt brushless electric machine to drive, noise is little, and improves the working life of product greatly.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention;
Fig. 2 is the structured flowchart of controller of the present invention.
1-main casing; 2-bonnet; 3-controller seat; 4-gland; 5-filler opening; 6-oil drain valve; 7-oil outlet; 8-stator module; 9-positioning plate; 10-dead axle; 11-rotor core; 12-connector; 13-gear; 14-gear cover plate; 15-roller; 16-gear outer ring; 17-controller; 18-installs ring seat; 19-filter screen; 20-heating equipment; 21-oil inlet quantity detection device; 22-fuel injection quantity detector; 23-voltage regulator; 24-temperature transducer; 25-transport pipe; 26-O shape seal ring; 100-oil nozzle; 101-main controller; 102-timing controller; 103-counterelectromotive force phase discriminator; 104-over-current detection circuit; 105-predrive; 106-power stage.
Embodiment
Clearly understand to make object of the present invention, technological scheme and advantage, below in conjunction with drawings and the embodiments, the present invention is further elaborated, should be understood to, embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
The energy-efficient brushless diesel pump of one as depicted in figs. 1 and 2, comprise: shell, described shell is by main casing 1, and be arranged on bonnet 2 and the controller seat 3 at main casing about 1 two ends, and the gland 4 being arranged on controller seat 3 upper end forms, the side of bonnet 2 is provided with filler opening 5, and opposite side is provided with oil drain valve 6, and the side of controller seat 3 is provided with oil outlet 7, brushless electric machine assembly, described brushless electric machine assembly comprises the stator module 8 be arranged on main casing 1 inwall, and is arranged on the dead axle 10 on main casing 1 inner axes line by positioning plate 9 and bonnet 2, and suit and dead axle 10 on rotor core 11, pump housing assembly, described pump housing assembly comprises and is set in connector 12 on dead axle 10 and gear 13, and the gear cover plate 14 be set on connector 12, and the roller 15 be set in successively on gear 13 and gear outer ring 16, connector 12 and gear 13 are positioned at the downside of rotor core 11 successively, and the side of gear cover plate 14 is connected with gear 13, controller 17, is installed in described controller seat 3, filtrating equipment, described filtrating equipment is arranged on bottom bonnet 2 filler opening 5, it comprises installs ring seat 18, and be located at the filter screen 19 installed in ring seat 18 inner ring, and be located at installation ring seat 18 inside and the heating equipment 20 be electrically connected with controller 17, heating equipment 20 can the freezing situation of diesel oil in the too low and fuel tank of temperature to carrying out preheating, to ensure pump housing normal fuel injection, oil inlet quantity detection device 21, described oil inlet quantity detection device 21 is arranged in filler opening 5, and be electrically connected with controller 17, oil inlet quantity detection device 21, for detect pump housing filler opening 7 whether have into, stop pump housing work when oil mass is too low to feed back to controller 17 in time, prevent it dry then burn, and flow control device, described flow control device is made up of the fuel injection quantity detector 22 be electrically connected with controller 17 respectively and voltage regulator 23, fuel injection quantity detector 22 is provided with in the oil nozzle 100 of diesel engine, voltage regulator 23 is located in controller seat 3, the output signal of fuel injection quantity detector 22 is sent to controller 17, and pass through the output voltage of controller 17 control voltage regulator 23, the output signal size of fuel injection quantity detector 22 needs how many with diesel engine to fuel oil and changes, the output voltage of voltage regulator 23 is regulated by the output signal size of fuel injection quantity detector 22, thus realize pump housing output flow and change thereupon.
Wherein, described roller 15 is provided with five, is uniformly distributed on described gear 13, described controller 17 comprises main controller 101, timing controller 102, counterelectromotive force phase discriminator 103, over-current detection circuit 104, predrive 105 and power stage 106, the signal input part of described main controller 101 respectively with the signal output part of timing controller 102, the signal output part of counterelectromotive force phase discriminator 103, the signal output part of over-current detection circuit 104 connects, the signal output part of oil inlet quantity detection device 21 is connected with the signal output part of fuel injection quantity detector 22, the signal output part of described main controller 101 respectively with the signal input part of predrive 105, the signal input part of heating equipment 20 is connected with the signal input part of voltage regulator 23, the signal output part of described predrive 105 is connected with the signal input part of power stage 106, the signal output part of described power stage 106 respectively with the signal input part of counterelectromotive force phase discriminator 103, the signal input part of over-current detection circuit 104 is connected with the signal input part of diesel pump, the described signal output part of voltage regulator 23 is connected with the signal input part of diesel pump, described predrive 105 and power defeated 106 go out to comprise multiple, and quantity is identical, the signal output part of described main controller 101 is connected with the signal input part of each predrive 105 respectively, the signal output part of each predrive 105 connects with the signal input part of corresponding power stage 106 respectively, the signal output part of each power stage 106 is connected with the signal input part of counterelectromotive force phase discriminator 103 and the signal input part of diesel pump respectively, and the signal output part after each power stage 106 series connection is connected with the signal input part of over-current detection circuit 104, described rotor core 11 two ends are embedded with bearing respectively, and described bearing housing is loaded on dead axle 10.
For the ease of diesel oil preheating operation, being also provided with the temperature transducer 24 be electrically connected with controller 17 in the bottom of described filtrating equipment, detecting diesel fuel temperature in fuel tank the need of carrying out warm-up operation by temperature transducer 24.
In order to improve the sealability of shell, between the bonnet 2 and main casing 1 of shell, be also provided with O-ring seals 26.
Described oil outlet 7 is connected with diesel injector 100 by transport pipe 25, and in some embodiments, for the ease of having installed maintenance, described fuel injection quantity detector 22 is arranged on oil outlet 7 place.
Energy-efficient brushless diesel pump of the present invention, by adopting five roller-type pump body structures, improves charge oil pressure of the present invention and fuel supply flow rate greatly; The discontinuous operation time of diesel pump can be set by the timing controller of intelligent controller, improve working efficiency and the energy-saving effect of product; Can, according to required fuel delivery setting transformation fuel feeding, power of motor be avoided to waste, more energy saving economy by flow control device; Detect fuel tank by oil inlet quantity detection device and whether have oil, dry turn of the pump housing can be prevented, improve working life; Also can be oil by heating equipment and carry out preheating, even if temperature is too low also can carry out fuel feeding operation; Compact structure of the present invention simultaneously, adopt brushless electric machine to drive, noise is little, and improves the working life of product greatly.
Embodiment recited above is described the preferred embodiment of the present invention, not limits the spirit and scope of the present invention.Under the prerequisite not departing from design concept of the present invention; the various modification that related domain ordinary person makes technological scheme of the present invention and improvement; all should drop into protection scope of the present invention, the technology contents of request protection of the present invention, all records in detail in the claims.
Claims (9)
1. an energy-efficient brushless diesel pump, it is characterized in that: comprising: shell, described shell is by main casing (1), and be arranged on bonnet (2) and the controller seat (3) of main casing (1) lower end and upper end, and be arranged on gland (4) composition of controller seat (3) upper end, the side of bonnet (2) is provided with filler opening (5), opposite side is provided with oil drain valve (6), and the side of controller seat (3) is provided with oil outlet (7); Brushless electric machine assembly, described brushless electric machine assembly comprises the stator module (8) be arranged on main casing (1) inwall, and the dead axle (10) be arranged on by positioning plate (9) and bonnet (2) on main casing (1) inner axes line, and be set with and rotor core (11) on dead axle (10); Pump housing assembly, described pump housing assembly comprises and is set in connector (12) on dead axle (10) and gear (13), and the gear cover plate (14) be set on connector (12), and the roller (15) be set in successively on gear (13) and gear outer ring (16), connector (12) and gear (13) are positioned at the downside of rotor core (11) successively, and the side of gear cover plate (14) is connected with gear (13); Controller (17), is installed in described controller seat (3); Filtrating equipment, described filtrating equipment is arranged on bonnet (2) filler opening (5) bottom, it comprises installs ring seat (18), and be located at the filter screen (19) installed in ring seat (18) inner ring, and be located at installation ring seat (18) inside and the heating equipment (20) be electrically connected with controller (17); Oil inlet quantity detection device (21), described oil inlet quantity detection device (21) is arranged in filler opening (5), and is electrically connected with controller (17); And flow control device, described flow control device is made up of the fuel injection quantity detector (22) be electrically connected with controller (17) respectively and voltage regulator (23), fuel injection quantity detector (22) is provided with in the oil nozzle (100) of diesel engine, and voltage regulator (23) is located in controller seat (3).
2. energy-efficient brushless diesel pump according to claim 1, is characterized in that: the bottom of described filtrating equipment is also provided with the temperature transducer (24) be electrically connected with controller (17).
3. energy-efficient brushless diesel pump according to claim 1, it is characterized in that: described oil outlet (7) is connected with diesel injector (100) by transport pipe (25), described fuel injection quantity detector (22) is arranged on oil outlet (7) place.
4. energy-efficient brushless diesel pump according to claim 1, is characterized in that: be provided with O-ring seals (26) between described bonnet (2) and main casing (1).
5. energy-efficient brushless diesel pump according to claim 1, is characterized in that: described roller (15) comprises multiple, is uniformly distributed on described gear (13).
6. energy-efficient brushless diesel pump according to claim 6, is characterized in that: described roller (15) is five.
7. energy-efficient brushless diesel pump according to claim 1, it is characterized in that: described controller (17) comprises main controller (101), timing controller (102), counterelectromotive force phase discriminator (103), over-current detection circuit (104), predrive (105) and power stage (106), the signal input part of described main controller (101) respectively with the signal output part of timing controller (102), the signal output part of counterelectromotive force phase discriminator (103), the signal output part of over-current detection circuit (104) connects, the signal output part of oil inlet quantity detection device (21) is connected with the signal output part of fuel injection quantity detector (22), the signal output part of described main controller (101) respectively with the signal input part of predrive (105), the signal input part of heating equipment (20) is connected with the signal input part of voltage regulator (23), the signal output part of described predrive (105) is connected with the signal input part of power stage (106), the signal output part of described power stage (106) respectively with the signal input part of counterelectromotive force phase discriminator (103), the signal input part of over-current detection circuit (104) is connected with the signal input part of diesel pump, the signal output part of described voltage regulator (23) is connected with the signal input part of diesel pump.
8. energy-efficient brushless diesel pump according to claim 7, it is characterized in that: described predrive (105) and power defeated (106) go out to comprise multiple, and quantity is identical, the signal output part of described main controller (101) is connected with the signal input part of each predrive (105) respectively, the signal output part of each predrive (105) connects with the signal input part of corresponding power stage (106) respectively, the signal output part of each power stage (106) is connected with the signal input part of counterelectromotive force phase discriminator (103) and the signal input part of diesel pump respectively, signal output part after each power stage (106) series connection is connected with the signal input part of over-current detection circuit (104).
9. energy-efficient brushless diesel pump according to claim 1, it is characterized in that: described rotor core (11) two ends are embedded with bearing respectively, described bearing housing is loaded on dead axle (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510563506.8A CN105114302A (en) | 2015-09-08 | 2015-09-08 | Efficient energy-saving brushless diesel pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510563506.8A CN105114302A (en) | 2015-09-08 | 2015-09-08 | Efficient energy-saving brushless diesel pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105114302A true CN105114302A (en) | 2015-12-02 |
Family
ID=54662377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510563506.8A Pending CN105114302A (en) | 2015-09-08 | 2015-09-08 | Efficient energy-saving brushless diesel pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105114302A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109642566A (en) * | 2016-08-09 | 2019-04-16 | 日本电产株式会社 | Driving device |
| CN112049792A (en) * | 2016-08-09 | 2020-12-08 | 日本电产株式会社 | Drive device |
| US11022112B2 (en) | 2016-08-09 | 2021-06-01 | Nidec Corporation | Drive apparatus including housing which contains oil |
| US11616419B2 (en) | 2016-08-09 | 2023-03-28 | Nidec Corporation | Motor unit with oil cooling passage |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010055537A1 (en) * | 1997-10-21 | 2001-12-27 | Grupping Arnold W.J. | Downhole roller vane motor and roller vane pump |
| WO2008155303A1 (en) * | 2007-06-20 | 2008-12-24 | Inergy Automotive Systems Research (Société Anonyme) | Process for starting a pump |
| CN203130461U (en) * | 2013-03-08 | 2013-08-14 | 天津加马电潜泵有限责任公司 | Idling-preventing electric submersible pump |
| CN203453052U (en) * | 2013-08-05 | 2014-02-26 | 温州市康松汽车零部件有限公司 | Efficient large-flow brushless diesel injection pump |
| CN104456973A (en) * | 2014-12-04 | 2015-03-25 | 珠海格力电器股份有限公司 | Hot water return device and control method thereof |
| CN104612867A (en) * | 2014-12-24 | 2015-05-13 | 中国第一汽车股份有限公司 | Variable flow low pressure fuel oil supplying device and method for pressurizing gasoline direct injection engine |
| CN205101223U (en) * | 2015-09-08 | 2016-03-23 | 温州市康松汽车零部件有限公司 | Energy -efficient brushless diesel pump |
-
2015
- 2015-09-08 CN CN201510563506.8A patent/CN105114302A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010055537A1 (en) * | 1997-10-21 | 2001-12-27 | Grupping Arnold W.J. | Downhole roller vane motor and roller vane pump |
| WO2008155303A1 (en) * | 2007-06-20 | 2008-12-24 | Inergy Automotive Systems Research (Société Anonyme) | Process for starting a pump |
| CN203130461U (en) * | 2013-03-08 | 2013-08-14 | 天津加马电潜泵有限责任公司 | Idling-preventing electric submersible pump |
| CN203453052U (en) * | 2013-08-05 | 2014-02-26 | 温州市康松汽车零部件有限公司 | Efficient large-flow brushless diesel injection pump |
| CN104456973A (en) * | 2014-12-04 | 2015-03-25 | 珠海格力电器股份有限公司 | Hot water return device and control method thereof |
| CN104612867A (en) * | 2014-12-24 | 2015-05-13 | 中国第一汽车股份有限公司 | Variable flow low pressure fuel oil supplying device and method for pressurizing gasoline direct injection engine |
| CN205101223U (en) * | 2015-09-08 | 2016-03-23 | 温州市康松汽车零部件有限公司 | Energy -efficient brushless diesel pump |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109642566A (en) * | 2016-08-09 | 2019-04-16 | 日本电产株式会社 | Driving device |
| US10690134B2 (en) | 2016-08-09 | 2020-06-23 | Nidec Corporation | Drive device |
| US10746172B2 (en) | 2016-08-09 | 2020-08-18 | Nidec Corporation | Drive device |
| CN112049792A (en) * | 2016-08-09 | 2020-12-08 | 日本电产株式会社 | Drive device |
| US10941768B2 (en) | 2016-08-09 | 2021-03-09 | Nidec Corporation | Drive device |
| US11022112B2 (en) | 2016-08-09 | 2021-06-01 | Nidec Corporation | Drive apparatus including housing which contains oil |
| US11136975B2 (en) | 2016-08-09 | 2021-10-05 | Nidec Corporation | Drive apparatus having oil passage defined in stopper body |
| US11616419B2 (en) | 2016-08-09 | 2023-03-28 | Nidec Corporation | Motor unit with oil cooling passage |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105114302A (en) | Efficient energy-saving brushless diesel pump | |
| CN101943072B (en) | Fuel system with electrically-controllable mechanical pressure regulator | |
| CN205101223U (en) | Energy -efficient brushless diesel pump | |
| CN204458375U (en) | A kind of centrifugal pump self-suction system | |
| CN202012424U (en) | Fuel oil filter seat and fuel oil filter with same | |
| JP2007285285A (en) | Fuel supply system and fuel forced recovery method of lpi engine | |
| CN203627049U (en) | Pumped oil pre-heating device for engine | |
| CN201326551Y (en) | Intelligent water pump | |
| CN203189172U (en) | Oil-pumping heating prefilter | |
| CN201273232Y (en) | Automatic temperature control heating equipment of diesel vehicle fuel system | |
| CN105917102A (en) | Method to reduce fuel system power consumption | |
| CN201461399U (en) | Skid-mounting system for multiphase pump | |
| CN103362798A (en) | High-efficiency large-flow brushless diesel oil injector | |
| CN207892849U (en) | Liquid energy recovered water pump and its liquid energy recovery system | |
| CN113915138B (en) | Pump vacuumizing-free starting method | |
| CN208718815U (en) | High-pressure high-flow environmental protection integration electric fuel pump device | |
| CN204098986U (en) | Integrated type oil lubricating module assembly | |
| CN203453052U (en) | Efficient large-flow brushless diesel injection pump | |
| CN202545076U (en) | Automatic emptying device for oil path of diesel engine | |
| CN206647197U (en) | A kind of diesel low-voltage oil circuit electrodynamic pump fuel filter | |
| CN204060656U (en) | A kind of pressure break pump truck that can realize self-suction discharge | |
| CN201753646U (en) | Electrical oil delivery pump system of electric-controlled diesel engine with connecting support | |
| CN101701579A (en) | High-pressure plunger pump pressure-regulating system with easy starting function | |
| CN112282955A (en) | Method, device and system for improving plateau oil supply capacity of engine | |
| CN207647789U (en) | A kind of self priming pump of machinery automatic control vacuum aided |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151202 |