WO2025100039A1 - エンジンオイル回路 - Google Patents

エンジンオイル回路 Download PDF

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Publication number
WO2025100039A1
WO2025100039A1 PCT/JP2024/030190 JP2024030190W WO2025100039A1 WO 2025100039 A1 WO2025100039 A1 WO 2025100039A1 JP 2024030190 W JP2024030190 W JP 2024030190W WO 2025100039 A1 WO2025100039 A1 WO 2025100039A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
engine oil
passage
filter
engine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/JP2024/030190
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English (en)
French (fr)
Japanese (ja)
Inventor
大湖 鮫島
航 末吉
治 大竹
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Motors Corp
Original Assignee
Mitsubishi Motors Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Motors Corp filed Critical Mitsubishi Motors Corp
Priority to JP2025556211A priority Critical patent/JPWO2025100039A1/ja
Publication of WO2025100039A1 publication Critical patent/WO2025100039A1/ja
Anticipated expiration legal-status Critical
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00—Pressure lubrication
    • F01M1/02—Pressure lubrication using lubricating pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00—Pressure lubrication
    • F01M1/06—Lubricating systems characterised by the provision therein of crankshafts or connecting rods with lubricant passageways, e.g. bores
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00—Pressure lubrication
    • F01M1/10—Lubricating systems characterised by the provision therein of lubricant venting or purifying means, e.g. of filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00—Pressure lubrication
    • F01M1/16—Controlling lubricant pressure or quantity

Definitions

  • This case concerns the engine oil circuit of an internal combustion engine.
  • Internal combustion engines are provided with an engine oil circuit for supplying engine oil to sliding parts and auxiliary machinery.
  • the engine oil is pumped by an oil pump to an oil gallery (oil passage) provided inside the internal combustion engine and to the auxiliary machinery.
  • a valve and a valve filter may be interposed in the engine oil circuit. The flow rate and pressure of the engine oil are controlled by operating the valve.
  • a valve filter near the valve, malfunction of the valve due to contamination (foreign matter such as metal pieces and sludge, contamination) can be prevented (Patent Document 1).
  • One of the objectives of this case was devised in light of the above-mentioned problems, and is to provide an engine oil circuit that is simple in configuration and can suppress the effect on the position of the valve body caused by engine oil that has passed through a valve filter.
  • another objective of this case is to achieve effects that cannot be obtained with conventional technology, which are derived from the various configurations shown in the "Mode for carrying out the invention" described below.
  • the disclosed engine oil circuit includes an oil passage through which engine oil flows to lubricate the sliding parts of an internal combustion engine, a valve disposed in the oil passage to control the flow rate of the engine oil, and a valve filter disposed upstream of the valve to filter out foreign matter contained in the engine oil flowing into the valve.
  • the valve is positioned so that the movement direction of a valve body contained in the valve is different from the direction of the engine oil flowing through the valve filter.
  • the main passage and the sub-passage are formed in a pump cover that covers the periphery of a pump rotor that pumps the engine oil. It is also preferable that the main passage has an inlet portion into which the engine oil pumped by the pump rotor flows, and a discharge port that is disposed radially outward of the pump rotor relative to the inlet portion and discharges the engine oil to the outside of the pump cover. It is preferable that the valve filter is provided on the wall surface of the pump cover on the discharge port side.
  • the disclosed engine oil circuit has a simple configuration in which the direction of movement of the valve disc is different from the direction of engine oil flowing through the valve filter, thereby suppressing the effect of engine oil that passes through the valve filter on the position of the valve disc.
  • FIG. 1 is a schematic diagram of an internal combustion engine to which an engine oil circuit is applied;
  • FIG. 2 is a schematic circuit diagram of an engine oil circuit.
  • FIG. FIG. 5 is a cross-sectional view of the pump cover and the chain case (cross-sectional view taken along line AA in FIG. 4 ).
  • 6 is a cross-sectional view of the pump cover and the chain case (cross-sectional view taken along the line B-B in FIG. 5 ).
  • FIG. 2 is an exploded perspective view of the valve filter.
  • the engine oil circuit 2 of this embodiment is applied to an internal combustion engine 1 shown in Fig. 1.
  • This internal combustion engine 1 is, for example, a gasoline engine or a diesel engine, and can be installed in automobiles, ships, driving force generating devices, power generating devices, etc.
  • a crank chamber surrounded by a crankcase 3 and an oil pan 4 is formed in the lower part of the internal combustion engine 1, and a crankshaft 5 is provided inside the crank chamber.
  • Engine oil for lubricating and cooling the internal and external auxiliary devices of the internal combustion engine 1 is stored inside the oil pan 4 located below the crankshaft 5.
  • FIG. 2 is a schematic circuit diagram of the engine oil circuit 2.
  • This engine oil circuit 2 is provided with at least an oil pan 4, an oil pump 10, and various sliding parts 23. The flow of engine oil is controlled so that it circulates between these three.
  • the engine oil circuit 2 of this embodiment is provided with a relief valve 13 (valve, orifice valve), an oil filter 21, and an oil cooler 22.
  • the oil pump 10 is a pressure-feeding device that draws in engine oil stored inside the oil pan 4 and discharges it to various sliding parts 23.
  • specific examples of the sliding parts 23 include the crankshaft 5, connecting rods, pistons, intake valves, exhaust valves, camshafts, rocker arms, cams, and turbochargers.
  • the oil pump 10 in this embodiment is a mechanical pump installed inside the chain chamber and is driven by the crankshaft 5.
  • the relief valve 13 is a safety valve that closes when the engine oil pressure is below a predetermined pressure and opens when the oil pressure reaches or exceeds the predetermined pressure.
  • Engine oil that passes through the relief valve 13 when it is open is discharged to the suction side of the oil pump 10 or the oil pan 4.
  • the relief valve 13 contains a valve body (piston, spool, poppet, etc.) that is a sliding member for controlling the valve opening degree.
  • a biasing member such as an elastic body or spring is connected to the valve body, and it is configured to move to a position according to the magnitude of the engine oil pressure.
  • the oil filter 21 is a filtering device for removing contaminants contained in the engine oil. By disposing the oil filter 21 upstream of the sliding parts 23, malfunction of the sliding parts 23 due to contamination is prevented.
  • the entire passage through which the engine oil flows to lubricate the sliding parts 23 of the internal combustion engine 1 is also simply referred to as the oil passage.
  • the oil cooler 22 is a heat exchanger for cooling the engine oil. By cooling the engine oil, the cooling performance of the internal combustion engine 1 is improved and the excessive temperature rise of the engine oil is suppressed.
  • the positions and the arrangement order of the oil pump 10, the oil filter 21, and the oil cooler 22 can be changed as appropriate. Also, the oil filter 21 and the oil cooler 22 may be omitted.
  • FIG 3 is an exploded perspective view showing the oil pump 10 and its surrounding structure.
  • the oil pump 10 has a structure in which a pump rotor 14 is installed within a space surrounded by a chain case 6 and a pump cover 7 fixed to the inside of the chain case 6.
  • the pump cover 7 is provided to cover the periphery of the pump rotor 14, which pumps engine oil.
  • the pump rotor 14 is composed of an inner rotor 15 and an outer rotor 16.
  • the outer rotor 16 is an internal gear-shaped rotor that is rotatably fitted inside a cylindrical recess formed in the chain case 6.
  • the inner rotor 15 is an external gear-shaped rotor that meshes with the internal teeth of the outer rotor 16 in a state where it is eccentric with respect to the center of rotation of the outer rotor 16.
  • the oil pump 10 of this embodiment is a trochoid pump.
  • the outer rotor 16 rotates in response to the inner rotor 15.
  • the volume of the gap between the external teeth of the inner rotor 15 and the internal teeth of the outer rotor 16 increases and decreases as the inner rotor 15 and outer rotor 16 rotate. Therefore, by forming a flow path so that engine oil flows into the gap when the volume increases and flows out of the gap when the volume decreases, it is possible to periodically suck engine oil into the gap and discharge the engine oil under pressure.
  • Figure 4 is a side view showing the structure of the inside (chain case 6 side) of the pump cover 7.
  • the pump cover 7 is provided with a suction passage 8 through which engine oil sucked from the oil pan 4 flows toward the pump rotor 14, and a discharge passage 9 through which engine oil discharged from the pump rotor 14 flows.
  • the suction passage 8 shown in Figure 4 is formed in a shape that runs from the bottom left toward the left half of the pump rotor 14.
  • the discharge passage 9 shown in Figure 4 is formed in a shape that runs from the right half of the pump rotor 14 toward the bottom right.
  • the discharge passage 9 is the main passage through which engine oil that lubricates the sliding parts 23 of the internal combustion engine 1 flows, and constitutes the main passage through which engine oil discharged from the pump rotor 14 flows.
  • the suction passage 8 is formed inside the pump cover 7 in a shape in which the flow path cross-sectional area increases downstream toward the pump rotor 14.
  • the discharge passage 9 is formed inside the pump cover 7 in a shape in which the flow path cross-sectional area decreases downstream from the pump rotor 14.
  • the suction passage 8 is formed in a shape in which the vertical flow path width increases downstream toward the pump rotor 14.
  • the discharge passage 9 is formed in a shape in which the vertical flow path width decreases downstream from the pump rotor 14.
  • the flow path width in the direction perpendicular to the paper surface of Figure 4 (horizontal direction) is approximately constant from the upstream side to the downstream side of the suction passage 8.
  • the discharge passage 9 has an inlet section 17 and a discharge port 18.
  • the inlet section 17 is the section into which engine oil pumped to the pump rotor 14 flows, and is arranged in a semicircular arc shape corresponding to the right half of the outer periphery of the pump rotor 14 shown in FIG. 4.
  • the discharge port 18 is a hole (opening) that discharges the engine oil to the outside of the pump cover 7, and is arranged radially outward of the pump rotor 14 than the inlet section 17.
  • the position of the discharge port 18 is set near the bottom of the discharge passage 9 so that the engine oil is smoothly discharged to the outside of the pump cover 7.
  • the discharge port 18 is formed as a circular hole.
  • the pump cover 7 is provided with a sub-passage 11 that branches off from the wall surface of the discharge passage 9.
  • the relief valve 13 described above is interposed in the sub-passage 11 and controls the flow rate of engine oil that flows from the discharge passage 9 into the sub-passage 11. Engine oil flows into the sub-passage 11 only when the relief valve 13 is open, and when the relief valve 13 is closed, the flow of engine oil in the sub-passage 11 stops.
  • a valve filter 20 is provided at the branch point 12 from the discharge passage 9 to the sub-passage 11 to filter out foreign matter contained in the engine oil flowing into the sub-passage 11.
  • the valve filter 20 is provided at the entrance to the sub-passage 11 along the wall surface of the discharge passage 9.
  • the valve filter 20 is a mesh filter, and is made by fixing a mesh-like filter (e.g., wire mesh or punched metal) to the inside of a cylindrical ring.
  • the valve filter 20 may be formed by stacking multiple mesh filters as shown in FIG. 7.
  • the valve filter 20 of this embodiment is formed by sandwiching a first mesh 31 having a fine mesh between a pair of second meshes 32 having a coarser mesh than the first mesh 31.
  • the mesh thickness (wire diameter) of the second mesh 32 is formed to be thicker than that of the first mesh 31.
  • the inside of the discharge passage 9 is divided into two regions, upstream and downstream.
  • the upstream region is the region closer to the inlet 17 than the midpoint between the inlet 17 and the discharge port 18, and the downstream region is the region from the midpoint between the inlet 17 and the discharge port 18 to the discharge port 18.
  • the midpoint between the inlet 17 and the discharge port 18 is the position where the distance to the center point C of the pump rotor 14 (the center of rotation of the crankshaft 5) is the same as the distance to the center point D of the discharge port 18 in the side view of the pump cover 7 shown in Figure 4.
  • the vicinity of the midpoint between the inlet 17 and the discharge port 18 (the upstream region closer to the downstream, and the downstream region closer to the upstream) may be referred to as the midstream.
  • the valve filter 20 is provided on the wall surface of the discharge passage 9 within a range from the midpoint between the inlet 17 and the discharge port 18 to the discharge port 18.
  • the valve filter 20 is disposed within a range from the midstream to the downstream of the discharge passage 9.
  • the valve filter 20 is also provided within a range of the discharge passage 9 where the flow path cross-sectional area is reduced. In other words, when focusing on the flow path cross-sectional area of the discharge passage 9, the flow path cross-sectional area downstream of the valve filter 20 (the discharge port 18 side) is narrower, and the flow path cross-sectional area upstream of the valve filter 20 (the inlet 17 side) is wider.
  • the valve filter 20 is provided at a position higher than the discharge port 18. In other words, the discharge port 18 is located vertically lower than the valve filter 20.
  • an inclined surface 24 is provided that slopes toward the downstream of the discharge passage 9.
  • the inclined surface 24 is formed on at least the range from the midstream to the downstream of the bottom surface of the discharge passage 9. This ensures a smooth flow of engine oil from the midstream to the downstream of the discharge passage 9.
  • the valve filter 20 is also set above the inclined surface 24 so as to be spaced apart from it.
  • FIGS. 5 and 6 are cross-sectional views showing a cut surface passing through the valve filter 20.
  • FIG. 5 is a cross-sectional view taken along line A-A in FIG. 4
  • FIG. 6 is a cross-sectional view taken along line B-B in FIG. 5.
  • the valve filter 20 is arranged so that the filter surface is aligned with the flow direction of the engine oil in the discharge passage 9.
  • the flow direction of the engine oil flowing from the discharge passage 9 into the sub-passage 11 may be approximately perpendicular to the flow direction of the engine oil in the discharge passage 9, or may be inclined (neither parallel nor perpendicular) to the flow direction of the engine oil in the discharge passage 9.
  • the flow direction of engine oil passing through the valve filter 20 is to the right on the page in FIG. 5 (the opposite direction to the chain case 6).
  • the movement direction of the valve body of the relief valve 13 is downward on the page in FIG. 5 (vertically downward). In other words, the flow direction of engine oil passing through the valve filter 20 and the movement direction of the valve body of the relief valve 13 are different. After passing through the valve filter 20, the engine oil bends downward on the page in FIG. 5 before reaching the valve body of the relief valve 13.
  • the flow direction of engine oil in the discharge passage 9 is perpendicular to the paper (from the back to the front of the paper).
  • the filter surface of the valve filter 20 is arranged to form a plane that extends in a direction perpendicular to the paper and in the up-down direction along this flow.
  • the flow direction of engine oil in the discharge passage 9 is horizontal (from left to right on the paper).
  • the filter surface of the valve filter 20 is arranged to form a plane that extends in a direction perpendicular to the paper and in the up-down direction along this flow.
  • the filter surface of the valve filter 20 is flush with the wall surface of the discharge passage 9, or is located inside the discharge passage 9 relative to the wall surface of the discharge passage 9, i.e., toward the center (below the paper in FIG. 6) so that it is exposed to the flow of engine oil in the discharge passage 9.
  • the diameter of the valve filter 20 is larger than the diameter of the discharge port 18. That is, if the inner diameter of the valve filter 20 is J and the inner diameter of the discharge port 18 is K, then J>K holds.
  • the discharge passage 9 also has a protrusion 19 that protrudes inward from its wall surface.
  • the valve filter 20 is provided on this protrusion 19.
  • the protrusion 19 is formed, for example, in a shape in which the edge of the entrance of the sub-passage 11 bulges outward toward the inside of the discharge passage 9 in a bank-like shape. In the cross section shown in FIG. 6, if the bulging dimension of the protrusion 19 based on the wall surface of the discharge passage 9 is H, then H>0 holds.
  • the portion upstream of the convex portion 19 is formed with a wider flow path width and a larger flow path cross-sectional area than the portion downstream of the convex portion 19. Also, if one focuses on the shape of the discharge passage 9 with reference to the position of the convex portion 19, the portion upstream of the convex portion 19 is formed to be positioned higher than the portion downstream of the convex portion 19.
  • the direction in which the engine oil flows from the discharge passage 9 into the sub-passage 11 is the upward direction on the page.
  • the direction in which the engine oil flows near the discharge port 18 is also the upward direction on the page, and is approximately parallel to the direction in which the engine oil flows into the sub-passage 11.
  • the valve filter 20 is provided on the wall surface of the discharge passage 9 (main passage) that is located on the discharge port 18 side of the pump cover 7. In other words, the discharge port 18 and the valve filter 20 are both provided on the same side of the discharge passage 9, and are positioned on the upper side of the page in FIG. 6 with respect to the discharge passage 9.
  • the discharge port 18 is provided at a location where the pump cover 7 bulges out on the opposite side to the chain case 6, and the sub-passage 11 is also provided at a location where the pump cover 7 bulges out on the opposite side to the chain case 6.
  • the flow of engine oil in the discharge passage 9 curves leftward in FIG. 6.
  • the valve filter 20 is located on the upper wall of the discharge passage 9 in FIG. 6, on the inside of the left curve.
  • the engine oil circuit 2 includes an oil passage (e.g., a discharge passage 9 and a sub-passage 11 branched off from a wall surface of the discharge passage 9) through which engine oil flows to lubricate sliding parts 23 of the internal combustion engine 1, a relief valve 13 disposed in the sub-passage 11 to control the flow rate of engine oil flowing into the sub-passage 11, and a valve filter 20.
  • the relief valve 13 is disposed such that the movement direction of the relief valve 13 differs from the flow direction of the engine oil flowing through the valve filter 20.
  • the oil pump 10 is a trochoid pump, and pulsation occurs in the flow rate (oil pressure) of the engine oil discharged by the oil pump 10.
  • the relief valve 13 is a valve that moves due to the oil pressure of the engine oil. Therefore, the valve body of the relief valve 13 vibrates due to the pulsation of the engine oil.
  • the engine oil passes through the valve filter 20, thereby mitigating the pulsation, and the movement direction of the valve body of the relief valve 13 is set to be different from the flow direction of the engine oil flowing through the valve filter 20, thereby further mitigating the pulsation of the engine oil that reaches the relief valve 13 after passing through the valve filter 20. This makes it possible to suppress the vibration of the relief valve 13, and to open and close the relief valve 13 with precision.
  • a sub-passage 11 branches off from the discharge passage 9 (main passage), the valve filter 20 is provided on the wall of the discharge passage 9, and the relief valve 13 is provided in the sub-passage 11. That is, the relief valve 13 is arranged so that its valve body moves in a direction that is not perpendicular to the wall of the discharge passage 9 (a direction roughly along the wall of the discharge passage 9). Therefore, the extension direction of the relief valve 13 is a direction roughly along the wall of the discharge passage 9, so that the relief valve 13 can be arranged compactly.
  • the contaminants collected on the valve filter 20 can be exposed to the flow of the discharge passage 9, and the contaminants can be pushed downstream of the discharge passage 9.
  • the discharge passage 9 (main passage) has a protrusion 19 formed by protruding the wall surface inward from the surrounding area, and the valve filter 20 is provided in the protrusion 19.
  • the valve filter 20 is provided closer to the center of the discharge passage 9, the flow rate and flow speed of the engine oil flowing near the valve filter 20 can be increased, and the cleaning action of the valve filter 20 by the engine oil can be enhanced.
  • the flow path width of the discharge passage 9 (main passage) downstream of the convex portion 19 is narrower than that of the upstream side of the convex portion 19. This increases the flow rate of the engine oil flowing near the valve filter 20. Therefore, contaminants collected on the valve filter 20 can be efficiently swept away to the downstream side of the discharge passage 9 when the relief valve 13 is closed, enhancing the cleaning effect of the valve filter 20 by the engine oil.
  • the downstream side of the convex portion 19 of the discharge passage 9 (main passage) is positioned vertically lower than the upstream side of the convex portion 19.
  • the portion upstream of the convex portion 19 is positioned higher than the portion downstream of the convex portion 19.
  • an inclined surface 24 is provided below the valve filter 20, so that the contaminants can be more reliably pushed toward the discharge port 18. Furthermore, the position of the valve filter 20 is set above and away from the inclined surface 24, so that the contaminants that have peeled off the valve filter 20 can be prevented from reattaching, and the contaminants can be more reliably pushed toward the discharge port 18.
  • the discharge passage 9 (main passage) and the sub-passage 11 are provided in the pump cover 7.
  • the discharge port 18 is formed in the wall surface of the pump cover 7 (the wall surface of the discharge passage 9), and the sub-passage 11 is provided on the side of the wall surface of the pump cover 7 (the wall surface of the discharge passage 9) where the discharge port 18 is formed.
  • the discharge passage 9 and the sub-passage 11 are formed on the same surface of the pump cover 7 (the same side of the wall surface of the discharge passage 9). This makes it possible to make the oil pump 10 compact.
  • the valve filter 20 is formed by overlapping a first mesh 31 and a second mesh 32 with different mesh coarseness. This improves the durability of the valve filter 20.
  • the first mesh 31 is sandwiched between two second meshes 32 with thicker meshes, so that both the front side (chain case 6 side) and back side (pump cover 7 side) of the first mesh 31 with thinner mesh can be protected by the second mesh 32 with thicker mesh.
  • the first mesh 31 and the second mesh 32 have different meshes and mesh thicknesses, they also have different natural frequencies. Therefore, the vibration of one of the first mesh 31 and the second mesh 32 caused by the pulsation of the engine oil can be suppressed by the other.
  • the internal combustion engine 1 to which the engine oil circuit 2 is applied may be a gasoline engine or a diesel engine.
  • the internal combustion engine 1 may be mounted not only on automobiles but also on ships, driving force generating devices, power generating devices, etc.
  • the automobile When the internal combustion engine 1 is mounted on an automobile, the automobile may be an engine vehicle or a hybrid vehicle.
  • valve filter 20 provided upstream of the relief valve 13 has been described in detail, but the type of valve placed downstream of the valve filter 20 is not limited to the relief valve 13.
  • the valve filter 20 can be located at any position on the engine oil circuit 2.
  • This invention can be used in the manufacturing industry of engine oil circuits applied to internal combustion engines, and the manufacturing industry of internal combustion engines to which engine oil circuits are applied. It can also be used in the manufacturing industry of automobiles, ships, driving force generating devices, power generating devices, etc., which are equipped with internal combustion engines to which engine oil circuits are applied.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
PCT/JP2024/030190 2023-11-06 2024-08-26 エンジンオイル回路 Pending WO2025100039A1 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2025556211A JPWO2025100039A1 (https=) 2023-11-06 2024-08-26

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Application Number Priority Date Filing Date Title
JP2023189346 2023-11-06
JP2023-189346 2023-11-06

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Publication Number Publication Date
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Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57193003U (https=) * 1981-05-28 1982-12-07
JPH0234778U (https=) * 1988-08-30 1990-03-06
JPH02114708U (https=) * 1989-02-28 1990-09-13
JPH0630407U (ja) * 1992-09-22 1994-04-22 日信工業株式会社 フィルタ装置
JPH11148309A (ja) * 1997-11-19 1999-06-02 Toshiba Corp 蒸気タービンオイルフラッシング装置
JPH11270472A (ja) * 1998-03-24 1999-10-05 Aisin Seiki Co Ltd オイルポンプ
JP2013204516A (ja) * 2012-03-28 2013-10-07 Honda Motor Co Ltd オイルポンプを備えたエンジン
US20140261280A1 (en) * 2013-03-13 2014-09-18 Honda Motor Co., Ltd. Active pressure relief valve system and method
WO2016088282A1 (ja) * 2014-12-02 2016-06-09 株式会社エコラ・テック オイルフィルタ装置及びオイルフィルタエレメント
JP2018013070A (ja) * 2016-07-20 2018-01-25 マツダ株式会社 エンジンのオイル供給装置
JP2020073807A (ja) * 2017-03-08 2020-05-14 日立オートモティブシステムズ株式会社 バランサ装置とオイルポンプ及びバランサシャフト軸受部の潤滑システム

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57193003U (https=) * 1981-05-28 1982-12-07
JPH0234778U (https=) * 1988-08-30 1990-03-06
JPH02114708U (https=) * 1989-02-28 1990-09-13
JPH0630407U (ja) * 1992-09-22 1994-04-22 日信工業株式会社 フィルタ装置
JPH11148309A (ja) * 1997-11-19 1999-06-02 Toshiba Corp 蒸気タービンオイルフラッシング装置
JPH11270472A (ja) * 1998-03-24 1999-10-05 Aisin Seiki Co Ltd オイルポンプ
JP2013204516A (ja) * 2012-03-28 2013-10-07 Honda Motor Co Ltd オイルポンプを備えたエンジン
US20140261280A1 (en) * 2013-03-13 2014-09-18 Honda Motor Co., Ltd. Active pressure relief valve system and method
WO2016088282A1 (ja) * 2014-12-02 2016-06-09 株式会社エコラ・テック オイルフィルタ装置及びオイルフィルタエレメント
JP2018013070A (ja) * 2016-07-20 2018-01-25 マツダ株式会社 エンジンのオイル供給装置
JP2020073807A (ja) * 2017-03-08 2020-05-14 日立オートモティブシステムズ株式会社 バランサ装置とオイルポンプ及びバランサシャフト軸受部の潤滑システム

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