Patents Assigned to Mahle Filter Systems Japan Corporation
  • Patent number: 10787941
    Abstract: Disclosed is a structure for attachment of a drain nut to a synthetic resin cover. The cover has a nut engagement portion formed in an outer surface of the cover, a cylindrical engagement portion formed with a plurality of piece parts on an inner surface of the cover, and a stepped portion formed between the nut and cylindrical engagement portions. The drain nut has a nut portion engaged in the nut engagement portion, a female thread portion formed in the nut portion for screw-in of a drain plug, a cylindrical portion formed concentrically with the nut portion and engaged in the cylindrical engagement portion, a large-diameter portion formed between the nut and cylindrical portions and engaged in the stepped portion, with an O-ring held between the large-diameter portion and stepped portion, and a collar portion formed around the cylindrical portion and retained by front ends of the piece parts.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: September 29, 2020
    Assignee: MAHLE FILTER SYSTEMS JAPAN CORPORATION
    Inventors: Daizo Ito, Shin Yoshida, Atsushi Nonaka, Yuichi Kato
  • Patent number: 10731760
    Abstract: A gasket inserted into a gasket groove is formed of a gasket main body part positioned in the middle part thereof and first/second end face projection parts each formed in a tapered shape, projecting from corresponding ones of the ends of the gasket main body part. Each of pressure-contact surfaces of the gasket main body part is formed as an arc-shaped surface having a convex shape projecting toward a corresponding one of the inner side surfaces of the gasket groove. The rate of the sum of the sectional areas of the first/second end face projection parts to the whole sectional area of the gasket is 30% or less, and the rate of the curvature radius of each of the tip end surfaces of the respective first/second end face projection parts to the maximum width dimension of the gasket main body part is 15% or less.
    Type: Grant
    Filed: December 8, 2017
    Date of Patent: August 4, 2020
    Assignee: MAHLE FILTER SYSTEMS JAPAN CORPORATION
    Inventors: Shintaro Ishigami, Takashi Uchino
  • Publication number: 20200208917
    Abstract: Oil cooler is provided to include: a number of core plates each of which has three oil pass holes where oil flows and three cooling water pass holes where cooling water flows; heat-exchanging section where core plates are laminated to define inter-plate oil flow passage and inter-plate cooling water flow passage alternately between an adjacent pair of core plates, in which oil and cooling water can mutually independently flow in direction perpendicular to core plate lamination direction while changing its flow direction by U-turn thereby proceeding in core plate lamination direction as a whole; one end part located at one side of core plate lamination direction and provided with both oil inlet and oil outlet; and the other end part located at the other side of core plate lamination direction and provided with both cooling water inlet and cooling water outlet.
    Type: Application
    Filed: March 11, 2020
    Publication date: July 2, 2020
    Applicant: MAHLE FILTER SYSTEMS JAPAN CORPORATION
    Inventors: Hirotaka KOBAYASHI, Yasuaki SUZUKI, Masahiro ARIYAMA
  • Patent number: 10662833
    Abstract: An oil cooler includes flat tubes layered together with a clearance, wherein cooling water flows through the clearance. Each flat tube includes a first plate, a second plate, and a fin plate held between the first plate and the second plate. The first plate is recessed to form a fin plate accommodation portion accommodating the fin plate, wherein a thin portion is formed outside of the fin plate accommodation portion in a longitudinal direction of the flat tube. An oil port is provided at the thin portion. Each flat tube includes a guide wall at a lateral periphery thereof, wherein the guide wall faces the oil port in a width direction, and projects in a layering direction. The guide wall, the thin portion, and a lateral wall of the oil port form a nozzle portion to guide cooling water in the longitudinal direction.
    Type: Grant
    Filed: November 25, 2014
    Date of Patent: May 26, 2020
    Assignee: MAHLE FILTER SYSTEMS JAPAN CORPORATION
    Inventors: Naoki Ooi, Hirokazu Watanabe
  • Patent number: 10641555
    Abstract: A heat exchanger for a vehicle is mounted in a vehicle having a power train through which an engine coolant, an engine oil and a transmission oil flow and in which a flow rate of the engine oil and a flow rate of the transmission oil are different from each other. A first flow passage for causing the engine coolant to flow, a second flow passage for causing the engine oil to flow, and a third flow passage for causing the transmission oil to flow are formed through lamination of a plurality of plates. The heat exchanger includes a region where the first flow passage is adjacent only to that one of the second flow passage and the third flow passage through which a fluid flows at lower flow rate.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: May 5, 2020
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, MAHLE Filter Systems Japan Corporation
    Inventors: Daisuke Tokozakura, Takahiro Shiina, Satoshi Tominaga, Naoki Ooi, Katsuhiro Isoda
  • Patent number: 10619935
    Abstract: Oil cooler is provided to include: a number of core plates each of which has three oil pass holes where oil flows and three cooling water pass holes where cooling water flows; heat-exchanging section where core plates are laminated to define inter-plate oil flow passage and inter-plate cooling water flow passage alternately between an adjacent pair of core plates, in which oil and cooling water can mutually independently flow in direction perpendicular to core plate lamination direction while changing its flow direction by U-turn thereby proceeding in core plate lamination direction as a whole; one end part located at one side of core plate lamination direction and provided with both oil inlet and oil outlet; and the other end part located at the other side of core plate lamination direction and provided with both cooling water inlet and cooling water outlet.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: April 14, 2020
    Assignee: MAHLE FILTER SYSTEMS JAPAN CORPORATION
    Inventors: Hirotaka Kobayashi, Yasuaki Suzuki, Masahiro Ariyama
  • Patent number: 10583732
    Abstract: A transmission device for a hybrid vehicle including: a plurality of shift dog clutches each arranged to selectively engage the movable side gear of one of the shift gear rows with the other of the main shaft and the counter shaft; a main clutch disposed between the internal combustion engine and the main shaft; a first motor gear disposed to be raced with respect to a motor output shaft connected to the motor, and constantly interlocked with the main shaft; a second motor gear disposed to be raced with respect to the motor output shaft, and constantly interlocked with the counter shaft; a motor dog clutch arranged to selectively engage one of the first and second motor gears with the motor output shaft; and a controller configured to control actuations of the shift dog clutch, the main clutch, and the motor dog clutch.
    Type: Grant
    Filed: March 22, 2017
    Date of Patent: March 10, 2020
    Assignee: MAHLE FILTER SYSTEMS JAPAN CORPORATION
    Inventor: Haruo Iwano
  • Patent number: 10550803
    Abstract: Provided are a filter medium for a filter, which makes it possible to obtain a filter high in collection efficiency, low in pressure loss and long in filter lifetime, a method for producing the same, and a filter using the filter medium for a filter. A filter medium for a filter is used as a constituent member of a filter and composed of a wet type nonwoven fabric, wherein the filter medium for a filter has a multilayer structure of two or more layers, and there is no interface between the above-mentioned two layers.
    Type: Grant
    Filed: September 25, 2012
    Date of Patent: February 4, 2020
    Assignees: TEIJIN FRONTIER CO., LTD., Mahle Filter Systems Japan Corporation
    Inventors: Yuichi Hamada, Mitutosi Suzuki, Hiroyuki Ishii, Kenji Inagaki
  • Patent number: 10495031
    Abstract: A heater for a canister includes a heater case embedded within an adsorption material and sealed at a top, and a heater core having a heat generation element and installed in the heater case. The bottom of the heater case is fitted into a heater retaining hole of a cap member in a hermetically-sealed state, for enabling the heat generation element and terminals of the heater core to be completely separated from the gas atmosphere containing the adsorbed fuel components within an activated carbon region. A leaf spring having a heat conductivity is arranged between an outside surface of one of a pair of strip-shaped ceramic plates constructing part of the heater core and an inner wall surface of the heater case, for retaining the heater core in place within the heater case and for permitting heat transfer from the heat generation element to the adsorption material.
    Type: Grant
    Filed: October 31, 2016
    Date of Patent: December 3, 2019
    Assignee: MAHLE FILTER SYSTEMS JAPAN CORPORATION
    Inventors: Junpei Omichi, Shuichi Eguchi, Satoshi Seki
  • Publication number: 20190301396
    Abstract: A cylinder head cover is mounted on a cylinder head of an internal combustion engine to cover a camshaft supported by the cylinder head. The cylinder head cover includes a cover main body and a baffle plate. The cover main body includes a head mounting surface to be connected to the cylinder head and a bulging portion bulging away from the cylinder head farther than the head mounting surface. The bulging portion includes a recess that is recessed to approach the head mounting surface. The recess includes a bottom wall inclined with respect to a horizontal plane in a state in which the cover main body is mounted on the internal combustion engine. The baffle plate is joined to a surface of the bulging portion facing the camshaft at least at a section corresponding to the bottom wall of the recess.
    Type: Application
    Filed: March 21, 2019
    Publication date: October 3, 2019
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, MAHLE FILTER SYSTEMS JAPAN CORPORATION
    Inventors: Kae OHKI, Daizo ITO, Masanori SUDO
  • Patent number: 10422307
    Abstract: An intercooler (5) is received in an intercooler receiving portion (6) of an intake manifold (1) leaving a given space therebetween and longitudinally opposed walls (10a, 10b) of the intercooler receiving portion (6) are formed with ribs (11) to increase a mechanical strength thereof, so that, even when a heat exchanging device (5a) of the intercooler (5) is set in the intercooler receiving portion (6) having longitudinally opposed walls thereof placed close to the longitudinally opposed walls (10a, 10b) of the intercooler receiving portion (6), undesired contact or interference between mutually opposed ones of the longitudinally opposed walls is suppressed permitting a larger amount of intake air flow through a major portion of the heat exchanging device (5a) thereby causing increased cooling efficiency of the intercooler (5).
    Type: Grant
    Filed: July 17, 2013
    Date of Patent: September 24, 2019
    Assignees: NISSAN MOTOR CO., LTD., MAHLE FILTER SYSTEMS JAPAN CORPORATION
    Inventors: Osamu Hikiji, Tetsu Naito
  • Patent number: 10393064
    Abstract: A seal structure for an internal combustion engine comprising: a cover side seal member which extends on upper surface sides or lower surface sides of both of an engine main body section and a chain casing and pressed and held against a cover member; a casing side seal member arranged at left or right end section of one end surfaces of the engine main body section onto which the chain casing is attached and pressed and held against the chain casing; a receiving concavity formed to extend on a junction surface of the chain casing to the cover member; and an extremely thick connection block section formed integrally on one end section of the casing side seal member, fitted into and retained by the receiving concavity, and projected more toward the cover member side than a junction surface of the chain casing to the cover member in a free state.
    Type: Grant
    Filed: April 4, 2017
    Date of Patent: August 27, 2019
    Assignee: MAHLE FILTER SYSTEMS JAPAN CORPORATION
    Inventors: Daizo Ito, Atsushi Nonaka, Seiji Tani
  • Patent number: 10378827
    Abstract: A heat exchanger includes: the pair of the oil holes being positioned on an outer edge of one of the core plates, being positioned at symmetrical positions with respect to the center of the one of the core plates to sandwich the center of the one of the core plates, and being positioned to sandwich one of the fin plates along the first reference line, and the pair of the coolant holes being positioned on the outer edge of the one of the core plates, being positioned at symmetrical positions with respect to the center of the one of the core plates to sandwich the center of the one of the core plates, and being positioned to sandwich the one of the fin plates along the first reference line.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: August 13, 2019
    Assignee: MAHLE FILTER SYSTEMS JAPAN CORPORATION
    Inventors: Masahiro Ariyama, Satoshi Suzuki, Takuma Shibata, Kenji Yamashita, Katsuhiro Isoda, Yuki Koshiba
  • Patent number: 10371146
    Abstract: An electric pump includes an outer rotor rotatably disposed radially inward of a stator, the outer rotor including a plurality of permanent magnets in an outer circumferential surface thereof, a plurality of plate holding grooves being formed in an inner circumferential surface of the outer rotor; an inner rotor provided radially inward of the outer rotor, a plurality of slots being radially formed in an outer circumferential surface of the inner rotor; and a plurality of connecting plates each including a head portion and a radially-inner end portion, the head portion being formed in a substantially circular shape in cross section and fitted swingably into the plate holding groove, the radially-inner end portion being slidably fitted into the slot. Each of the plate holding grooves is located within a projection plane of the permanent magnet with respect to a circumferential direction of the outer rotor.
    Type: Grant
    Filed: September 12, 2016
    Date of Patent: August 6, 2019
    Assignee: MAHLE FILTER SYSTEMS JAPAN CORPORATION
    Inventors: Toshinobu Horimatsu, Haruo Iwano, Satoshi Masukura
  • Patent number: 10364761
    Abstract: A turbocharger (1) includes a turbine wheel (3) driven by exhaust gas, first and second compressor wheels (4, 5) coaxially coupled to the turbine wheel (3) via a shaft member (6), a compressor housing (8) accommodating the first and second compressor wheels (4, 5) and having defined therein a communication passage (17) through which air compressed by the first compressor wheel (4) flows to the second compressor wheel (5), and an electric motor (11) arranged in the communication passage (17) and using the shaft member (6) as a rotation shaft thereof.
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: July 30, 2019
    Assignee: MAHLE FILTER SYSTEMS JAPAN CORPORATION
    Inventors: Vijayakumar Sivaraman, Masamoto Hayashi
  • Patent number: 10364779
    Abstract: An air cleaner for an internal combustion engine is arranged to reduce intake noise. The air cleaner includes an air cleaner element for cleaning an intake air, and an elastic member for reducing intake noise by utilizing an inside space of the air cleaner. An inside space of the elastic member is in communication with the inside space of the air cleaner through a communication passage. Preferably, a surrounding space formed between the elastic member and a case portion for receiving the elastic member is opened to the outside.
    Type: Grant
    Filed: November 8, 2017
    Date of Patent: July 30, 2019
    Assignee: MAHLE FILTER SYSTEMS JAPAN CORPORATION
    Inventors: Katsuhisa Ohta, Yuichi Kato, Takafumi Shibata
  • Patent number: 10337398
    Abstract: Disclosed is a blowby gas treatment device for an internal combustion engine with a supercharger, the blowby gas treatment device comprising: a fresh air introduction passage wherein one end of the fresh air introduction passage is connected to an upstream side of the supercharger and the other end is communicated with a crankcase of the internal combustion engine; a first blowby gas passage wherein one end of the first blowby gas passage is connected to a venturi part provided in an upstream side of the supercharger in the intake passage and the other end is communicated with the crankcase; a first check valve being interposed in the fresh air introduction passage and preventing a flow from the crankcase side to the intake passage side; and a second check valve being interposed in the blowby gas passage and preventing a flow from the intake passage side to the crankcase side.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: July 2, 2019
    Assignee: MAHLE FILTER SYSTEMS JAPAN CORPORATION
    Inventors: Atsushi Nonaka, Daizo Ito, Terumoto Mochizuki, Akira Iijima, Takayuki Sakai
  • Patent number: 10309326
    Abstract: Disclosed is an evaporated fuel processing apparatus for an internal combustion engine including: a canister; and a purge passage supplying purge gas including evaporated fuel separated from the canister to an intake system therethrough; characterized in that the evaporated fuel processing apparatus further comprises a pulsation pump supplying the purge gas to the intake system by using a pumping action responding to intake pulsation generated in an intake passage of the internal combustion engine. The pulsation pump includes: a first chamber; a communication passage communicating with the first chamber and the intake passage; an elastic body being deformed depending on pressure fluctuation of the first chamber; a second chamber formed so as to surround the elastic body; a suction port provided with a check valve allowing inflow of gas into the second chamber, and a discharge port provided with a check valve allowing outflow of gas from the second chamber.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: June 4, 2019
    Assignee: MAHLE FILTER SYSTEMS JAPAN CORPORATION
    Inventors: Junpei Omichi, Yuya Yamashita
  • Patent number: 10281222
    Abstract: A heat exchanger includes: each of the fin plates having a V shaped or trapezoid corrugated shape, and including top walls positioned at top portions of the corrugated shape, bottom walls positioned at bottom portions of the corrugated shape, and foot portions each connecting one of the top walls and one of the bottom walls, each of the foot portions having a rectangular corrugated shape along one of the top walls and one of the bottom walls, and including stepped walls formed at a predetermined interval along the one of the top walls and the one of the bottom walls, and opening portions each formed in one of the stepped walls, and being an elongated through holes having a width equal to or smaller than a thickness of one of the fin plates.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: May 7, 2019
    Assignee: MAHLE FILTER SYSTEMS JAPAN CORPORATION
    Inventors: Masahiro Ariyama, Sachio Matsuda, Yuki Koshiba, Noriaki Matsumura, Kenji Yamashita, Katsuhiro Isoda
  • Patent number: 10234211
    Abstract: A core unit 1 of a heat exchanger includes a plurality of core plates that are stacked on one another to alternately constitute oil passages 10 and cooling water passages 11, in which oil that is heat-exchanged in the core unit 1 is guided to an outlet port 23 after passing through a top connecting passage 18 and an oil outlet passage L3, and in which part of the oil is led from a lower end of an upper/lower oil passage L2 is guided to the outlet port 23 through an auxiliary passage 24, so that the amount of oil flowing in the oil outlet passage L3 is reduced thereby reducing a passage resistance.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: March 19, 2019
    Assignee: MAHLE FILTER SYSTEMS JAPAN CORPORATION
    Inventors: Masahiro Ariyama, Kenji Wada, Tadashi Nishikoba