KR20180022110A - Water jacket spacer - Google Patents

Abstract

According to the present invention, provided is a water jacket spacer. According to the present invention, a sealing member which can keep tightness for preventing flow of inter-layer cooling water can be installed in the water jacket spacer. Therefore, friction of a piston can be minimized by controlling the flow of the cooling water in the water jacket, and by separately cooling the water. Moreover, an over-increase in the oil temperature can be controlled to increase fuel efficiency. According to the present invention, the water jacket spacer has an upper frame and a lower frame formed in a shape equivalent to the water jacket formed on a cylinder block, and has a vertical supporting frame integrally connecting the upper frame and the lower frame. Therefore, a connecting surface having an irregular groove unit can be formed on an inner surface and an outer surface of the upper frame. Moreover, a sealing member of a rubber material can be installed on the connecting surface of the inner surface and the outer surface using a fixing means.

Description

Water jacket spacer {WATER JACKET SPACER}

The present invention relates to a water jacket spacer, and more particularly, to a water jacket spacer having a water jacket formed along the entire circumference of each cylinder bore to divide the flow of cooling water into upper and lower parts inside the cylinder block, To a water jacket spacer capable of improving cooling performance through a spacer separating the channel and the lower channel.

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 spacer 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 spacer 15 is made of a resin material and is inserted into a water jacket 13 formed along the circumference of each cylinder bore 10a of the cylinder block 10 to closely contact the lower end thereof. A flow path guide for controlling the flow of cooling water is provided outside the spacer 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 train transmitted from the cylinder liner ) Is kept constant.

2 shows a mounted water jacket spacer 15 in which a water jacket spacer 15 is formed by inserting a water jacket 13 inside a cylinder block 10 into an upper channel C1 and a 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 spacer has a disadvantage in that the airtightness is poor to maintain the flow of the inter-layer coolant water hermetically when the hydraulic pressure of the coolant water is generated during engine operation.

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

SUMMARY OF THE INVENTION The present invention has been conceived to solve the above-mentioned problems, and it is an object of the present invention to provide a water jacket spacer that can ensure airtightness to prevent the flow of interlayer cooling water, It is an object of the present invention to provide a water jacket spacer that minimizes piston friction loss through separate cooling and suppresses an excessive increase in oil temperature, thereby improving fuel economy.

As a technical means for achieving the above technical object, there is provided a water jacket spacer comprising an upper / lower frame having the same shape as a water jacket formed on a cylinder block, and a vertical support frame integrally connecting the upper / Wherein a contact surface having recessed and recessed grooves is formed on the inner and outer surfaces of the upper frame, and a sealing member of a rubber material is provided on the inner and outer contact surfaces through fixing means.

According to the embodiment of the present invention, the irregular groove portions of the contact surface may be regularly or irregularly arranged on the entire surface or may be formed in a lattice form.

According to an embodiment of the present invention, the fixing means is constituted by a rivet, and the sealing member can be closely attached to the inner and outer contact surfaces.

According to the embodiment of the present invention, the fixing means is provided at one side of the inner and outer contact surfaces, and includes a fixing pin formed with fixing protrusions, and a fixing pin provided at a position opposite to the fixing pin, To prevent dislodgement.

According to the embodiment of the present invention, the fixing means may be constituted by a fixing bolt provided on one side of the inner and outer contact surfaces, and a flange nut provided at the opposite position of the fixing bolt.

According to the embodiment of the present invention, the fixing means includes an insertion pin provided at one side of the inner and outer contact surfaces, an anchor provided at the opposite position of the insertion pin and including the insertion pin therein, A through hole formed in a direction orthogonal to a joining direction of the anchor and the insertion pin, and an engagement pin vertically inserted and fixed to the through hole from the upper end of the upper frame.

According to an embodiment of the present invention, the fixing means may be a double-sided tape or an adhesive.

According to an embodiment of the present invention, the fixing means may include a frame installed along the rim of the sealing member, a projection formed along the frame, and a projection groove formed on the contact surface so that the projection is securely fixed .

According to the embodiment of the present invention, a releasing agent can be coated on the outer surface of the sealing member.

In the water jacket spacer according to the present invention, the flow of cooling water in the water jacket is divided through the reliable fixing structure of the sealing member to increase the flow rate of cooling water in the upper channel, thereby efficiently cooling the upper end of the cylinder block, There is an advantage.

In addition, the sealing member provided in the water jacket spacer of the present invention is sealed and fixed so as to prevent the cooling water from flowing between the layers of the water jacket, thereby preventing damage to the cylinder head contacting the upper surface of the water jacket spacer.

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 perspective view of a water jacket spacer according to a first embodiment of the present invention,
4 is a side cross-sectional view of a water jacket spacer according to a first embodiment of the present invention,
5 is a partial cross-sectional view of a cylinder block in which a water jacket spacer according to the first embodiment of the present invention is installed,
6 is a side cross-sectional view of a water jacket spacer according to a second embodiment of the present invention,
7 is a side cross-sectional view of a water jacket spacer according to a third embodiment of the present invention,
8 is a side cross-sectional view of a water jacket spacer according to a fourth embodiment of the present invention,
9 is a perspective view of a water jacket spacer according to a fifth embodiment of the present invention,
10 is a side cross-sectional view of a water jacket spacer according to a fifth 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 a side cross-sectional view of a water jacket spacer according to a first embodiment of the present invention, and FIG. 5 is a cross-sectional view of the water jacket spacer according to the first embodiment of the present invention 6 is a side cross-sectional view of the water jacket spacer according to the second embodiment of the present invention, and Fig. 7 is a cross-sectional view of the water jacket spacer according to the third embodiment of the present invention. FIG. 9 is a perspective view of a water jacket spacer according to a fifth embodiment of the present invention, and FIG. 10 is a side view of the water jacket spacer according to the fourth embodiment of the present invention. Sectional view of the water jacket spacer according to the fourth embodiment.

The water jacket spacer 100 of the present invention is divided into a layer separated inside the water jacket 13 (see FIGS. 1 and 5), that is, an upper channel C1 and a lower channel C2 to control the flow of cooling water .

3, the water jacket spacer 100 according to the present invention is largely formed in the same shape as the water jacket 13 formed on the cylinder block 10 (see FIG. 1). The water jacket spacer 100 has a snowball shape And a supporting frame 130 integrally connecting the upper frame 110 and the lower frame 120. The lower frame 120 is connected to the upper frame 110, And a sealing member 200 surrounding the inner and outer surfaces of the sealing member 110.

5, the water jacket spacer 100 is inserted into the water jacket 13 so that the layer through which the cooling water flows is divided into a space upper channel C1 formed upwardly through the sealing member 200 and a space Thereby separating the lower channel C2.

First, since the water jacket spacer 100 is required to maintain its shape, it is preferable to use a material having constant rigidity and elasticity, and it is preferable that the water jacket spacer 100 is made of metal or plastic. When the water jacket spacer 100 is inserted into the inner periphery of the water jacket 13, particularly when the side cross-sectional structure of the water jacket 13 is formed in a conical shape narrowing downward, (130) presses the inner circumference of the water jacket (13) and is firmly fixed.

The stopper protrusion 112 protrudes upward at both ends of the upper and lower frames 110 and 120. The stopper protrusion 112 protrudes upward from the upper frame 110, It is preferable that the water jacket 13 is structured so as to be firmly fixed at the inner periphery of the water jacket 13 by increasing the surface contacting the inner periphery of the water jacket 13. [ The water jacket 13 can be prevented from being pushed upward in the water jacket 13 through the stopper projection 112 and the water jacket 13 can be prevented from being separated from the water jacket 13, The height of the channel C1 and the height of the lower channel C2 can be adjusted.

The vertical support frame 130 connecting the upper and lower frames 110 and 120 is preferably made of the same material as that of the upper and lower frames 110 and 120 and a plurality of water jackets 13 ), And can be firmly supported.

On the other hand, in the contact surface 114 of the inner and outer surfaces of the upper frame 110 on which the sealing member 200 is installed, as shown in FIGS. 3 to 4, a protruding and recessed groove portion 114a is formed for increasing the adhesion with the sealing member 200 May be regularly arranged in an irregular manner, or may be formed in a mesh-like lattice structure.

The sealing member 200 provided in the recessed groove portion 114a of the upper frame 110 is provided with a sealing function for preventing the flow of cooling water to the inner peripheral edge of the water jacket 13 and a portion contacting the cylinder head, It is preferable that it is made of an elastic rubber material.

1st Example

3 to 5, when the sealing member 200 is installed by the fixing means of the first embodiment, the sealing member 200 is positioned on the contact surface 114 of the inner and outer surfaces of the sealing member 200 , The rivet 210 can be used as a fixing means for fixing.

A plurality of rivets 210 may be installed on the same plane along the contact surface 114.

Although not shown on the outer surface of the sealing member 200 fixed through the rivet 210, the release agent is applied to prevent the sealing member 200 from being damaged due to adhesion and flow in the cylinder block.

Second Example

The fixing means of the sealing member 200 according to FIG. 6 is provided with a fixing pin 220 on one side of the inner and outer contact surfaces 114. On the circumference of the fixing pin 220, fixing protrusions 220a May be protruded to a predetermined size.

A pressing piece 222 is provided from the side of the opposing contact surface 114 provided with the fixing pin 220 and a fixing pin 220 including the fixing protrusion 220a is positioned inside the pressing piece 222 It is possible to prevent deviation.

The outer surface of the sealing member 200 fixed through the fixing pin 220 and the compression piece 222 is coated with a release agent to prevent the sealing member 200 from being damaged due to adhesion and flow in the cylinder block .

Third Example

The fixing means of the sealing member 200 according to Fig. 7 is provided with fixing bolts 230 on one side of the inner and outer contact surfaces 114 and an opposing contact surface 114 on which the fixing bolts 230 are provided. And a fixing bolt 230 is inserted into the flange nut 232 to prevent the flange nut 232 from coming off.

The outer surface of the sealing member 200 fixed through the fixing bolt 230 and the flange nut 232 is not shown but is coated with a release agent to prevent the sealing member 200 from being damaged due to adhesion and flow in the cylinder block can do.

Fourth Example

The fixing means of the sealing member 200 according to Fig. 8 includes the insertion pin 240 on one side of the inner and outer contact surfaces 114 and the opposite contact surface 114 on which the insertion pin 240 is provided. An anchor 242 is provided from the side of the anchor 242 and the insertion pin 240 is positioned inside the anchor 242.

A through hole 244 perpendicular to the coupling direction of the anchor 242 and the insertion pin 240 is formed and the coupling pin 246 is vertically inserted into the through hole 244 from the upper end of the upper frame 110 Can be inserted and fixedly installed.

The outer surface of the sealing member 200 fixed through the insertion pin 240 and the anchor 242 and the coupling pin 246 is not shown but the release agent is applied to the sealing member 200 due to adhesion and flow in the cylinder block, Can be prevented from being damaged.

Fifth Example

9 to 10, a frame 250 made of a synthetic resin material such as plastic is provided along the rim of the sealing member 200, and the frame 250 is provided with a frame 250, A plurality of protrusions 252 may be formed.

A protrusion groove 116 is formed on the contact surface 114 so as to correspond to the protrusion 252 so that the protrusion 252 can be inserted and fixed so as to be pressed.

The outer surface of the sealing member 200 fixed through the frame 250 including the sealing member 200 and the protrusion groove 116 is coated with a release agent not shown to prevent the sealing member 200 from adhering to the cylinder block 200 can be prevented from being damaged.

Although not shown, a double-faced tape or an adhesive may be used to increase the adhesive strength between the contact surface 114 and the sealing member 200 as in the fixing means of each embodiment. Alternatively, a sealing member 200 may be fixed.

The operation of the water jacket spacer 100 according to the present invention having the above-described structure is such that the water jacket spacer 100 is inserted and fixed to the water jacket 13 again as shown in FIG. Furthermore, the upper channel (C1) and the lower channel (C2) are formed in the water jacket (13) through the sealing member (200) of the water jacket spacer (100).

The flow rate of the cooling water flowing in the upper channel (C1) portion of the water jacket (13) is divided by the flow rate of the cooling water flowing in the lower channel (C2) The thermal load on the upper end of the cylinder block 10 can be reduced.

On the other hand, the contact surface 114 of the water jacket spacer 100 is provided with the recessed groove portion 114a to increase the adhesive force with the sealing member 200, and furthermore, the sealing member 200 is fixedly installed through various fixing means, It can have a sealing effect.

As described above, according to the water jacket spacer according to the embodiment of the present invention, by dividing the flow of the cooling water in the water jacket 13 and increasing the flow rate of cooling water in the upper channel, the upper end of the cylinder block, And the sealing member 200 installed in the water jacket spacer 100 through the fixing means is sealed to be interposed between the layers of the water jacket 13 so as to prevent the cooling water from interfering with the upper surface of the water jacket spacer 100 It is possible to prevent damage to the contacting cylinder head.

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 spacer 110: Upper frame
112: stopper projection 114: contact surface
114a: recessed groove portion 120:
130: support frame 200: sealing member
210: Rivet 220: Retaining pin
220a: Fixing projection 222:
230: Fixing bolt 232: Flange nut
240: insertion pin 242: anchor
244: through hole 246: engaging pin
250: frame 252: projection
C1: Upper channel C2: Lower channel

Claims (9)

A water jacket spacer comprising an upper / lower frame having the same shape as a water jacket formed in a cylinder block, and a vertical support frame integrally connecting the upper and lower frames,
A contact surface having recessed and recessed groove portions is formed on inner and outer surfaces of the upper frame,
And a sealing member of a rubber material is installed through fixing means on the inner and outer contact surfaces.
The method according to claim 1,
Wherein the concave and convex groove portions of the contact surface are regularly or irregularly arranged or formed in a lattice form on the entire surface.
The method according to claim 1,
Wherein,
Wherein the sealing member is formed by a rivet and is closely attached to the inner and outer contact surfaces of the sealing member.
The method according to claim 1,
Wherein,
A fixing pin provided on one side of the inner and outer contact surfaces and formed with fixing protrusions,
A pressing projection which is provided at a position opposite to the fixing pin,
Wherein the water jacket spacer is configured to receive the water jacket.
The method according to claim 1,
Wherein,
A fixing bolt provided on one of the inner and outer contact surfaces,
And a flange nut provided at an opposite position of the fixing bolt
≪ / RTI >
The method according to claim 1,
Wherein,
An insertion pin provided on one of the inner and outer contact surfaces,
An anchor provided at an opposite position of the insertion pin and including the insertion pin therein,
A through hole formed in a direction orthogonal to a direction of engagement of the anchor and the insertion pin,
And an engaging pin which is inserted and fixed from the upper end of the upper frame perpendicularly to the through hole,
Wherein the water jacket spacer is formed of a metal.
The method according to claim 1,
Wherein the fixing means is a double-sided tape or an adhesive.
The method according to claim 1,
Wherein,
A frame provided along the rim of the sealing member,
A protrusion formed along the frame,
The projections are formed in the contact surfaces so that the projections are firmly fitted and fixed
Wherein the water jacket spacer is configured to receive the water jacket.
The method according to claim 1,
And a releasing agent is coated on the outer surface of the sealing member.

Images