Nippondenso Co., Ltd.

Toyota Jidosha Kogyo Kabushiki Kaisha

Nippon Soken, Inc.

Hajime Akado

Yoshihiro Taki

Susumu Miyakawa

Akihide Yamaguchi

Toshiaki Fukuta

Noriya Matsumoto

Yoshiro Uchida

Satoshi Inukai

Yoshihiko Oya

Akira Yamashita

Yoshitaka Nishio

Masaei Nozawa

Yutaka Kawashima

Hideki Matsuura

Shuji Yamaguchi

Suminobu Ootsubo

Hiromichi Sugie

Keizo Funae

Yukihisa Takeuchi

Toshiaki Nakayama

Koji Numata

Kunio Okamoto

Yoshiyuki Kago

Fumio Asakura

Mitsuyoshi Teramura

Takao Nonoyama

Hideo Kamo

Yukiya Sassa

Toshiro Harada

Kenichi Kubota

Tomohide Nishino

Atsushi Sakaida

Yasuhiko Nakamura

Tsutomu Tomita

Yasuou Yamazaki

Takahiro Shibakawa

Atsushi Okajima

Hitoshi Harada

Kazunori Nakane

Toshiharu Hasebe

Hideharu Kato

Yasuhide Okamoto

Kenji Hikida

Kazumi Nonoyama

Takanari Okumura

Hiroshi Ueda

Takemasa Tamura

A fragrance supplying apparatus for a vehicle for supplying an interior of an air-conditioning duct of the vehicle with a fragrance or deodrant so that the fragrance or deodrant is carried by a flow of air from a blower of the air-conditioning system into the cabin of the vehicle, the fragrance supplying apparatus including a fragrance supplying apparatus having control valves for controlling the supply of the fragrance or deodorant into the air-conditioning duct; a random number producing unit for producing random numbers; and a control unit for controlling the control valves of the fragrance supplying unit based on the random numbers to set varying patterns of supply and cessation of the fragrance or deodorant.

Fragrance supplying apparatus for vehicle

A method for producing a filter element has three steps. In first step, a filter body including at least one first passageway and at least one second passageway or clearance extends closely and substantially parallel to the first passageway and communicate with first hole through a filter material is formed. In second step, a sheet-shaped thermoplastic adhesive is arranged on one end of the filter body, the first passageway and the second passageway or clearance are open at the one end of the filter body. In third step, the sheet-shaped thermoplastic adhesive is melted by heating to close and seal an end of the second passageway or clearance at the one end of the filter body so that the passageways do not deform.

Method for producing filter element

Additive is supplied to the lubricating oil by an additive supplying pump according to TBN of the lubricating oil which is detected by a TBN sensor which detects the current produced by the impressed voltage. TBN is kept between 0 and 2.

Method and apparatus for adding additives to lubricating oil

A filter element which is improved in filter performance and suitable for use in various types of filters, and a manufacturing method thereof. In the filter element, a multiplicity of tubes each formed of a filtering material and having a substantially circular shape in cross-section are arranged side by side into a tubular assembly with the axes of the tubes lying parallel to one another; inter-tube openings are closed at one end of the tubular assembly which end serves as the inlet side for a fluid to be filtered, whereas intra-tube openings are closed on the opposite end of the tubular assembly; and the total cross-sectional area of all the inter-tube openings is set smaller than the total cross-sectional area of all the intra-tube openings, but larger than the minimum cross-sectional area of a path through which the fluid is supplied to the tubular assembly. Specifically, one or more filtering materials including a plurality of tubes each having a substantially circular shape in cross-section and connecting portions to interconnect the adjacent tubes are rolled into a spiral shape to provide the tubular assembly with the axes of the tubes arranged side by side parallel to one another.

Filter element and manufacture method thereof

A filter element which is improved in filter performance and suitable for use in various types of filters. In the filter element, a multiplicity of tubes each formed of a filtering material and having a substantially circular shape in cross-section are arranged side by side into a tubular assembly with the axes of the tubes lying parallel to one another; inter-tube openings are closed at one end of the tubular assembly which end serves as the inlet side for a fluid to be filtered, whereas intra-tube openings are closed on the opposite end of the tubular assembly; and the total cross-sectional area of all the inter-tube openings, is set smaller than the total cross-sectional area of all the intra-tube openings, but larger than the minimum cross-sectional area of a path through which the fluid is supplied to the tubular assembly. Specifically, one or more filtering materials including a plurality of tubes each having a substantially circular shape in cross-section and connecting portions to interconnect the adjacent tubes are rolled into a spiral shape to provide the tubular assembly with the axes of the tubes arranged side by side parallel to one another.

A device for detecting a transmissivity of a substance utilizing a transmitted light value, which comprises a light emitting element and a photo detecting element. The light emitting element and the photo detecting element are spaced from each other at a predetermined distance so that a transmitted light value of a substance passing through the space is detected as an amount of light transmitted therethrough. The photo detecting element further comprises a photo oscillator circuit including the photo detecting element as one component thereof and outputs a signal having characteristics selected from a cycle and a frequency corresponding to the transmitted light value, and when the condition of a substance exceeds a predetermined reference level, such information is displayed at a display unit. Further, the device carries out a detecting and discriminating operation when a temperature of a substance is at a level lower than a maximum temperature at which each component of the detecting circuit will not work effectively. The device is also provided with a detecting unit in which the light emitting element and the photo detecting element are kept firmly in contact with each other, with a spacer placed therebetween, by an external force caused by a spring, to make the space provided therebetween constant regardless of any deformation of any component of the device caused by heat or aging.

Device for detecting a transmissivity of a substance

A filter element has a generally ring-like structure which basically comprises a plurality of generally radial sections circumferentially arranged to define a central space. Each radial section has a plurality of circumferentially zigzag pleats formed from a ribbon of a filtering sheet material. The radial sections are circumferentially connected such that radially inwardly open generally radial spaces and radially outwardly open generally radial spaces are defined. The radially inwardly open radial spaces are closed at the axially opposite ends by end walls. Fluid to be filtrated can enter the radially outwardly open radial spaces and then passes through the zigzag pleats into the radially inwardly open radial spaces and thus into the central space. The ring-like structure has many modifications.

Filter element with zig-zag pleats

A filter device includes an annular filter element having a plurality of wave portions extending outwardly, a central cup-shaped portion arranged at an inner periphery of the filter element, a support frame arranged at an outer periphery of the filter element, and a connecting portion at which both sides of the filter element are abutting on and connected with each other. The central portion, the support frame and the connecting portion are made of synthetic resin and formed as a unitary structure, wherein the outermost and innermost peripheral ends of the filter element are respectively embedded in and held by the support frame and the central portion.

Annular wave filter device

The filter element of the present has a plurality of wavy portions which are so arranged that a plurality of wavy portions make a generally ring like structure. In order to reduce the pressure drop when the fluid flows through the filter element, the present filter element has a special shaped radial gaps. Namely, the width of a first radial gaps, which is formed within adjacent wavy portions and which connects with an inner space formed at the center of the generally ring like structure, increases from the outer end thereof to the inner end thereof. The width of a second radial gap, which is connected with outer atmosphere, decreases from the outer end thereof to the inner end thereof. Both axial ends of the wavy portions are covered with the adhesive sheet on which adhesive layer is cladded.

Zig zag filter element

Filter element

Method of manufacturing a filter device

A fluid cleaner system including a filter element of substantially cylindrical construction corrugated in a cross-section including the axis thereof to allow a fluid to flow axially from one end to the other end. The filter element is supported and sealed by support means and sealing means and mounted in a case and a cap. The support means and sealing means are simple in construction and yet allow the filter element to fully perform its function.

Fluid filter element and support

A cyclone type air cleaner has a cylindrical housing having a tangential air inlet formed in the peripheral wall of the housing and an air outlet formed in the upper end wall thereof. A downwardly converging frusto-conical member having a central opening is disposed in the housing coaxially therewith to divide the interior of the housing into a first or upper swirling chamber and a lower space in which a cylindrical or annular member is disposed coaxially with the central opening to define therein a second or lower swirling chamber communicated with the upper swirling chamber through the central opening. The cylindrical or annular member cooperates with the housing peripheral wall to define a dust-collecting chamber communicated with the lower swirling chamber through an annular gap defined between the frusto-conical member and the cylindrical or annular member. An axial flow type filter element is disposed between the upper swirling chamber and the air outlet.

Cyclone type air cleaner

A filter means for filtering fluid comprises a first filter section and a second filter section. The filter means is formed by using a folded sheet material having a trapezoid or a sector form. The second filter section of the filter means has a filtering performance different from that of the first filter section of the filter means.

Filter means

A filter element of the cylindrical shape for filtering fluid having a constructional form including two-dimensional wave forms radially spreading from the axis of the cylindrical filter element in the form of annular rings, to allow the fluid to flow axially of the filter element. The filter element is produced by using a sheet of filter material in the form of a trapezoid or a segment.

Filter element for filtering fluid and method of producing same

Growing community of inventors

Anjo, Japan

Hajime Akado