WO2019106759A1 - Structure de carter d'huile - Google Patents

Structure de carter d'huile Download PDF

Info

Publication number
WO2019106759A1
WO2019106759A1 PCT/JP2017/042830 JP2017042830W WO2019106759A1 WO 2019106759 A1 WO2019106759 A1 WO 2019106759A1 JP 2017042830 W JP2017042830 W JP 2017042830W WO 2019106759 A1 WO2019106759 A1 WO 2019106759A1
Authority
WO
WIPO (PCT)
Prior art keywords
oil pan
additional
oil
oil chamber
wall
Prior art date
Application number
PCT/JP2017/042830
Other languages
English (en)
Inventor
Matt DAVIES
Steve Garrett
Paul Chapman
Original Assignee
Nifco Inc.
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 Nifco Inc. filed Critical Nifco Inc.
Priority to PCT/JP2017/042830 priority Critical patent/WO2019106759A1/fr
Publication of WO2019106759A1 publication Critical patent/WO2019106759A1/fr

Links

Images

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
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/0004—Oilsumps
    • 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
    • F01M5/00—Heating, cooling, or controlling temperature of lubricant; Lubrication means facilitating engine starting
    • F01M5/005—Controlling temperature of lubricant
    • F01M5/007—Thermostatic control
    • 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
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/0004—Oilsumps
    • F01M2011/0037—Oilsumps with different oil compartments
    • F01M2011/0045—Oilsumps with different oil compartments for controlling the oil temperature
    • 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
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/0004—Oilsumps
    • F01M2011/0062—Gaskets

Definitions

  • the present invention relates to an oil pan structure for an internal combustion engine, formed with less parts and low manufacturing cost.
  • An oil pan is one of components forming an internal combustion engine, and generally, is arranged under a cylinder block. In the oil pan, an engine oil to be provided in the internal combustion engine is stored.
  • an oil sump for an internal combustion engine includes a base body forming a main oil chamber, and a plurality of walls forming an additional oil chamber. More specifically, the plurality of walls includes a bottom wall, a reinforcing wall, a top wall and a side wall. The bottom wall and the reinforcing wall are integrally connected to an outer surface of the base body to form a space therein; and the top wall and the side wall are separately formed from the base body, and connected to each other to form a space therein. The top wall and the side wall are engaged to the bottom wall and the reinforcing wall to communicate the spaces, and the spaces form the additional oil chamber. The main oil chamber and the additional oil chamber are communicated through openings respectively formed on the base body and the reinforcing wall.
  • an oil pan connected to a crankcase is disclosed.
  • an adapter frame is required as a connecting device, and the adapter frame is arranged between the crankcase and the oil pan.
  • a gasket is arranged on the adapter frame to seal between the crankcase and the oil pan.
  • Patent Document 1 European Patent Application Publication No. 2217794.
  • Patent Document 2 European Patent Application Publication No. 2574747.
  • the oil sump disclosed in the Patent Document 1 has the main oil chamber and the additional oil chamber; however, many additional components, such as the plurality of walls, are required to form the additional oil chamber; thereby, a manufacturing cost of the oil sump is increased.
  • an oil passage between the main oil chamber and the additional oil chamber is formed by the openings formed on the base body and the reinforcing wall; therefore, shape and size of the oil passage is restricted.
  • the oil pan disclosed in the Patent Document 2 is connected to the crankcase; however, the adapter frame as the connecting device is required, and the gasket formed of aluminum plate is required to seal between the crankcase and the oil pan. That is, additional components are required to connect the oil pan and the crankcase; thereby, a manufacturing cost of the oil pan is increased.
  • an oil pan structure for an internal combustion engine formed with less parts and low manufacturing cost is provided.
  • an oil pan structure for an internal combustion engine comprises an oil pan including a main body portion forming a main oil chamber with a main opening therein, and an additional portion forming an additional oil chamber with an additional opening therein, the additional portion being integrally formed with the main body portion; and a seal member engaging the oil pan, and including a frame portion arranged on the main body portion to form an seal member opening matched with the main opening, and a side plate covering the additional opening of the additional portion.
  • the oil pan requires less parts to form the main oil chamber and the additional oil chamber, and the seal member requires less parts to cover the additional opening; therefore, manufacturing cost is reduced.
  • the oil pan includes a partition wall partitioning into the main oil chamber and the additional oil chamber, and having a communication portion communicating the main oil chamber and the additional oil chamber, the communication portion being formed as a baffle structure.
  • a design of the communication portion is not restricted, i.e. the communication portion can be freely designed, and with the baffle structure, oil movement is restrained under tilt, surge, or slosh condition.
  • the oil pan includes a first protrude portion protruding toward a lower surface of the seal member, and the seal member includes a second protrude portion protruding toward an upper surface of the oil pan, and arranged adjacent to the first protrude portion; and the first protruding portion and the second protruding portion are joined to engage the oil pan and the seal member.
  • the first protrude portion and the second protrude portion are welded together, and the oil pan and the seal member are strongly engaged and sealed.
  • the main oil chamber has the main opening
  • the additional oil chamber has the additional opening
  • the main opening is formed on a plane same to the additional opening.
  • the partition wall includes a center wall arranged at a center portion thereof and a side wall arranged at a side of the center wall to be partially overlapped with the center wall to form the baffle structure.
  • productivity of the baffle structure is improved.
  • the oil pan structure includes a thermostatic device arranged at the communication portion, and actuated depending on a temperature of an oil to restrain oil movement.
  • a thermostatic device arranged at the communication portion, and actuated depending on a temperature of an oil to restrain oil movement.
  • communication of the main oil chamber and the additional oil chamber is controlled, and thermal efficiency to warm up the oil faster is improved.
  • the thermostatic device is a flap to open and close the communication portion in accordance with the temperature of the oil. In the structure, workability of installation to the communication portion is improved.
  • the seal member includes a seal flange portion surrounding the seal member opening, and extending inwardly to be positioned inside a wall portion of the main portion of the oil pan.
  • the seal flange portion extends inwardly relative to an outer wall and the partition wall forming the main portion, under the seal flange portion, extra space is formed in the main oil chamber; thereby, main oil chamber is enlarged.
  • the frame portion and the side plate are integrally formed.
  • productivity of the seal member is improved; thereby, manufacturing cost of the seal member is reduced.
  • Fig. 1 is a first perspective view of an oil pan structure wherein an oil pan and a seal member are engaged each other, in accordance with an embodiment of the present invention.
  • Fig. 2 is a second perspective view of the oil pan structure in accordance with the embodiment of the present invention.
  • Fig. 3 is a perspective view of the oil pan in accordance with the embodiment of the present invention.
  • Fig. 4 is a bottom plan view of the oil pan structure in accordance with the embodiment of the present invention.
  • Fig. 5 is a front view of the oil pan structure in accordance with the embodiment of the present invention.
  • Fig. 6 is a cross-sectional view of the oil pan structure in accordance with the embodiment of the present invention taken along the line 6-6 in Fig. 5.
  • Fig. 1 is a first perspective view of an oil pan structure wherein an oil pan and a seal member are engaged each other, in accordance with an embodiment of the present invention.
  • Fig. 2 is a second perspective view of the oil pan structure in accordance with
  • Fig. 7 is a perspective bottom view of the seal member in accordance with the embodiment of the present invention.
  • Fig. 8 is a cross-sectional view of the oil pan structure taken along the line 8-8 in Fig. 2.
  • Fig. 9 is an enlarged view of a portion enclosed with a rectangular 9 in Fig. 8.
  • Fig. 10 is a cross-sectional view of the oil pan structure in accordance with the embodiment of the present invention taken along the line 10-10 in Fig. 2.
  • Fig. 11 is an enlarged view of a portion enclosed with a rectangular 11 in Fig. 10.
  • Fig. 12 is an enlarged view of a communication portion of the oil pan in a state wherein a thermostatic device is arranged at the communication portion.
  • the oil pan structure 1 is generally arranged under a component such as a cylinder block, and in the oil pan, an engine oil to be provided in an internal combustion engine is stored.
  • a component such as a cylinder block
  • an engine oil to be provided in an internal combustion engine is stored.
  • the oil pan structure 1 includes an oil pan 2 and the seal member 3, and the oil pan 2 and the seal member 3 are engaged each other.
  • the oil pan 2 and the seal member 3 are formed with polyamide resin called as “Polyamide 66” or polyamide resin reinforced with glass fiber called as “PA66GF35.” Any suitable material may be used to form the oil pan 2 and the seal member 3.
  • the oil pan 2 will be explained with reference to Figs. 1 to 6, especially Fig. 3.
  • the oil pan 2 is formed with a bottom wall 21, an outer periphery wall 22, and partition walls 23, 24.
  • the bottom wall 21 covers a bottom opening surrounded by the outer periphery wall 22 to form an oil chamber therein, and the partition walls 23, 24 partition the oil chamber into a main oil chamber 10, a first additional oil chamber 20, and a second additional oil chamber 30. That is, the oil pan 2 includes a main body portion 10’ forming the main oil chamber 10, a first additional portion 20’ forming the first additional oil chamber 20, and a second additional portion 30’ forming the second additional oil chamber 30.
  • the oil pan 2 is provided with less parts, and manufacturing cost of the oil pan 2 is reduced.
  • the bottom wall 21 includes a center bottom wall 211 and outer bottom walls 212, 213 arranged at two sides of the center bottom wall 211 to form a level difference in a vertical direction between the center bottom wall 211 and each of outer bottom walls 212, 213.
  • the center bottom wall 211 includes a center portion 211a between the partition walls 23, 24, a first side portion 211b between the partition wall 24 and the outer bottom wall 212, and a second side portion 211c between the partition wall 23 and the outer bottom portion 213.
  • the outer periphery wall 22 includes outer walls 101, 102, and side walls 201, 301, the side wall 201 extending outwardly to connect ends of the outer walls 101 and the side wall 301 extending outwardly to connect ends of the outer wall 102.
  • the partition walls 23, 24 linearly extend between the ends of the outer walls 101, 102, respectively, and the outer walls 101, 102 and the partition walls 23, 24 are connected to substantially form a square shape.
  • the outer walls 101, 102 of the outer periphery wall 22 and the partition walls 23, 24 form the main body portion 10’ with the center portion 211a of the bottom wall 21, and the main oil chamber 10 is formed in the main body portion 10’.
  • a plurality of concave portions is formed, as shown in Figs. 2-5.
  • the plurality of concave portions includes a drain discharge forming portion 101a, a first cube shape concave portion 101b, a second cube shape concave portion 101c, and a plate shape concave portion 101d.
  • the drain discharge forming portion 101a is formed on a side portion 101’ of the outer wall 101 arranged at a side wherein the first additional oil chamber 20 is formed, and the side portion 101’ includes an upper portion 101’a, a lower portion 101’b, and a connecting portion 101’c connecting the upper portion 101’a and the lower portion 101’b.
  • the lower portion 101’b is inwardly concaved relative to the upper portion 101’a to form L-shape with the connecting portion 101’c, and the drain discharge forming portion 101a is formed in a space defined by the lower portion 101’b and the connecting portion 101’c.
  • an outer portion 251 of a drain pipe 25, explained later, is installed in the drain discharge forming portion 101a.
  • the first cube shape concave portion 101b is formed by inwardly concaving a corner between the outer wall 101 and the bottom wall 21 at the side wherein the first additional oil chamber 20 is formed
  • the second cube shape concave portion 101c is formed by inwardly concaving an opposite corner between the outer wall 101 and the bottom wall 21 at a side wherein the second additional oil chamber 30 is formed.
  • the first cube shape concave portion 101b and the second cube shape concave portion 101c are formed to reduce the resin quantity to be used and to improve workability of installation in the internal combustion engine.
  • the plate shape concave portion 101d is formed on the center bottom wall 211 at the side wherein the first additional oil chamber 20 is formed.
  • the plate shape concave portion 101d extends between the first cube shape concave portion 101b and the outer wall 102 along the partition wall 23 to be shaped into a plate, and is concaved such that the center bottom wall 211 is inclined to be higher in a direction from the first additional oil chamber 20 toward the main oil chamber 10, as shown in Fig. 5; thereby, the oil is easily retained at a side wherein the drain pipe 25 is formed.
  • the side wall 201 includes side portions 201a and an outer portion 201b extending between the side portions 201a to form a U-shape; and the side portions 201a, the outer portion 201b, and the partition wall 23 are connected to form a square shape.
  • the side wall 201 further includes a connecting portion 201c connecting the side portion 211b of the center bottom wall 211 and the outer bottom wall 213, as shown in Fig. 5.
  • the side portion 211b, the connecting portion 201c, and the outer bottom wall 213 cover a bottom opening surrounded by the side portions 201a, the outer portion 201b, and the partition wall 23 to form the first additional portion 20’, and the first additional oil chamber 20 is formed in the first additional portion 20’.
  • the side portions 201a extend outwardly from connecting portions 103, 104 where the outer walls 101, 102 and the partition wall 23 are connected, and as explained above, since the level difference in the vertical direction is formed between the side portion 211b of the center bottom wall 211 and the outer bottom wall 212, the side portion 201a has, in the vertical direction, a different length at an outer side and an inner side thereof, i.e. the length at the inner side is greater than that of the outer side.
  • the side wall 301 includes side portions 301a, an outer portion 301b, and connecting portion 301c; and the side portion 301 and the partition wall 24 form the second additional portion 30’ with the first side portion 211b and outer bottom wall 212 of the bottom wall 21, and the second additional oil chamber 30 is formed in the second additional portion 30’. That is, the side wall 301 has a structure basically same as the side wall 201; therefore, detail explanation of the structure will be omitted, and difference will be explained hereinafter.
  • the outer portion 301b has, in the horizontal direction, a length shorter than that of the outer portion 201b; and the side portions 301a, the outer portion 301b, and the partition wall 24 are connected to form a trapezoid shape because the drain pipe 25 is arranged next to the side wall 301 on the outer wall 101.
  • the second additional oil chamber 30 is smaller than the first additional oil chamber 20; however, sizes of the first and second additional oil chambers are not limited to this embodiment.
  • the outer walls 101, 102, the side walls 201, 301, and the partition walls 23, 24 are integrally formed, i.e. the main body portion 10’, the first additional portion 20’, and the second additional portion 30’ are integrally formed as one member; therefore, the oil pan 2 is formed with less parts.
  • upper end portions of the outer walls 101, 102, the side walls 201, 301, and the partition walls 23, 24 are arranged at the same position in the vertical direction, i.e. being arranged on the same plane; thereby, openings 11, 202, 302 of the main oil chamber 10, the first additional oil chamber 20, and the second additional portion 30, each being opened upwardly, are also formed on the same plane. Therefore, installation rigidity of the oil pan 2 to a cylinder block is improved.
  • a flange portion 26 is formed to receive the seal member 3, explained later.
  • the flange portion 26 extends outwardly in a direction apart from the upper end portions of the outer walls 101, 102 and the side walls 201, 301, and a plurality of through holes 261 is formed thereon.
  • any fixing members such as a bolt, a pin or the like, are inserted to engage with the cylinder block; therefore, under the plurality of through holes 261, spaces S are required to store the fixing members.
  • the outer walls 101, 102 are curved inwardly, especially, under the through holes 261a, 261b formed at the connecting portions 103, 203, the outer wall 102 and the side walls substantially annually curved to form truncated cone shape spaces S1, each having a diameter greater in a direction toward the bottom wall 21 from the through holes 261a, 261b.
  • the flange portion 26 further includes a plurality of cylindrical portions 262, each protruding upwardly from an upper surface 26a of the flange portion 26 and surrounding an edge of the through hole 261, and a protrude portion 263 formed thereon.
  • the cylindrical portion 262 and the protrude portion 263 are formed to engage the seal member 3, explained later.
  • the protrude portion 263 protrudes upwardly from an inner edge of an upper surface 26a.
  • an inner surface of the protrude portion 263 is arranged to from the same plane with inner surfaces of the outer walls 101, 102 and the side walls 201, 301 in the vertical direction; and the protrude portion 263 continuously extends along the outer periphery wall 22, i.e.
  • the protrude portion 263 is curved inwardly at portions where the outer walls 101, 102 and the side portions 201a, 301a are inwardly curved. With the curve of the protrude portion 263, a definite distance between the through holes 261 and the protrude portion 263 is maintained, and with the definite distance, strength of the flange portion 26 is improved.
  • a plurality of ribs 27 is formed between the flange portion 26 and the outer walls 101, 102 to reinforce strength of the flange portion 26.
  • the rib 27 is formed at an intermediate position between two through holes 261; however, positions of the plurality of ribs 27 are not limited to this embodiment, and more than two ribs 27 may be formed between two through holes 261 if more strength of the flange portion 26 is required.
  • the plurality of ribs 27 protrudes outwardly from middle portions of the outer walls 101, 102 in the horizontal direction; and the rib 27 has a protruding length increasing in a direction toward the upper end portions of the outer wall 101, 102, and as shown Fig. 4, the protruding length is substantially equal to that of the flange portion 26 at a connecting portion connecting an upper surface of the rib 27 and a lower surface 26b of the flange portion 26.
  • the main oil chamber 10 and the first additional oil chamber 20 are partitioned by the partition wall 23, and the main oil chamber 10 and the second additional oil chamber 30 are partitioned by the partition wall 24.
  • the partition walls 23, 24 will be explained with reference to Figs. 3 and 6.
  • the partition wall 23 includes a center wall 231 and side wall portions 232, 233, and the center wall 231 includes a center portion 231a and side portions 231b, 231c.
  • the center portion 231a has a cylindrically curved inner wall 231a1 and a cylindrically curved outer wall 231a2 integrally connecting the cylindrically curved inner wall 231a1 to form a circular shape in a cross sectional view, and inside the cylindrically curved inner and outer walls 231a1, 231a2, the space S2 having a truncated cone shape is formed to store the fixing member.
  • the center portion 231a includes an upper plate portion 231d arranged on an upper portion of the cylindrically curved inner and outer walls 231a1, 231a2 to cover an upper opening of the space S2; and the center portion 231a further includes a through hole 231e formed on the upper plate portion 231d, and a cylindrical portion 231f surrounding an edge of the through holes 231e and protruding upwardly from the upper plate portion 231d.
  • the upper plate portion 231d annularly extends around the through holes 231e to receive a hole portion 311 of the seal member 3, explained later.
  • the upper plate portion 231d and the flange portion 26 are arranged on the same plane in the vertical direction; and the cylindrical portion 231f, the cylindrical portions 262, and the protrude portion 263 protrude from the upper plate portion 231d and the flange portion 26 to form the same plane in the vertical direction at upper ends thereof.
  • the side portions 231b, 231c linearly extend from the center portion 231a toward the connecting portions 103, 104, and respectively include outwardly curved portions 231b1, 231c1 at outer end portions thereof.
  • the outwardly curved portions 231b1, 231c1 are outwardly curved toward the outer portion 201b of the side wall 201 to form S-shapes, respectively, and the outwardly curved portions 231b1, 231c1 are arranged to form a baffle structure with the side walls 232, 233, explained later.
  • the side walls 232, 233 linearly extend from the connecting portions 103, 104 toward the center wall 231, and respectively include inwardly curved portions 232a, 233a at outer end portions thereof.
  • the inwardly curved portions 232a, 233a are inwardly curved in a direction apart from the outer portions 201b of the side wall 201 to form S-shapes, respectively, and the inwardly curved portions 232a, 233a are arranged to be overlapped with the outwardly curved portions 231b1, 231c1 with an interval therebetween.
  • the baffle structure is formed by the inwardly curved portion 232a and the outwardly curved portion 231b1, and the inwardly curved portion 233a and the outwardly curved portion 231c1, and in the baffle structure, oil passages communicating the main oil chamber 10 and the first additional oil chamber 20 are formed as communication portions C. Since the communication portions C communicating the main oil chamber 10 and the first additional oil chamber 20 are formed in the partition wall 23, a design of the communication portion C is not restricted, and with the baffle structure, oil movement is restrained under tilt, surge, or slosh condition. Also, at the communication portion C, a thermostatic device 40 actuated depending on a temperature of an oil to restrain oil movement, as shown in Fig. 12, is arranged.
  • the oil passages are opened and closed by the thermostatic device 40 in accordance with temperature rise of the oil, and the oil stored in the main oil chamber 10 is separated from those of the first additional oil chamber 20 and the second additional oil chamber 20, i.e. communication of the main oil chamber 10 and the first additional oil chamber 20 is controlled; thereby, at an initial stage of activation of the engine, the oil stored in the main oil chamber 10 is warmed up faster, and thermal efficiency of the oil is improved.
  • the thermostatic device 40 may be a flap to open and close the communication portion in accordance with the temperature of the oil to improve workability of installation to the communication portion C.
  • the thermostatic devices 40, 41 are arranged at the communication portions C of the partition wall 23; however, another thermostatic devices are arranged at the communication portions C of the partition wall 24.
  • the thermostatic devices 40, 41 have flap shapes in Fig. 12; however, a size and shape of the thermostatic device is not limited to this, and the thermostatic device may have any size and shape if it controls the communication of the main oil chamber 10, and the first additional oil chamber 20 or the second additional oil chamber 30.
  • the partition wall 24 includes a center wall 241 and side walls 242, 243, i.e. the partition wall 24 has a structure basically same as the partition wall 23; therefore, detail explanation of the structure will be omitted, and difference will be explained hereinafter.
  • the partition wall 24 has a length shorter than that of the partition wall 23 because the second additional oil chamber 30 is smaller than the first additional oil chamber 20; therefore, the center wall 241 and the side walls 242, 243 have lengths shorter than the center wall 231 and the side walls 232, 233 of the partition wall 23.
  • the oil pan 2 includes the drain pipe 25 formed in the drain discharge forming portion 101a on the side portion 101’ of the outer wall 101.
  • the drain pipe 25 will be explained with reference to Figs. 1 to 5.
  • the drain pipe 25 includes an outer portion 251, an inner portion 252, and a through hole portion 253.
  • the outer portion 251 protrudes outwardly from the lower portion 101’b of the side portion 101’ and is housed in the drain discharge forming portion 101a.
  • the inner portion 252 protrudes inwardly into the main oil chamber 10 from an inner surface of the lower portion 101’b of the side portion 101’, and the through hole portion 253 extends between the outer portion 231 and the inner portion 232 to communicate with the main oil chamber 10.
  • an oil drain plug is inserted in the drain pipe 25 to block the through hole portion 253, and during the time of oil change, the oil drain plug is removed from the drain pipe 25.
  • the seal member 3 has an outer periphery matched with the outer periphery wall 22 of the oil pan 2, and includes side plates 31, 32, frame portions 33, 34 connecting the side plates 31, 32, and a seal member opening 35 surrounded by the side plates 31, 32 and the frame portions 33, 34.
  • the side plate 31 is a rectangular plate, and has an outer periphery substantially matched with the side wall 201 and the partition wall 23; thereby, covering the opening 202 of the first additional oil chamber 20.
  • the side plate 32 is a trapezoidal plate, and has an outer periphery substantially matched with the side wall 301 and the partition wall 24; thereby, covering the opening 302 of the second additional oil chamber 30.
  • the side plate 31 includes a hole portion 311 substantially arranged at an intermediate portion between connecting portions 37, 38 connecting the side plate 31 and the frame portions 33, 34 to correspond to the center portion 231a of the center wall 231 of the partition wall 23.
  • the hole portion 311 includes a through hole 311a, a hole flange portion 311b annularly extending around the through hole 311a, and a protrude portion 311c protruding downwardly from an outer edge of the hole flange portion 311b.
  • the side plate 32 includes a hole portion 321, and the hole portion 321 includes a through hole 321a, a hole flange portion 321b, and a protrude portion 321c, i.e. the hole portion 321 has a structure basically same as the hole portion 311; therefore, detail explanation of the structure will be omitted.
  • the frame portions 33, 34 have a plurality of through holes 36 corresponding to the plurality of through holes 261 of the flange portion 26; and the frame portion 33 is arranged on the flange portion 26 of the outer wall 101, and the frame portion 34 is arranged on the flange portion 26 of the outer wall 102, to match the plurality of through holes 36 of the frame portions 33, 34 with the plurality of through holes 261 of the flange portion 26.
  • the side plates 31, 32 and the frame portions 33, 34 respectively include inner edge portions 31a, 32a, 33a, 34a integrally connected to each other to form a seal flange portion 39, and the seal flange portion 39 surrounds the seal member opening 35 thereinside and protrudes downwardly from a lower surface of the seal member 3.
  • the seal member opening 35 is formed to substantially match with the opening 11 of the main oil chamber 10.
  • the seal flange portion 39 i.e. the side plates 31, 32 and the frame portions 33, 34, further includes protrude portions 312, 322, 331, 341 integrally connected to each other to form a seal protrude portion 39’ and extending to be matched with the protrude portion 263 of the flange portion 26.
  • the seal protrude portion 39’ is arranged inside the outer periphery of the seal member 3 to form outer edge portions 31b, 32b, 33b, 34b in the protrude portions 312, 322, 331, 341, and the seal protrude portion 39’ has a protrusion greater than that of the seal flange portion 39, as shown in Fig. 11.
  • a cover plate portion 31c is formed to cover the opening 202 of the first additional oil chamber 20, and on the side plate 32, between the protrude portion 322 and the inner edge portion 32a, a cover plate portion 32c is formed to cover the opening 302 of the second additional oil chamber 30.
  • a groove portion 33c is formed, and on the frame portion 34, between the protrude portion 341 and the inner edge portion 34a, a groove portion 34c is formed, to receive the protrude portion 263 of the flange portion 26.
  • a plurality of hollow hexagonal short cylinders is continuously formed without any space, the structure being known as a honey comb structure, to improve strength thereof.
  • the side plates 31 and the frame portion 33, 34 are integrally formed as one member; thereby, productivity of the seal member 3 is improved, and manufacturing cost of the seal member is reduced.
  • the seal member 3 is arranged on the oil pan 2 such that the through holes 36 and the through holes 311a, 321a of the seal member 3 are aligned with the through holes 261 and the through holes 231e, 241e of the oil pan 2.
  • the side plate 31 of the seal member 3 is engaged with the first additional portion 20’, i.e. the side wall 201 and the partition wall 23 of the oil pan 2.
  • the protrude portion 312 of the side plate 31 is arranged outside the protrude portion 263 of the flange portion 26, and a lower end of the protrude portion 312 contacts the flange portion 26 of the side wall 201; and the protrude portion 311c is arranged outside the cylindrical portion 231f, and a lower end of the protrude portion 311c contacts the upper plate portion 231d, and an upper end of the cylindrical portion 231f contacts a lower surface of the hole flange portion 311b.
  • the contacted portions of the protrude portion 312 and the flange portion 26, the protrude portion 311c and the upper plate portion 231d, and the cylindrical portion 231f and the hole flange portion 311b are welded to join each other; thereby, the oil pan 2 and the seal member 3 are engaged.
  • Hot gas is preferred for the welding, but other suitable methods may be used to join the portions.
  • the opening 202 of the first additional oil chamber 20 is covered by the cover plate portion 31c of the side plate 31, and the inner edge portion 31a is arranged inside the partition wall 23, i.e. under the inner edge portion 31a, extra space for the main oil chamber 10 is formed.
  • the side plate 32 of the seal member 3 and the second additional portion 30’ i.e. the side wall 301 and the partition wall 24 of the oil pan 2, are engaged, and the opening 302 of the second additional oil chamber 30 is covered by the cover plate portion 32c of the side plate 32.
  • the protrude portion 322 of the side plate 32 is arranged outside the protrude portion 263 of the flange portion 26, and a lower end of the protrude portion 322 contacts the flange portion 26 of the side wall 301; and the protrude portion 321c is arranged outside the cylindrical portion 241f, and a lower end of the protrude portion 321c contacts an upper plate portion 241d, and an upper end of the cylindrical portion 241f contacts a lower surface of the hole flange portion 321b.
  • the contacted portions of the protrude portion 322 and the flange portion 26, the protrude portion 321c and the upper plate portion 241d, and the cylindrical portion 241f and the hole flange portion 321b are welded to join each other; thereby, the oil pan 2 and the seal member 3 are engaged.
  • Hot gas is preferred for the welding, but other suitable methods may be used to join the portions, same as joining the side plate 31 and the first additional portion 20’.
  • the frame portion 34 of the seal member 3 is engaged with the outer wall 102 of the oil pan 2.
  • the protrude portion 341 of the frame portion 34 is arranged outside the protrude portion 263 of the outer wall 102; and a lower end of the protrude portion 341 contacts the flange portion 26 of the outer wall 102, and an upper end of the protrude portion 263 contacts a lower surface of the groove portion 34c. Then, the contacted portions of the protrude portion 341 and the flange portion 26, and the protrude portion 263 and groove portion 34c are welded to join each other; thereby, the oil pan 2 and the seal member 3 are engaged.
  • the seal protrude portion 39’ of the seal member 3 is arranged outside the protrude portion 263 of the oil pan 2, and the protrude portions 311c, 321c of the seal member 3 are arranged outside the cylindrical portions 231f, 241f of the oil pan 2; and edge portions of the through holes 36 of the seal member 3 are arranged on the cylindrical portions 262 of the oil pan 2.
  • the seal protrude portion 39’ is welded on the upper surface 26a of the flange portion 26, the protrude portions 311c, 321c are welded on the cylindrical portion 231f, 241f; and the edge portions of the through holes 36 are welded on the cylindrical portion 262; thereby, the oil pan 2 and the seal member 3 are strongly sealed and engaged.
  • twelve through holes 261 are formed on the flange portion 26; however, the number of the plurality of through holes 261 is not limited to this embodiment.
  • the plurality of through holes 261 may be formed as many as required to engage the oil pan structure 1 and the cylinder block.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)

Abstract

L'invention concerne une structure de carter d'huile pour un moteur à combustion interne. Ladite structure comprend: un carter d'huile ayant une partie de corps principal formant une chambre d'huile principale avec une ouverture principale à l'intérieur de celle-ci, et une partie supplémentaire formant une chambre d'huile supplémentaire avec une ouverture supplémentaire à l'intérieur de celle-ci, la partie supplémentaire étant formée d'un seul tenant avec la partie de corps principal; et un élément d'étanchéité venant en prise avec le carter d'huile, et comprenant une partie de cadre disposée sur la partie de corps principal pour former une ouverture d'élément d'étanchéité correspondant à l'ouverture principale, et une plaque latérale recouvrant l'ouverture supplémentaire de la partie supplémentaire.
PCT/JP2017/042830 2017-11-29 2017-11-29 Structure de carter d'huile WO2019106759A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2017/042830 WO2019106759A1 (fr) 2017-11-29 2017-11-29 Structure de carter d'huile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2017/042830 WO2019106759A1 (fr) 2017-11-29 2017-11-29 Structure de carter d'huile

Publications (1)

Publication Number Publication Date
WO2019106759A1 true WO2019106759A1 (fr) 2019-06-06

Family

ID=66664423

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2017/042830 WO2019106759A1 (fr) 2017-11-29 2017-11-29 Structure de carter d'huile

Country Status (1)

Country Link
WO (1) WO2019106759A1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5726606U (fr) * 1980-07-22 1982-02-12
JPS61178054U (fr) * 1985-04-25 1986-11-06
JPS62171648U (fr) * 1986-04-23 1987-10-30
JPS6319053U (fr) * 1986-07-22 1988-02-08
JPS636403Y2 (fr) * 1984-08-28 1988-02-23
JPH08484Y2 (ja) * 1990-04-25 1996-01-10 本田技研工業株式会社 オイルリリーフバルブ室構造
JP2006097690A (ja) * 2004-09-28 2006-04-13 Robert Bosch Gmbh 機関を運転するための方法及び機関
US20100126304A1 (en) * 2008-05-20 2010-05-27 Ibs Filtran Kunststoff-/Metallerzeugnisse Gmbh Seal for a Vessel Filled with Fluid

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5726606U (fr) * 1980-07-22 1982-02-12
JPS636403Y2 (fr) * 1984-08-28 1988-02-23
JPS61178054U (fr) * 1985-04-25 1986-11-06
JPS62171648U (fr) * 1986-04-23 1987-10-30
JPS6319053U (fr) * 1986-07-22 1988-02-08
JPH08484Y2 (ja) * 1990-04-25 1996-01-10 本田技研工業株式会社 オイルリリーフバルブ室構造
JP2006097690A (ja) * 2004-09-28 2006-04-13 Robert Bosch Gmbh 機関を運転するための方法及び機関
US20100126304A1 (en) * 2008-05-20 2010-05-27 Ibs Filtran Kunststoff-/Metallerzeugnisse Gmbh Seal for a Vessel Filled with Fluid

Similar Documents

Publication Publication Date Title
CN100460655C (zh) 发动机气缸体
US20100229817A1 (en) Air intake duct structure
US20100147250A1 (en) Piston for an internal combustion engine
CN100587249C (zh) 用于内燃机的汽缸体
WO2019106759A1 (fr) Structure de carter d'huile
US10954883B2 (en) Water jacket structure
JPH07197865A (ja) Ｖ型多気筒エンジンの吸気装置
US9664246B2 (en) Liquid sealed mount
EP1279871B1 (fr) Joint de culasse comportant une nervure périphérique
CN103883423A (zh) 盖罩的注油构造
EP1028247A2 (fr) Culasse pour un moteur à combustion interne
JP2011122478A (ja) 内燃機関のシリンダヘッドカバー構造
JPH07197848A (ja) 多気筒エンジンのシリンダヘッド
US7934480B2 (en) Sealing member and sealing structure
EP2604836A2 (fr) Capot en plastique de moteur à combustion interne
CN114482750B (zh) 开闭体用液封减震器
US6659058B2 (en) Intake system of a V-type engine
JP6264024B2 (ja) シリンダヘッド構造
US20190178202A1 (en) Piston Consisting Of An Inner Part And An Outer Part
JP6278788B2 (ja) オイルパン
US6382167B1 (en) Monoblock cylinder head
JPS6224777Y2 (fr)
WO2019161473A1 (fr) Couvercle pour réservoir
KR101157665B1 (ko) 엔진
JP3887698B2 (ja) 電気接続箱

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17933786

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 17933786

Country of ref document: EP

Kind code of ref document: A1