CN203783746U - Cylinder cover of gas engine - Google Patents
Cylinder cover of gas engine Download PDFInfo
- Publication number
- CN203783746U CN203783746U CN201420030364.XU CN201420030364U CN203783746U CN 203783746 U CN203783746 U CN 203783746U CN 201420030364 U CN201420030364 U CN 201420030364U CN 203783746 U CN203783746 U CN 203783746U
- Authority
- CN
- China
- Prior art keywords
- edge cover
- mounting hole
- cylinder head
- gas engine
- cylinder cover
- 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
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- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses a cylinder cover of a gas engine. The cylinder cover comprises a cylinder cover body (1) and is characterized in that the middle of the cylinder cover body (1) is provided with an insert brush mounting hole (5); the insert brush mounting hole (5) is internally provided with an insert brush (3); the insert brush mounting hole (5) is at least provided with a groove capable of accommodating a rubber ring; the rubber ring in the groove (4) is capable of tightly extruding the insert brush (3) and the insert brush mounting hole (5). The cylinder cover is simple in structure, capable of ensuring that water is prevented from permeating into a cylinder of the engine, reducing damage of a fire piston and a piston and ensuring that the matching characteristic of the insert brush and the cylinder cover after the engine operates for a long time, and is high in reliability.
Description
Technical field
The utility model relates to engine art, specifically, relates to a kind of gas engine cylinder head.
Background technique
In existing gas engine cylinder head, conventionally because the restriction of spatial structure, guarantee again the cooling effect of cylinder cover water jacket simultaneously, cannot pass through directly set-point ignition system mounting hole in cylinder head of casting and machining mode, so cylinder head need to be bumped into the edge cover of copper material, edge cover adopts lower end interference fit with cylinder head, and upper gap coordinates the mode that adds O-ring seals to seal.Yet, copper edge cover is different from cylinder cap bulk material, thermal expansion coefficient is different, after motor operation a period of time, registration property changes or because copper sheathing lower end is loosening during dismounting spark plug, thereby there is infiltration, enters in cylinder, damage spark plug and piston etc., cause engine power to decline and scuffing of cylinder bore fault, edge cover also needs combination to process inner hole thread for spark plug is installed after being pressed into cylinder head simultaneously, and technological requirement is high.This just need to improve existing gas engine cylinder head, makes to increase its sealing and greatly strengthens, and reduces the wearing and tearing of workpiece, preferably simple in structure easy to use.
By retrieval, we retrieve following patent, but all have certain defect, for example:
Chinese patent, application number: CN201120007165.3, summary: this model utility discloses a kind of motorcycle engine cylinder cap, cylinder head respectively with skull and cylinder body connection, cylinder head inner bottom surface pit is installed and is coordinated the space forming for supplying the firing chamber of mixed gas burning with piston-top surface, in cylinder head, be provided with intake duct, air outlet flue, intake valve, exhaust valve, cooling duct and spark-plug hole, spark-plug hole is positioned at top of combustion chamber, firing chamber be shaped as ellipse, combustor surface amasss as 60-70cm2, combustion chamber volume is 15-17.8cm3, the surface to volume ratio of firing chamber is 3.93-3.98, piston-top surface is 1.4mm ± 0.1mm to the crowded ebb interval distance of head combustion chamber end face, and its quench area is 764-1047mm2, intake duct is comprised of around the tangential inlet duct of cylinder head longitudinal axis rotation two symmetrical Inlet Swirls that produce, spark-plug hole with the distance of intake valve than the little 1mm of the distance of spark-plug hole and exhaust valve, but there is the easily defect of infiltration in this model utility.
Summary of the invention
The utility model, for easy infiltration theing exist in existing cylinder head, damages spark plug and piston, complex structure and other problems, provides a kind of gas engine cylinder head, to address the above problem.
Scheme of the present utility model is by such realization: construct a kind of gas engine cylinder head, comprise cylinder head body, described cylinder head body middle part has and is provided with edge cover mounting hole, in described edge cover mounting hole, be provided with edge cover, described edge cover mounting hole place is at least provided with the groove that a place can hold rubber ring, and it is tight with the extruding of edge cover mounting hole that the rubber ring in described groove will be inlayed cover.
The know-why of the utility model scheme is: by groove being set in edge cover mounting hole, and rubber ring is arranged in groove, rubber ring can be pushed tightly with edge cover, thereby realize rubber ring, keep higher compressibility and fill factor, whole edge cover is guaranteed to seal reliably.
In the utility model, in order to realize edge cover, can better be fixed in edge cover mounting hole, the scheme of employing is that described edge cover mounting hole bottom position is provided with the internal thread supporting with inlaying cover.
In the utility model, as scheme further, described edge cover mounting hole, being provided with seal washer with edge cover lower end laminating plane, can further improve the micro-sealing effect in this position.
And as the another kind of scheme of such scheme, described edge cover mounting hole is to be provided with high temperature resistant glue bonding with edge cover lower end laminating plane.
In the utility model, as scheme further, described edge cover tip position is provided with groove, thereby can improve himself assembly technology.
The beneficial effects of the utility model are:
1: the utility model is simple in structure guarantees that motor can infiltrate in cylinder by anti-sealing, has reduced the damage of fiery piston and piston, and after the long-term work of motor, edge cover does not change with cylinder head registration property, and reliability is high.
2. the utility model processing is simple, can in original equipment Foundations, improve, and good manufacturability, is convenient to use and promotes
Accompanying drawing explanation
Fig. 1 is the utility model embodiment 1 structural representation;
Below figure number explanation:
Cylinder head body 1, seal washer 2, edge cover 3, rubber ring 4, edge cover mounting hole 5.
Embodiment
Below in conjunction with the drawings and specific embodiments, describe the utility model gas engine cylinder head, these descriptions are not that the utility model content is further limited.
Embodiment 1:
As shown in Figure 1, this engine start machine cylinder head, comprise cylinder head body 1, described cylinder head body 1 middle part has and is provided with edge cover mounting hole 5, in edge cover mounting hole 5, be provided with edge cover 3, at edge cover mounting hole 5 lower positions, be provided with the internal thread supporting with inlaying cover 3, edge cover mounting hole 5 side wall upper part positions are provided with a groove that can hold rubber ring 4, it is tight with 5 extruding of edge cover mounting hole that rubber ring 4 in groove will be inlayed cover 3, at edge cover mounting hole 5, being provided with seal washer 2 with edge cover 3 lower end laminating planes, at edge cover 3 tip positions, be provided with groove in addition.By the setting of above-mentioned rubber ring 4 and seal washer 2, can infiltrate in cylinder by effective anti-sealing.
Embodiment 2:
Difference from Example 1 is, it is bonding that the seal washer 2 of edge cover mounting hole 5 at the plane place with the 3 lower ends laminatings of edge cover is replaced by high temperature resistant glue, in addition, and being arranged on edge cover mounting hole 5 top inner circumferences of rubber ring 4, its correspondence is provided with groove, and all the other working principles are identical with embodiment 1.
In addition, in the utility model, the magnitude setting of rubber ring 4 can increase or reduce according to actual requirement.
Finally it should be noted that: obviously, above-described embodiment is only used to clearly illustrate the utility model example, and not to the restriction of implementing.For the those of ordinary skill in described field, can also make other changes in different forms on the basis of the above description.Here without also cannot be to all mode of execution with exhaustive.And the apparent variation of being amplified out thus or change are still among protection domain of the present utility model.
Claims (5)
1. a gas engine cylinder head, comprise cylinder head body (1), it is characterized in that: described cylinder head body (1) middle part has and is provided with edge cover mounting hole (5), in described edge cover mounting hole (5), be provided with edge cover (3), described edge cover mounting hole (5) locates to be at least provided with the groove that a place can hold rubber ring, and it is tight with edge cover mounting hole (5) extruding that the rubber ring in described groove (4) will be inlayed cover (3).
2. gas engine cylinder head according to claim 1, is characterized in that: described edge cover mounting hole (5) bottom position is provided with the internal thread supporting with inlaying cover (3).
3. gas engine cylinder head according to claim 1, is characterized in that: described edge cover mounting hole (5) is being provided with seal washer (2) with edge cover (3) lower end laminating plane.
4. gas engine cylinder head according to claim 1, is characterized in that: described edge cover mounting hole (5) is to be provided with high temperature resistant glue bonding with edge cover (3) lower end laminating plane.
5. gas engine cylinder head according to claim 1, is characterized in that: described edge cover (3) tip position is provided with groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420030364.XU CN203783746U (en) | 2014-01-17 | 2014-01-17 | Cylinder cover of gas engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420030364.XU CN203783746U (en) | 2014-01-17 | 2014-01-17 | Cylinder cover of gas engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203783746U true CN203783746U (en) | 2014-08-20 |
Family
ID=51319940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420030364.XU Expired - Fee Related CN203783746U (en) | 2014-01-17 | 2014-01-17 | Cylinder cover of gas engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203783746U (en) |
-
2014
- 2014-01-17 CN CN201420030364.XU patent/CN203783746U/en not_active Expired - Fee Related
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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: 20140820 Termination date: 20220117 |