CN202483663U - Petrol engine - Google Patents
Petrol engine Download PDFInfo
- Publication number
- CN202483663U CN202483663U CN2012200968610U CN201220096861U CN202483663U CN 202483663 U CN202483663 U CN 202483663U CN 2012200968610 U CN2012200968610 U CN 2012200968610U CN 201220096861 U CN201220096861 U CN 201220096861U CN 202483663 U CN202483663 U CN 202483663U
- Authority
- CN
- China
- Prior art keywords
- inlet
- exhaust valve
- valve
- rocker arm
- outlet door
- 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
Links
Images
Landscapes
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
The utility model discloses a petrol engine which comprises a crankcase, an air cylinder fixed on the crankcase, an air cylinder head arranged on an upper portion of the air cylinder, an air inlet valve and an air exhaust valve disposed on an air inlet and an air outlet of the air cylinder head and an air inlet valve and air exhaust valve rocker arm mechanism connected with a crank mechanism of the crankcase and used to drive the air inlet valve and the air exhaust valve to move. The air inlet and the air outlet are respectively provided with an air inlet valve seat ring and an air exhaust valve seat ring, and the air inlet valve and the air exhaust valve are arranged in a V shape. The rocker arm mechanism comprises an inlet valve rocker arm and an air exhaust valve rocker arm, an inlet valve rocker arm shaft and an air exhaust valve rocker arm shaft, and an inlet valve pushrod and an air exhaust valve pushrod. The an inlet valve pushrod and the air exhaust valve pushrod are respectively connected with the crank mechanism, the air inlet valve rocker arm shaft and the air exhaust valve rocker arm shaft are respectively and transversely disposed on the air cylinder head, the air inlet valve rocker arm and the air exhaust valve rocker arm are respectively disposed on the corresponding rocker arm shafts in a sleeved mode through axle holes disposed on the air inlet valve rocker arm and the air exhaust valve rocker arm, and respectively actuate on the corresponding valves and pushrods at two sides in a swing mode with rocker arm shafts as swing axes. The petrol engine is compact in structure, large in power per liter, good in sensitivity and high in working reliability and valve rocker arm mechanisms are not prone to damage.
Description
Technical field
the utility model relates to a kind of petrol engine.
Background technique
Inlet and outlet Men Jun in
existing petrol engine on the cylinder head is parallel and is arranged in juxtaposition; Increase the inlet and outlet amount if want further to strengthen inlet and outlet gate seat circle size; Just must enlarge the size of cylinder head on the whole; This has increased the material input that petrol engine is made undoubtedly, has strengthened cost, and has made the petrol engine overall structure not compact.Therefore existing petrol engine power per liter can't further obtain breaking through.
in addition; Existing petrol engine; What conventional Valve Rocker Organization adopted on its cylinder head is swing rocking arm; This rocking arm is set on the installation double-screw bolt by the axis hole gap at center, can swing in installing on the double-screw bolt, double-screw bolt is installed then is fixed in the rocking arm installation screw on the cylinder head.The rocking arm top is fixed with valve lash adjusting screw through locking nut, and the bottom of this valve lash adjusting screw is the circular arc head, with the concave arc surface cooperation on rocking arm top, is convenient to the rocking arm swing.During engine operation, the push rod pushing tow of an end of rocking arm through driving by engine crank mechanism, the rocking arm the other end then compresses the valve top, makes valve closure.And when push rod was fallen with crank mechanism, the end that rocking arm compresses the valve top unclamped, and made valve under the effect of valve reseting pressuring spring, upspring air-breathing or venting.
however shortcoming that existing rocker arm body exists be: owing to have break-in repeatedly between rocking arm and installation double-screw bolt and the valve lash adjusting screw; Time one is of a specified duration, causes wearing and tearing easily, causes matching reduction between the component; Mechanism's sensitivity variation; The also corresponding increase of activity error often causes the mechanism can't reliably working when serious, motor is damaged.Usually need regulate valve lash adjusting screw this, comparatively loaded down with trivial details, the valve lash adjusting screw that perhaps simply more renews has increased cost of equipment maintenance undoubtedly.
Summary of the invention
the utility model purpose is: under the prerequisite of guaranteeing the petrol engine compact overall structure, provide a kind of not only power per liter big, and Valve Rocker Organization is not fragile, sensitivity is good, the petrol engine that functional reliability is high.
The technological scheme of
the utility model is: a kind of petrol engine; Comprise crankcase, be fixed on cylinder on the crankcase, be positioned at cylinder top cylinder head, be located at the inlet and outlet door on the cylinder head inlet and outlet mouth, and the crank mechanism that connects in the crankcase is used to drive the movable rocker arm body of inlet and outlet door; Be fixed with inlet and outlet gate seat circle on the said inlet and outlet mouth respectively; It is characterized in that the V-shaped layout of said intake valve and exhaust valve; And said rocker arm body is a symplex structure, comprises inlet and outlet door rocking arm, inlet and outlet door pitman arm shaft and inlet and outlet door push rod; Wherein said intake valve push rod links to each other with crank mechanism, and said inlet valve rocker axle laterally is located on the cylinder head, and said inlet valve rocker is sheathed with on the inlet valve rocker axle by the axis hole of offering on it, and with the inlet valve rocker axle for waving the axle center; Have on the said inlet valve rocker and be positioned at the actuation arm of waving the both sides, axle center, relative with the intake valve top respectively with intake valve push rod top; And said exhaust valve putter links to each other with crank mechanism, and said exhaust valve rocker arm axle also laterally is located on the cylinder head, and said exhaust valve rocker arm is sheathed with on the exhaust valve rocker arm axle by the axis hole of offering on it, and with the exhaust valve rocker arm axle for waving the axle center; Have on the said exhaust valve rocker arm and be positioned at the actuation arm of waving the both sides, axle center, relative with the exhaust valve top respectively with the exhaust valve putter top.
are further, and rocker arm body described in the utility model also comprises inlet and outlet door gap adjustment screws and inlet and outlet door lock jack panel; Actuation arm relative with the intake valve push rod on the said inlet valve rocker is provided with screw hole; The intake valve gap adjustment screws is passed this screw hole and is fixed on this actuation arm by the intake valve locking nut, and said intake valve gap adjustment screws contacts with intake valve push rod top; And also be provided with screw hole on the actuation arm relative on the said exhaust valve rocker arm with exhaust valve putter; The emission valve clearance adjusting screw is passed this screw hole and is fixed on this actuation arm by the exhaust valve locking nut, and said emission valve clearance adjusting screw contacts with the exhaust valve putter top.
further; The gap adjustment screws of intake valve described in the utility model is inverted and is passed the screw hole on the inlet valve rocker; The screw head of this intake valve gap adjustment screws is provided with arc groove, and intake valve push rod top forms the ball heads with the arc groove coupling; Same, said emission valve clearance adjusting screw is inverted and is passed the screw hole on the exhaust valve rocker arm, and the screw head of this emission valve clearance adjusting screw is provided with arc groove, and the exhaust valve putter top forms the ball heads with the arc groove coupling.
are further, and the axle of inlet valve rocker described in the utility model is fixed on the cylinder head through inlet valve rocker axle stop screw, and the exhaust valve rocker arm axle is fixed on the cylinder head through exhaust valve rocker arm axle stop screw.
are the same with routine techniques, and cylinder head described in the utility model is provided with the inlet and outlet door conduit that supplies inlet and outlet door telescopic movable respectively; Be respectively equipped with inlet and outlet door oil sealing in the said inlet and outlet door conduit.
are the same with routine techniques; The top of the door of inlet and outlet described in the utility model is fixed with inlet and outlet door spring seat respectively; Be provided with the intake valve reseting pressuring spring between said inlet-valve spring seat and the cylinder head, and be provided with the exhaust valve reseting pressuring spring between exhaust valve spring seat and the cylinder head.
are the same with routine techniques, and the header of inlet and outlet described in the utility model is fixed with inlet and outlet door helmet respectively.
The utility model has the advantages that:
are this petrol engine that provides of the utility model 1.; Because the inlet and outlet door adopts the V-type arrangement; So can guarantee under the prerequisite of intensifying cylinder area of bed not, to be beneficial to further increasing inlet and outlet gate seat circle size; Thereby can strengthen air inflow and air displacement 10-17%, like this can improve petrolic power per liter 15%-20%.
Routine techniques is compared in
, and the utility model can be guaranteed its compact structure when improving petrol engine power, thereby saves the material of petrol engine cylinder head greatly, reduces manufacture cost.
are this petrol engine that provides of the utility model 2.; Its inlet and outlet door rocking arm all carries out activity with separately pitman arm shaft for waving the axle center, compares existing technology, and is not easy to wear; Sensitivity is better; Need not often inlet and outlet door rocking arm to be adjusted or changed,, and greatly reduce cost of equipment maintenance so functional reliability is higher.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further described:
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the independent structural representation of rocker arm body among Fig. 1;
Fig. 3 is the independent structure plan view of inlet valve rocker among Fig. 2;
Fig. 4 is the assembly structure schematic representation of rocker arm body on cylinder head among Fig. 1.
wherein: 1, crankcase; 2, cylinder head; 3, intake valve; 4, exhaust valve; 5, crank mechanism; 6, inlet valve seat ring; 7, exhaust valve seat insert; 8, inlet valve rocker; 9, exhaust valve rocker arm; 10, inlet valve rocker axle; 11, exhaust valve rocker arm axle; 12, intake valve push rod; 13, exhaust valve putter; 14, intake valve gap adjustment screws; 15, emission valve clearance adjusting screw; 16, intake valve locking nut; 17, exhaust valve locking nut; 18, inlet valve rocker axle stop screw; 19, exhaust valve rocker arm axle stop screw; 20, intake valve conduit; 21, exhaust valve guide; 22, intake valve oil sealing; 23, exhaust valve oil sealing; 24, inlet-valve spring seat; 25, exhaust valve spring seat; 26, intake valve reseting pressuring spring; 27, exhaust valve reseting pressuring spring; 28, intake valve helmet; 29, exhaust valve helmet.
Embodiment
embodiment: combination Fig. 1-shown in Figure 4; The utility model provides a kind of petrol engine; It has crankcase 1, be fixed on cylinder on the crankcase 1 (among the figure mark), be positioned at cylinder top cylinder head 2, be located at the inlet and outlet door 3,4 on the cylinder head 2 inlet and outlet mouths, and connect crank mechanism 5 in the crankcase 1 and be used to drive the movable rocker arm body of inlet and outlet door 3,4.The same with routine techniques, be fixed with inlet and outlet gate seat circle 6,7 on the said inlet and outlet mouth respectively.Said cylinder head 2 is provided with the inlet and outlet door conduit 20,21 that supplies inlet and outlet door 3,4 telescopic movables respectively; Be respectively equipped with inlet and outlet door oil sealing 22,23 in the said inlet and outlet door conduit 20,21.The top of said inlet and outlet door 3,4 is fixed with inlet and outlet door spring seat 24,25 respectively; Be provided with intake valve reseting pressuring spring 26 between said inlet-valve spring seat 24 and the cylinder head 2; And being provided with exhaust valve reseting pressuring spring 27 between exhaust valve spring seat 25 and the cylinder head 2, said inlet and outlet door 3,4 tops are fixed with inlet and outlet door helmet 28,29 respectively.The characteristics of the utility model are said intake valve 3 and the V-shaped layout of exhaust valve 4 designs are improved the structure of said rocker arm body simultaneously.
specifically combine shown in Fig. 2-4; Said rocker arm body is a symplex structure; By inlet and outlet door rocking arm 8,9; Inlet and outlet door pitman arm shaft 10,11, inlet and outlet door push rod 12,13, inlet and outlet door gap adjustment screws 14,15, inlet and outlet door lock jack panel 16,17 and inlet and outlet door pitman arm shaft stop screw 18,19 are formed jointly.
said intake valve push rod 12 links to each other with crank mechanism 5; Said inlet valve rocker axle 10 passes through inlet valve rocker axle stop screw 18 crosswise fixed to cylinder head 2; Said inlet valve rocker 8 is sheathed with on the inlet valve rocker axle 10 by the axis hole of offering on it, and with inlet valve rocker axle 10 for waving the axle center; Have on the said inlet valve rocker 8 and be positioned at the actuation arm of waving the both sides, axle center, relative with intake valve 3 tops respectively with intake valve push rod 12 tops.And said exhaust valve putter 13 links to each other with crank mechanism 5; Said exhaust valve rocker arm axle 11 is through on the exhaust valve rocker arm axle stop screw 19 also crosswise fixed to cylinder head 2; Said exhaust valve rocker arm 9 is sheathed with on the exhaust valve rocker arm axle 11 by the axis hole of offering on it, and with exhaust valve rocker arm axle 11 for waving the axle center; Have on the said exhaust valve rocker arm 9 and be positioned at the actuation arm of waving the both sides, axle center, relative with exhaust valve 4 tops respectively with exhaust valve putter 13 tops.
Be provided with screw hole with the relative actuation arm in intake valve push rod 12 tops on
said inlet valve rocker 8, said intake valve gap adjustment screws 14 is inverted the screw hole that passes on this actuation arm and is fixed on this actuation arm by intake valve locking nut 16.The screw head of said intake valve gap adjustment screws 14 is provided with arc groove, and intake valve push rod 12 tops form the ball heads that matees with arc groove.And also being provided with screw hole on the actuation arm relative on the said exhaust valve rocker arm 9 with exhaust valve putter 13, said emission valve clearance adjusting screw 15 is inverted the screw hole that passes on this actuation arm and is fixed on this actuation arm by exhaust valve locking nut 17.The screw head of said emission valve clearance adjusting screw 15 is provided with arc groove, and exhaust valve putter 13 tops form the ball heads that matees with arc groove.
During
gasoline engine inlet-air, intake valve push rod 12 is driven by crank mechanism 3 to be fallen, and inlet valve rocker 8 compresses an end actuation arm at intake valve 3 tops and unclamps, and it is air-breathing to make intake valve 3 under the effect of intake valve reseting pressuring spring 26, upspring.One end actuation arm of exhaust valve rocker arm 9 then receives exhaust valve putter 13 pushing tows, makes exhaust valve rocker arm 9 the other end actuation arm compress exhaust valve 4 tops, forces exhaust valve 4 closures.The petrol engine exhaust then is the inverse process of above-mentioned workflow, petrolic intake valve 3 and exhaust valve 4 alternation under the effect of rocker arm body.
This petrol engine that
the utility model provides; Because intake valve 3 adopts the V-type arrangement with exhaust valve 4; So can guarantee under the prerequisite of intensifying cylinder area of bed not, to be beneficial to further increasing inlet and outlet gate seat circle 6,7 sizes; Thereby can strengthen air inflow and air displacement 10-17%, like this can improve petrolic power per liter 15%-20%.
Routine techniques is compared in
, and the utility model can be guaranteed its compact structure when improving petrol engine power, thereby saves the material of petrol engine cylinder head greatly, reduces manufacture cost.
This petrol engine that
the utility model provides; Its inlet and outlet door rocking arm 8,9 all carries out activity with separately pitman arm shaft for waving the axle center, compares existing technology, and is not easy to wear; Sensitivity is better; Need not often inlet and outlet door rocking arm 8,9 to be adjusted or changed,, and greatly reduce cost of equipment maintenance so functional reliability is higher.
the foregoing description certainly only are the technical conceive and the characteristics of explanation the utility model; Its purpose is to let the people who is familiar with this technology can understand content of the utility model and enforcement according to this, can not limit the protection domain of the utility model with this.All equivalent transformation or modifications of doing according to the spirit of the utility model main technical schemes all should be encompassed within the protection domain of the utility model.
Claims (7)
1. petrol engine; Comprise crankcase (1), be fixed on cylinder on the crankcase (1), be positioned at cylinder top cylinder head (2), be located at the inlet and outlet door (3,4) on cylinder head (2) the inlet and outlet mouth, and the crank mechanism (5) that connects in the crankcase (1) is used to drive the movable rocker arm body of inlet and outlet door (3,4); Be fixed with inlet and outlet gate seat circle (6,7) on the said inlet and outlet mouth respectively; It is characterized in that said intake valve (3) and the V-shaped layout of exhaust valve (4); And said rocker arm body is a symplex structure, comprises inlet and outlet door rocking arm (8,9), inlet and outlet door pitman arm shaft (10,11) and inlet and outlet door push rod (12,13); Wherein said intake valve push rod (12) links to each other with crank mechanism (5); Said inlet valve rocker axle (10) laterally is located on the cylinder head (2); Said inlet valve rocker (8) is sheathed with on the inlet valve rocker axle (10) by the axis hole of offering on it, and with inlet valve rocker axle (10) for waving the axle center; Have on the said inlet valve rocker (8) and be positioned at the actuation arm of waving the both sides, axle center, relative with intake valve (3) top respectively with intake valve push rod (12) top; And said exhaust valve putter (13) links to each other with crank mechanism (5); Said exhaust valve rocker arm axle (11) also laterally is located on the cylinder head (2); Said exhaust valve rocker arm (9) is sheathed with on the exhaust valve rocker arm axle (11) by the axis hole of offering on it, and with exhaust valve rocker arm axle (11) for waving the axle center; Have on the said exhaust valve rocker arm (9) and be positioned at the actuation arm of waving the both sides, axle center, relative with exhaust valve (4) top respectively with exhaust valve putter (13) top.
2. a kind of petrol engine according to claim 1 is characterized in that said rocker arm body also comprises inlet and outlet door gap adjustment screws (14,15) and inlet and outlet door lock jack panel (16,17); Said inlet valve rocker (8) is gone up and the relative actuation arm of intake valve push rod (12) is provided with screw hole; Intake valve gap adjustment screws (14) is passed this screw hole and is fixed on this actuation arm by intake valve locking nut (16), and said intake valve gap adjustment screws (14) contacts with intake valve push rod (12) top; And also be provided with screw hole on the last actuation arm relative of said exhaust valve rocker arm (9) with exhaust valve putter (13); Emission valve clearance adjusting screw (15) is passed this screw hole and is fixed on this actuation arm by exhaust valve locking nut (17), and said emission valve clearance adjusting screw (15) contacts with exhaust valve putter (13) top.
3. a kind of petrol engine according to claim 2; It is characterized in that said intake valve gap adjustment screws (14) is inverted passes the screw hole on the inlet valve rocker (8); The screw head of this intake valve gap adjustment screws (14) is provided with arc groove, and intake valve push rod (12) top forms the ball heads with the arc groove coupling; Same; Said emission valve clearance adjusting screw (15) is inverted and is passed the screw hole on the exhaust valve rocker arm (9); The screw head of this emission valve clearance adjusting screw (15) is provided with arc groove, and exhaust valve putter (13) top forms the ball heads with the arc groove coupling.
4. a kind of petrol engine according to claim 1; It is characterized in that said inlet valve rocker axle (10) is fixed on the cylinder head (2) through inlet valve rocker axle stop screw (18), and exhaust valve rocker arm axle (11) is fixed on the cylinder head (2) through exhaust valve rocker arm axle stop screw (19).
5. according to claim 1 or 2 or 3 or 4 described a kind of petrol engines, it is characterized in that cylinder head (2) is provided with the inlet and outlet door conduit (20,21) that supplies inlet and outlet door (3,4) telescopic movable respectively; Be respectively equipped with inlet and outlet door oil sealing (22,23) in the said inlet and outlet door conduit (20,21).
6. according to claim 1 or 2 or 3 or 4 described a kind of petrol engines; The top that it is characterized in that said inlet and outlet door (3,4) is fixed with inlet and outlet door spring seat (24,25) respectively; Be provided with intake valve reseting pressuring spring (26) between said inlet-valve spring seat (24) and the cylinder head (2), and be provided with exhaust valve reseting pressuring spring (27) between exhaust valve spring seat (25) and the cylinder head (2).
7. according to claim 1 or 2 or 3 or 4 described a kind of petrol engines, it is characterized in that said inlet and outlet door (3,4) top is fixed with inlet and outlet door helmet (28,29) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200968610U CN202483663U (en) | 2012-03-15 | 2012-03-15 | Petrol engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200968610U CN202483663U (en) | 2012-03-15 | 2012-03-15 | Petrol engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202483663U true CN202483663U (en) | 2012-10-10 |
Family
ID=46958090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200968610U Expired - Fee Related CN202483663U (en) | 2012-03-15 | 2012-03-15 | Petrol engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202483663U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265445A (en) * | 2014-01-02 | 2015-01-07 | 汪永康 | Exhaust gas valve |
| CN104832237A (en) * | 2015-05-07 | 2015-08-12 | 苏州市双马机电有限公司 | Valve rocker mounting mechanism and gasoline engine thereof |
-
2012
- 2012-03-15 CN CN2012200968610U patent/CN202483663U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265445A (en) * | 2014-01-02 | 2015-01-07 | 汪永康 | Exhaust gas valve |
| CN104832237A (en) * | 2015-05-07 | 2015-08-12 | 苏州市双马机电有限公司 | Valve rocker mounting mechanism and gasoline engine thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2009022218A3 (en) | Piston for internal combustion engine | |
| CN104295331B (en) | Air distributing mechanism of engine for motorcycle and its motorcycle engine | |
| CN202483663U (en) | Petrol engine | |
| CN2856429Y (en) | General multiple air gates admission gear of small I.C.engine | |
| CN202483660U (en) | Valve rocker mechanism for gasoline engine | |
| CN205297668U (en) | Car internal combustion engine valve | |
| CN2871854Y (en) | Straight-topped cam-shaft engine | |
| CN103850790B (en) | Without dead point reciprocating internal combustion engine | |
| CN201246200Y (en) | Rotary type air valve for internal combustion engine | |
| CN204200300U (en) | Cylinder head cover multi-point injection lubricating structure | |
| CN208831059U (en) | A kind of pneumatic rocker arm of motorcycle | |
| CN2789431Y (en) | Motorcycle engine | |
| CN107355308B (en) | A kind of piston structure of built-in valve | |
| CN201412197Y (en) | Universal gasoline engine camshaft | |
| CN203067050U (en) | Automobile engine valve assembly | |
| CN203296944U (en) | Air-return-type air cylinder | |
| CN2576989Y (en) | Fuel injection pump for diesel engine | |
| CN2911193Y (en) | Valve control gear of engine | |
| CN1314883C (en) | Piston compensated rotating valve intake and exhaust engine | |
| CN203730130U (en) | Dead point-free reciprocating internal combustion engine | |
| CN2583363Y (en) | Piston compensation rotary valve air inlet and exhaust engine | |
| CN203441558U (en) | Braking device of independent cam type engine | |
| CN108708791A (en) | A kind of cam slide formula engine braking apparatus | |
| CN203627029U (en) | Concave shaft gas distribution mechanism | |
| CN2821168Y (en) | Chain driving double cam pushing rod distribution structure of single cylinder four stroke gasoline machine |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121010 Termination date: 20210315 |