CN202611920U - Structure by adopting single-layer head gasket and cylinder jacket shoulder for sealing - Google Patents
Structure by adopting single-layer head gasket and cylinder jacket shoulder for sealing Download PDFInfo
- Publication number
- CN202611920U CN202611920U CN 201220123377 CN201220123377U CN202611920U CN 202611920 U CN202611920 U CN 202611920U CN 201220123377 CN201220123377 CN 201220123377 CN 201220123377 U CN201220123377 U CN 201220123377U CN 202611920 U CN202611920 U CN 202611920U
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- head gasket
- sealing
- shoulder
- cylinder jacket
- cylinder
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Abstract
The utility model discloses a structure by adopting a single-layer head gasket and a cylinder jacket shoulder for sealing. A circle of convex and concave corrugation grooves are arranged in the top surface of the engine cylinder jacket shoulder in pressing mode, and a single-layer plate metal head gasket molded by one shot in punching mode is fastened and sealed with the corrugation grooves through cylinder bolts. The thickness of the single-layer plate metal head gasket is 1.0-1.4 millimeters, and can meet or exceed thickness requirements of a sandwich plate and compensate requirements of flatness completely. With the single-layer plate head gasket, protruding points arranged by a multilayer head gasket do not exist, and therefore the circle of convex and concave grooves are pressed in an original plane shoulder of the head gasket, formed corrugation protrusions are matched with the head gasket, and a large pressure value is guaranteed to form in the position. The structure by adopting the single-layer head gasket and the cylinder jacket shoulder for the sealing is installed on an engine cylinder jacket, and pressure tests and rack reliability tests are carried out. A test data result shows that the structure by adopting the single-layer head gasket and the cylinder jacket shoulder for the sealing completely meet design requirements.
Description
Technical field
The utility model is specifically related to a kind of between engine body and cylinder cap, the constructional device that adopts individual layer cylinder liner and cylinder sleeve shoulder to seal.
Background technique
Cylinder liner is between cylinder head and cylinder block, and its function is the microscopic void of filling up between the cylinder block and head, guarantees that there is good sealing property at the junction plane place, and then guarantees the sealing of firing chamber.Raising along with power of IC engine; Heat load constantly increases; The sealing of cylinder liner is more and more important, to the requirement of head gasket structure and material is: under the combustion gas operating conditions of HTHP and high corrosion, head gasket have enough heat-resisting, corrosion-resistant, have certain mechanical strength and elasticity; Can compensate the irregularity degree of junction plane, to guarantee sealing.Use more cylinder at present and be lined with two kinds: a kind of is the asbestos slate cylinder liner, in the middle of asbestos, accompanies the metal prong plate, and asbestos cover copper sheet or sheetmetal outward.This steel mat thickness is that 1.3～1.5mm has good elasticity and heat resistance, can use repeatedly, but intensity is relatively poor, and it is even that thickness is difficult to reach.Another kind is the metal cylinder liner that adopts solid multilayered metal film to process.This pad is used on the reinforcing stimulus more, and this cylinder pad stamps out the convex tendon of certain altitude around cylinder-bore, water hole and the oilhole of needs sealing, utilizes the resiliently deformable of convex tendon to realize sealing, and effect is better.But the shortcoming of multilayer mats is generally at least three layers of metal cylinder liners, and the thickness of every laminate is thinner, and the thickest single layer board is also less than 0.4mm.The position of cylinder liner stiffening rib will be easy to generate mechanical fatigue along with mechanical vibration during engine operation, can produce gap, gas blowby along with vibrating between cylinder bed course and the layer, especially for larger-size diesel engine, and the bad assurance of multilayer mats flatness.
Summary of the invention
The purpose of the utility model is, a kind of constructional device that adopts individual layer cylinder liner and cylinder sleeve shoulder to seal is provided, and both avoided the strength problem of single layer board, can reach multiple-plate sealing effect again.
Describe below in conjunction with the theory structure of accompanying drawing the utility model.In view of above-mentioned technological deficiency; The technological scheme that the utility model proposes is: the structure that adopts individual layer cylinder liner and cylinder sleeve shoulder to seal; Be pressed with the damascene trench that a circle is protruding and cave at cylinder sleeve of engine shoulder end face, one time punching molded single layer board metal cylinder liner is through cylinder bolt and damascene trench fit sealing.The thickness of single layer board metal cylinder liner is 1.0～1.4mm, has has met or exceeded multiple-plate thickness requirement, can compensate the requirement of planeness fully.Owing to be the single layer board cylinder liner, there is not the set salient point of multilayer mats, cylinder sleeve is pressed with the groove that a circle convex-concave falls into by original plane shoulder for this reason, and the ripple of formation is protruding to be cooperated with cylinder liner, guarantees in the bigger pressure values of this position formation.
The characteristics of the utility model are, the impact briquetting of single layer board cylinder liner one piece, and manufacturability is simple, and cost is lower.Owing to the ripple of suppressing a circle tongue and groove at the shoulder tip position of cylinder sleeve in advance, can guarantee at the bigger pressure area of this position formation.And the single-layer metal sheet of single-layer metal plate thickness in the sandwich plate, its tensile strength also is better than sandwich plate far away, and the compression resilience of its material itself is very good simultaneously; Specific elongation is greater than 40%; Surpass multiple-plate 35% requirement, improved sealability, and be fit to directly sealing.
Description of drawings
Shown in accompanying drawing be the utility model principle and structure diagram.
Embodiment
Below in conjunction with accompanying drawing and through embodiment the principle and the structure of the utility model are done further explanation.The structure that adopts individual layer cylinder liner and cylinder sleeve shoulder to seal; It is characterized in that being pressed with the damascene trench 2 that a circle is protruding and cave at cylinder sleeve of engine shoulder 1 end face, one time punching molded single layer board metal cylinder liner 3 is through cylinder bolt and damascene trench fit sealing.The thickness of single layer board metal cylinder liner 3 is 1.0～1.4mm.
The thickness of present embodiment single layer board metal cylinder liner 3 is 1.3mm, because cylinder liner adopts the structure compression moulding of one whole buttress according to engine body and cylinder cap, has eliminated the gap between each layer of sandwich plate cylinder liner.On this basis, cylinder pad oilhole, position, water hole are by the interior oil resistant rubber seal ring seal that studs with; The oil resistant rubber seal ring adopts the mode of welding to be connected with the cylinder pad, comes off to avoid this place.
The formed pressure of sandwich plate cylinder mouth is a linear sealing band, is equivalent to linear sealing.It sealing lean on the convex tendon sealing, promptly cylinder bolt fastening after, convex tendon is compressed distortion, produces resilience pretightening force sealing cylinder mouth.During engine operation, along with the generation of pressure of explosion, the continuous up-down vibration of cylinder cap meeting; The convex tendon position also can be constantly compacted and lax; Because the impacting force at convex tendon position size constantly changes, be easy to make the convex tendon position to produce fatigue failure, and the single layer board cylinder liner of the utility model does not have convex rib structure; The formed pressure of individual layer cylinder liner forms a face seal; Lean on the elasto plastic deformation of material own to keep sealing, dull and stereotyped up-down vibration own is not easy to produce fatigue failure, and reliability will be better than sandwich plate far away.The utility model is installed in engine cylinder and puts, and has carried out pressure test and stand reliability trial.Test data result shows, meets design requirement fully.
Claims (2)
1. the structure that adopts individual layer cylinder liner and cylinder sleeve shoulder to seal; It is characterized in that being pressed with the damascene trench (2) that a circle is protruding and cave at cylinder sleeve of engine shoulder (1) end face, one time punching molded single layer board metal cylinder liner (3) is through cylinder bolt and damascene trench fit sealing.
2. the structure that seals according to claim 1 described employing individual layer cylinder liner and cylinder sleeve shoulder, the thickness that it is characterized in that said single layer board metal cylinder liner (3) is 1.0～1.4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220123377 CN202611920U (en) | 2012-03-28 | 2012-03-28 | Structure by adopting single-layer head gasket and cylinder jacket shoulder for sealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220123377 CN202611920U (en) | 2012-03-28 | 2012-03-28 | Structure by adopting single-layer head gasket and cylinder jacket shoulder for sealing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202611920U true CN202611920U (en) | 2012-12-19 |
Family
ID=47345626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220123377 Expired - Lifetime CN202611920U (en) | 2012-03-28 | 2012-03-28 | Structure by adopting single-layer head gasket and cylinder jacket shoulder for sealing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202611920U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109322999A (en) * | 2017-08-01 | 2019-02-12 | 舍弗勒技术股份两合公司 | Sealing device and method for manufacturing same |
-
2012
- 2012-03-28 CN CN 201220123377 patent/CN202611920U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109322999A (en) * | 2017-08-01 | 2019-02-12 | 舍弗勒技术股份两合公司 | Sealing device and method for manufacturing same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Structure by adopting single-layer head gasket and cylinder jacket shoulder for sealing Effective date of registration: 20190612 Granted publication date: 20121219 Pledgee: Lingyuan steel enterprise limited liability company Pledgor: Dongfeng Chaoyang Chaochai Power Co., Ltd. Registration number: 2019210000021 |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121219 |