COMBUSTION CHAMBER LEAK DETECTION KIT IN VEHICLE ENGINES

Abstract

A detection kit for detecting combustion chamber leaks in water cooled otto or diesel vehicle engines includes a transparent solution reservoir placed in an expansion tank and/or expansion tank inlet/outlet hoses, and having low liquid and vapour permeability and high CO.sub.2 permeability, a pH indicator solution placed in the solution reservoir, stable under high temperature and high pressure, and indicating combustion chamber leaks by change of colour with the change in the pH value.

Claims

1. A detection kit for detecting combustion chamber leaks in water cooled otto or diesel vehicle engines, and it is characterized in that; it comprises: a transparent solution reservoir placed in an expansion tank and/or expansion tank inlet/outlet hoses, and having low liquid and vapour permeability and high CO.sub.2 permeability; a pH indicator solution placed in the solution reservoir, stable under high temperature and high pressure, and indicating combustion chamber leaks by change of colour with the change in the pH value.

2. The detection kit according to claim 1, characterised by comprising an immersion rope which is squeezed to the expansion tank cover so as to allow hanging down the solution reservoir into the expansion tank, has high flexibility and strength characteristics, and allows the solution reservoir to be immersed into and taken out of the expansion tank.

3. The detection kit according to claim 1, characterised by comprising a transparent flow reservoir, which is connected between the cut parts of the expansion tank inlet hose or the expansion tank outlet hose, comprises a flow inlet slot and a flow outlet slot, and allows direct and continuous monitoring of the pH indicator solution within the solution reservoir placed therein when the vehicle hood is opened.

4. The detection kit according to claim 1, characterised by comprising the solution reservoir which is formed of CPP film for instantaneous tests and BOPP films for long term use.

5. A method for detecting combustion chamber leaks in otto or diesel water cooled vehicle engines, characterized in that: detecting combustion chamber leaks by means of a solution placed in the cooling line, which has low liquid and vapour permeability and high CO.sub.2 permeability, is stable under high temperature and high pressure within the transparent solution reservoir, and changes colour with the change in the pH value.

Description

FIGURES FOR BETTER UNDERSTANDING OF THE INVENTION

[0021] FIG. 1; is a general front view of a vehicle engine combustion chamber leak detection kit.

[0022] FIG. 2; is a front view of a transparent flow reservoir on which a solution reservoir containing the solution is connected.

REFERENCE NUMBERS

[0023] 1. Solution reservoir [0024] 2. Solution [0025] 3. Immersion rope [0026] 4. Handgrip [0027] 5. Flow inlet [0028] 6. Flow outlet [0029] 7. Transparent flow reservoir [0030] 10. Test kit

DETAILED DESCRIPTION OF THE INVENTION

[0031] In this detailed description, the preferred embodiments of the test kit (10) according to the invention are only disclosed for better understanding of the subject without forming any limiting effect.

[0032] The test kit (10), details of which are shown in FIG. 1, in general terms consists of a solution (2) that changes colour due to the change in pH when it contacts with CO.sub.2 gas; a solution reservoir (1), into which the solution (2) is placed, which has a high liquid and vapour barrier characteristic, and high CO.sub.2 permeability, and made of CPP or BOPP film depending on the usage; an immersion rope (3) that is slim enough for holding the solution reservoir (1) and made of HDPE film; and a handgrip (4) connected to the immersion rope (3) that facilitates holding and using the test kit (10).

[0033] The test kit (10) according to the invention is hanged down the expansion tank or water radiator such that the solution reservoir (1) would contact the cooling water, and then the cover is closed. In order to prevent the radiator cover from affecting impermeability while driving the vehicle, the immersion rope (3) is made of high strength HDPE film. The test kit (10) according to the invention may be used optionally for both instantaneous and long term measurements. For instant measurements, the test kit (10) with solution reservoir (1) made of CPP film is used. For long term measurements such as periodic maintenance & control, the test kit (10) with solution reservoir (1) made of BOPP film which has higher water—vapour barrier feature is used.

[0034] No combustion gas is found in the coolant when water cooled internal combustion engines or internal burst engines operate properly. In case of a leak, the combustion gases mix into the coolant. Among these mixing gases, CO.sub.2 has acidic characteristic. The CO.sub.2 gas in the liquid can be determined by a pH indicator. General operating principle of the invention is as described above. The most fundamental characteristic of this structure is to provide a practical and low cost complete test kit (10) to the consumer, which is able to detect motor malfunctions.

[0035] The above said test kit (10) can be placed fixedly optionally on expansion tank return hose or expansion tank inlet hose so that it can directly be seen when the hood is opened. This fixed structure works as a warning system for users as soon as they open the hood.

[0036] If the combustion chamber leaks in vehicle engines are wanted to be observed constantly, the expansion tank return hose or the expansion tank inlet hose is cut and then the transparent flow reservoir (7) shown in FIG. 2 is connected to the cut part. The transparent flow reservoir (7) forms a structure which can detect leaks continuously with the flow inlet slot (5), flow outlet slot (6), and the solution reservoir (1) made of BOPP film placed in the transparent flow reservoir, and the pH indicator solution (2) found in the solution reservoir (1).