CN102182539A - Diesel engine and seawater pump thereof - Google Patents
Diesel engine and seawater pump thereof Download PDFInfo
- Publication number
- CN102182539A CN102182539A CN2011100340048A CN201110034004A CN102182539A CN 102182539 A CN102182539 A CN 102182539A CN 2011100340048 A CN2011100340048 A CN 2011100340048A CN 201110034004 A CN201110034004 A CN 201110034004A CN 102182539 A CN102182539 A CN 102182539A
- Authority
- CN
- China
- Prior art keywords
- water
- diesel engine
- valve body
- water pump
- sea water
- 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
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a diesel engine seawater pump which comprises a pump body with a water inlet cavity and a water outlet cavity, and a bypass valve is arranged between the water inlet cavity and the water outlet cavity. A water inlet of the bypass valve is communicated with the water outlet cavity, and a water outlet of the bypass valve is communicated with the water inlet cavity. The bypass valve comprises a valve body, a valve core and a spring, wherein the valve core and the spring are arranged in a cavity of the valve body, the water inlet is located at one end of the valve body, the water outlet is located on the side wall of the valve body, and the valve core shuts off the water inlet of the valve body under the support of the spring. The seawater pump can always supply sufficient cooling water when a diesel engine operates at various rotating speeds, so as to maintain normal water pressure and ensure the normal cooling of the diesel engine. The invention also discloses a diesel engine with the seawater pump.
Description
Technical field
The present invention relates to technical field of engines, particularly relate to the sea water pump of marine diesel engine cooling system.The invention still further relates to the diesel engine that is provided with described sea water pump.
Background technique
Advantage such as at present, diesel engine is low with its oil consumption, the thermal efficiency is high, power range is broad, convenient, safe and reliable to operation, easy to maintenance rapidly, the long service life of starting and in all trades and professions, obtained application widely.
In diesel engine, the nearly 45-50% of the heat energy that fuel combustion is emitted is converted into useful work, and 25-35% will shed from parts such as piston, cylinders in addition, for guaranteeing the unlikely too high work that influences of heating part temperature, must supply with cooling liquid.
Cooling system is an important system of diesel engine, its type of cooling mainly is divided into air-cooled and water-cooled two big classes, the air-cooled mini engine that is used for more, marine diesel engine adopts water cooling system more, it can be divided into two kinds again: a kind of is that open type is dashed but system, with sea water pump seawater is delivered to diesel engine cooling cavity from the outboard suction, drain into outboard after the cooling again; Another kind is a closed cooling system, and with fresh water circulation cooling diesel engine, and the fresh water that is heated cools off with seawater again, guarantees that it works in certain temperature range reliably.As seen, no matter the sort of type of cooling of diesel engine using, sea water pump all is one of critical component that influences its cooling performance.
Because sea water pump peculiar to vessel is generally all driven by diesel engine itself, parameters such as its rotating speed, flow, lift are set according to the diesel engine rated engine speed, the water output of sea water pump is relevant with its rotating speed, and the rotating speed of sea water pump is directly proportional with the actual speed of diesel engine, diesel engine is when idling and low cruise like this, just occur easily the sea water pump lift inadequately, do not go up the phenomenon of water and underfed.
If for guaranteeing that diesel engine sea water pump when idling and low cruise can meet the requirements of flow and lift, will or use little water pump pulley instead by increasing water pump vane diameter, add large speed ratio, and improve the rotating speed of sea water pump and realize.But so, diesel engine just causes the sea water pump discharge pressure too high when running up easily, and not only Wu Wei consumption diesel engine power, and too high hydraulic pressure causes circulation waterway related components fault easily.
In addition, change the belt pulley speed ratio, need to change corresponding water pump pulley, not only operation inconvenience, and the damage that can bring some unnecessary troubles and component according to the diesel engine running speed.
Therefore, how guaranteeing that sea water pump can both supply with enough cooling waters when the operation of the various rotating speeds of diesel engine, to keep normal water pressure, guarantee that diesel engine cools off normally, is the present technical issues that need to address of those skilled in the art.
Summary of the invention
First purpose of the present invention provides a kind of diesel engine sea water pump.This sea water pump can both be supplied with enough cooling waters when the various rotating speeds of diesel engine move, thereby keeps normal water pressure, guarantees that diesel engine cools off normally.
Second purpose of the present invention provides a kind of diesel engine that is provided with above-mentioned sea water pump.
In order to realize above-mentioned first purpose, the invention provides a kind of diesel engine sea water pump, comprise the pump housing with water-inlet cavity and water chamber, be provided with bypass valve between described water-inlet cavity and the water chamber; The water intake of described bypass valve is communicated with described water chamber, and the water outlet of described bypass valve is communicated with described water-inlet cavity.
Preferably, described bypass valve comprises valve body, spool and spring, and described spool and spring are located in the inner chamber of described valve body, and described water intake is positioned at an end of described valve body, described water outlet is positioned on the sidewall of described valve body, and described spool is closed the water intake of described valve body under the support of spring.
Preferably, described bypass valve specifically is installed on the dividing plate between described water-inlet cavity and the water chamber.
Preferably, have the thread bush that is communicated with described water-inlet cavity and water chamber on the described dividing plate, water intake one end of described valve body has outside thread, is threaded with described thread bush.
Preferably, the other end relative with described water intake on the described valve body is provided with the nut that is threaded, and described spring is supported on the described nut with respect to the other end of spool.
Preferably, the other end relative with described water intake is provided with the yi word pattern opening slot on the described valve body.
Preferably, described water outlet be a plurality of on described valve body radially-arranged circular hole.
Preferably, described spool is the steel ball of diameter greater than described water intake.
Preferably, the water-inlet cavity ingress of described valve body is provided with safety check.
In order to realize above-mentioned second purpose, the present invention also provides a kind of diesel engine, comprises the cooling system that is provided with sea water pump, and described sea water pump is specially above-mentioned each described diesel engine sea water pump.
Diesel engine sea water pump provided by the invention has additional bypass valve between the water-inlet cavity of its pump housing and water chamber, the water intake of described bypass valve is communicated with described water chamber, and the water outlet of described bypass valve is communicated with described water-inlet cavity.So, when the discharge pressure of sea water pump reaches or surpass specified value, under the effect of hydraulic pressure, open bypass valve automatically, make unnecessary seawater turn back to the water-inlet cavity of sea water pump by bypass valve, realize the too high pressure release function of hydraulic pressure, the assurance sea water pump can both be supplied with enough cooling water flows and lift when the various rotating speeds of diesel engine move, can avoid simultaneously the consumption diesel engine power of doing nothing because of discharge pressure is too high, and circulation waterway related components fault, constantly keep normal water pressure, guarantee that diesel engine cools off normally, the sea water pump pressure of supply water is low when having solved the ubiquitous low speed of present ship machine, the too high problem of pressure of supply water when not going up water and high speed.
In a kind of embodiment, described bypass valve comprises valve body, spool and spring, described spool and spring are located in the inner chamber of described valve body, described water intake is positioned at an end of described valve body, described water outlet is positioned on the sidewall of described valve body, and described spool is closed the water intake of described valve body under the support of spring.This bypass valve is realized opening by the steel ball pressure spring by water pressure, when the discharge pressure of sea water pump reaches or surpass specified value, the part seawater of water chamber is flowed through and is turned back to the water-inlet cavity of sea water pump behind the water intake opened, body cavity, the water outlet, it is simple and reasonable for structure, and use is reliable, maintaining is convenient.
Diesel engine provided by the present invention is provided with above-mentioned sea water pump, because above-mentioned sea water pump has above-mentioned technique effect, the diesel engine with this sea water pump also should possess the corresponding techniques effect.
Description of drawings
Fig. 1 is the structure principle chart of diesel engine sea water pump provided by the present invention;
Fig. 2 is the structural representation of a kind of embodiment of diesel engine sea water pump provided by the present invention;
Fig. 3 is the local enlarged diagram at I position among Fig. 2;
Fig. 4 is the local enlarged diagram at II position among Fig. 2.
Among Fig. 1 to Fig. 4:
10. 80. safety check 80-1., the first spool 80-2., the second spool 80-3. elastic component is taken in 70. water inlets of pump housing 10-1. water-inlet cavity 10-2. water chamber 10-3. dividing plate 10-3-1. thread bush 20. bypass valve 20-1. valve body 20-1-1. water intake 20-1-2. water outlet 20-1-3. opening slot 20-2. spool 20-3. spring 20-4. nuts 30. main shafts 40. bearing suppories 50. impellers 60. belt pulleys
Embodiment
Core of the present invention is to provide a kind of diesel engine sea water pump.This sea water pump can both be supplied with enough cooling waters when the various rotating speeds of diesel engine move, thereby keeps normal water pressure, guarantees that diesel engine cools off normally.
Another core of the present invention provides a kind of diesel engine that is provided with above-mentioned sea water pump.
In order to make those skilled in the art person understand the present invention program better, the present invention is described in further detail below in conjunction with the drawings and specific embodiments.
The term in expression orientation such as herein " upper and lower, forward and backward " is based on the position relation of accompanying drawing, only is for convenience of description, it should be interpreted as the absolute qualification to protection domain.
Please refer to Fig. 1, Fig. 1 is the structure principle chart of diesel engine sea water pump provided by the present invention.
Mentality of designing of the present invention just is to set up bypass valve between the water-inlet cavity of diesel engine sea water pump and water chamber, and the water intake of bypass valve and water outlet are communicated with the water chamber and the water-inlet cavity of sea water pump respectively.
When the discharge pressure of sea water pump reaches or surpass the setting value of bypass valve, under the effect of hydraulic pressure, bypass valve is opened automatically, make unnecessary seawater turn back to the water-inlet cavity of sea water pump by bypass valve, realize the too high pressure release function of hydraulic pressure, the assurance sea water pump can both be supplied with enough cooling water flows and lift when the various rotating speeds of diesel engine move, can avoid simultaneously the consumption diesel engine power of doing nothing because of discharge pressure is too high, and circulation waterway related components fault, constantly keep normal water pressure, guarantee that diesel engine cools off normally, the sea water pump pressure of supply water is low when having solved the ubiquitous low speed of present ship machine, the too high problem of pressure of supply water when not going up water and high speed.
Please refer to Fig. 2, Fig. 3, Fig. 2 is the structural representation of a kind of embodiment of diesel engine sea water pump provided by the present invention; Fig. 3 is the local enlarged diagram at I position among Fig. 2.
In a kind of embodiment, the inner chamber of the pump housing 10 of sea water pump provided by the present invention has water-inlet cavity 10-1 and water chamber 10-2, on the dividing plate 10-3 between water-inlet cavity 10-1 and the water chamber 10-2, bypass valve 20 is installed, main shaft 30 is loaded on the pump housing 10 inside together with bearing support 40, water pump vane 50 is equipped with in its left end end, belt pulley 60 is equipped with in the right-hand member end, during work by belt pulley 60 impeller 50 high speed rotating, seawater is taken over the water-inlet cavity 10-1 of the 70 inspiration pump housings 10 from water inlet, seawater is thrown toward the edge of water pump cover under centrifugal action, produce certain pressure simultaneously, flow out from water chamber 10-2 then.
As shown in the figure, bypass valve 20 is mainly by valve body 20-1, component such as spool 20-2 and spring 20-3 are formed, valve body 20-1 is cylindrical, the inner chamber that connects before and after its inside has, spool 20-2 and spring 20-3 are located in the inner chamber of valve body 20-1, the necking down position of valve body 20-1 front end forms water intake 20-1-1, the sidewall of valve body 20-1 is provided with water outlet 20-1-2, water outlet 20-1-2 is the circular hole of two figure radially direct and mutual dislocation on valve body, spool 20-2 is specially steel ball, under the elastic force effect of spring 20-3, steel ball 20-2 is supported in the arc of water intake 20-1-1 along last, and the water intake 20-1-1 of valve body 20-1 is closed.
Certainly, the concrete form of spool 20-2 is not limited to steel ball, can also be the spool of other material or shape, depends on actual need and decides.
Valve body 20-1 goes up the other end relative with water intake and is provided with the nut 20-4 that is threaded, spring 20-3 is supported on the internal surface of nut 20-4 with respect to the other end of spool, the decrement of rotating screw cap 20-4 adjustable springs 20-3, and then realization is to the adjusting of bypass valve 20 cracking pressures, the nut 20-4 that turns clockwise can increase the setting pressure of bypass valve 20, and is opposite, be rotated counterclockwise nut 20-4, then can reduce the setting pressure of bypass valve 20.In addition, the water outlet 20-1-2 of bypass valve 20 not only can be arranged on the sidewall of valve body 20-1, can also be arranged on the nut 20-4.
Have the thread bush 10-3-1 that is communicated with water-inlet cavity 10-1 and water chamber 10-2 on the dividing plate 10-3 between water-inlet cavity 10-1 and the water chamber 10-2, the thread bush 10-3-1 and the pump housing 10 are integrally formed, water intake one end of valve body 20-1 has outside thread, and whole bypass valve 20 is gone into thread bush 10-3-1 from water-inlet cavity one sidespin and fixed.
For the installation that makes bypass valve 20 easier, bypass valve 20 can be arranged on over against the position of the pump housing 10 water intakes, so, just can directly bypass valve 20 be fixed on the dividing plate 10-3 along water intake, owing to be to be threaded, can also offer yi word pattern opening slot 20-1-3 in the rear end of valve body 20-1, so that rotate valve body 20-1 by instrument, make among its thread bush 10-3-1 that screws in dividing plate 10-3, during installation, earlier valve body 20-1 is fixed, and then put into spool 20-2 successively, spring 20-3, the nut 20-4 that screws on again at last gets final product, and it is simple in structure, rationally, and use reliable, maintaining is convenient.
In most of the cases, sea water pump can meet the requirements of flow and lift when guaranteeing the diesel engine low cruise, need use big water pump vane or little water pump pulley instead, add large speed ratio, the rotating speed of sea water pump is realized when improving the diesel engine low cruise, and diesel engine just causes the sea water pump discharge pressure too high when running up easily like this.This bypass valve 20 is realized opening by spool 20-2 pressure spring 20-3 by water pressure, when the discharge pressure of sea water pump reaches or surpass specified value, part seawater among the water chamber 10-2 is flowed through and is turned back to the water-inlet cavity 10-1 of sea water pump behind the water intake 20-1-1 that opens, body cavity, the water outlet 20-1-2, thereby reaches the pressure release purpose.
Certainly, above-mentioned bypass valve only is a kind of preferred version, and its concrete structure and mounting type are not limited thereto, and can make pointed adjustment according to actual conditions on this basis, thereby obtains the sea water pump that other can realize the object of the invention equally.For example bypass valve above can adopt relief valve to replace, perhaps bypass valve is arranged on pump housing outside, its water intake and water outlet are communicated with or the like with water chamber and water-inlet cavity by pipeline respectively, if can be when the discharge pressure of sea water pump surpasses setting value automatic conducting water-inlet cavity and water chamber.Because mode in the cards is more, for saving length, this paper just illustrates no longer one by one.
In addition, whether this paper is that pure mechanical structure does not limit yet to bypass valve, be that bypass valve can also adopt automatically controlled form, discharge pressure by Detecting element timely monitor sea water pump, when discharge pressure meets or exceeds setting value, Detecting element sends the electrical signal of opening bypass valve, and the control bypass valve was opened after controller received corresponding electrical signal.
Please in the lump with reference to figure 4, Fig. 4 is the local enlarged diagram at II position among Fig. 2.
The pump housing 10 is provided with safety check 80 in the ingress of its water-inlet cavity 10-1, flows backwards to prevent seawater.Safety check 80 comprises the first spool 80-1 and the second spool 80-2, the diameter of the first spool 80-1 is greater than the second spool 80-2, both are fixed together by screw and nut, flexible 80-3 of clamping in the middle of it, and obliquely being arranged in the step place of water-inlet cavity 10-1 inlet together with elastic component 80-3, the upper end of elastic component 80-3 is fixed on the pump housing 10.
When flowing into the pump housing 10, seawater the first spool 80-1, the second spool 80-2 upwards can be boosted together with elastic component 80-3, thereby safety check is opened, when seawater flows out the pump housing, the first spool 80-1, the second spool 80-2 fall together with elastic component 80-3, be supported on by the first spool 80-1 on the step of water-inlet cavity inlet, closure of check ring.
Except above-mentioned diesel engine sea water pump, the present invention also provides a kind of diesel engine, comprises the cooling system that is provided with sea water pump, and described sea water pump is specially diesel engine sea water pump mentioned above, and all the other structures see also prior art, and this paper repeats no more.
More than diesel engine provided by the present invention and sea water pump thereof are described in detail.Used specific case herein principle of the present invention and mode of execution are set forth, above embodiment's explanation just is used for helping to understand core concept of the present invention.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (10)
1. a diesel engine sea water pump comprises the pump housing with water-inlet cavity and water chamber, it is characterized in that, is provided with bypass valve between described water-inlet cavity and the water chamber; The water intake of described bypass valve is communicated with described water chamber, and the water outlet of described bypass valve is communicated with described water-inlet cavity.
2. diesel engine sea water pump according to claim 1, it is characterized in that, described bypass valve comprises valve body, spool and spring, described spool and spring are located in the inner chamber of described valve body, described water intake is positioned at an end of described valve body, described water outlet is positioned on the sidewall of described valve body, and described spool is closed the water intake of described valve body under the support of spring.
3. diesel engine sea water pump according to claim 2 is characterized in that, described bypass valve specifically is installed on the dividing plate between described water-inlet cavity and the water chamber.
4. diesel engine sea water pump according to claim 3 is characterized in that, has the thread bush that is communicated with described water-inlet cavity and water chamber on the described dividing plate, and water intake one end of described valve body has outside thread, is threaded with described thread bush.
5. diesel engine sea water pump according to claim 2 is characterized in that, the other end relative with described water intake on the described valve body is provided with the nut that is threaded, and described spring is supported on the described nut with respect to the other end of spool.
6. diesel engine sea water pump according to claim 2 is characterized in that, the other end relative with described water intake on the described valve body is provided with the yi word pattern opening slot.
7. diesel engine sea water pump according to claim 2 is characterized in that, described water outlet be a plurality of on described valve body radially-arranged circular hole.
8. according to each described diesel engine sea water pump of claim 1 to 7, it is characterized in that described spool is the steel ball of diameter greater than described water intake.
9. diesel engine sea water pump according to claim 8 is characterized in that, the water-inlet cavity ingress of described valve body is provided with safety check.
10. a diesel engine comprises the cooling system that is provided with sea water pump, it is characterized in that, described sea water pump is specially aforesaid right requirement 1 to 9 each described diesel engine sea water pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100340048A CN102182539A (en) | 2011-01-31 | 2011-01-31 | Diesel engine and seawater pump thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100340048A CN102182539A (en) | 2011-01-31 | 2011-01-31 | Diesel engine and seawater pump thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102182539A true CN102182539A (en) | 2011-09-14 |
Family
ID=44568816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100340048A Pending CN102182539A (en) | 2011-01-31 | 2011-01-31 | Diesel engine and seawater pump thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102182539A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110917543A (en) * | 2019-12-16 | 2020-03-27 | 福建侨龙应急装备股份有限公司 | Constant-pressure variable-flow remote water supply pump truck |
| CN113090376A (en) * | 2021-05-12 | 2021-07-09 | 河南柴油机重工有限责任公司 | Inhale sand for ship water-cooling diesel generating set cooling system |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5170753A (en) * | 1990-03-14 | 1992-12-15 | Kabushiki Kaisha Komatsu Seisakusho | Sea water cooling apparatus for marine diesel engine |
| JPH078530U (en) * | 1993-06-25 | 1995-02-07 | 株式会社豊田自動織機製作所 | Water cooling system for internal combustion engine |
| CN2296438Y (en) * | 1996-10-29 | 1998-11-04 | 张立群 | Multifunctional pressure self control valve |
| US6343573B1 (en) * | 2000-08-22 | 2002-02-05 | Nippon Thermostat Co., Ltd. | Thermostat device |
| CN2877880Y (en) * | 2006-03-03 | 2007-03-14 | 赵援宁 | Backwater structure for power sprayer |
| JP2007321637A (en) * | 2006-05-31 | 2007-12-13 | Toyota Motor Corp | Engine cooling device |
| CN101307680A (en) * | 2008-06-03 | 2008-11-19 | 潍坊盛德石油机械制造有限公司 | Screw drilling tool by-pass valve |
| CN201953459U (en) * | 2011-01-31 | 2011-08-31 | 潍柴动力股份有限公司 | Diesel engine and sea water pump thereof |
-
2011
- 2011-01-31 CN CN2011100340048A patent/CN102182539A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5170753A (en) * | 1990-03-14 | 1992-12-15 | Kabushiki Kaisha Komatsu Seisakusho | Sea water cooling apparatus for marine diesel engine |
| JPH078530U (en) * | 1993-06-25 | 1995-02-07 | 株式会社豊田自動織機製作所 | Water cooling system for internal combustion engine |
| CN2296438Y (en) * | 1996-10-29 | 1998-11-04 | 张立群 | Multifunctional pressure self control valve |
| US6343573B1 (en) * | 2000-08-22 | 2002-02-05 | Nippon Thermostat Co., Ltd. | Thermostat device |
| CN2877880Y (en) * | 2006-03-03 | 2007-03-14 | 赵援宁 | Backwater structure for power sprayer |
| JP2007321637A (en) * | 2006-05-31 | 2007-12-13 | Toyota Motor Corp | Engine cooling device |
| CN101307680A (en) * | 2008-06-03 | 2008-11-19 | 潍坊盛德石油机械制造有限公司 | Screw drilling tool by-pass valve |
| CN201953459U (en) * | 2011-01-31 | 2011-08-31 | 潍柴动力股份有限公司 | Diesel engine and sea water pump thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110917543A (en) * | 2019-12-16 | 2020-03-27 | 福建侨龙应急装备股份有限公司 | Constant-pressure variable-flow remote water supply pump truck |
| CN110917543B (en) * | 2019-12-16 | 2021-08-10 | 福建侨龙应急装备股份有限公司 | Constant-pressure variable-flow remote water supply pump truck |
| CN113090376A (en) * | 2021-05-12 | 2021-07-09 | 河南柴油机重工有限责任公司 | Inhale sand for ship water-cooling diesel generating set cooling system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201633913U (en) | Ship engine cooling system | |
| CN204532511U (en) | A kind of engine-cooling system, motor and automobile | |
| RU2014118495A (en) | TURBOCHARGE LUBRICATION SYSTEM WITH ANTI-SIPHON VALVE FOR AUTOROTATION | |
| CN105257385B (en) | A kind of cooling system improved structure for including double expansion tanks | |
| CN102182539A (en) | Diesel engine and seawater pump thereof | |
| CN105179060B (en) | A kind of pair of expansion tank dual cycle cooling system improved structure | |
| CN201953459U (en) | Diesel engine and sea water pump thereof | |
| RU183697U1 (en) | COOLING ENGINE COOLING SYSTEM | |
| CN115783214A (en) | Marine vehicle power room seawater cooling device | |
| CN105351068B (en) | A kind of double expansion tank cooling system improved structures of engine | |
| CN103032348B (en) | Axial flow type fluid supercharger with independent adjustable moving plate | |
| CN206319946U (en) | Cabin cooling device of generator set | |
| CN213974417U (en) | Ship self-flowing discharge port device, self-flowing cooling system and ship | |
| CN105736116B (en) | A kind of intelligent controllable water pump of anti-cavitation | |
| CN106907228B (en) | The cooling means and system of booster for engine, engine and vehicle | |
| CN211174652U (en) | Submerged pump capable of preventing idle rotation | |
| CN113734405A (en) | Circulating water-cooled electric outboard engine | |
| CN112249295A (en) | Ship gravity flow discharge port device, gravity flow cooling system and regulation control method | |
| CN202628364U (en) | Cooling tower water turbine capable of automatically adjusting pressure | |
| CN101920250B (en) | Industrial fixed high-pressure water supply device | |
| CN206487548U (en) | It is a kind of to improve the device of engine water pump cavitation | |
| CN211778074U (en) | High-speed motor direct-drive turbine vacuum unit | |
| CN210261233U (en) | Protection device for sea water desalination membrane | |
| CN215566660U (en) | Marine engine sea water pump | |
| JP5793438B2 (en) | Supercharging assist device for load fluctuation of internal combustion engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20110914 |