CN203810004U - Motorboat oil pump - Google Patents
Motorboat oil pump Download PDFInfo
- Publication number
- CN203810004U CN203810004U CN201420216738.7U CN201420216738U CN203810004U CN 203810004 U CN203810004 U CN 203810004U CN 201420216738 U CN201420216738 U CN 201420216738U CN 203810004 U CN203810004 U CN 203810004U
- Authority
- CN
- China
- Prior art keywords
- oil
- pump housing
- inlet hole
- oil circuit
- pump
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a motorboat oil pump. The motorboat oil pump comprises a transmission shaft, a pump body A and a pump body B, wherein the pump body A and the pump body B are arranged on the transmission shaft in a series mode. An outer rotor A and an inner rotor A connected with the outer rotor A in a meshed mode are arranged in the pump body A, an outer rotor B and an inner rotor B connected with the outer rotor B in a meshed mode are arranged in the pump body B, and the inner rotor A and the inner rotor B are respectively and fixedly arranged on the transmission shaft. The pump body B is provided with an oil inlet hole A, an oil inlet hole B, an oil outlet hole A and an oil outlet hole B. An oil way B communicated with the oil inlet hole B and the oil outlet hole B are arranged in the pump body B, an oil way A communicated with the oil inlet hole A and the oil outlet hole A and an oil way C communicated with the oil inlet hole A and the oil way B are arranged in the pump body A, and a one-way pressure release valve is installed between the oil way B and the oil way C. The motorboat oil pump is simple and reasonable in structure, small in size, simple in oil way design and convenient to install, the cooling and lubricating effects on an engine are good, and the stability of the oil amount of an oil tank of the engine can be guaranteed.
Description
Technical field
The utility model relates to oil pump technical field, particularly a kind of motor boat oil pump.
Background technique
Along with social development, motor boat is more and more subject to the favor in market.Be used for the oil pump of motor boat as the indispensable important composition structure of motorboat engine lubrication system, by masses, known, its effect is that machine oil is brought up to after certain pressure, is sent to forcibly on the moving surface of each part of motor, plays effect lubricated and cooling.According to the difference of engine displacement and model, the also difference to some extent of different motor boat machine oil pump structures, existing motor boat mechanism pump is unreasonable because structure arranges, conventionally there is following defect: the first, structure setting is comparatively complicated, needs a plurality of pump housing cooperative cooperatings, make the volume of oil pump larger, oil circuit design is comparatively complicated, takes up room larger during installation, causes installing inconvenience; The second, poor to the Cooling and Lubricator effect of each part of motor, cannot meet user's user demand; The 3rd, the machine oil in oil circuit cannot automatic back flow to engine oil tank, cause the oil mass of engine oil tank unstable.
Model utility content
The purpose of this utility model is for the defect of prior art and deficiency, provide a kind of simple and reasonable, small volume, oil circuit simplicity of design, easy for installation, to engine cooling and lubrication effect better, can guarantee the stable motor boat oil pump of oil mass of engine oil tank.
For achieving the above object, the utility model is by the following technical solutions:
Motor boat oil pump described in the utility model, comprise transmission shaft, string is located at pump housing A and the pump housing B on described transmission shaft, in described pump housing A, be provided with the external rotor A and the internal rotor A that are connected with a joggle, in pump housing B, be provided with the external rotor B and the internal rotor B that are connected with a joggle, described internal rotor A and internal rotor B are fixedly installed on respectively on transmission shaft, described pump housing B is provided with oil inlet hole A, oil inlet hole B, oil outlet A and oil outlet B, in pump housing B, be provided with the oil circuit B that is communicated with oil inlet hole B and oil outlet B, in described pump housing A, be provided with the oil circuit A that is communicated with oil inlet hole A and oil outlet A, and the oil circuit C that is communicated with oil inlet hole A and oil circuit B, between described oil circuit B and oil circuit C, install and be provided with unidirectional Decompression valves.
Further, described unidirectional Decompression valves comprise valve body, activity be located at the valve rod in valve body and be connected at valve rod and valve body between pressure release spring, described valve rod is provided with the oilhole coordinating with valve interior wall, when pressure release spring-compressed, oilhole and valve interior wall depart from, and described oil circuit B is communicated with oil circuit C by oilhole; When pressure release spring remains former when long, oilhole and valve interior wall close contact, oil circuit B and oil circuit C disconnect.
Further, the end of described pump housing A is connected with pump cover, is positioned at oil inlet hole B place and is provided with feed cover on described pump housing B.
Further, described internal rotor A and internal rotor B are all fixedly installed on described transmission shaft by needle roller.
The beneficial effects of the utility model are: the utility model is by arranging transmission shaft, going here and there and be located at pump housing A and the pump housing B on transmission shaft, and pump housing quantity arranges less, makes small volume, easy for installation, and installation footprint is less; Described pump housing B is provided with oil inlet hole A, oil inlet hole B, oil outlet A and oil outlet B, in pump housing B, be provided with the oil circuit B that is communicated with oil inlet hole B and oil outlet B, in described pump housing A, be provided with and be communicated with the oil circuit A of oil inlet hole A and oil outlet A and the oil circuit C that is communicated with oil inlet hole A and oil circuit B, oil circuit simplicity of design is reasonable, be convenient to machine oil in the utility model internal flow, Cooling and Lubricator effect is better; Between described oil circuit B and oil circuit C, install and be provided with unidirectional Decompression valves, when in the utility model, oil pressure is larger, unidirectional Decompression valves is opened, and the machine oil part in oil circuit B is back to oil inlet hole A through oil circuit C, in oil inlet hole A flow direction engine fuel tank, effectively guaranteed that the oil mass in fuel tank is stable.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model;
Fig. 2 is the structural representation of pump housing B of the present utility model;
Fig. 3 is unidirectional pressure-relief valve structure schematic diagram of the present utility model.
In figure:
1, pump housing A; 2, pump housing B; 3, transmission shaft; 11, external rotor A; 12, internal rotor A; 21, external rotor B; 22, internal rotor B; 23, oil inlet hole A; 24, oil inlet hole B; 25, oil outlet A; 26, oil outlet B; 27, oil circuit B; 41, valve body; 42, valve rod; 43, pressure release spring; 44, oilhole; 5, pump cover; 28, feed cover; 6, needle roller.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
Motor boat oil pump as shown in Figure 1 to Figure 3, comprises transmission shaft 3, goes here and there and be located at pump housing A1 and the pump housing B2 on described transmission shaft, and pump housing quantity arranges less, makes small volume, easy for installation, and installation footprint is less.In described pump housing A1, be provided with the external rotor A11 and the internal rotor A12 that are connected with a joggle, in pump housing B2, be provided with the external rotor B21 and the internal rotor B22 that are connected with a joggle, described internal rotor A12 and internal rotor B22 are fixedly installed on respectively on transmission shaft 3, described pump housing B2 is provided with oil inlet hole A23, oil inlet hole B24, oil outlet A25 and oil outlet B26, in pump housing B2, be provided with the oil circuit B27 that is communicated with oil inlet hole B24 and oil outlet B26, in described pump housing A1, be provided with the oil circuit A that is communicated with oil inlet hole A23 and oil outlet A25, and the oil circuit C that is communicated with oil inlet hole A23 and oil circuit B27, oil circuit simplicity of design is reasonable, be convenient to machine oil in the utility model internal flow.Between described oil circuit B27 and oil circuit C, install and be provided with unidirectional Decompression valves.
Described unidirectional Decompression valves comprise valve body 41, activity be located at the valve rod 42 in valve body 41 and be connected at valve rod 42 and valve body 41 between pressure release spring 43, described valve rod 42 is provided with the oilhole 44 coordinating with valve body 41 inwalls, when 43 compression of pressure release spring, oilhole 44 departs from valve body 41 inwalls, and described oil circuit B27 is communicated with oil circuit C by oilhole 44; When pressure release spring 43 remains former when long, oilhole 44 and valve body 41 inwall close contacts, oil circuit B27 and oil circuit C disconnection.
Working principle of the present utility model is: under engine work state, transmission shaft 3 coordinates with external rotor A11 by internal rotor A12, internal rotor B22 coordinates with external rotor B21, drive pump housing A1 and pump housing B2 work, machine oil in fuel tank divides two-way to flow in the utility model, wherein a route pump housing B2 sucks from oil inlet hole A23, under the effect of pump housing A1, by oil circuit A, flow to oil outlet A25, cooling and lubricating for engine part, another route pump housing B2 sucks from oil inlet hole B24, by oil circuit B27, flow to oil outlet B26, cooling and lubricating for engine part, when starting rotating speed to strengthen, the rotating speed of transmission shaft 1 increases thereupon, oil pressure in oil circuit B27 increases, machine oil promotes valve rod 42 under pressure, pressure release spring 43 pressurizeds, and oilhole 44 departs from the inwall of valve body 41, oil circuit B27 and oil circuit C conducting, part machine oil is back to oil inlet hole A23 through oil circuit C, and is finally back in engine oil tank, has guaranteed that the oil mass in fuel tank is stable.
The end of described pump housing A1 is connected with pump cover 5, is positioned at oil inlet hole B24 place and is provided with feed cover 28 on described pump housing B2, by pump cover 5 and feed cover 28 are set, has prevented that the impurity such as dust from entering inside of the present utility model, has avoided machine oil to be subject to the pollution of impurity.Described internal rotor A12 and internal rotor B22 are all fixedly installed on described transmission shaft 3 by needle roller 6, install easy to connect.
The above is only better embodiment of the present utility model, and the equivalence of doing according to structure, feature and principle described in the utility model patent claim therefore all changes or modifies, and is included in the utility model patent claim.
Claims (4)
1. a motor boat oil pump, it is characterized in that: comprise transmission shaft (3), string is located at pump housing A (1) and the pump housing B (2) on described transmission shaft, in described pump housing A (1), be provided with the external rotor A (11) and the internal rotor A (12) that are connected with a joggle, in pump housing B (2), be provided with the external rotor B (21) and the internal rotor B (22) that are connected with a joggle, described internal rotor A (12) and internal rotor B (22) are fixedly installed on respectively on transmission shaft (3), described pump housing B (2) is provided with oil inlet hole A (23), oil inlet hole B (24), oil outlet A (25) and oil outlet B (26), in pump housing B (2), be provided with the oil circuit B (27) that is communicated with oil inlet hole B (24) and oil outlet B (26), in described pump housing A (1), be provided with the oil circuit A that is communicated with oil inlet hole A (23) and oil outlet A (25), and the oil circuit C that is communicated with oil inlet hole A (23) and oil circuit B (27), between described oil circuit B (27) and oil circuit C, install and be provided with unidirectional Decompression valves.
2. motor boat oil pump according to claim 1, it is characterized in that: described unidirectional Decompression valves comprise valve body (41), activity be located at the valve rod (42) in valve body (41) and be connected at valve rod (42) and valve body (41) between pressure release spring (43), described valve rod (42) is provided with the oilhole (44) coordinating with valve body (41) inwall, when pressure release spring (43) compresses, oilhole (44) departs from valve body (41) inwall, and described oil circuit B (27) is communicated with oil circuit C by oilhole (44); When pressure release spring (43) remains former when long, oilhole (44) and valve body (41) inwall close contact, oil circuit B (27) and oil circuit C disconnect.
3. motor boat oil pump according to claim 1, is characterized in that: the end of described pump housing A (1) is connected with pump cover (5), is positioned at oil inlet hole B (24) and locates to be provided with feed cover (28) on described pump housing B (2).
4. motor boat oil pump according to claim 1, is characterized in that: described internal rotor A (12) and internal rotor B (22) are all fixedly installed on described transmission shaft (3) by needle roller (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420216738.7U CN203810004U (en) | 2014-04-29 | 2014-04-29 | Motorboat oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420216738.7U CN203810004U (en) | 2014-04-29 | 2014-04-29 | Motorboat oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203810004U true CN203810004U (en) | 2014-09-03 |
Family
ID=51448752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420216738.7U Expired - Fee Related CN203810004U (en) | 2014-04-29 | 2014-04-29 | Motorboat oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203810004U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105889733A (en) * | 2016-04-11 | 2016-08-24 | 湖北三江船艇科技有限公司 | Parallel type rotor oil pump of ship gasoline engine |
-
2014
- 2014-04-29 CN CN201420216738.7U patent/CN203810004U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105889733A (en) * | 2016-04-11 | 2016-08-24 | 湖北三江船艇科技有限公司 | Parallel type rotor oil pump of ship gasoline engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140903 Termination date: 20160429 |