KR20190076114A - Water jacket spacer of cylinder block - Google Patents

Abstract

The present invention provides a water jacket insertion matter of a cylinder block, having high cooling effect and high heat reserving effect by maintaining airtightness and maintaining structural stability at the same time as the water jacket insertion matter of the cylinder block comprises a main frame, an auxiliary frame, and a heat reserving pad. To achieve the purpose of the present invention, according to the present invention, the water jacket insertion matter of the cylinder block includes: the main frame formed in a shape similar to that of a water jacket formed in the cylinder block as multiple circular arc surfaces are continuously connected by an integrated support frame; the auxiliary frame improving an adhesive force by being installed to include each circular arc surface; and the heat reserving pad included on the inner side of the auxiliary frame or installed on one side by a fixing unit.

Description

{WATER JACKET SPACER OF CYLINDER BLOCK}

The present invention relates to a water jacket insert of a cylinder block, and more particularly, to a water jacket insert of a cylinder block that is excellent in temperature control of a cylinder block and can maintain structural stability.

Generally, part of the heat generated in the combustion chamber of the engine is absorbed into the cylinder head, the cylinder block, the intake and exhaust valves, and the piston. If the temperature of these components excessively increases, thermal deformation may occur or the oil film on the inner wall of the cylinder may be broken to cause a lubricating failure phenomenon, thereby causing a thermal obstacle. The thermal failure of the engine causes abnormal combustion such as combustion failure, knocking, or preignition, thereby causing significant damage such as the loss of the piston, and the thermal efficiency is lowered and the output is also lowered. On the other hand, excessive cooling of the engine has problems such as deterioration of the output, fuel consumption and low temperature of the cylinder, so that it is necessary to appropriately control the cooling water temperature. In this respect, as shown in Fig. A water jacket insert 15 is applied to the water jacket 13 of the cylinder block 10 as a mechanism for improving the fuel economy of the engine by inserting foreign matter into the water jacket 13. The conventional water jacket insert 15 is made of a resin material and is inserted into the water jacket 13 formed along the circumference of each cylinder bore 10a of the cylinder block 10 and closely attached to the lower end thereof, A flow path guide for controlling the flow of cooling water is provided outside the insert 15 to regulate the flow rate and flow rate of the cooling water flowing to the outside and adjust the heat transfer coefficient of the engine heat transmitted from the cylinder liner ) Is kept constant.

2 shows a mounted water jacket insert 15 in which the water jacket 13 inside the cylinder block 10 is inserted into the upper channel C1 and the lower channel C2 The upper channel C1 induces a rapid cooling flow to induce sufficient cooling of the inter-cylinder bore and the cylinder bore top ring reverse (TRR), and the lower channel substantially stagnates the cooling water flow, The method of increasing the temperature is applied.

However, the water jacket insert is disadvantageous in that the airtightness is poor to keep the flow of the inter-layer coolant water hermetically when the water pressure of the coolant is generated during engine operation.

3, the sealing member 20 of the rubber material is provided so as to surround the inner and outer surfaces of the upper frame 15a of the water jacket insert 15 so that the upper channel C1 and the lower channel C2 ), It is possible to reduce the heat load by increasing the cooling water flow in the upper channel.

However, due to the flow velocity and pressure generated when the cooling water flows in the cylinder block, the water jacket insert 15 flows vertically and horizontally, thereby causing damage to the sealing member 20, There was a problem.

Korean Registered Patent No. 10-0980620 (Notification Date 2010.09.07) Korean Registered Patent No. 10-1283032 (Notification date 2013.07.05)

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and it is an object of the present invention to provide a heat insulating pad on one side of a main frame to maintain structural stability and to maintain airtightness through a heat pad, The purpose of the present invention is to provide a water jacket insert of a cylinder block having a high height.

Another object of the present invention is to provide a water jacket insert of a cylinder block including an auxiliary frame for fixing the main frame and the thermal pad and for increasing the adhesion even after insertion into the water jacket.

Technical Solution [12] Technical Solution [12] Technical Solution [12] Technical Solution [12] Technical Solution [12] In order to accomplish the above object, the present invention provides a water jacket And an inserting pad which is installed inside the sub frame or through a fixing means on one side of the sub frame.

According to the embodiment of the present invention, the auxiliary frame is made of a plate-like metal material having elasticity, and is provided with a space therein so as to include the arc surface and / or the thermal pad, Are bent and protruded to be inclined.

According to the embodiment of the present invention, the elastic pieces are formed such that opposing pairs are formed at equal intervals along the longitudinal direction, and the pair of elastic pieces are bent at an inclination in the same direction.

According to an embodiment of the present invention, the thermal pad may be a thermoplastic elastomer material such as TPE, TPU, TPEE or a thermosetting material.

According to the embodiment of the present invention, at least one channel guide groove may be formed on one surface of the heat insulating pad contacting the inner surface of the water jacket to control the temperature of the cylinder block.

According to an embodiment of the present invention, the securing means may be possible through a double-sided tape or glue or a hemming process.

According to the embodiment of the present invention, the fixing means may be installed on the auxiliary frame via the rivets and the washer on the upper and lower sides of the heat insulating pad.

According to the embodiment of the present invention, at least one mold groove and a projection are formed on one surface of the fixing means, which is in contact with the sub frame, and the auxiliary frame is provided with a fitting projection and a projection groove .

The water jacket insert of the cylinder block according to the present invention is provided with a heat insulating pad on one side of the main frame so that the lower side of the insert is kept warm to raise the temperature of the cylinder liner relatively to improve the engine cooling efficiency and the fuel consumption It is effective.

Further, since the main frame and the heat-insulating pad are fixedly installed through the auxiliary frame, the effect of separating the cooling water by the increase of the adhesion force is excellent and the assembling property is excellent.

1 is a perspective view of a water jacket spacer and a cylinder block according to the prior art,
2 is a partial cross-sectional view of a cylinder block in which a water jacket spacer according to the prior art is installed,
3 is a partial cross-sectional view of a cylinder block in which a water jacket spacer according to the prior art is installed,
4 is an exploded perspective view of a water jacket insert according to a first embodiment of the present invention,
Fig. 5 is a side sectional view of Fig. 4,
6 is an exploded perspective view of a water jacket insert according to a second embodiment of the present invention,
Fig. 7 is a side sectional view of Fig. 6,
8 is a cross-sectional view showing another embodiment of the fixing means according to the first embodiment of the present invention,
9 is a cross-sectional view showing still another embodiment of the fixing means according to the first embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

Throughout the specification of the present invention, when a part is referred to as "including " an element, it is understood that it may include other elements as well, without excluding other elements unless specifically stated otherwise.

4 is an exploded perspective view of a water jacket insert according to a first embodiment of the present invention, FIG. 5 is a side sectional view of FIG. 4, FIG. 6 is an exploded perspective view of a water jacket insert according to a second embodiment of the present invention FIG. 7 is a side sectional view of FIG. 6, FIG. 8 is a cross-sectional view showing another embodiment of the fixing means according to the first embodiment of the present invention, and FIG. 9 is a side view of the fixing means according to the first embodiment of the present invention Sectional view showing another embodiment.

The water jacket insert 100 of the present invention allows the temperature control of the cylinder block to be performed well in the separate cooling type inside the water jacket 13 (see FIG. 1).

4, the water jacket insert 100 according to the present invention mainly includes a main frame 110 and a water jacket 130 formed in the same or similar shape as the water jacket 13 formed in the cylinder block 10 An auxiliary frame 120 installed to include the main frame 110 and a thermal pad 130 included in the auxiliary frame 120 or installed on one side.

First, since the main frame 110 must maintain a predetermined shape, it is preferable to use a material having constant stiffness and elasticity. Preferably, the main frame 110 is made of metal or plastic, and can be manufactured through insert or double injection.

In the main frame 110, a circle-shaped circular arc surface 112 is continuously formed in a semicircular snow-like shape along the longitudinal direction, and about three to four circular arc surfaces 112 are continuously formed. But any vertical support frame 114 may be formed between the two support frames.

Here, it is preferable that the support frame 114 is configured so as to be wider than the inner peripheral edge of the water jacket 13 so as to be more firmly fixed at the inner peripheral edge of the water jacket 13.

The water jacket 13 can be prevented from being pushed upward in the water jacket 13 through the support frame 114 and the water jacket 13 can be prevented from being separated from the water jacket 13, The height of the space and the lower space can be adjusted.

The auxiliary frame 120 is installed so as to include the respective arc faces 112 therein and is made of a plate metal material having elasticity like a leaf spring so as to fix the heat insulating pad 130 and insert the water jacket 13 After that, the elasticity is used to increase the adhesion.

The auxiliary frame 120 includes the first embodiment in which only the circular arc surface 112 is enclosed and the one side of the auxiliary frame 120 is provided with the heat insulation pad 130 and the heat insulation pad 130 130) at the same time.

Firstly, the first An embodiment will be described with reference to Figs . 4 to 5.

The auxiliary frame 120 is formed in the shape of a circular arc so that a rectangular plate-shaped rectangular plate can be closely contacted with the concave surface of the circular arc surface 112, and then the upper and lower ends thereof are bent at a right angle in a block direction, To be wrapped.

The elastic piece 122 may be formed by cutting the upper and lower portions bent backward to a predetermined area and bending the cut portion.

The elastic piece 122 is integrally bent from the auxiliary frame 120 and tightly fixes the entire water jacket insert 100 to the inner surface of the water jacket 13.

The elastic pieces 122 may be formed in pairs such that the elastic pieces 122 are opposed to each other in the upward and downward directions. At least one elastic piece 122 may be formed at equal intervals along the longitudinal direction.

Further, the elastic piece 122 is bent and slantingly protruded, and it is preferable that the inclination angle is an acute angle, and the bending inclined direction may all be the same direction facing upward.

One surface of the auxiliary frame 120, that is, one surface of the auxiliary frame 120 on the concave surface side of the arc surface 112, forms a coupling surface 124 that is bent in the shape of " .

A heat insulating pad 130 may be provided so that a part of the joint surface 124 is included.

The thermal pad 130 may be a thermoplastic elastomer material such as TPE (Thermoplastic Elastomer), TPU (Thermoplastic Polyurethane Elastomer), or TPEE excellent in water resistance to facilitate cooling water flow and temperature control. Alternatively, the thermal pad 130 may be made of ethylene- Propylene Rubber).

In addition, the foam rubber may be made of a foam rubber material. The foam rubber is also called a foam rubber, and is natural rubber having a porous property by foaming latex, and is soft and elastic.

As shown in FIG. 4, at least one channel guide groove 132 is formed on one side of the heat insulation pad 130 in contact with the water jacket 13 to control the temperature of the cylinder block 10.

In the water jacket 13, the flow of the cooling water is controlled to be raised to an appropriate level or higher. However, since the cooling pad can not absorb the cooling water in the thermal pad 130 made of a thermoplastic elastomer, ) To maintain a proper level of temperature by flowing a minimum amount of cooling water.

In addition, the channel guide grooves 132 may be formed along the lateral direction of the heat-insulating pad 130, and a plurality of vertical grooves may be formed at equal intervals.

A fixing means is used to fix the heat pad 130 to the coupling surface 124 of the auxiliary frame 120, and the fixing means will be described with reference to FIG. 5 and FIGS. 8 to 9. FIG.

In FIG. 5, a double-sided tape or an adhesive 140 may be used as a fixing means, or it may be possible through a hemming process in which an edge is wound and fixed.

In the case of the illustrated adhesive 140, the primer is first applied to the bonding surface 124, and then the thermal pad 130 is pressed and bonded.

8, a predetermined space is formed by chamfering the upper and lower ends of the heat-insulating pad 130, and then the heat-insulating pad 130 and the auxiliary frame 120 are passed through the rivets 150 And a washer 152 may be provided on the side of the heat insulation pad 130 to increase the bonding force and to prevent deformation of the heat insulation pad 130 of the rubber material.

The rivet (150) may be a double row, and the head shape of the rivet nail is acceptable.

8, at least one mold groove 134 is formed on one side of the fixing frame 120 which is in contact with the auxiliary frame 120, and a projection 136 of "" is formed at the center of the mold groove 134, The locking protrusion 125 and the protrusion groove 126 are formed in the auxiliary frame 120 so that the mold recess 134 and the protrusion 136 are securely inserted and fixed.

The mold groove 134 and the protrusion 136 of the heat pad 130 are integrally formed when the mold is manufactured and the auxiliary frame 120 can also be formed at the time of insert or double injection.

Second Examples include  6 To  7.

The water jacket insert 100 of the present invention described in this embodiment has the same structure as that of the main frame 110, the auxiliary frame 120, and the heat pad 130, except that the first embodiment May be the same as or similar to the example. Therefore, the same or corresponding constituent elements will be given the same or similar reference numerals, and a description thereof will be omitted here.

A fixing means may be applied to the main frame 110 such that the thermosensitive pad 130 is attached to one side of the main frame 110 with an adhesive or a double-sided tape or the mold groove 134 and the protrusion 136 as in the first embodiment.

Meanwhile, the auxiliary frame 120 may be installed to include the main frame 110 and the thermal pad 130.

The auxiliary frame 120 is formed in the shape of a circular arc so that a rectangular plate-like rectangular plate can be closely contacted with the concave surface of the circular arc surface 112, and then the upper and lower ends of the auxiliary frame 120 are bent at a right angle, And the insulating pad 130 is included.

The elastic piece 122 may be formed by cutting the upper and lower portions bent backward to a predetermined area and bending the cut portion.

The elastic piece 122 is integrally bent from the auxiliary frame 120 and tightly fixes the whole of the water jacket insert 100 to the inner surface of the water jacket 13.

The elastic pieces 122 may be formed in pairs such that the elastic pieces 122 are opposed to each other in the upward and downward directions. At least one elastic piece 122 may be formed at equal intervals along the longitudinal direction.

Further, the elastic piece 122 is bent and slantingly protruded, and it is preferable that the inclination angle is an acute angle, and the bending inclined direction may all be the same direction facing upward.

5, the operation of the water jacket insert 100 according to the present invention having the above-described structure will be described with reference to FIG. 5 by fixing the water jacket insert 100 to the water jacket 13 , The temperature control of the cylinder block 10 can be excellent through the warming pad 130 of the water jacket insert 100.

Further, the sealing member may have a sealing effect through the thermal pad 130 in a state of being in contact with the inner surface of the water jacket 12 through the elastic piece 122 of the auxiliary frame 120, A minimum amount of cooling water is allowed to flow through the guide groove 132 to control the temperature of the cylinder block 10 to an appropriate level.

It is also possible to prevent the movement of the heat-insulating pad 130 from movement and departure through fixing means such as a double-sided tape or an adhesive 140 and other hemming for the purpose of coupling the auxiliary frame 120 and the heat-insulating pad 130, Sealing function can be maintained by preventing damage.

7 can also be brought into close contact with the inner surface of the water jacket 12 through the resilient piece 122 of the auxiliary frame 120 and can be inserted into the inner side of the auxiliary frame 120 The heat-insulating pad 130 has a warming effect and the temperature control of the cylinder block 10 can be excellent.

As described above, according to the water jacket insert 100 according to the embodiment of the present invention, by providing the heat insulating pad on one side of the main frame, the lower side of the insert is kept warm and the temperature of the cylinder liner is relatively increased, Improvement and fuel economy can be improved.

Further, since the main frame and the heat-insulating pad are fixedly installed through the auxiliary frame, the effect of separating the cooling water is enhanced by the increase of the adhesion force, and the assembling property can be excellent.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments.

10: cylinder block 13: water jacket
100: Water jacket insert 110: Main frame
112: arc surface 114: support frame
120: auxiliary frame 122: elastic piece
124: engaging surface 125: engaging projection
126: projection groove 130: thermal pad
132: channel guide groove 134: mold groove
136: projection 140: adhesive
150: Rivet 152: Washer
C1: Upper channel C2: Lower channel

Claims (8)

A main frame formed in a shape similar to a water jacket formed in the cylinder block by continuously connecting a plurality of circular arc faces via integral support frames,
An auxiliary frame provided so as to include the respective circular arc surfaces to increase adhesion,
An inserting pad provided inside the sub frame or installed on one side thereof through fixing means,
Wherein the water jacket insert of the cylinder block comprises:
The method according to claim 1,
The sub-
And a space is formed by bending the metal plate so as to include the arc surface and / or the thermal pad,
Wherein a plurality of elastic pieces are bent and protruded from the rear surface so as to be inclined.
3. The method of claim 2,
The elastic piece
A pair of opposed pairs is formed at regular intervals along the longitudinal direction,
Wherein the pair of elastic pieces are bent at an inclination in the same direction.
The method according to claim 1,
The heat-
Wherein the thermoplastic elastomer is a thermoplastic elastomer material such as TPE, TPU, TPEE or a thermosetting material.
The method according to claim 1,
The heat-
Wherein at least one channel guide groove is formed on one surface of the water jacket, which is in contact with the inner surface of the water jacket, to control the temperature of the cylinder block.
The method according to claim 1,
Wherein,
A water jacket insert of a cylinder block characterized by a double-sided tape or an adhesive or a hemming process.
The method according to claim 1,
Wherein,
Wherein the water jacket insert is installed on the auxiliary frame through rivets and washers on the upper and lower sides of the heat insulating pad.
The method according to claim 1,
Wherein,
Wherein at least one mold groove and a projection are formed on one surface of the auxiliary frame,
Wherein the auxiliary frame is provided with a fitting protrusion and a protrusion groove so that the mold recess and the protrusion are forcedly fitted and fixed.

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