CN111255732A - Cooling water pump of automobile engine - Google Patents
Cooling water pump of automobile engine Download PDFInfo
- Publication number
- CN111255732A CN111255732A CN201811466486.2A CN201811466486A CN111255732A CN 111255732 A CN111255732 A CN 111255732A CN 201811466486 A CN201811466486 A CN 201811466486A CN 111255732 A CN111255732 A CN 111255732A
- Authority
- CN
- China
- Prior art keywords
- bearing
- impeller
- pump case
- water
- spoke plate
- 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
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/2205—Conventional flow pattern
- F04D29/2222—Construction and assembly
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P5/00—Pumping cooling-air or liquid coolants
- F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/2261—Rotors specially for centrifugal pumps with special measures
- F04D29/2272—Rotors specially for centrifugal pumps with special measures for influencing flow or boundary layer
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/669—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for liquid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model provides an automobile engine cooling water pump, it has the pump case, is equipped with bearing position, water seal position, spiral runner, mounting hole, water leakage groove and seal groove on the pump case respectively, installs the axle at the bearing position department of pump case and links the bearing, installs the transmission ring flange on the left axle journal of axle linking bearing, and the water seal is installed to the right axle journal middle part of axle linking bearing and the water seal position department of pump case, installs the impeller on the right axle journal, the impeller be the fashioned semi-open type of precision casting, characterized by: the impeller is provided with a shaft shoulder and a spoke plate in the shape of an umbrella cover, a horn-shaped inner hole is arranged in the spoke plate, eight forward-bent circular arc-shaped blades are uniformly and symmetrically arranged on the spoke plate around a shaft line, a blade water outlet is at a right angle with the circumferential direction, a blade water inlet is at a right angle with a blade inclined plane, and two balancing holes with symmetrical axes are arranged on the spoke plate.
Description
Technical Field
The invention relates to an improved design of a 493 automobile engine cooling water pump, in particular to an automobile engine cooling water pump.
Background
The impeller of the existing 493 automobile engine cooling water pump is an impeller formed by punching a steel plate, and the impeller is limited by a punching process and has the following problems:
1. the punched impeller is formed by turning the blades, the radial plate is defective, the impeller is generally fully opened, the flow channel in the impeller is communicated with the volute chamber, and hydraulic losses such as water leakage, backflow, vortex and the like are easily caused.
2. The shaft shoulder of the punch forming impeller is generally provided with steps, is not smooth and is easy to generate hydraulic loss such as impact and the like.
3. The stamped impeller is low in size precision and rigidity, uneven fit clearance between the blade and the volute, unreliable connection between an inner hole and a bearing and the like are easily caused, and the problems that a water pump generates vibration, the performance is unstable, the connection reliability is poor and the like are caused.
Disclosure of Invention
The invention aims to solve the problems of low working efficiency and poor reliability of the existing 493 automobile engine cooling water pump and provides an automobile engine cooling water pump. The specific scheme of the invention is as follows: the utility model provides an automobile engine cooling water pump, it has the pump case, is equipped with bearing position, water seal position, spiral runner, mounting hole, water leakage groove and seal groove on the pump case respectively, installs the axle at the bearing position department of pump case and links the bearing, installs the transmission ring flange on the left axle journal of axle linking bearing, and the water seal is installed to the right axle journal middle part of axle linking bearing and the water seal position department of pump case, installs the impeller on the right axle journal, the impeller be the fashioned semi-open type of precision casting, characterized by: the impeller is provided with a shaft shoulder and a spoke plate in the shape of an umbrella cover, a horn-shaped inner hole is arranged in the spoke plate, eight forward-bent circular arc-shaped blades are uniformly and symmetrically arranged on the spoke plate around a shaft line, a blade water outlet is at a right angle with the circumferential direction, a blade water inlet is at a right angle with a blade inclined plane, and two balancing holes with symmetrical axes are arranged on the spoke plate.
The invention has the beneficial effects that:
compared with the existing 493 automobile engine cooling water pump, the precision casting impeller provided by the invention is provided with the smooth umbrella surface radial plate, the problems of water flow blockage, large backflow vibration, poor connection rigidity, low precision and the like caused by the defect of the punch forming impeller radial plate and the step shaft shoulder are solved, the pump lift and the working efficiency of the water pump are improved by the forward-bent circular arc-shaped blade, and the problems of low working efficiency, unstable performance, poor connection reliability and the like of the existing water pump are well solved.
Drawings
FIG. 1 is a front view of the structure of the present invention
FIG. 2 is a sectional view of a precision cast impeller
FIG. 3 is a left side view of a precision cast impeller
In the figure: 1-a transmission flange plate, 2-a pump shell, 3-a shaft connecting bearing, 4-a bearing position, 5-a water seal, 6-a balance hole, 7-a spoke, 8-a spiral flow passage, 9-a mounting hole, 10-a sealing groove, 11-a blade, 12-an impeller, 13-an inner hole, 14-a shaft shoulder, 15-a right shaft neck, 16-a water leakage groove, 17-a water seal position and 18-a left shaft neck.
Detailed Description
Example (b): (see figure 1 in detail) a car engine cooling water pump, it has pump case 2, is equipped with bearing position 4, water seal position 17, spiral runner 8, mounting hole 9, water leakage groove 16 and seal groove 10 on the pump case 2 respectively, install shaft coupling bearing 3 at bearing position 4 department of pump case 2, install transmission ring flange 1 on the left journal 18 of shaft coupling bearing 3, the water seal 5 is installed to the water seal position 17 department of the right journal 15 middle part dress of shaft coupling bearing 3 and pump case 2, install on the hole 13 of impeller 12 on the right journal 15, impeller 12 be the half-open type of precision casting shaping, characterized by: the impeller 12 is provided with a shaft shoulder 14 and a radial plate 7 in the shape of an umbrella cover, a horn-shaped inner hole 13 is arranged in the radial plate 7, eight forward-bent circular arc-shaped blades 11 are uniformly and symmetrically arranged on the radial plate 7 around the axis, the water outlets of the blades 11 form right angles with the circumferential direction, the water inlets of the blades 11 form right angles with the inclined surfaces of the blades, and two balancing holes 6 with symmetrical axes are arranged on the radial plate 7.
Claims (1)
1. The utility model provides an automobile engine cooling water pump, it has the pump case, is equipped with bearing position, water seal position, spiral runner, mounting hole, water leakage groove and seal groove on the pump case respectively, installs the axle at the bearing position department of pump case and links the bearing, installs the transmission ring flange on the left axle journal of axle linking bearing, and the water seal is installed to the right axle journal middle part of axle linking bearing and the water seal position department of pump case, installs the impeller on the right axle journal, the impeller be the fashioned semi-open type of precision casting, characterized by: the impeller is provided with a shaft shoulder and a spoke plate in the shape of an umbrella cover, a horn-shaped inner hole is arranged in the spoke plate, eight forward-bent circular arc-shaped blades are uniformly and symmetrically arranged on the spoke plate around a shaft line, a blade water outlet is at a right angle with the circumferential direction, a blade water inlet is at a right angle with a blade inclined plane, and two balancing holes with symmetrical axes are arranged on the spoke plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811466486.2A CN111255732A (en) | 2018-12-03 | 2018-12-03 | Cooling water pump of automobile engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811466486.2A CN111255732A (en) | 2018-12-03 | 2018-12-03 | Cooling water pump of automobile engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111255732A true CN111255732A (en) | 2020-06-09 |
Family
ID=70948783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811466486.2A Pending CN111255732A (en) | 2018-12-03 | 2018-12-03 | Cooling water pump of automobile engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111255732A (en) |
-
2018
- 2018-12-03 CN CN201811466486.2A patent/CN111255732A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200609 |