The invention is related to an air conditioning compressor driving system with a hydro motor. That makes air conditioning system located in military land vehicles independent from vehicle's engine and also from engine belt and pulley system and thus enables the system to work as long as there is a hydraulic power. Besides, it also enables freedom of placement of the system anywhere in the vehicle, and allows thermodynamic cycle to be under control.

The invention is especially related to air conditioning compressor driving system comprising a hydro motor. When hydraulic power comes, shaft rotates in radial direction and that generates mechanical power, and transmits this to hydro motor pulley which is connected, to compressor's pulley and enables compressor to work. Main bracket contains hydro motor, compressor, belt, compressor pulley, hydro motor pulley and other elements and holds them together.

STATE OF THE ART

In parallel with improvement of technology, there has been great improvements also in military systems. Primary purposes of these improvements are to make military vehicle fast, convenient, useful, reliable and more comfortable. Today air conditioner systems of military vehicles are systems which work with the principle of vapor- compression cooling cycle and in general, are comprised of a compressor, a condenser, an expansion valve and an evaporator. Cooling fluid (coolant) in the system is transferred to the condenser with increasing pressure by means of the compressor. The coolant with high pressure and temperature undergoes a phase change at constant pressure while passing through the condenser and its temperature is reduced. Then, its pressure and temperature are reduced by passing through expansion valve. The coolant with reduced temperature and pressure is sent to evaporator for drawing heat from the medium, i.e. cooling down the medium. The ambient air passing through the coils of evaporator transmits its heat to cooling fluid inside the coils. Then, cooled air is re-sent to the medium. As a result, ambient air is cooled down. Cooling fluid in evaporator coils transferred to compressor to be compressed. Thus, cycle is completed. This cycle repeats as long as system works.

A mechanical power must be supplied to the compressor in order to operate air conditioning system. In most vehicle applications of air conditioning, mechanical power generator is vehicle's engine. Transmission of mechanical power to air conditioner's compressor is carried out by means of belt-pulley mechanism. In the belt-pulley mechanism, mechanical power from the vehicle's engine pulley is transmitted to compressor pulley with the help of the engine belt. There is a magnetic clutch between compressor pulley and compressor. When vehicle air conditioner is turned on, magnetic clutch is energized and clutch is activated. Thus, mechanical power in the compressor pulley is transmitted to pistons inside the air conditioner compressor. Pressurizing process is carried out in vapor-compression cooling cycle together with movement of the pistons inside the air conditioner compressor. When air conditioner system is deactivated, electrical energy going to magnetic clutch is cut off and clutch is deactivated. Thus, air conditioner compressor is stopped.

In the present technique, since air conditioner compressor is integrated onto vehicle's engine, it should be located in the engine area. Especially, the limited volume in the engine area may cause difficulties in terms of component placement.

In the present technique, in cases where it is required to remove power pack and take this outside the vehicle, it is needed to carry out long-lasting processes such as discharging the gas in the air conditioner system and removing components. After the power pack is re assemble to the vehicle, it is necessary to re-install the removed pieces, vacuum the system and then refill the refrigerant to AC system. This situation negatively affects service duration time and serviceability.

In the present technique, compressor pulley is locked in some compressor failure examples. And this situation causes engine belt to throw/burn/break. Usually alternators are driven with common belt and due to belt failure, they are also deactivated. This causes vehicle batteries not to be charged. In the case that vehicle's engine is stopped, discharged batteries will cause inability to press the starter again to start the engine.

In the present technique, there is a direct correlation between cooling capacity which air conditioner system provides, and mechanical power taken from the engine, also revolution of the air conditioner compressor. Depending on driver's input to throttle pedal while driving the vehicle, varying revolutions of the engine results in performance changes of air conditioning system. Therefore, in the scenarios where the need for cooling is high and vehicle's engine revolution is low (Example: idling), there is a situation of insufficient cooling performance. This situation may cause dissatisfaction of the user. Furthermore, in the situation where the need for cooling is low and vehicle's engine revolution is high, since the compressor rotates in higher speed than necessary, it may cause to take more power than necessary from the engine. Over cooling performance will also cause the system to make icing and also the compressor clutch to engage and disengage frequently.

In the present technique, during some military operations, it is required to stop vehicle's engine and to be deployed and rest in some region. When vehicle's engine is stopped, air conditioner system is deactivated. Due to the fact that air conditioner system is not working, especially in the military operations carried out in the temperatures above comfort conditions brings an operation limitation for the personnel inside the vehicle. Consequently, for the solution of the above-mentioned problems existing in the present technique, an engine independent, economical, useful, ergonomic and more functional air conditioning compressor driving system is defined. Insufficiencies and disadvantages of the present application requires improvements in this technical aspect.

AIM OF THE INVENTION

The present invention is related to an air conditioning compressor driving system with a hydro motor. System is developed to eliminate above-mentioned disadvantages and to bring new advantages to the relevant technical aspect, which makes air conditioner system located in military land vehicles independent from vehicle's engine and also from engine belt - pulley system. On the other hand, enables the system to work as long as there is a hydraulic power and gives a flexibility of placement of the system in vehicle.

The most important aim of the invention is to enable the air conditioning system to perform it's function in the situation of vehicle's engine is off, by using hydraulic power. Thus, during the operations or standby states where vehicle's engine does not work, whole cabin can be air-conditioned by means of hydraulic driven AC system. Hydraulic power can be provided with alternative ways such as auxiliary power unit, hydraulic power unit fed with external electric supply.

Another aim of the invention is to keep compressor revolution under control by means of hydro motor. The possibility of driving with the constant/controlled revolution provided by the hydraulic system ensures that the air conditioner performance is kept at the desired level. This situation may cause satisfaction of end user. Another aim of the invention is to enable alternator to function normally even in case of locking failures of compressor due to the engine belt failure risk is reduced by means of the invention.

Another aim of the invention is that air conditioner system is not affected by the removal/installation processes of the engine (power pack) since there is not a mechanical interface directly with the engine (gas discharging/vacuuming/filling, component removal, etc.) This situation shortens service duration times and facilitates serviceability.

Another aim of the invention is that the air conditioner compressor can be placed to any suitable area inside the vehicle. This ability provides advantages for placement of the engine compartment.

An air conditioning system with hydro motor driven compressor developed to realize all the aims which are mentioned above and which will emerge from the following detailed explanation;

System contains a hydro motor on which, after hydraulic power comes, shaft rotates in radial direction and generates mechanical power, and transmits this to hydro motor pulley, a hydro motor pulley driven by hydro motor connected compressor's pulley with a belt and it enables compressor to work, main bracket which contains hydro motor, compressor, belt, compressor pulley, hydro motor pulley and other elements on it and holds them together.

The structural and characteristic features and all advantages of the invention will be understood more clearly by means of the figures given below and the detailed description written by referring to these figures, and therefore the evaluation should be made by taking these figures and detailed description into consideration. FIGURES FOR UNDERSTANDING THE INVENTION

FIGURE -1; is a drawing showing air conditioning compressor driving system with hydro motor subject to the invention.

FIGURE -2; is a drawing showing air conditioning compressor driving system with hydro motor subject to the invention as being demounted.

FIGURE -3; is a drawing showing an alternative configuration of the air conditioner compressor driving system with hydraulic engine subject to the invention.

FIGURE -4; is a drawing showing an alternative configuration of the air conditioner compressor driving system with hydraulic engine subject to the invention as being demounted.

REFERENCE NUMBERS

10. Compressor 20. Hydro motor 30. Main Bracket 40. Auxiliary Front Lower Bracket

50. Auxiliary Back Lower Bracket 60. Vibration Damping Mount 70. Belt

80. Hydro motor Pulley 90. Compressor Pulley

100. Tensioner Pulley 110. Tension Adjustment Screw 120. Mounting Pin 130. Fastening Elements 140. C Bracket 150. Coupling

160. Compressor Shaft 170. Alternative Main Bracket

180. Alternative Lower Bracket 190. Bushing

DETAILED DESCRIPTION OF THE INVENTION

In this detailed description, preferred embodiments of the air conditioning compressor driving system with hydraulic engine are described for a better understanding of the subject.

In Figure - 1 and Figure - 2, an air conditioning compressor driving system with hydro motor is shown. Hydro motor Pulley (80) is connected on hydro motor (20) by fastening elements (130). This assembly is also mounted on main bracket (30) with fastening elements (130). Compressor (10) is placed on the main bracket (30) and fixed on it by fastening elements (130). In order to improve the stability and limit the deflection of the lower brackets, mounting pin (120) and C bracket (140) are fixed on main bracket (30) by fastening elements (130). Tensioner Pulley (100) is attached on main bracket assembly (130) and tension adjustment pin (110) is attached. The belt (70) is installed on drive-pulley system in order to transmit power from hydro motor pulley (80) to compressor pulley (90). After installation of the belt (70) by means of tension adjustment screw (110) the tensioner pulley (100) is adjusted to get an ideal tension. Vibration mounts are placed under main bracket (30) and temporarily attached by fasteners (130). Auxiliary front lower bracket (40) is placed under the vibration damping mounts (60). Temporarily attached vibration damper mounts (60) are fixed by fasteners. This assembly is attached to auxiliary lower rear bracket (50) and fixed with fasteners. This result assembly is then installed on related mounting provisions in vehicle. The whole installation is completed after installation of other air conditioning system components.

By completion of installation now it's possible to transfer the mechanical power from hydro motor (20) and hydro motor pulley (80) to compressor pulley 90). When vehicle air condition system is on, hydraulic power can be transferred to hydro motor. The hydraulic power rotates the hydro motor (20) shaft radially. There is a magnetic clutch btw compressor pulley (90) and compressor (10). This clutch is energized and activated when air condition system is on. Thus, mechanical power transferred via drive-belt system from hydro motor (20) to compressor (10) and its pistons. By means of piston's movement inside the compressor, pressurizing process is carried out with vapor- compression cooling cycle.

When vehicle air conditioning system is turned off, the magnetic clutch is disengaged and also hydraulic power to hydro motor is cut off. And thus, compressor and hydro motor is stopped.

In Figure - 3 and Figure - 4, an alternative configuration of the air conditioning compressor driving system with hydro motor subject to the invention is shown. Herein, air conditioning compressor (10) is driven by a hydro motor (20) as in the first invention. However, transmitting mechanical power from hydro motor (20) to compressor (10) is ensured by means of a coupling (150) mechanism. Herein, coupling (150) transmits the power taken from hydro motor (20) to compressor (10) and it is capable of tolerating angular and distance misalignments. It may work within the allowed offset tolerances.

Compressor pulley (90) on the compressor (10) is removed and compressor shaft (160) is dismounted. Bushing (190) is attached to the compressor shaft (160). Coupling (150) is placed on the same bushing (190) and mechanical connection is completed. This compressor assembly is placed on alternative main bracket (170). It is secured by means of the fastening elements (130). Hydro motor (20) is fixed on the alternative main bracket (170) to the free side of the coupling (150) and then, it is mounted and fixed by fastening elements (130). Vibration damping mounts (60) are placed under the alternative main bracket (170) and attached temporarily with the fastening elements (130). Alternative lower bracket (180) is placed on the lower surface of the vibration damping mounts (60) and again attached temporarily with the fastening elements (130). Herein, alternative lower bracket (180) enables the assembly connected on the alternative main bracket (170) to be connected to mounting provisions on the vehicle's body by fixing with vibration damping mounts (60). The fastening elements are fixed (130) on both surfaces of the vibration mounts (60) This final mounting assembly is installed on the mounting provisions on the vehicle and fixed with the fastening elements (130) and mounting is complete. By means of the completed mounting assembly, mechanical power in the hydro motor (20) is transmitted to the compressor (10) over the coupling (150) mechanism which is subject to the invention.

When vehicle air conditioner is started, hydraulic power is transmitted to the hydro motor (20). Hydraulic power enables hydro motor (20) shaft to turn in the radial axis. The power is transmitted, to the compressor (10) by mechanical power transfer between coupling (20), bushing (190) and compressor shaft (160), respectively. Transmitted mechanical power is enables the pistons to work inside the air conditioner compressor (10). Pressurizing process is carried out in vapor-compression cooling cycle with movement of the pistons inside the air conditioner compressor. When vehicle air conditioner is turned off, hydraulic power going to hydro motor (20) is cut off. Therefore, air conditioning compressor (10) and hydro motor (20) are stopped.

Protection scope of this application has been determined in the claims and it cannot be limited to those explained above for illustrative purposes. It is apparent that a person skilled in the art can introduce a novelty introduced in the invention by using similar configurations and/or apply this configuration in other fields with similar aims used in the relevant technique. Therefore, it is apparent that such configurations can be deprived of novelty and criteria regarding exceeding the state of art.