Linear driven transfer unit

Abstract

The invention relates to a hydraulically driven transfer unit that is conditioned to high and low temperature values, allows fluids with wide viscosity ranges to be transferred to a system in the desired flow rate and pressure range with minimum heat loss.

Description

[0001] LINEAR DRIVEN TRANSFER UNIT

[0002] Technical Field

[0003] The invention relates to a hydraulically driven transfer unit used to transfer a fluid conditioned to the desired temperature in a reservoir to a system in a controlled manner by absorbing it from the reservoir.

[0004] The invention particularly relates to a hydraulically driven transfer unit that enables fluids with wide viscosity ranges, conditioned to high and low temperature values, to be transferred to a system in the desired flow rate and pressure range with minimum heat loss.

[0005] The State of Art

[0006] In industry, the most traditional and preferred way to transfer fluid from the reservoir to a system is to use pumps operating by rotating. Said pumps are designed and produced according to many different parameters such as temperature, viscosity and pressure.

[0007] In the present art, conventional pumps available in the industry are generally capable of operating in the viscosity range of 10-1600 cSt and temperature ranges of - 25 / + 110C. Therefore, in the present practice, there is no pump that can operate under the temperature range of -50 / +200‘C and the viscosi ty range of 3-2200 cSt. Besides, these pumps alone are insufficient to be used in a system, and the transferred fluid must be managed through valves and its instantaneous values must be kept under control with measurement instruments before being used in the system. Therefore, it is not possible to transfer the hydraulic oil conditioned to the desired temperature in the range of -50 / +200 'C to the system with low hea t transfer in the desired pressure and flow rate range with a conventional pumping system. Additionally, in applications requiring high operating temperature ranges, maintaining the target temperature is essential. Conventional pumps do not have any thermal insulation design. For this reason, there was a need to eliminate the problems experienced in the state of art. As a result, the existence of the above problems and the inadequacy of existing solutions required a development in the relevant technical field.

[0008] Object of the Invention

[0009] The present invention relates to a hydraulically driven transfer unit that eliminates the above-mentioned disadvantages and brings new advantages to the relevant technical field.

[0010] The main object of the invention is io provide a hydraulically driven transfer unit that can draw the fluid that conditioned to the desired value in the -50 / +200cC temperature range from an external reservoir and transfer it to the system by means of suitable sealing elements.

[0011] The object of the invention is to provide a hydraulically driven transfer unit that can suction by forming vacuum even in high viscosity ranges due to its linear structure and having much smaller radial clearance than a conventional rotary pump.

[0012] Another object of the invention is to provide a hydraulically driven transfer unit that is highly efficient and therefore forms a much lower thermal load during pumping by means of its linear structure and having much smaller radial clearance than a conventional rotary pump.

[0013] Another object of the invention is to provide a hydraulically driven transfer unit that can indirectly control the suction function from a reservoir and the function of transferring the conditioned fluid into the system by a valve group that uses the hydraulic power coming from a standard hydraulic unit.

[0014] Another object of the invention is to provide a hydraulically driven transfer unit that can manage the flow rate and pressure parameters of the fluid, which it transfers by means of a valve group that can be controlled by an external electronic control unit.

[0015] Another object of the invention is to present a hydraulically driven transfer unit, whose flow rate and pressure values can be read by the electronic control unit by means of the valve group, and which can be verified by measuring the flow rate and pressure values with the help of sensors on it. Another object of the invention is to present a hydraulically driven transfer unit that enables the fluid to be transferred to be kept at the target temperature with minimal heat loss by virtue of the fact that it consists of two separate chambers: the drive chamber, where the hydraulic power coming from a standard unit is managed and transmitted in the valve group, and the injection chamber, which has an additional insulation equipment, containing the fluid conditioned to the desired temperature.

[0016] Another object of the invention is to present a hydraulically driven transfer unit in which unwanted heat transfer is minimized by coating a teflon insulation element with a low heat conduction coefficient on the surfaces where the fluid will come into direct contact with the metal in the injection chamber containing the fluid conditioned to the target temperature.

[0017] Another object of the invention is to present a hydraulically driven transfer unit in which unwanted heat transfer between chambers is minimized by means of the transition parts between the two chambers, the drive chamber and the injection chamber, which is coated with special coatings that will reduce the heat conduction coefficient.

[0018] In order to fulfil all the objects that has been stated above and can be derived from the detailed description, the invention is a hydraulically driven transfer unit that enables fluids with wide viscosity ranges, conditioned to high and low temperature values, to be transferred to a system in the desired flow rate and pressure range with minimum heat loss, comprising the following: a drive chamber to which the hydraulic fluid coming from an external hydraulic power unit is sent,

[0019] - a valve group which is connected to said hydraulic power unit via the valve group port, takes the hydraulic fluid coming from the hydraulic power unit from the valve group port, directs it as desired and sends it to the drive chamber, and at the same time manages the flow rate and pressure values of the fluid, a drive piston that is located in the drive chamber and on which the hydraulic fluid , directed by the valve group acts to form force and movement, an injection chamber that is combined with the drive chamber in a sealed way and allows the conditioned hydraulic fluid to be absorbed from an external reservoir and pumped into the system, - an injection piston that is connected to the drive piston via a rod inside the injection chamber and as a result of the force transferred by the rod, moves to the left, forming a vacuum in the injection chamber and absorbing the fluid conditioned to the desired temperature in an external reservoir through the injection chamber suctionport and takes it into the injection chamber and at the same time, when it moves to the right as a result of the force transferred by the rod, forms pressure in the injection chamber and sends the fluid conditioned to the desired temperature in the injection chamber to the system through the injection chamber transfer port.

[0020] The structural and characteristic features and all the advantages of the invention will be understood more clearly by means of the figures given below and the detailed description written with references to these figures. For this reason, the evaluation needs to be made by taking these figures and detailed description into consideration.

[0021] Figures to Help Understand the Invention

[0022] Figure 1 : A schematic view of the hydraulically driven transfer unit, which is subject of the invention.

[0023] Description of Part References Detailed Description of the Invention

[0024] In this detailed description, the preferred alternatives of the hydraulically driven transfer unit, which is the subject of the invention, are described only for a better understanding of the subject and in a way that does not form any limiting effect.

[0025] In Figure 1 , it is given a schematic view of the hydraulically driven transfer unit, which is subject of the invention. According to this, the hydraulically driven unit comprises the following in it most basic form; a drive chamber (1 ) to which hydraulic fluid from an external hydraulic power unit is sent, a valve group (2) that is connected to said hydraulic power unit via the valve group port (3), takes the hydraulic fluid coming from the hydraulic power unit from the valve group port (3) and sends it to the drive chamber (1 ) by directing it as desired and at the same time allows the flow rate and pressure values of the fluid to be managed, a drive piston (4) that is located in the drive chamber (1 ) and on which the hydraulic fluid, directed by the valve group (2) acts to form force and movement, an injection chamber (5) that is combined with the drive chamber (1 ) in a sealed way and ensures that the conditioned hydraulic fluid is absorbed from an external reservoir and pumped into the system, an injection piston (6) that is connected to the drive piston (4) via a rod(7) inside the injection chamber (5) and as a result of the force transferred by the rod(7), moves to the left, forming a vacuum in the injection chamber (5) and absorbing the fluid conditioned to the desired temperature in an external reservoir through the injection chamber suction port (10) and takes it into the injection chamber (5) and at the same time, when it moves to the right as a result of the force transferred by the rod(7), forms pressure in the injection chamber (5) and sends the fluid conditioned to the desired temperature in the injection chamber (5) to the system through the injection chamber transfer port (11 ), an insulation element (8) that is located between the drive chamber (1 ) and the injection chamber (5) and at the same time on the surface of the injection piston (6) where it contacts the fluid, a composite insulation equipment (9) that is located on the outside of the injection chamber (5), a position sensor (12) that is located in the drive chamber (1 ), a temperature sensor (13) that is located in the injection chamber (5).

[0026] The hydraulically driven transfer unit, which is subject of the invention basically consists of two separate chambers: the drive chamber (1 ) and the injection chamber (5). The said drive chamber (1 ) has the principle of a double-acting hydraulic cylinder. The drive chamber (1 ) is fed by the valve group (2). The valve group (2) takes the hydraulic fluid sent from an external standard hydraulic power unit from the valve group port (3), directs it as desired and sends it to the drive chamber (1 ). The hydraulic power coming from the valve group (2) forms force and movement by acting on the drive piston (4) located in the drive chamber (1 ). The control of the movement and force produced is in the valve group (2), and said valve group (2) is managed electronically by an external control unit.

[0027] There is an injection piston (6) inside the injection chamber (5). The injection piston (6) is directly connected to the drive piston (4) via a rod (7). The said rod (7) transmits the movement and force generated in the drive piston (4) to the injection piston (6). The movement and force produced in the drive piston (4) is directly transmitted to the injection piston (6) via the rod (7). Control of the drive piston (4) means indirect control of the injection piston (6) by means of the rod (7).

[0028] The drive chamber (1 ) and the injection chamber (5) are hydraulically connected to each other in a sealed way. At the same time, there is an insulation element (8) in the joint parts of the drive chamber (1 ) and the injection chamber (5) to provide thermal insulation and minimize heat transfer. Besides, there is an insulation element (8) on the surface where the injection piston (6) comes into contact with the fluid to provide thermal insulation and minimize heat transfer.

[0029] Insulation equipment (9) is located on the outside of the injection chamber (5). The said insulation equipment (9) ensures that heat transfer is minimized by providing thermal insulation with the composite insulation materials it contains.

[0030] When the injection piston (6) moves to the left as a result of the force transferred by the rod (7), vacuum is formed in the injection chamber (5) and it absorbs the fluid conditioned to the desired temperature in an external reservoir through the injection chamber suction port (10) and takes it into the injection chamber (5). The said injection chamber suction port (10) is the port that allows the conditioned fluid to enter the injection chamber (5).

[0031] When the injection piston (6) moves to the right as a result of the force transferred by the rod (7), pressure is formed in the injection chamber (5) and the fluid conditioned to the desired temperature in the injection chamber (5) is transferred to the system through the injection chamber transfer port (1 1 ). ). The said injection chamber transfer port (1 1 ) is the port that allows the conditioned fluid to get out of the injection chamber (5) and to be transferred to the system.

[0032] The temperature of the conditioned fluid taken into the injection chamber (5) is measured with the temperature sensor (13) located in the injection chamber (5). At the same time, the position sensor (12) located in the drive chamber (1 ) continuously measures the position of the rod (7) and enables the position and speed of the drive piston (4) and injection piston (6) to be measured.

Claims

CLAIMS1. A hydraulically driven transfer unit that is conditioned to high and low temperature values and enables fluids with wide viscosity ranges to be transferred to a system in the desired flow rate and pressure range with minimum heat loss, characterized by comprising; the following a drive chamber (1 ) to which the hydraulic fluid from an external hydraulic power unit is sent,- a valve group (2) that is connected to said hydraulic power unit via the valve group port (3), takes the hydraulic fluid coming from the hydraulic power unit from the valve group port (3) and sends it to the drive chamber (1 ) by directing it as desired and at the same time allows the flow rate and pressure values of the fluid to be managed,- a drive piston (4) that is located in the drive chamber (1 ) and on which the hydraulic fluid , directed by the valve group (2) acts to form force and movement, an injection chamber (5) that is combined with the drive chamber (1 ) in a sealed way and ensures that the conditioned hydraulic fluid is absorbed from an external reservoir and pumped into the system,- an injection piston (6) that is connected to the drive piston (4) via a rod (7) inside the injection chamber (5) and as a result of the force transferred by the rod (7), moves to the left, forming a vacuum in the injection chamber (5) and absorbing the fluid conditioned to the desired temperature in an external reservoir through the injection chamber suction port (10) and takes it into the injection chamber (5) and at the same time, when it moves to the right as a result of the force transferred by the rod (7), forms pressure in the injection chamber (5) and sends the fluid conditioned to the desired temperature in the injection chamber (5) to the system through the injection chamber transfer port (11 ).

2. The hydraulically driven transfer unit according to claim 1 , characterized by comprising an insulating element (8) that is located between the said drive chamber (1 ) and the injection chamber (5) and ensures that heat transfer is minimized by providing thermal insulation in the joint parts of the drive chamber (1 ) and the injection chamber (5).

3. The hydraulically driven transfer unit according to claim 1 , characterized by comprising; an insulating element (8) that is located on the surface of the injection piston (6) that in contact with the fluid and provides thermal insulation, thus reducing heat transfer.

4. The hydraulically driven transfer unit according to claim 1 , characterized by comprising; an insulation equipment (9) that is located on the outside of the said injection chamber (5), provides thermal insulation and thereby reduces heat transfer.

5. The hydraulically driven transfer unit according to claim 1 , characterized by comprising; a position sensor (12) that is located in the said drive chamber (1 ) and enables the position and speed of the drive piston (4) and injection piston (6) to be measured by continuously measuring the position of the rod (7).

6. The hydraulically driven transfer unit according to claim 1 , characterized by comprising; a temperature sensor (13) that is located in the said injection chamber (5) and allows the temperature of the conditioned fluid taken into the injection chamber (5) to be measured.

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