HIGH-PRESSURE COMPRESSOR COMPONENTS AND THEIR MANUFACTURING METHODS
Patent Information
- Application Number
- TR202612117
- Authority / Receiving Office
- TR · TR
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2026-07-21
- Publication Date
- 2026-09-21
Smart Images
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Abstract
Description
1 TARIFF HIGH PRESSURE COMPRESSOR COMPONENTS AND THEIR MANUFACTURING METHOD TECHNICAL FIELD The invention is a multi-stage system used to bring gases to high pressure levels. It is related to reciprocating compressors. PREVIOUS TECHNIQUE High-pressure piston compressors compress gases in stages to achieve high pressure. These are systems that enable the attainment of certain pressure levels. In these types of compressors, compression... In order to withstand the mechanical loads and temperature increase that occur during the process, 15 Various body, cover, piston, lubrication and flow components are used. Components are generally produced using casting, forging, and machining methods. subsequently obtaining the necessary surfaces, channels, connection areas and tolerances Additional processing operations are applied for this purpose. In current manufacturing methods, mold structure, core usage, tool access, machining direction, and Due to production limitations such as minimum wall thickness, the internal geometries of the components are not as desired. It cannot be formed in this way. Especially in narrow, sloping, continuous or complex flows and Creating cooling ducts is becoming difficult, even in non-load-bearing areas. More materials may be needed and the components may be larger or heavier than necessary. 25 It can be designed. In addition, there is a need for multi-part production and subsequent assembly. Sealing, assembly, and tolerance management are complicated, and high pressure is required during machining. a significant amount of material is lost, and low-cost solutions are customized according to different operating conditions. The cost of mass production is increasing. In conclusion, all the problems mentioned above necessitate an innovation in the relevant technical field. It has made it mandatory. A BRIEF DESCRIPTION OF THE INVENTION 35 2 The present invention aims to eliminate the aforementioned disadvantages and contribute to the relevant technical field. To bring new advantages, the manufacture of a compressor and compressor components. It relates to a method of implementation. One aim of the invention is to produce compressor components using 5 different methods than traditional manufacturing methods. By reducing the resulting design and processing constraints, more precise, flexible and low material The goal is to develop a method that enables manufacturing with minimal loss. Another purpose of the invention is to improve flow, cooling, lubrication, and load-bearing capacity in compressor components. A structure that improves the performance and durability of the compressor by enhancing its properties. 10 to reveal. All the purposes mentioned above and those that will emerge from the detailed explanation below. The present invention aims to achieve this by using oil in a high-pressure piston compressor. 15 that enables the pump to be shut off and the flow to be restricted in the oil pump area. a rear cover of an oil pump sealing the opening on the flywheel side of the compressor and a flywheel side cover that provides support to the bearing area, oil an oil filling funnel that allows the oil to be filled into the compressor housing, the first of the gas A first-stage piston enables the gas to be compressed in the compression stage, while the gas in the second stage... a second-stage piston that enables compression in the compression stage, the first 20 a first-stage cylinder that limits the flow and compression volume in the compression stage its cover, a second one that limits the flow and compression volume in the second compression stage. stage cylinder head, linear movement of the piston in the third compression stage a cylinder that guides and circumferentially limits the compression volume, and the drive a third stage that transmits the motion it receives from the mechanism to the third compression stage 25 It relates to a method for manufacturing crosshead pistons. Accordingly, its innovation is... The mentioned oil pump rear cover, flywheel side cover, oil filler funnel, first stage piston, second stage piston, first stage cylinder head, second stage cylinder the cylinder head, cylinder and third-stage crosshead piston, at least one of which is Direct Metal It involves the manufacturing step using the Laser Sintering (DMLS) method. Thus, 30 geometric features resulting from mold, core and tool access of traditional manufacturing methods By reducing the limitations, complex internal geometries and regional wall thickness variations can be considered. It is possible to create it on the component. The characteristic of a possible configuration of the invention is the aforementioned oil pump rear cover, flywheel 35 side cover, oil filler funnel, first stage piston, second stage piston, first stage cylinder head, second stage cylinder head, cylinder and third stage crosshead 3 the step of manufacturing the entire piston directly using the metal laser sintering method It includes. Thus, flow, cooling, in all of the specified components of the compressor. production limitations of geometries suitable for lubrication, sealing and load-bearing functions It is created without being bound by anything. A characteristic feature of a possible design of the invention is the aforementioned first-stage cylinder head. During manufacturing using the direct metal laser sintering method, multiple air flows the channel runs seamlessly on the cylinder head body and is one piece with the cylinder head. It includes the step of creating it in this form. A feature of a possible design of the invention is the aforementioned second-stage cylinder head. During manufacturing using the direct metal laser sintering method, multiple air flows the channel is continuous and one-piece with the cylinder head body It includes the step of creating it in this form. The characteristic feature of a possible configuration of the invention is the aforementioned first-stage piston and second-stage piston. at least one of the stage pistons must be manufactured using the direct metal laser sintering method. during this process, at least one part of which extends perpendicular to the piston's direction of movement This involves creating an oil transfer hole within the piston body. Thus, While ensuring the transfer of oil between the relevant parts of the piston, it is difficult to apply it later. 20 The need for drilling and machining operations is reduced. The invention also involves compressing gas in successive compression stages to produce high-pressure gas. with a multi-stage piston compressor that enables it to be made suitable for filling. It is related. Accordingly, the innovation is that at least one of them is a direct metal laser sintering product; oil 25 an oil pump rear cover that enables the pump to be shut off, compressor flywheel a The flywheel side cap is an oil filler that allows oil to be filled into the compressor housing. the funnel is a first stage that allows the gas to be compressed in the first compression stage. The piston is a second stage that allows the gas to be compressed in the second compression stage. a piston, a first stage that limits the compression volume in the first compression stage the cylinder head, a second compression stage that limits the compression volume in the second compression stage. The cylinder head guides the piston movement in the third compression stage. a cylinder that drives the movement and a third cylinder that transmits the drive motion to the third compression stage. The stage includes a crosshead piston. 35 4 A feature of a possible design of the invention is that the aforementioned oil pump rear cover, with at least one cooling groove in the form of an indentation located on the flanged surface It must contain at least one valve seat located within the cooling cavity. A characteristic feature of a possible configuration of the invention is that the aforementioned first-stage piston, 5 around it at least one piston ring groove and at least partially in the direction of the piston's movement. It must contain at least one oil transfer hole extending vertically. A feature of a possible design of the invention is that the aforementioned second-stage piston, around it at least one piston ring groove and at least a portion of it 10 inches in the direction of piston movement. It must contain at least one oil transfer hole extending vertically. BRIEF DESCRIPTION OF THE FIGURES Figure 1 shows a representative front view of the oil pump rear cover. 15 Figure 2 shows a representative rear view of the oil pump rear cover. Figure 3 shows a representative front view of the flywheel side cover. Figure 4 shows a representative rear view of the flywheel side cover. Figure 5 shows a representative preliminary view of the oil filling funnel. Figure 6 shows a representative cross-sectional view of the oil filling funnel. 25 Figure 7 shows a representative view of the first-stage piston. Figure 8 shows another representative view of the first-stage piston. Figure 9 shows a representative view of the second-stage piston. Figure 10 shows a representative cross-sectional view of the second-stage piston. Figure 11 shows a representative top view of the first-stage cylinder head. 35 Figure 12 shows a representative bottom view of the first-stage cylinder head. Figure 13 shows a representative top view of the second-stage cylinder head. Figure 14 shows a representative bottom view of the second-stage cylinder head. Figure 15 shows a representative view of the cylinder. Figure 16 shows a representative view of the third-stage crosshead piston. DETAILED DESCRIPTION OF THE INVENTION 10 This detailed explanation of the invention does not merely aim to improve understanding of the subject matter; it does not contain any other information. This is explained with examples that will not create a limiting effect. The compressor described in this invention compresses a gas in successive compression stages to 300 bar. a multi-stage piston-driven high-pressure system that allows the pressure to rise to a certain level It is a compressor. The compressor in question is especially suitable for high-capacity applications of gases such as air, nitrogen, and the like. It is used for storage under pressure or for filling into cylinders. In the compressor, the compression process is carried out in multiple stages, each In this structure, the gas volume is reduced in stages, and the pressure is gradually increased. In addition to piston and cylinder groups that perform the compression function, the gas directing, circulating oil, supporting moving parts and compressing various compressor components that enable the removal of heat generated during the process According to the invention, at least one of the aforementioned components is a Direct Metal Laser. It is produced using the sintering (DMLS) method. 25 The compressor encloses the section containing the oil pump and reduces the oil pump's operating volume. It includes an oil pump rear cover (10) that separates it from the external environment. Oil pump rear The cover (10) limits the volume in which the rotating elements of the oil pump are located, and the oil It ensures that the flow is maintained within the flow path inside the cover and the connection surfaces are 30 It is connected to the compressor housing via a cover. The aforementioned cover is used for filtering the oil, the direction of flow, the positioning of valves, and the processes that occur during operation It contains geometric regions suitable for dissipating heat through the lid. Thanks to manufacturing via direct metal laser sintering, the internal geometry of the lid is... Mold, core and tool access encountered in traditional casting and machining methods 35 It can be created without being bound by limitations. 6 The flywheel side cover (20) on the compressor is the opening on the flywheel side of the compressor. enclosing and circumferentially supporting the bearing area associated with the crankshaft. It provides. The aforementioned flywheel side cover (20) is centered on the crankshaft or bearing. It can have a transition zone associated with its elements and environmental connection parts. It can be connected to the compressor housing via the flywheel side cover (20), 5 The transfer of loads generated while the compressor is running to the housing and the related moving parts It acts as a sealing element to protect the components from the external environment. There is an oil filling funnel (30) for transferring the oil to the compressor. Oil The filling funnel (30) adds 10 oil from the outside environment to the oil volume inside the compressor. an inlet zone that ensures proper transfer and the oil volume between the aforementioned inlet zone. It includes a flow passage extending between them. The geometry of the oil filling funnel (30), The oil enters the compressor without accumulating in certain areas during the filling process. It is structured in a way that will allow it to progress. A compressor is a primary compressor that enables the gas to be compressed in the first compression stage. It contains a stage piston (40). The first stage piston (40) moves back and forth linearly. By doing so, it increases the pressure of the gas. On the outer circumference of the first stage piston (40), At least one piston ring groove (41) to restrict the passage of gas between the piston and the cylinder It is located. The aforementioned piston ring channel (41) is a sealing element for piston 20 It is a suitable nest form to be placed around it. The gas exiting the first compression stage is brought to a higher pressure level. For the purpose of conveying, the compressor includes a second stage piston (50). Second stage The piston (50) compresses the gas with a smaller volume compared to the first stage piston (40). This allows for re-compression in the second compression stage. The second stage sealing between the piston and the cylinder surface associated with the piston around the piston (50) There is at least one segment channel (51) for the purpose of providing. The first stage cylinder head (60) covers one end of the first compression stage. 30 and together with the first stage piston (40) it creates a compression volume. First Stage cylinder head (60), cover for removing the heat generated during compression. It contains at least one air flow channel (61) extending between two elevations on its body. The mentioned air flow channel (61) allows air to pass through the cylinder head and the head. It allows for cooling. Second stage cylinder head (70), second compression 35 It limits the compression volume of the first stage together with the second stage piston (50). The mentioned second stage cylinder head (70) is used to dissipate the heat generated during compression. 7 At least one air gap extending between two raised sections on the cover body for removal. It includes streaming channels (71). The compressor also includes a cylinder (80) used in the third compression stage. The cylinder mentioned (80) is the linear 5 of the piston working in the third compression stage. an internal surface that directs its movement and circumferentially limits the compression volume has. The third stage crosshead piston (90) receives the third stage of motion from the drive mechanism. This ensures that it is transferred to the compression stage. The aforementioned third stage is crosshead 10. The piston (90) has a housing structure that transmits linear motion and the compressor's movement motion transmission between the transmission group and the third-stage clamping elements It is positioned in a way that will provide this. Of the components mentioned above, namely the oil pump rear cover (10) and the flywheel side cover 15 (20), oil filling funnel (30), first stage piston (40), second stage piston (50), first first stage cylinder head (60), second stage cylinder head (70), cylinder (80) and third At least one of the stage crosshead pistons (90) is directly metal laser sintered (DMLS) It is manufactured using this method. In a preferred configuration, all of the aforementioned components are used. It is created using the method in question. Direct metal laser sintering 20 the method, the component's traditional casting mold, mold parting direction, core removal direction, and that allows creation without being bound by limitations such as cutting tool access It is a metal-based additive manufacturing method. In a feasible configuration, 25 are created directly using the metal laser sintering method. The components are made of AlSi10Mg based metal material. The material depends on the mechanical and thermal conditions to which the component is exposed during operation. Material properties are selected in terms of components directly exposed to pressure. The component's geometry and regional wall thicknesses are evaluated together, directly subjected to pressure. In areas not exposed to the virus, there are 30 measures to reduce unnecessary material use. Geometries can be applied. Thanks to the direct metal laser sintering method, traditional production methods Internal channels and angled transitions that are difficult to create due to mold, match and team access, Different wall thicknesses and radius surfaces can be applied to the part. This allows for 35 Flow channels can be extended more efficiently along the part, improving oil and air flow. It can be directed to the desired areas, sharp corners can be reduced, and only strength can be achieved. 8 Thicker sections are left where necessary, while the material used in other parts... The quantity can be reduced. The mentioned manufacturing method also allows for the separation of multiple parts. Instead of being produced as individual parts and then assembled, the functions provided by these parts are combined into a single unit. It allows components to be assembled on a single piece. This provides a connecting element. The number of areas used can be reduced, and 5% of the problems that may arise from the joining surfaces can be avoided. Leakage and tolerance issues can be limited. Additional processing operations are required. The required amount can also be reduced depending on the geometry of the part. As can be seen in Figures 1 and 2, the oil pump rear cover (10), a filter housing (11), a It includes a flanged surface (12) and at least one cooling recess (121). Filter housing (11), oil 10 installation of the filter element used for filtering the oil in the pump area It is a suitable volume. The flanged surface (12) is the oil pump rear cover (10) of the compressor. It enables connection to the adjacent body surface. On the flanged surface (12) Connection areas suitable for passing through or inserting fasteners It can be found. The cooling recess (121) is located inside the oil pump rear cover (10) 15 It is a geometric region created that increases the heat transfer surface of the lid. The aforementioned At least one valve seat (121.1) can be found inside the cooling cavity (121). The valve seat (121.1) is the valve cover on the compressor. This allows for its positioning. The cooling cavity (121) extends inwards. Thanks to its structure, the valve seat (121.1) will not interfere with moving components. It can be positioned and provides a larger heat transfer surface in the relevant area of the lid. can be created. In traditional casting methods, mold and core limitations prevent this type of inward extension. 25 grooves, valve seats (121.1) and thin section areas on the same part It is becoming more difficult to create. However, cooling is required with the direct metal laser sintering method. recess (121), valve seat (121.1) and regional wall thickness variations oil pump rear It can be made in one piece on the cover (10). The load on the flywheel side cover (20) (figure 3-4), excluding the bearing and connection areas, is 30 Material reduction can be implemented in areas that do not carry materials. These areas are entirely... Instead of being created as a solid surface, thin supports with gaps between them It can be connected to the peripheral and central parts by its arms. The flywheel side mentioned the parts containing the central bearing area and connecting elements on the cover (20) While the load-bearing intermediate regions are constructed with a higher cross-section, the intermediate regions are constructed with a thinner cross-section. 35 It can be arranged in this way. In this way, the necessary mechanical integrity of the lid is preserved. The total weight of the component and the amount of material used are reduced. The surface of the part 9 Increasing the area also allows the heat generated during operation to be transferred to the environment. It makes things easier. The inner surface of the oil filling funnel (30) (figure 5-6) is the oil inlet from the oil inside the compressor. It has a continuously descending slope towards its volume. This slope refers to the oil funnel 5 It prevents the accumulation of oil in certain corners or flat surfaces and distributes it evenly. The suction effect causes it to move towards the exit region. The narrowing of the funnel and Transitions between expanding regions are curved to reduce abrupt changes in cross-section. It was created as such. Wall thickness, connection and load bearing in the expanding areas of the oil filling funnel (30) It is determined to be lower compared to other regions. Thus, the temperature inside the funnel... The heat transfer distance between the oil and the external environment is reduced, and the funnel surface undergoes passive heat transfer. It can be used as a transfer surface. The internal transitions in the connection area are sharp. Creating it with curved surfaces instead of corners, 15 and reduces local flow losses. In the internal volume of the first stage piston (40) (figure 7-8), the compression acting on the piston roof Support structures that transfer the loads to the peripheral body may be present. The piston's load The piston can be lightened by reducing the amount of material in the non-load-bearing inner regions. Load 20 In the areas carrying the piston, sufficient materials and support structures are left to allow the piston roof and The strength of the piston body is maintained. The support structures are bonded to the piston wall. The use of curved transitions in these areas may cause problems under cyclic loads. It reduces regional stress concentrations. On the first stage piston (40) The piston ring channel (41) holds the ring around the piston and compresses the gas between the piston and the ring. It ensures that the passage between the cylinders is restricted. Direct metal laser. Thanks to the use of the sintering method, the segment channels (41) can be made without conventional machining. Depending on the methods used, they can be created with thinner or deeper cross-sections. The first stage piston (40) also contains at least one oil transfer hole (42). The aforementioned 30 oil transfer hole (42), oil between different parts of the piston and with oil during operation It creates a passage that allows the transfer of water vapor that can be carried together. The second stage piston (50) (figure 9-10) has a smaller diameter than the first stage piston (40) and It can have a longer body structure. The inner walls of the aforementioned piston contain 35 Support structures that limit deformations that may occur under high pressure. Support structures can be located in molds or cores in traditional casting methods. It can be positioned in deep areas that are difficult to access. The piston's different The thickness of the walls in these regions, taking into account the loads to which the relevant regions are subjected. They can be determined differently from each other. The ring groove (51) of the second stage piston (50) also carries the compressed gas between the piston and cylinder 5 It ensures the placement of at least one segment that restricts the passage between them. The width, depth and distance of the piston ring channel (51) from the adjacent piston surfaces, according to the pressure and sealing conditions in the second compression stage It can be edited. There is also an oil transfer hole (52) on the second stage piston (50), the oil mentioned The transfer hole (52) ensures that the oil is delivered to the relevant surfaces along the piston. The aforementioned oil transfer hole (52) extends perpendicular to the direction of piston movement. The described method allows for the creation of oil transfer holes during piston construction. The fact that it can be produced makes drilling and chip removal, which are difficult to implement later, possible. 15 The need for these procedures is being reduced. In the first stage cylinder head (60) (figure 11-12), the heat generated during compression Air flow channels extending along the lid body for removal (61) It is located. Thanks to the described method, the mentioned air flow channels (61) 20 The number of channels has been increased and the angle between adjacent channels has been reduced. Minimum angle and number of channels, taking into account the distribution of airflow to different areas of the cover. This was determined as a result of the flow analyses performed. The existing structures have intermittent air flow. flow channels (61), by removing the obstruction parts between the channels, along the cover It is arranged to extend continuously. Furthermore, the canal structure consists of 25 The number of pieces has been reduced and the thickness of the plates in which air flow channels (61) are located It has been lowered. With this design, the cooling air passing through the cover is wider. It is made to come into contact with a surface. In the second stage cylinder head (70) (figure 13-14) 30 occurs during compression. There are numerous air flow channels (71) for heat removal. Second compression Due to the greater temperature increase in the stage, the air flow channels (71), cover It is arranged to have a denser population. The mentioned air the uninterrupted extension of the stream channels (71) increasing the number of channels and channels By reducing the angle between them, the surface of the cover in contact with the cooling air is 35° is increased. Curved transitions in the regions where the air flow channels (71) change direction. 11 It can be formed and compressed thanks to thin-section plates containing channels. This facilitates the transfer of heat generated during the process to the airflow. Cylinder (80) associated with the third compression stage (figure 15), direct metal laser When formed by sintering method, the cylinder (80) has load-bearing and connecting parts. These sections can be arranged so that they have different wall thicknesses compared to other sections. The inner surface of the cylinder (80) has the geometric accuracy to guide the third stage piston. is being created and, if necessary, manufactured to achieve the final surface properties. It can then undergo surface treatment. The third stage crosshead piston (90) (figure 16) is also based on the load transfer zones. It can be formed in regionally different cross-sections. The connection through which the driving force is transmitted. Higher cross-sections are left in these areas, while the amount of material in the non-load-bearing sections is reduced. This can be reduced. Thus, the moving mass of the third stage crosshead piston (90) are reduced and the inertial forces generated during the propulsion process are 15 It is being restricted. According to all these described configurations, the different components of the compressor are directly connected to the metal laser. They are formed using the sintering (DMLS) method, and the geometry of each component is specific to that of the respective component. The flow is regulated according to cooling, lubrication, sealing, and load-bearing functions. 20 Creating continuous flow passages allows the oil to reach specific outlet areas. redirection, reduction of wall thickness in areas where needed, and load-bearing Thanks to the support of the regions, the functional characteristics of compressor components are manufactured. It has been developed using this method. The scope of protection of the invention is specified in the claims attached hereto, and these details are strictly adhered to. The explanation cannot be limited to those given for illustrative purposes. Because a technically skilled person... the person, without deviating from the main theme of the invention, in light of what has been described above, similar It is clear that these structures can emerge. 12 REFERENCE NUMBERS GIVEN IN THE FIGURE Oil Pump Rear Cover 11 Filter Housings 12 Flanged Surface 5 121 Cooling Cavities 121.1 Valve Seat Flywheel Side Cover Oil Filling Funnel 40 First Stage Piston 41 Segment Channel 42 Oil Transfer Holes 15 50 Second Stage Pistons 51 Segment Channel 52 Oil Transfer Holes 60 First Stage Cylinder Head 61 Air Flow Ducts 70 Second Stage Cylinder Head 71 Air Flow Duct 25 80 Cylinders 90 Third Stage Crosshead Piston
Claims
13 REQUESTS 1. The invention describes the shut-off of an oil pump in a high-pressure reciprocating compressor and an oil pump back that restricts flow in the oil pump area the cover (10) should be closed, the opening on the flywheel side of the compressor and the relevant 5 a flywheel side cover (20) which provides support to the bearing area, an oil filling funnel that allows oil to be filled into the compressor housing (30), a first compression stage that enables the gas to be compressed. The stage piston (40) enables the gas to be compressed in the second compression stage. a second stage piston (50) compresses the volume of the first compression stage by 10 a first stage cylinder head (60) limiting the second compression a first stage and a second stage cylinder that limits the compression volume the linear movement of the piston in the third compression stage of the cover (70) a cylinder that guides and circumferentially limits the compression volume (80) and a third 15 that transmits the motion it receives from the drive mechanism to the compression stage. It is a method for manufacturing a stage crosshead piston (90); its characteristic is: mentioned oil pump rear cover (10), flywheel side cover (20), oil filler funnel (30), first stage piston (40), second stage piston (50), first stage cylinder head (60), second stage cylinder head (70), cylinder (80) and third At least one of the stage crosshead pistons (90) Direct Metal Laser 20 It involves the manufacturing step using the sintering (DMLS) method.
2. A method according to Claim 1, and its feature is; the rear cover of the oil pump mentioned (10), flywheel side cover (20), oil filling funnel (30), first stage piston (40), second Stage piston (50), first stage cylinder head (60), second stage cylinder head 25 (70), cylinder (80) and all of the third stage crosshead piston (90) This involves the step of manufacturing directly using a metal laser sintering method.
3. It is a method according to Claim 1, and its characteristic is that the first stage cylinder head mentioned above... (60) during the manufacture by direct metal laser sintering method, from one to 30 the excess air flow channel (61) is continuous on the cylinder head body and This involves the step of creating it as a single piece with the cylinder head.
4. It is a method according to Claim 1, and its characteristic is that the aforementioned second-stage cylinder head... (70) during the manufacture by direct metal laser sintering method, from one to 35 excess air flow channel (71) is uninterrupted inside the cylinder head body and This involves the step of creating it as a single piece with the cylinder head. 14 5. It is a method according to claim 1, and its feature is the first stage piston (40) mentioned and At least one of the second stage pistons (50) direct metal laser sintering During its manufacture using this method, at least a portion of it moves through the piston. piston body with at least one oil transfer hole extending perpendicular to the direction It includes the step of creating it within. 5 6. The invention involves compressing a gas in successive compression stages to create a high-pressure gas. a multi-stage piston compressor that enables it to be made suitable for filling and its characteristic is that at least one of them is a direct metal laser sintering product; oil an oil pump rear cover (10) which enables the pump to be switched off, 10 closing the opening on the flywheel side of the compressor and the bearing area a flywheel side cover (20) which provides support, oil to the compressor housing an oil filling funnel (30) that allows filling, the first compression of the gas a first stage piston (40) that enables the gas to be compressed in the second stage a second stage piston (50) which enables compression in the compression stage, 15 a first stage that limits the compression volume in the first compression stage cylinder head (60), limiting the compression volume in the second compression stage a second stage cylinder head (70), piston in the third compression stage a cylinder (80) that guides its movement and the drive movement of the third compression It includes a third stage crosshead piston (90) that transmits to the next stage. 20 7. It is a compressor according to claim 6, and its characteristic is that the aforementioned oil pump is located at the rear. at least one in the form of an indentation located on the flanged surface (12) of the cover (10) cooling cavity (121) and located within the mentioned cooling cavity (121) It must contain at least one valve seat (121.1). 25 8. It is a compressor according to claim 6, and its characteristic is that the aforementioned first-stage piston... (40), at least one piston ring groove around it (41) and at least part of the piston at least one oil transfer hole extending perpendicular to the direction of movement (42) It includes. 30 9. It is a compressor according to claim 6, and its characteristic is that the aforementioned second-stage piston... (50), at least one piston ring groove (51) around it and at least part of it on the piston at least one oil transfer hole extending perpendicular to the direction of movement (52) It includes. 35