CN204357573U - A kind of general gasoline engines - Google Patents
A kind of general gasoline engines Download PDFInfo
- Publication number
- CN204357573U CN204357573U CN201420701605.9U CN201420701605U CN204357573U CN 204357573 U CN204357573 U CN 204357573U CN 201420701605 U CN201420701605 U CN 201420701605U CN 204357573 U CN204357573 U CN 204357573U
- Authority
- CN
- China
- Prior art keywords
- valve
- assembly
- cylinder
- gasoline engines
- general gasoline
- 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.)
- Withdrawn - After Issue
Links
Landscapes
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
The utility model embodiment discloses a kind of general gasoline engines, comprise casing, cylinder, cam pack, bent axle and valve assembly, described cylinder is arranged on described casing top, described cylinder head is arranged on the top of described cylinder, described cam pack and bent axle are arranged on described box house, and district's wheel assembly described in described crank-driven rotates, described valve assembly is arranged on described cylinder head, described valve assembly comprises intake valve assembly, exhaust valve assemblies, rocker arm assembly and push-rod assembly, described push-rod assembly matches with described cam pack, described rocker arm assembly drives described intake valve assembly or described exhaust valve assemblies to move to the direction near described cylinder under the effect of described push-rod assembly.General gasoline engines in the utility model is compared with general gasoline engines of the prior art, valve assembly is arranged on cylinder head, the quantity that the interior air flue of cylinder turns round reduces, and reduces the resistance of the gas of cylinder interior, thus improves the charging efficiency of general gasoline engines.
Description
Technical field
The utility model relates to technology of gasoline engine field, more particularly, relates to a kind of general gasoline engines.
Background technique
General gasoline engines is the internal-combustion engine using gasoline as fuel, and existing universal gasoline engine air valve all adopts side valve arrangement, and so-called side valve arrangement refers to, the valve of general gasoline engines is arranged on the side of cylinder.General gasoline engines as shown in Figure 1, this petrol engine comprises cylinder 1 and is arranged on the valve 2 of cylinder 1 both sides.Adopt the petrol engine of this kind of structure, because air flue turns round often, charging efficiency is low.
How to improve the charging efficiency of general gasoline engines, become the technical problem that those skilled in the art are urgently to be resolved hurrily.
Model utility content
In view of this, the purpose of this utility model is to provide a kind of general gasoline engines, with the real object improving the charging efficiency of general gasoline engines.
For achieving the above object, the utility model provides following technological scheme:
A kind of general gasoline engines, comprise casing, cylinder, cylinder head, cam pack, bent axle and valve assembly, described cylinder is arranged on described casing top, described cylinder head is arranged on the top of described cylinder, described cam pack and bent axle are arranged on described box house, and cam pack described in described crank-driven rotates, described valve assembly is arranged on described cylinder head, described valve assembly comprises intake valve assembly, exhaust valve assemblies, rocker arm assembly and push-rod assembly, described push-rod assembly matches with described cam pack, described rocker arm assembly drives described intake valve assembly or described exhaust valve assemblies to move to the direction near described cylinder under the effect of described push-rod assembly, the axis being parallel of the axis of the axis of the valve of described intake valve assembly and the valve of exhaust valve assemblies and the axis of described cylinder head and described general gasoline engines.
Preferably, in above-mentioned general gasoline engines, described rocker arm assembly comprises pitman arm shaft, rocking arm and pitman arm shaft seat pin, wherein, described pitman arm shaft one end is fixed on described cylinder, the other end of described pitman arm shaft is provided with described pitman arm shaft seat pin, and described rocking arm to be slidably enclosed within described pitman arm shaft and between described pitman arm shaft seat pin and described cylinder; Described rocking arm has the first projection matched with described intake valve assembly, and match with described exhaust valve assemblies second is protruding.
Preferably, in above-mentioned general gasoline engines, one end that described pitman arm shaft is provided with pitman arm shaft seat pin is provided with valve clearance adjusting nut.
Preferably, in above-mentioned general gasoline engines, described push-rod assembly comprises tappet, push rod and saddle, and wherein, one end of described tappet coordinates with described box body-sliding, and the other end contacts with described cam pack; Described push rod one end is hinged on one end that described tappet coordinates with described box body-sliding, and the other end is hinged on described rocking arm; Described saddle to be fixed on described pitman arm shaft and to be enclosed within described push rod.
Preferably, in above-mentioned general gasoline engines, one end that described push rod one end ball-joint coordinates with described box body-sliding at described tappet, the other end ball-joint is on described rocking arm.
Preferably, in above-mentioned general gasoline engines, described casing is provided with the pilot hole holding described push rod.
Preferably, in above-mentioned general gasoline engines, described intake valve assembly and described exhaust valve assemblies comprise valve top cap, cotter seat, valve spring and valve, wherein, described valve is through described cylinder, one end that described valve exposes described cylinder is fixed with cotter seat and valve top cap, and described valve spring is between described cotter seat and described cylinder.
Preferably, in above-mentioned general gasoline engines, between described valve and described cylinder, be also provided with guide sleeve.
Preferably, in above-mentioned general gasoline engines, the axis of described valve and the axis being parallel of described general gasoline engines.
Preferably, in above-mentioned general gasoline engines, the output the tip of the axis of described driven gear is also provided with bolt hole.
General gasoline engines in the utility model is compared with general gasoline engines of the prior art, valve assembly is arranged on cylinder head, the quantity that the interior air flue of cylinder turns round reduces, and reduces the resistance of the gas of cylinder interior, thus improves the charging efficiency of general gasoline engines; In addition, the axis being parallel of the axle axis of the axis of the valve of described intake valve assembly and the valve of exhaust valve assemblies and the axis of described cylinder head and described general gasoline engines, make the route of inlet and outlet passage shorter, bend is few, gas-flow resistance is simultaneously little, valve lift is large, so be conducive to air inlet and the exhaust of motor.
In addition, adopt the rocker arm assembly in the utility model embodiment not need to increase cam in addition just can drive rocker arm assembly to move up and down under the effect of the cam pack of petrol engine self, thus can realize unlatching or the closedown of intake valve assembly and exhaust valve assembly.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The main TV structure schematic diagram of a kind of general gasoline engines that Fig. 1 provides for prior art;
Fig. 2 is the forward sight structural representation of a kind of general gasoline engines provided by the utility model;
Fig. 3 is a kind of intake valve assembly provided by the utility model and exhaust valve assemblies schematic diagram;
Fig. 4 is the backsight structural representation of a kind of general gasoline engines provided by the utility model;
Fig. 5 is the structural representation of a kind of rocker arm assembly provided by the utility model.
Wherein:
1 be casing, 2 be cylinder, 3 be cam pack, 5 be bent axle, 6 for cylinder head;
11 be pilot hole, 61 be pilot hole, 41 be push-rod assembly, 42 be rocker arm assembly, 43 be valve assembly, 411 be tappet, 412 be push rod, 413 be saddle, 421 be rocking arm, 422 be arm axle seat pin, 423 be valve clearance adjusting nut, 424 for pitman arm shaft, 425 be first protruding, 431 be valve, 432 be cotter seat, 433 be valve top cap, 434 be valve spring, 435 be guide sleeve.
Embodiment
Core of the present utility model is exactly disclose a kind of general gasoline engines, to realize the object of the charging efficiency improving general gasoline engines.Below, with reference to accompanying drawing, embodiment is described.In addition, the embodiment shown in below does not play any restriction effect to the model utility content described in claim.In addition, the solution that the full content of the formation below represented by embodiment is not limited to as the model utility described in claim is necessary.
As shown in Figures 2 to 5, this general gasoline engines comprises casing 1, cylinder 2, cylinder head 6, cam pack 3, bent axle 5 and valve assembly, cylinder 2 is arranged on casing 1 top, cylinder head 6 is arranged on the top of cylinder 2, it is inner that cam pack 3 and bent axle 5 are arranged on casing 1, and bent axle 5 driving cam assembly rotates, valve assembly is arranged on the top of cylinder 2, valve assembly comprises intake valve assembly, exhaust valve assemblies, rocker arm assembly 42 and push-rod assembly 41, push-rod assembly 41 matches with cam pack 3, rocker arm assembly 42 drives intake valve assembly or exhaust valve assemblies to move to the direction near cylinder 2 under the effect of push-rod assembly 41, the axle of the axis of the valve of intake valve assembly and the valve of exhaust valve assemblies and the axis of cylinder head 6 and the axis being parallel of general gasoline engines.
General gasoline engines in the utility model is compared with general gasoline engines of the prior art, valve assembly 43 is arranged on the top of cylinder 2, the quantity that the interior air flue of cylinder 2 turns round reduces, and reduces the resistance of the gas of cylinder 2 inside, thus improves the charging efficiency of general gasoline engines; In addition, the axis of the axis of the valve of intake valve assembly and the valve of exhaust valve assemblies and the axis of cylinder head 6 and the axis being parallel of general gasoline engines, make the route of inlet and outlet passage shorter, bend is few, gas-flow resistance is simultaneously little, valve lift is large, so be conducive to air inlet and the exhaust of motor; And the axis of the axis of the valve of intake valve assembly and the valve of exhaust valve assemblies and the axis of cylinder head 6 and the axis being parallel of general gasoline engines, can reduce the thickness of cylinder head, thus reduce the volume of whole general gasoline engines.
A kind of concrete structure of rocker arm assembly 42 is disclosed in the utility model embodiment, specifically refer to Fig. 5; rocker arm assembly 42 comprises pitman arm shaft 424, Rocker arm 4 21 and pitman arm shaft seat pin 422; wherein; pitman arm shaft 424 one end is fixing on the cylinder 2; the other end of pitman arm shaft 424 is provided with pitman arm shaft seat pin 422, Rocker arm 4 21 to be slidably enclosed within pitman arm shaft 424 and between pitman arm shaft seat pin 422 and cylinder 2; Rocker arm 4 21 has the first projection 425 matched with intake valve assembly 43, and the second protruding (not shown) matched with exhaust valve assemblies 43.
In addition, conveniently regulate valve 431 gap, one end that pitman arm shaft 424 is provided with pitman arm shaft seat pin 422 is provided with valve clearance adjusting nut 423.The size in valve 431 gap in valve 431 and cylinder 2 just can be regulated by rotary valve gap adjustment nut 423.
Above-mentioned rocker arm assembly 42 drives Rocker arm 4 21 along pitman arm shaft 424 slide downward under push-rod assembly 41 drives, and when Rocker arm 4 21 moves downward, contacts with the valve 431 of valve assembly 43, finally realizes the unlatching of valve 431.Adopt the rocker arm assembly 42 in the utility model embodiment not need to increase cam in addition just can drive rocker arm assembly 42 to move up and down under the effect of the cam pack 3 of petrol engine self, thus can realize unlatching or the closedown of intake valve assembly 43 and exhaust valve assembly 43.
The utility model embodiment also discloses another rocker arm assembly 42, this rocker arm assembly 42 comprises Rocker arm 4 21, and wherein, the middle part of Rocker arm 4 21 is on the cylinder 2 hinged; one end of Rocker arm 4 21 can drive valve 431 to move downward, and the other end of Rocker arm 4 21 connects with push-rod assembly 41.Adopt each valve 431 of rocker arm assembly 42 in the present embodiment to need to be provided with a Rocker arm 4 21, need to connect different push-rod assemblies 41 for different Rocker arm 4s 21.
In order to coordinate the operation of above-mentioned rocker arm assembly 42, the utility model embodiment discloses a kind of push-rod assembly 41, and this push-rod assembly 41 comprises tappet 411, push rod 412 and saddle 413, wherein, one end and the casing 1 of tappet 411 are slidably matched, and the other end contacts with cam pack 3; Push rod 412 one end is hinged on one end that tappet 411 is slidably matched with casing 1, and the other end is hinged on Rocker arm 4 21; Saddle 413 to be fixed on pitman arm shaft 424 and to be enclosed within push rod 412.
Wherein, convenient in order to realize interlock, one end that push rod 412 one end ball-joint is slidably matched at tappet 411 and casing 1, the other end ball-joint is on Rocker arm 4 21.
In addition, in order to prevent the sphere of activities due to push rod 412 excessive, casing 1 is provided with the pilot hole 11 holding push rod 412; Corresponding cylinder 2 is also provided with pilot hole 61.
The utility model embodiment also discloses another push-rod assembly 41, wherein this push-rod assembly 41 comprises cam, cam realizes rotary motion under the effect of transmitting assemblies, this cam is arranged on the top of rocker arm assembly 42, in cam rotary course, when cam peak contacts with Rocker arm 4 21, Rocker arm 4 21 moves downward, and promotes valve 431 and move downward.When cam minimum point contacts with Rocker arm 4 21, valve 431 is closed.
The utility model embodiment discloses a kind of valve assembly 43, wherein, this valve assembly 43 comprises intake valve assembly and exhaust valve assemblies, intake valve assembly is identical with the structure of exhaust valve assemblies, just be arranged on the position difference to some extent of cylinder 2, when intake valve assembly is opened, air inlet in cylinder 2, when exhaust valve assemblies is opened, the waste gas of cylinder 2 discharges cylinder 2.Intake valve assembly and exhaust valve assemblies comprise valve top cap 433, cotter seat 432, valve spring 434 and valve 431, wherein, valve 431 is through cylinder 2, one end that valve 431 exposes cylinder 2 is fixed with cotter seat 432 and valve top cap 433, and valve spring 434 is between cotter seat 432 and cylinder 2.
Because valve 431 back and forth moves up and down in cylinder 2, therefore, easily wear and tear in the position that valve 431 contacts with cylinder 2, in order to prevent because cylinder 2 wearing and tearing cause Leakage Gas, also be provided with guide sleeve 435 between valve 431 and cylinder 2, when valve 431 moves up and down, rub with guide sleeve 435, after guide sleeve 435 weares and teares, directly replace guide sleeve 435, thus reduce the maintenance cost of petrol engine.
In addition, in order to reduce the resistance on Rocker arm 4 21 in a movement process, the axis of valve 431 and the axis being parallel of general gasoline engines.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (8)
1. a general gasoline engines, comprise casing, cylinder, cylinder head, cam pack, bent axle and valve assembly, described cylinder is arranged on described casing top, described cylinder head is arranged on the top of described cylinder, described cam pack and bent axle are arranged on described box house, and cam pack described in described crank-driven rotates, it is characterized in that, described valve assembly is arranged on described cylinder head, described valve assembly comprises intake valve assembly, exhaust valve assemblies, rocker arm assembly and push-rod assembly, described push-rod assembly matches with described cam pack, described rocker arm assembly drives described intake valve assembly or described exhaust valve assemblies to move to the direction near described cylinder under the effect of described push-rod assembly, the axis being parallel of the axis of the axis of the valve of described intake valve assembly and the valve of exhaust valve assemblies and the axis of described cylinder head and described general gasoline engines.
2. general gasoline engines as claimed in claim 1, it is characterized in that, described rocker arm assembly comprises pitman arm shaft, rocking arm and pitman arm shaft seat pin, wherein, described pitman arm shaft one end is fixed on described cylinder, the other end of described pitman arm shaft is provided with described pitman arm shaft seat pin, and described rocking arm to be slidably enclosed within described pitman arm shaft and between described pitman arm shaft seat pin and described cylinder; Described rocking arm has the first projection matched with described intake valve assembly, and match with described exhaust valve assemblies second is protruding.
3. general gasoline engines as claimed in claim 2, it is characterized in that, one end that described pitman arm shaft is provided with pitman arm shaft seat pin is provided with valve clearance adjusting nut.
4. general gasoline engines as claimed in claim 3, it is characterized in that, described push-rod assembly comprises tappet, push rod and saddle, and wherein, one end of described tappet coordinates with described box body-sliding, and the other end contacts with described cam pack; Described push rod one end is hinged on one end that described tappet coordinates with described box body-sliding, and the other end is hinged on described rocking arm; Described saddle to be fixed on described pitman arm shaft and to be enclosed within described push rod.
5. general gasoline engines as claimed in claim 4, it is characterized in that, one end that described push rod one end ball-joint coordinates with described box body-sliding at described tappet, the other end ball-joint is on described rocking arm.
6. general gasoline engines as claimed in claim 4, is characterized in that, described casing is provided with the pilot hole holding described push rod.
7. general gasoline engines as claimed in claim 6, it is characterized in that, described intake valve assembly and described exhaust valve assemblies comprise valve top cap, cotter seat, valve spring and valve, wherein, described valve is through described cylinder, one end that described valve exposes described cylinder is fixed with cotter seat and valve top cap, and described valve spring is between described cotter seat and described cylinder.
8. general gasoline engines as claimed in claim 7, is characterized in that, be also provided with guide sleeve between described valve and described cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420701605.9U CN204357573U (en) | 2014-11-18 | 2014-11-18 | A kind of general gasoline engines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420701605.9U CN204357573U (en) | 2014-11-18 | 2014-11-18 | A kind of general gasoline engines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204357573U true CN204357573U (en) | 2015-05-27 |
Family
ID=53259048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420701605.9U Withdrawn - After Issue CN204357573U (en) | 2014-11-18 | 2014-11-18 | A kind of general gasoline engines |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204357573U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405514A (en) * | 2014-11-18 | 2015-03-11 | 力帆实业(集团)股份有限公司 | General gasoline engine |
-
2014
- 2014-11-18 CN CN201420701605.9U patent/CN204357573U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405514A (en) * | 2014-11-18 | 2015-03-11 | 力帆实业(集团)股份有限公司 | General gasoline engine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105888840A (en) | Effort-saving engine | |
| CN204357573U (en) | A kind of general gasoline engines | |
| CN205243655U (en) | Dimethyl ether co -combustion system in advance preblends valve controlling means | |
| CN203531990U (en) | Valve timing mechanism of internal combustion engine | |
| CN104405514A (en) | General gasoline engine | |
| CN104832237B (en) | Valve rocker installing mechanism and its gasoline engine | |
| CN204312210U (en) | A kind of gas inlet control gear | |
| CN202467933U (en) | Valve timing mechanism for two-stroke aerodynamic V-shaped eight-cylinder engine | |
| CN103742263B (en) | Connecting rod piston formula combined burning room is without dead point Reciprocatory internal-combustion engine | |
| CN108825374A (en) | 346 swing arm, two stroke straight-shaft internal-combustion engine | |
| CN204283544U (en) | A kind of continuous variable valve stroke mechanism | |
| CN202560383U (en) | Cylinder cover air valve distribution structure of air power engine | |
| CN202280491U (en) | Motorcycle four-stroke engine top-mounted air distribution mechanism and camshaft assembly thereof | |
| CN204082246U (en) | The structure of a kind of piston-engined valve and piston | |
| CN101907032B (en) | Combustion system of engine | |
| CN205047320U (en) | Dual drive automatic choke system and engine thereof | |
| CN103306733A (en) | Gas distribution mechanism for V-shaped multi-cylinder aerodynamic engine | |
| CN202483632U (en) | Gas distributing mechanism for V-shaped multi-cylinder aerodynamic engines and engine | |
| CN202811806U (en) | Link mechanism of engine | |
| CN205089387U (en) | Valve timing mechanism of motorcycle engine | |
| CN105201645A (en) | Communication internal combustion engine | |
| CN204984518U (en) | Valve rocker installation mechanism and gasoline engine thereof | |
| CN203702280U (en) | Four-stroke engine decompressor | |
| CN102588151A (en) | Exhaust gas recirculation system with rotating component | |
| CN203308610U (en) | Power-driven EGR (exhaust gas recirculation) valve decarbonizing mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150527 Effective date of abandoning: 20170905 |
|
| AV01 | Patent right actively abandoned |