Oil-gas isolated booster cylinder

Abstract

This invention discloses an oil-gas isolated booster cylinder, comprising: a booster cylinder body; an oil reservoir body fixedly mounted on the booster cylinder body, the oil reservoir body being hollow to form an oil storage cavity; and an air intake unit fixedly mounted on the oil reservoir body, the air intake unit being connected to the oil storage cavity; wherein, the air intake unit includes an air intake block with an air intake port, and an exhaust pipe is provided inside the oil reservoir body, the first and last ends of the exhaust pipe being connected to the air intake port and the oil storage cavity respectively, and an exhaust valve unit is arranged inside the exhaust pipe; under the action of air pressure, the exhaust valve unit opens or closes the exhaust pipe. According to this invention, the exhaust problem of the booster is solved, avoiding the deterioration of the booster effect due to the mixing of hydraulic oil with gas, thus enabling the booster to maintain a good booster effect for a long time.

Description

Technical Field

[0001] This invention relates to the field of turbocharger technology. More specifically, this invention relates to an oil-gas isolated turbocharger cylinder. Background Technology

[0002] In the field of turbocharger technology, it is well known that turbochargers with different structural forms can achieve efficient air pressurization. In the process of researching and implementing efficient air pressurization, the inventors discovered that existing turbochargers have at least the following problems:

[0003] Existing turbochargers use a hydraulic oil-driven piston within the reservoir. Compressed air is used as a power source to push the piston, feeding hydraulic oil into the booster chamber of the booster cylinder. During the return stroke, the venting air is shut off, and a return spring within the reservoir pushes the piston back to its initial position. However, during operation, some air inevitably enters the hydraulic oil and accumulates in the reservoir. Existing turbochargers cannot expel this air, and when the amount of air in the reservoir reaches a certain level, it affects the turbocharger, reducing its boosting performance.

[0004] In view of this, it is necessary to develop an oil-gas isolated booster cylinder to solve the above problems. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the main purpose of this invention is to provide an oil-gas isolation type booster cylinder, which discharges the gas contained in the hydraulic oil in real time during the operation of the booster through the exhaust valve unit and exhaust pipeline, thus solving the problem of booster exhaust and avoiding the booster effect deterioration due to the hydraulic oil mixing with gas, so that the booster can have a good booster effect for a long time.

[0006] To achieve these and other advantages according to the present invention, an oil-gas isolation type booster cylinder is provided, comprising: a booster cylinder body;

[0007] An oil reservoir body, which is fixedly mounted on the booster cylinder body, and the interior of the oil reservoir body is hollow to form an oil storage cavity; and

[0008] An intake unit is fixedly installed on the oil reservoir body, and the intake unit is connected to the oil reservoir body;

[0009] The air intake unit includes an air intake block with an air intake port, and an exhaust pipe is provided in the oil storage cylinder. The first and last ends of the exhaust pipe are connected to the air intake port and the oil storage cavity, respectively, and an exhaust valve unit is arranged in the exhaust pipe.

[0010] Under the action of air pressure, the exhaust valve unit opens or closes the exhaust pipe.

[0011] Preferably, an installation cavity is provided in the middle region of the exhaust pipe, and the exhaust valve unit is arranged in the installation cavity;

[0012] The exhaust valve unit includes: an exhaust needle, which is movably disposed within the mounting cavity; and...

[0013] A first reset element is disposed between the exhaust needle and the bottom wall of the mounting cavity, and the first reset element is sleeved on the outer periphery of the exhaust needle.

[0014] Preferably, the first reset element is any one of a spring, an elastic sheet, or a bouncy ball.

[0015] Preferably, the oil storage cavity includes an oil storage chamber and a drive chamber that are sequentially connected along the axial direction of the oil storage cylinder.

[0016] The air intake unit further includes a connecting pipe, the two ends of which are respectively connected to the air intake and the drive chamber.

[0017] Preferably, a drive piston is provided in the drive chamber, and a second reset element is arranged between the drive piston and the side wall of the oil reservoir.

[0018] The second reset element is any one of a spring, an elastic sheet, or a bouncy ball.

[0019] Preferably, the booster cylinder body is hollow to form a booster cavity, the booster cavity including a pre-pressure drive cavity, a pre-pressure cavity, a booster cavity and a booster drive cavity that are connected sequentially along the axial direction;

[0020] The pre-compression chamber is connected to the oil storage chamber.

[0021] Preferably, the booster cylinder body is further provided with a first connecting hole, a second connecting hole and a third connecting hole;

[0022] The first connecting hole is connected to the pre-pressure driving cavity, the second connecting hole is connected to the pressurization cavity, and the third connecting hole is connected to the pressurization driving cavity.

[0023] Preferably, it further includes: a first piston unit movably arranged within the preload drive chamber; and

[0024] The second piston unit is movably arranged within the pressurization drive chamber;

[0025] The first piston unit includes: a first piston rod disposed within the preload drive chamber; and

[0026] The first piston is movably arranged in the pre-pressure drive chamber, and the first piston is fixedly connected to one end of the first piston rod.

[0027] The second piston unit includes: a second piston rod disposed within the pressurization chamber; and...

[0028] The second piston is movably arranged in the pressurization drive chamber, and the second piston is fixedly connected to one end of the second piston rod.

[0029] Preferably, the other end of the second piston rod extends axially into the pre-compression chamber, and a sealing ring is fitted around the outer periphery of the second piston rod located in the pre-compression chamber.

[0030] Preferably, an oil pressure gauge is installed on the booster cylinder.

[0031] One of the above technical solutions has the following advantages or beneficial effects: The present invention provides an oil-gas isolation type booster cylinder, which discharges the gas contained in the hydraulic oil in real time during the operation of the booster through the exhaust valve unit and exhaust pipeline, thus solving the problem of booster exhaust and avoiding the booster effect from deterioration due to gas mixed in the hydraulic oil, so that the booster has a good booster effect for a long time.

[0032] Other advantages, objectives and features of the present invention will become apparent in part from the following description, and in part from those skilled in the art through study and practice of the invention. Attached Figure Description

[0033] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below. Obviously, the drawings described below only relate to some embodiments of the present invention and are not intended to limit the present invention, wherein:

[0034] Figure 1 A three-dimensional structural view of an oil-gas isolation type booster cylinder according to an embodiment of the present invention;

[0035] Figure 2 This is a three-dimensional structural view of an oil-gas isolation type booster cylinder according to an embodiment of the present invention from another perspective;

[0036] Figure 3 This is a top view of an oil-gas isolated booster cylinder according to an embodiment of the present invention;

[0037] Figure 4 for Figure 3 A cross-sectional view along the AA direction;

[0038] Figure 5 for Figure 4 A magnified view of a portion of the image;

[0039] Figure 6 for Figure 3 A cross-sectional view along the BB direction;

[0040] Figure 7 A rear view of an oil-gas isolated booster cylinder according to an embodiment of the present invention;

[0041] Figure 8 for Figure 7 A cross-sectional view along the CC direction.

[0042] Explanation of reference numerals in the attached figures:

[0043] 100. Supercharger

[0044] 110. Boost cylinder block; 111. Pre-pressure drive chamber; 112. Pre-pressure chamber; 113. Boost chamber; 114. Boost drive chamber; 115. First connecting hole; 116. Second connecting hole; 117. Third connecting hole;

[0045] 120. Oil reservoir body; 121. Oil reservoir chamber; 122. Drive chamber; 123. Exhaust pipe;

[0046] 130. Intake unit; 131. Intake block; 1311. Intake port; 132. Connecting pipe;

[0047] 140. Exhaust valve unit; 141. Exhaust needle; 142. First reset element; 143. Seal;

[0048] 150. Drive piston;

[0049] 160. Second reset element;

[0050] 170. First piston unit; 171. First piston rod; 172. First piston;

[0051] 180. Second piston unit; 181. Second piston rod; 182. Second piston;

[0052] 190. Hydraulic gauge. Detailed Implementation

[0053] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0054] In the accompanying drawings, shapes and dimensions may be enlarged for clarity, and the same reference numerals will be used in all figures to indicate the same or similar parts.

[0055] Unless otherwise defined, the technical or scientific terms used herein should have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms “first,” “second,” and similar terms used in this patent application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms “an,” “a,” or “the,” and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms “comprising,” “including,” and similar terms mean that the elements or objects preceding “comprising” or “including” encompass the elements or objects listed following “comprising” or “including” and their equivalents, but do not exclude other elements or objects. The terms “upper,” “lower,” “left,” and “right,” etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0056] In the following description, terms such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, and lower are defined relative to the structure shown in the accompanying drawings. In particular, "height" corresponds to the dimension from top to bottom, "width" corresponds to the dimension from left to right, and "depth" corresponds to the dimension from front to back. These are relative concepts and may vary depending on their location and usage. Therefore, these or other orientations should not be interpreted as restrictive terms.

[0057] Terms involving attachment, connection, etc. (e.g., “connection” and “attachment”) refer to the relationship in which these structures are directly or indirectly fixed or attached to each other through an intermediate structure, and to the relationship of movable or rigid attachment, unless otherwise explicitly stated.

[0058] According to one embodiment of the present invention, Figures 1-8 As shown in the diagram, the oil-gas isolated type booster cylinder 100 includes: a booster cylinder body 110;

[0059] An oil reservoir 120 is fixedly mounted on the booster cylinder 110, and the interior of the oil reservoir 120 is hollow to form an oil reservoir cavity; and

[0060] An intake unit 130 is fixedly installed on the oil reservoir 120, and the intake unit 130 is connected to the oil reservoir.

[0061] The air intake unit 130 includes an air intake block 131, an air intake port 1311 is provided on the air intake block 131, an exhaust pipe 123 is provided in the oil storage cylinder 120, the first and last ends of the exhaust pipe 123 are respectively connected to the air intake port 1311 and the oil storage cavity, and an exhaust valve unit 140 is arranged in the exhaust pipe 123.

[0062] Under the action of air pressure, the exhaust valve unit 140 opens or closes the exhaust pipe 123.

[0063] In a preferred embodiment of the present invention, the air inlet 1311 is connected to an external air source device.

[0064] Understandably, during prolonged use, some air inevitably enters the hydraulic oil and accumulates in the reservoir. When the amount of air in the reservoir reaches a certain level, it will affect the booster and reduce its boosting effect.

[0065] The present invention provides an oil-gas isolated booster cylinder 100. When the air intake port 1311 drives the hydraulic oil to be delivered into the booster cylinder body 110, the air simultaneously acts on the exhaust valve unit 140, so that the exhaust valve unit 140 closes the exhaust pipe 123 to prevent air from entering the hydraulic oil through the exhaust pipe 123, and at the same time prevents the hydraulic oil from overflowing from the exhaust pipe 123.

[0066] When the turbocharger 100 is in the return position, the exhaust valve unit 140 opens the exhaust pipe 123, and the air in the oil reservoir can be discharged from the exhaust pipe 123, which prevents the turbocharger from being affected by the hydraulic oil mixed with gas, so that the turbocharger can maintain a good boost effect for a long time.

[0067] Furthermore, an installation cavity is provided in the middle region of the exhaust pipe 123, and the exhaust valve unit 140 is arranged in the installation cavity;

[0068] The exhaust valve unit 140 includes: an exhaust needle 141, which is movably disposed within the mounting cavity; and...

[0069] A first reset element 142 is disposed between the exhaust needle 141 and the bottom wall of the mounting cavity, and the first reset element 142 is sleeved on the outer periphery of the exhaust needle 141.

[0070] In a preferred embodiment of the present invention, the exhaust valve unit 140 further includes a seal 143, which is disposed in the bottom region of the mounting cavity.

[0071] Understandably, when the air intake port 1311 drives the hydraulic oil to be delivered into the booster cylinder 110, the air simultaneously acts on the exhaust needle 141 to compress the first reset element 142. The exhaust needle cooperates with the seal 143 to keep the exhaust pipe 123 in a closed state, preventing air from entering the hydraulic oil through the exhaust pipe 123, and at the same time preventing the hydraulic oil from overflowing from the exhaust pipe 123.

[0072] When the turbocharger 100 is in the return position, the exhaust needle 141 is reset under the reset force of the first reset element 142 to open the exhaust pipe 123. The air in the oil reservoir can be discharged from the exhaust pipe 123, which avoids the turbocharger from being affected by the hydraulic oil mixing with gas, so that the turbocharger can maintain a good boost effect for a long time.

[0073] Furthermore, the first reset element 142 is any one of a spring, an elastic sheet, or a bouncy ball.

[0074] In one embodiment of the present invention, the first reset element 142 is a spring; in another embodiment of the present invention, the first reset element 142 is an elastic sheet; in yet another embodiment of the present invention, the first reset element 142 is an elastic ball.

[0075] Specifically, the selection of the first reset element 142 can be made by the staff according to the implementation situation.

[0076] In a preferred embodiment of the present invention, the first reset element 142 is a spring. Springs are inexpensive and readily available, which can effectively reduce costs.

[0077] It should be noted that the selection of the first reset element 142 is not limited to springs, elastic sheets or elastic balls to achieve the reset of the exhaust needle 141. Common reset elements, such as pneumatic support and hydraulic support, can also achieve the reset of the exhaust needle 141. Therefore, they should also be regarded as specific embodiments of this solution.

[0078] Furthermore, the oil storage cavity includes an oil storage chamber 121 and a drive chamber 122 that are sequentially connected along the axial direction of the oil storage cylinder 120.

[0079] The air intake unit 130 further includes a connecting pipe 132, the two ends of which are connected to the air intake 1311 and the drive chamber 122, respectively.

[0080] Furthermore, a drive piston 150 is provided in the drive chamber 122, and a second reset element 160 is arranged between the drive piston 150 and the side wall of the oil reservoir 121.

[0081] The second reset element 160 is any one of a spring, an elastic sheet, or a bouncy ball.

[0082] In one embodiment of the present invention, the second reset element 160 is a spring; in another embodiment of the present invention, the second reset element 160 is an elastic sheet; in yet another embodiment of the present invention, the second reset element 160 is a bouncy ball.

[0083] Specifically, the selection of the second reset element 160 can be made by the staff according to the implementation situation.

[0084] In a preferred embodiment of the present invention, the second reset element 160 is a spring. Springs are inexpensive and readily available, which can effectively reduce costs.

[0085] It should be noted that the selection of the second reset element 160 is not limited to springs, elastic sheets or elastic balls to achieve the reset of the drive piston 150. Common reset elements, such as pneumatic support and hydraulic support, can also achieve the reset of the drive piston 150. Therefore, they should also be regarded as specific embodiments of this solution.

[0086] Furthermore, the booster cylinder 110 is hollow to form a booster cavity, which includes a pre-pressure drive cavity 111, a pre-pressure cavity 112, a booster cavity 113 and a booster drive cavity 114 that are connected sequentially along the axial direction.

[0087] The pre-compression chamber 112 is connected to the oil storage chamber 121.

[0088] Furthermore, the booster cylinder body 110 is also provided with a first connecting hole 115, a second connecting hole 116 and a third connecting hole 117;

[0089] The first connecting hole 115 is connected to the pre-pressure driving cavity 111, the second connecting hole 116 is connected to the pressurization cavity 113, and the third connecting hole 117 is connected to the pressurization driving cavity 114.

[0090] In a preferred embodiment of the present invention, the first connecting hole 115, the second connecting hole 116 and the third connecting hole 117 are all connected to an external gas source device.

[0091] Furthermore, the booster 100 also includes: a first piston unit 170, which is movably arranged within the pre-pressure drive chamber 111; and

[0092] The second piston unit 180 is movably arranged within the pressurization drive chamber 114;

[0093] The first piston unit 170 includes: a first piston rod 171, which is disposed within the preload drive chamber 111; and

[0094] The first piston 172 is movably arranged in the pre-pressure drive chamber 111, and the first piston 172 is fixedly connected to one end of the first piston rod 171.

[0095] The second piston unit 180 includes: a second piston rod 181, which is disposed within the pressurization chamber 113; and...

[0096] The second piston 182 is movably arranged in the pressurization drive chamber 114, and the second piston 182 is fixedly connected to one end of the second piston rod 181.

[0097] Furthermore, the other end of the second piston rod 181 extends axially into the pre-compression chamber 112, and a sealing ring 183 is fitted around the outer periphery of the second piston rod 181 located in the pre-compression chamber 112.

[0098] Furthermore, an oil pressure gauge 190 is installed on the booster cylinder 110.

[0099] In summary, initially, the air source device provides compressed air to the pre-pressurization drive chamber 111 and the booster chamber 113 through the second connecting hole 116 and the third connecting hole 117, respectively, to drive the first piston 172 and the second piston 182 to move in direction A, so as to put the booster 100 in the return state. At this time, the air source device provides compressed air to the drive chamber 122 through the air inlet 1311, so as to control the drive piston 150 to move in direction B, so as to transport the hydraulic oil in the oil storage chamber 121 to the pre-pressurization chamber 112. The second reset element 160 is in the compressed state, and at the same time, the first piston 172 moves in direction B. The compressed air in the pre-pressurization drive chamber 111 is discharged from the third connecting hole 117. The booster 100 completes the pre-pressurization operation. At the same time, when the pre-pressurization air is inlet, the compressed air acts on the exhaust needle 141 to compress the first reset element 142. The exhaust needle cooperates with the seal 143 to make the exhaust pipe 123 in the closed state.

[0100] The air source device provides compressed air to the booster drive chamber 114 through the second connecting hole 116 to control the second piston 182 to move in direction B, so as to boost the air in the booster chamber 113. At the same time, the air in the booster chamber 113 is discharged from the second connecting hole 116, and the booster completes the boosting operation.

[0101] The air source device again provides compressed air to the pre-pressurized drive chamber 111 and the booster chamber 113 through the second connecting hole 116 and the third connecting hole 117, respectively, to drive the first piston 172 and the second piston 182 to move in direction A. At the same time, the drive piston 150 is reset under the reset force of the second reset element 160, and the exhaust needle 141 is reset under the reset force of the first reset element 142. The hydraulic oil in the pre-pressurized chamber 112 is returned to the oil storage chamber 121, and the gas in the oil storage chamber is directly discharged through the exhaust pipe 123. The booster 100 is back in the return state to complete one operation process.

[0102] The number of devices and processing scale described herein are for the purpose of simplifying the description of the invention. Applications, modifications, and variations of the invention will be readily apparent to those skilled in the art.

[0103] Although embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. It can be applied to various fields suitable for the present invention. Other modifications can be readily made by those skilled in the art. Therefore, without departing from the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details and examples shown and described herein.

Claims

1. An oil-gas isolated booster cylinder, characterized in that, include: Boost cylinder block (110); An oil storage cylinder (120) is fixedly installed on the booster cylinder (110), and the interior of the oil storage cylinder (120) is hollow to form an oil storage cavity; as well as An intake unit (130) is fixedly installed on the oil reservoir (120), and the intake unit (130) is connected to the oil reservoir. The air intake unit (130) includes an air intake block (131), an air intake port (1311) is provided on the air intake block (131), an exhaust pipe (123) is provided in the oil storage cylinder (120), the first and last ends of the exhaust pipe (123) are respectively connected to the air intake port (1311) and the oil storage cavity, and an exhaust valve unit (140) is arranged in the exhaust pipe (123). An installation cavity is provided in the middle region of the exhaust pipe (123), and the exhaust valve unit (140) is arranged in the installation cavity; The exhaust valve unit (140) includes: an exhaust needle (141) movably disposed within the mounting cavity; and A first reset element (142) is disposed between the exhaust pin (141) and the bottom wall of the mounting cavity, and the first reset element (142) is sleeved on the outer periphery of the exhaust pin (141). Under the action of air pressure, the exhaust valve unit (140) opens or closes the exhaust pipe (123); The booster cylinder (110) is equipped with an oil pressure gauge (190).

2. The oil-gas isolation type booster cylinder as described in claim 1, characterized in that, The first reset element (142) is any one of a spring, an elastic sheet, or a bouncy ball.

3. The oil-gas isolation type booster cylinder as described in claim 1, characterized in that, The oil storage cavity includes an oil storage chamber (121) and a drive chamber (122) that are sequentially connected along the axial direction of the oil storage cylinder (120). The air intake unit (130) further includes a connecting pipe (132), the two ends of which are connected to the air intake (1311) and the drive chamber (122), respectively.

4. The oil-gas isolation type booster cylinder as described in claim 3, characterized in that, A drive piston (150) is provided in the drive chamber (122), and a second reset element (160) is arranged between the drive piston (150) and the side wall of the oil reservoir (121). The second reset element (160) is any one of a spring, an elastic sheet, or a bouncy ball.

5. The oil-gas isolation type booster cylinder as described in claim 3, characterized in that, The booster cylinder (110) is hollow inside to form a booster cavity, which includes a pre-pressure drive cavity (111), a pre-pressure cavity (112), a booster cavity (113), and a booster drive cavity (114) that are connected in sequence along the axial direction. The pre-compression chamber (112) is connected to the oil storage chamber (121).

6. The oil-gas isolation type booster cylinder as described in claim 5, characterized in that, The booster cylinder (110) is also provided with a first connecting hole (115), a second connecting hole (116) and a third connecting hole (117); The first connecting hole (115) is connected to the pre-pressure driving cavity (111), the second connecting hole (116) is connected to the boosting cavity (113), and the third connecting hole (117) is connected to the boosting driving cavity (114).

7. The oil-gas isolation type booster cylinder as described in claim 5, characterized in that, Also includes: The first piston unit (170) is movably arranged within the pre-compression drive chamber (111); as well as The second piston unit (180) is movably arranged within the pressurization drive chamber (114); The first piston unit (170) includes: a first piston rod (171) disposed within the preload drive chamber (111); and The first piston (172) is movably arranged in the pre-pressure drive chamber (111), and the first piston (172) is fixedly connected to one end of the first piston rod (171). The second piston unit (180) includes: a second piston rod (181) disposed within the pressurization chamber (113); and The second piston (182) is movably arranged in the booster drive chamber (114), and the second piston (182) is fixedly connected to one end of the second piston rod (181).

8. The oil-gas isolation type booster cylinder as described in claim 7, characterized in that, The other end of the second piston rod (181) extends axially into the pre-compression chamber (112), and a sealing ring (183) is fitted around the outer periphery of the second piston rod (181) located in the pre-compression chamber (112).

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