CN203335263U - Left crankcase cover of engine - Google Patents
Left crankcase cover of engine Download PDFInfo
- Publication number
- CN203335263U CN203335263U CN2013203767514U CN201320376751U CN203335263U CN 203335263 U CN203335263 U CN 203335263U CN 2013203767514 U CN2013203767514 U CN 2013203767514U CN 201320376751 U CN201320376751 U CN 201320376751U CN 203335263 U CN203335263 U CN 203335263U
- Authority
- CN
- China
- Prior art keywords
- cover body
- engine
- cover
- crankcase
- air inlet
- 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 - Lifetime
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Abstract
The utility model discloses a left crankcase cover of an engine. The left crankcase cover is of a cover body structure with the side wall in the circumferential direction. An air inlet (1) which is communicated with an inner cavity of a cover body is formed in the middle of the cover body, air inlet tube mounting bolt holes (2) are formed around the air inlet (1), a tubular air outlet channel (3) is formed in the top of the cover body, the lower end of the tubular air outlet channel (3) is communicated with the inner cavity of the cover body, and the upper end of the tubular air outlet channel stretches outside the side wall of the cover body. The side wall at the bottom of the cover body partially stretches downwards to form mounting bosses (4), and engine suspension bolt holes (4a) are formed in the mounting bosses (4). Mounting structures of an engine cooling air inlet and outlet duct and a cooling air inlet and outlet guide tube and a suspension structure of the engine are additionally arranged on the left crankcase cover, therefore, the heat radiating performance of a crankcase can be remarkably improved, rapid temperature rise in a crankcase body is avoided, and mounting reliability of the engine is improved.
Description
Technical field
The utility model relates to the left crankcase cover of motor, belongs to the mechanical structure technical field, is applicable to tricycle, four-wheel wagon and motorcycle and uses.
Background technique
Be provided with the moving elements such as connecting rod, driving gear, actuating motor in engine crankshaft box, each moving element can produce heat in movement process, and crankcase body is the space of a relative closure, if the heat distributed can not be discharged in time, can cause temperature in crankcase body sharply to raise, affect reliability and the durability of engine operation, increase oil consumption and the toxic emission of motor, cause the crankcase body distortion, the series of problems such as travelling comfort that impact is driven.
The model utility content
The utility model aims to provide a kind of engine left crankcase cover, heat in casing can be discharged in time, avoid temperature in crankcase body sharply to raise and affect reliability and the durability of engine operation, reduce oil consumption and the toxic emission of motor, avoid the crankcase body distortion, improve the travelling comfort of driving.
For this reason, the technological scheme that the utility model adopts is: a kind of engine left crankcase cover, for the circumferential cover body structure with sidewall, key is: described cover body middle part is provided with the intake opening (1) communicated with mask body intracavity, and is provided with air intake pipe construction bolt hole (2) around described intake opening (1); Described cover body top is provided with tubulose air-out passage (3), and the lower end of described tubulose air-out passage (3) communicates with mask body intracavity, and upper end extends to outside faceshield side wall; Sidewall part, described cover body bottom extends to form installation base (4) downwards, and is provided with engine suspension bolt hole (4a) on installation base (4).
Be preferably, totally three, described air intake pipe construction bolt hole (2), be circumference uniform distribution round intake opening (1); Totally two of described installation bases (4), be arranged on the sidewall of cover body bottom in parallel to each other.Air intake pipe construction bolt hole and the installation base of suitable quantity are set, can guarantee on the one hand the reliability of installing, be conducive on the other hand reduce manufacture cost, simplify and install.
During installation, air intake pipe is inserted in intake opening, and by bolt, the mounting flange and the air intake pipe construction bolt hole that arrange on air intake pipe are tightened together; Again air outlet tube is enclosed within to the outboard end of tubulose air-out passage, and installs fastening in conjunction with anchor ear.Intake opening is communicated with by mask body intracavity with air-out passage, during work, by engine impeller, cold wind is introduced from intake opening, and to crankcase body, cooling is discharged by air-out passage, thereby has realized the purpose to the crankcase body cooling.And set up engine suspension structure on left crankcase, to improve the reliability of motor installation.
The beneficial effects of the utility model: left crankcase covers the turnover air channel of having set up engine cooling wind, the mounting structure of cooling air air inlet/outlet guide duct, and the suspension structures of motor.Simple in structure, design ingenious, low cost of manufacture, can significantly improve the heat dispersion of crankcase, avoid temperature in crankcase body sharply to raise and affect reliability and the durability of engine operation, oil consumption and the toxic emission of motor have been reduced, avoid the crankcase body distortion, improved the travelling comfort of driving; Improved the reliability that motor is installed simultaneously.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
The A-A sectional view that Fig. 2 is Fig. 1.
The worm's eye view that Fig. 3 is Fig. 1.
The B that Fig. 4 is Fig. 1 is to partial view.
The C-C sectional view that Fig. 5 is Fig. 3.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
In conjunction with Fig. 1---the engine left crankcase cover shown in Fig. 3, be circumferentially the cover body structure with sidewall, be provided with a plurality of mounting holes in the periphery of cover body, by bolt and left crankcase, be installed together, be requisite component on motor.Left crankcase cover is through casting integrated moulding.
Be provided with at the cover body middle part intake opening 1 communicated with mask body intracavity, and be provided with air intake pipe construction bolt hole 2 around intake opening 1.Be preferably, totally three, air intake pipe construction bolt hole 2, be circumference uniform distribution round intake opening 1.The cover body top is provided with tubulose air-out passage 3, and the lower end of tubulose air-out passage 3 communicates with mask body intracavity, and upper end extends to outside faceshield side wall, and as shown in Figure 4, the cross section of tubulose air-out passage 3 is vesica piscis.Shown in Fig. 1, Fig. 3, Fig. 5, sidewall part, cover body bottom extends to form installation base 4 downwards, and is provided with engine suspension bolt hole 4a on installation base 4.Preferably, totally two of installation bases 4, be arranged on the sidewall of cover body bottom in parallel to each other.
During installation, air intake pipe is inserted in intake opening 1, and by bolt, the mounting flange and the air intake pipe construction bolt hole 2 that arrange on air intake pipe are tightened together; Again air outlet tube is enclosed within to the upper end of tubulose air-out passage 3, and installs fastening in conjunction with anchor ear.Intake opening 1 is communicated with by mask body intracavity with air-out passage 3, during work, by engine impeller, cold wind is introduced from intake opening 1, the crankcase body cooling is discharged by tubulose air-out passage 3, thereby realized the purpose to the crankcase body cooling.Simultaneously, set up engine suspension structure on left crankcase, the reliability of installing to improve motor.
Claims (2)
1. an engine left crankcase cover,, is characterized in that with the cover body structure of sidewall for circumferentially: be provided with the intake opening (1) communicated with mask body intracavity in the middle part of described cover body, and be provided with air intake pipe construction bolt hole (2) around described intake opening (1); Described cover body top is provided with tubulose air-out passage (3), and the lower end of described tubulose air-out passage (3) communicates with mask body intracavity, and upper end extends to outside faceshield side wall; Sidewall part, described cover body bottom extends to form installation base (4) downwards, and is provided with engine suspension bolt hole (4a) on installation base (4).
2. according to engine left crankcase cover claimed in claim 1, it is characterized in that: totally three, described air intake pipe construction bolt hole (2) is circumference uniform distribution round intake opening (1); Totally two of described installation bases (4), be arranged on the sidewall of cover body bottom in parallel to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203767514U CN203335263U (en) | 2013-06-28 | 2013-06-28 | Left crankcase cover of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203767514U CN203335263U (en) | 2013-06-28 | 2013-06-28 | Left crankcase cover of engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203335263U true CN203335263U (en) | 2013-12-11 |
Family
ID=49703940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203767514U Expired - Lifetime CN203335263U (en) | 2013-06-28 | 2013-06-28 | Left crankcase cover of engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203335263U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104141538A (en) * | 2014-07-25 | 2014-11-12 | 朱德仲 | Motorcycle engine end cover |
| CN106168184A (en) * | 2016-08-27 | 2016-11-30 | 泰州君灵奔腾动力机械有限公司 | A kind of crankcase cover |
-
2013
- 2013-06-28 CN CN2013203767514U patent/CN203335263U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104141538A (en) * | 2014-07-25 | 2014-11-12 | 朱德仲 | Motorcycle engine end cover |
| CN106168184A (en) * | 2016-08-27 | 2016-11-30 | 泰州君灵奔腾动力机械有限公司 | A kind of crankcase cover |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131211 |