CN104564820A - Internal combustion engine cooling water pump with two helical surfaces - Google Patents
Internal combustion engine cooling water pump with two helical surfaces Download PDFInfo
- Publication number
- CN104564820A CN104564820A CN201310517120.4A CN201310517120A CN104564820A CN 104564820 A CN104564820 A CN 104564820A CN 201310517120 A CN201310517120 A CN 201310517120A CN 104564820 A CN104564820 A CN 104564820A
- Authority
- CN
- China
- Prior art keywords
- pump
- combustion engine
- pumping chamber
- cooling water
- suction chamber
- 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
Classifications
-
- 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
- F04D29/40—Casings; Connections of working fluid
- F04D29/406—Casings; Connections of working fluid especially adapted for liquid pumps
Abstract
The invention discloses an internal combustion engine cooling water pump with two helical surfaces. The internal combustion engine cooling water pump comprises a pump shell, wherein a shaft connection bearing is arranged on a bearing place of the pump shell, a driving belt pulley is arranged on a shaft neck at the left end of the shaft connection bearing, a water seal is arranged in the middle of the shaft connection bearing and at a water seal place of the pump shell, an impeller is arranged at the right end of the shaft connection bearing, and the impeller is arranged on a pumping chamber of the pump shell; a sealing gasket and an end cover are arranged at the right side of the pump shell, and a water outlet is formed in the end cover. The internal combustion engine cooling water pump is characterized in that a suction chamber and the pumping chamber of the pump shell are both helical surfaces; the peripheral line and the axis of the suction chamber are a concentric circle, and the axial height of the top of the suction chamber is gradually lowered along the clockwise direction of the arrow so as to form the helical surface; the peripheral line of the pumping chamber is an eccentric circle with an eccentric distance e, e is equal to 0.1 d, and the axial height of the top of the pumping chamber is gradually heightened along the clockwise direction of the arrow so as to form the helical surface.
Description
Technical field
The present invention relates to the design improvement of cooling water pump of combustion engine, is a kind of double helix face cooling water pump of combustion engine.
Background technique
The suction chamber of prior art cooling water pump of combustion engine, mainly adopt the suction chamber of loop configuration, pumping chamber mainly adopts radial helix structure, their Problems existing are: the inlet channel of suction chamber faces the pump spindle center of suction chamber: water inlet water impact pump shaft on the one hand, cause flow velocity into water because being obstructed by the impact of the backflow that recoils out, restriction on the other hand by annular water absorbing chamber structure can not ensure that the impeller intake in suction chamber has axisymmetric homogeneous velocity field, current enter annular water absorbing chamber with the form of sudden enlargement, at the suction accent place of impeller, current enter again between the blade of impeller with the form of sudden contraction, water loses very large in the process, and each sectional area of suction chamber inner lead is constant, cause current flow velocity in pump housing suction chamber uneven, and current collaborate from the suction chamber of two side direction suction chamber middle impellers of suction chamber pump shaft, eddy flow impingement phenomenon is there is in current in suction chamber, produce hydraulic loss, resistance increases, the useful horsepower loss of cooling waterpump is large, the inefficiency of cooling waterpump, the pumping chamber of existing cooling water pump of combustion engine is axially contour simultaneously, radial direction is helix, size is larger, it is often less that body installs time space, thus difficulty is brought to the optimal design of water pump.
Summary of the invention
It is bigger than normal that object of the present invention will solve existing cooling water pump of combustion engine pumping chamber radial dimension exactly, and complicated and existing for annular water absorbing chamber the current of design are not smooth, and hydraulic loss is large, ineffective problem.
Concrete scheme of the present invention is: a kind of double helix face cooling water pump of combustion engine, and it has pump case, pump case is respectively equipped with bearing position, water seal position, suction chamber, pumping chamber and mounting hole; At the bearing position place of pump case, shaft connecting bearing is installed, the left end axle journal of shaft connecting bearing is equipped with drive pulley, the middle part of shaft connecting bearing and the water seal position place of pump case are provided with water seal, and the right-hand member of shaft connecting bearing is provided with impeller, and described impeller is mounted in the pumping chamber place of pump case; Be equipped with gasket seal and end cap on the right side of pump case, end cap has water outlet; It is characterized in that: the suction chamber of pump case and the axial top planes of pumping chamber are helicoid.
Suction chamber outer peripheral lines of the present invention and axle center are concentric circle, suction chamber top axial height along arrow clockwise direction by height step-down gradually, helically face.
The Eccentric Circular of pumping chamber outer peripheral lines of the present invention to be a throw of eccentric be e, its e=0.1d, pumping chamber top axial height is uprised along arrow clockwise direction gradually by low, helically face.
accompanying drawing illustrates:
Fig. 1: the main sectional view of pump structure
Fig. 2: pump structure plan view
Fig. 3: pump shell structure plan view
Fig. 4: pump shell structure right elevation
Fig. 5: pump shell structure left view
In figure: 1-drive pulley, 2-pump case, 3-shaft connecting bearing, 4-water seal, 5-impeller, 6-gasket seal, 7-end cap, 8-suction chamber top, 9-pumping chamber top, 10-pumping chamber, 11-suction chamber, 12-suction chamber outer peripheral lines, 13-pumping chamber outer peripheral lines.
Embodiment:
The present invention has the basic structure of annular water absorbing chamber cooling waterpump, there is pump case 2, pump case 2 is built with shaft connecting bearing 3, one end of shaft connecting bearing 3 axle is provided with drive pulley 1, the other end is provided with water seal 4 and impeller 5, described pump case 2 is also designed with helicoid suction chamber and helicoid pumping chamber, and suction chamber outer peripheral lines and axle center are concentric circle and tangent with intake pipe bus, suction chamber top axial height along arrow clockwise direction by height step-down helically face gradually; The eccentric circle of pumping chamber outer peripheral lines to be a throw of eccentric be e, the center of circle is in water inlet direction angulation, wherein: α=135 degree, Under Asymmetrical e place, e=0.1d, wherein d is impeller diameter, and water outlet is connected with pumping chamber outer peripheral lines is smooth, and pumping chamber top axial height uprises helically face, water outlet top along arrow clockwise direction gradually by low.
Claims (3)
1. an axial double helix face cooling water pump of combustion engine, it has pump case, pump case is respectively equipped with bearing position, water seal position, suction chamber, pumping chamber and mounting hole; At the bearing position place of pump case, shaft connecting bearing is installed, the left end axle journal of shaft connecting bearing is equipped with drive pulley, the middle part of shaft connecting bearing and the water seal position place of pump case are provided with water seal, and the right-hand member of shaft connecting bearing is provided with impeller, and described impeller is mounted in the pumping chamber place of pump case; Be equipped with gasket seal and end cap on the right side of pump case, end cap has water outlet; It is characterized in that: the suction chamber of pump case and the top of pumping chamber are helicoid.
2. one according to right 1 axial double helix face cooling water pump of combustion engine, is characterized in that: described suction chamber outer peripheral lines and axle center are concentric circle, suction chamber top axial height in the direction of the arrow by height step-down gradually, in a helicoid.
3. the axial double helix face of the one according to right 1 cooling water pump of combustion engine, it is characterized in that: the Eccentric Circular of described pumping chamber outer peripheral lines to be a throw of eccentric be e, wherein e=0.1d, pumping chamber top axial height is uprised gradually by low in the direction of the arrow, in a helicoid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310517120.4A CN104564820A (en) | 2013-10-29 | 2013-10-29 | Internal combustion engine cooling water pump with two helical surfaces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310517120.4A CN104564820A (en) | 2013-10-29 | 2013-10-29 | Internal combustion engine cooling water pump with two helical surfaces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104564820A true CN104564820A (en) | 2015-04-29 |
Family
ID=53081668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310517120.4A Pending CN104564820A (en) | 2013-10-29 | 2013-10-29 | Internal combustion engine cooling water pump with two helical surfaces |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104564820A (en) |
-
2013
- 2013-10-29 CN CN201310517120.4A patent/CN104564820A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150429 |