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Aisan Kogyo Kabushiki Kaisha Patents
Assignee:
Aisan Kogyo Kabushiki Kaisha
Address:
Obu-shi, Aichi-ken, JP
No. of patents:
303
Patents:


1 2 3 4 5 6 7


Patent Number Title Of Patent Date Issued
7474024 Electronic control unit and electric pump January 6, 2009
An electronic control unit 10 may comprise a case 12, a board 23 accommodated inside the case 12, and electronic components (25, 29, 31) mounted on the board 23. An opening 13 may be formed on one face of the case 12 opposite one of the faces of the board 23. The case 12 may be fille
7464692 Intake air control valves December 16, 2008
An intake air control valve has a bore defining member and a butterfly-type valve member that includes a shaft and a valve body. The valve body has a pair of valve portions joined to the shaft and rotatable between a fully closed position and a fully opened position; Each of the valv
7458367 Canister December 2, 2008
A canister is taught that includes a container 10 containing granular adsorbent materials 30 that can adsorb fuel vapor generated from a fuel tank, and a plate-shaped dividing member 40, 45, 48, 65 and 72 that is disposed in the container 10 in order to carry the adsorbent materials
7455045 Fluid flow control device for internal combustion engine November 25, 2008
An intake apparatus 100 includes a bore 102 and a throttle valve 104. A coating film 110 in which a lipophilic component and an oil-repellent component are dispersed is formed on at least one of an outer peripheral end surface 104a of the throttle valve 104 and a facing surface 102a of
7441542 Butterfly valves and intake air control devices for internal combustion engines October 28, 2008
The present invention includes a butterfly valve that has a resin valve body and a shaft. The shaft includes a first shaft member and a second shaft member. The first and second shaft members are integrated with the valve body. The first and second shaft members are spaced from each othe
7438062 Flow passage switching valve October 21, 2008
A flow passage switching valve provided with a swing arm type valve element comprises a housing formed with a first passage communicated with an inlet port, a second passage communicated with an outlet port, a bypass passage for providing communication between the first passage and t
7438048 Fuel injection amount control apparatus for internal combustion engine October 21, 2008
An object is to prevent deterioration in both exhaust emission and fuel efficiency by suitably combining OTP boosting with power boosting. An electronic control unit (ECU) 30 of the present invention is arranged to control a fuel injection amount of an injector 7 to an engine 1 according
7438026 Cylinder block and internal combustion engine October 21, 2008
In a cylinder block of an internal combustion engine, a water jacket in which coolant is circulated is formed around cylinder bores. In the cylinder block, an introduction passage, through which the coolant is introduced from the outside of the water jacket to the inside of the water
7428892 Electronically controlled throttle valve system September 30, 2008
In an electronically controlled throttle valve system, a case of a DC motor and a valve housing forming a throttle body are mutually different in material and shape. Specifically, the valve housing is made of synthetic resin easy to be deformed and the case is made of metal hard to b
7418944 Electronic throttle control apparatus September 2, 2008
An electronic throttle control apparatus includes: a motor; a throttle valve which is driven by the motor to open and close; a throttle sensor for detecting an actual opening angle of the throttle valve. This electronic throttle control apparatus is arranged to control an opening ang
7389765 Electrically controlled throttle apparatus June 24, 2008
An electrically controlled throttle apparatus comprises a throttle valve for controlling an amount of intake air to be supplied to an internal combustion engine; a throttle body which houses the throttle valve; a motor for driving the throttle valve; and a throttle sensor for detecting
7363803 Failure diagnostic system for fuel vapor processing apparatus April 29, 2008
In a failure diagnostic system for a fuel vapor processing apparatus, a processing flow path comprising a vapor line, a canister and a purge line is closed with a vapor control valve and a purge control valve. The interior of the processing flow path is reduced in pressure or pressur
7305958 Intake manifold December 11, 2007
An intake manifold including a collecting pipe and a plurality of branch pipes comprises a single gas intake port, a gas outlet port opening into each branch pipe, and a gas passage extending to be divided into more than one branch passages from the gas intake port to each gas outlet
7279095 Fuel supply device October 9, 2007
Fuel supply device (10) may comprise fuel pump (20) and suction filter (40) attached to a fuel intake port (36) of fuel pump (20). Suction filter (40) may have a sheet-shaped filter body (38) and an attaching member (29). Filter body (38) has an internal filter structure (40a, 40b),
7278594 Fuel injector October 9, 2007
A fuel injector 10 may comprise a valve body 14 having a fuel path, a valve seat 23 fixed to a downstream end of the valve body, and a valve 25 that opens and closes a fuel injection hole of the valve seat 23. The valve may be housed within the valve body in a manner allowing sliding.
7278393 Direct injection type fuel injection device and fuel injection control device for internal combu October 9, 2007
A fuel injection device is provided with a fuel injection valve for injecting fuel into a combustion chamber and an air injection valve for the injection of air into the combustion chamber. One fuel injection orifice which opens into the combustion chamber is provided correspondingly
7278381 Cooling structure of cylinder block October 9, 2007
A cooling structure for uniformly cooling a bore wall of a cylinder block using a cooling medium, the bore wall surrounding plural bore regions, includes a water jacket portion which is provided so as to surround an entire outer periphery of the bore wall, and which is supplied with the
7278380 Cooling structure of cylinder block October 9, 2007
A cooling structure for uniformly cooling a bore wall of a cylinder block using a cooling medium, the bore wall surrounding plural bore regions, includes a water jacket portion which is provided so as to surround an entire outer periphery of the bore wall, and which is supplied with the
7276129 Surface treating methods of titanium parts October 2, 2007
Surface treating methods of a titanium part may include the steps of determining an effective thickness of a hard oxide film to be formed on a surface of the titanium part, determining an effective surface roughness of the hard oxide film, and oxidation treating the surface of the ti
7270102 Resin intake manifold September 18, 2007
A resin intake manifold is provided with two separated bodies manufactured by connecting protrusions of weld portions of the separated bodies to each other in accordance with a vibration welding, and a cover wall in which one of the weld portions is arranged in an inner side or an outer
7264440 Fuel pump September 4, 2007
A fuel pump in which fuel can pass smoothly through through-holes of an impeller is taught. Through-holes communicate concavities formed in upper and lower faces of the impeller. These through-holes are formed at an inner side region within the concavities. When the impeller rotates, the
7244094 Low noise impeller pumps July 17, 2007
An impeller pump for a fluid includes a rotary impeller (10; 20) and a pump casing (4). The pump casing defines a first pump channel (51) and a second pump channel (71). The impeller is disposed within the pump casing and opposes to the first pump channel and the second pump channel,
7225781 Methods for surface treating engine valves and engine valves treated thereby June 5, 2007
The present invention teaches a method for surface treating an engine valve made from titanium or titanium alloy in order to form a hardened coating having a high level of adhesion to the surface of the engine valve, and also having improved abrasion and impact resistances. The metho
7216625 Throttle control devices May 15, 2007
A sensor for a throttle control device. The throttle control device includes a throttle body. A throttle valve is disposed within an intake air channel defined within the throttle body. A speed or gear reduction mechanism is coupled between a motor and the throttle valve. A sensor de
7216611 Cooling structure of cylinder block May 15, 2007
A cooling structure of a cylinder block includes a water jacket portion which is provided so as to surround an entire outer periphery of the bore wall; a water jacket spacer which is inserted in the water jacket portion; and a gasket which is provided in an upper portion of the cylin
7213579 Fuel pump and method of manufacturing an armature for the fuel pump May 8, 2007
An axial length of the fuel pump is reduced, and the fuel pump is miniaturized, without reducing pumping performance.A space G is formed between coils 19 and the shaft 7 at the upper side of the core 11, and the lower portion of the commutator 8 is inserted into the space G. As a res
7210465 Fuel supply device for fuel returnless system May 1, 2007
A fuel supply device for a fuel returnless system is disposed in a fuel tank and includes: a fuel pump that draws, pressurizes, and discharges fuel in the fuel tank; a pressure regulating valve that regulates the pressure of the pressurized fuel and drains a surplus of the pressurized
7210451 Throttle control devices May 1, 2007
A throttle control device includes a motor coupled to the throttle shaft, so that the throttle valve rotates to open and close an intake air channel as the motor is driven. A detection device serves to detect the degree of opening of the throttle valve and includes a pair of magnets
7207545 Throttle bodies with throttle valves actuated by motors April 24, 2007
A throttle body (1) includes a throttle casing (2) and a motor casing (8). The throttle casing has a first main body (3) and a throttle valve (4) disposed within the first main body. The first main body is made of resin. The motor casing (8) has a second main body (9) and a motor (11)
7207320 Fuel pump unit April 24, 2007
A fuel pump unit (1) may comprise a fuel filter (10) and a fuel pump (30). The fuel filter (10) may comprise frames (14, 20) and filters (15, 22) that seal openings (16, 21) of the frames. A closed space (internal space) may be formed by the frames and the filters. The fuel pump (30)
7207313 Fail-safe air induction control apparatus April 24, 2007
A fail-safe mechanism of an air induction control apparatus for automotive engines is provided which is designed to hold a throttle valve at a middle position when a valve actuator has failed to move the throttle valve. The fail-safe mechanism includes a middle position hold stopper,
7201151 Fuel tank unit April 10, 2007
A fuel tank unit including a fuel tank, a fuel pump, and a pad. The fuel pump may be attached to the bottom of the inside of the fuel tank, and the pad is preferably positioned between the fuel tank and the fuel pump, and may be made from rubber. The fuel tank may have a flat-box shaped
7137614 Valve devices for controlling flow of intake air November 21, 2006
A valve device controls a flow of intake air within a surge tank connected to an engine. The surge tank is divided into a plurality of tank chambers by a partition wall disposed within the surge tank. The valve devices include a valve body and a valve member. The valve body has a frame
7137363 Cooling structure of cylinder block November 21, 2006
A cooling structure of a cylinder block includes a water jacket portion which is provided so as to surround an entire outer periphery of the bore wall; a water jacket spacer which is inserted in the water jacket portion; and a gasket which is provided in an upper portion of the cylin
7128038 Intake device for an internal combustion engine October 31, 2006
An intake device for an internal combustion engine includes a throttle body (1) that forms an intake passage (1a). A throttle valve (2) is arranged within the intake passage. A pipe member (26) is connected to the throttle body, wherein the pipe member forms a communication passage (
7117857 Fuel supply system for outboard motor October 10, 2006
An outboard motor fuel vapor separator-venting system that vents fuel vapor from a fuel vapor separator through a vapor relief valve. The vapor relief valve allows vapor to gradually be delivered from the vapor separator to an air induction system depending on the amount of air enter
7117856 Fuel delivery systems October 10, 2006
A fuel delivery system for delivering fuel from a fuel tank to an engine includes a reservoir disposed within the fuel tank and a fuel pump, such as an electrically driven fuel pump, operable to draw fuel from within the reservoir. The fuel pump has a first port and a second port that
7114491 Fuel supply apparatus and vapor separator in outboard engine October 3, 2006
With a low-pressure pump, fuel is supplied to a vapor separator comprising an air discharge port and a ball valve for closing the air discharge port in association with a rise in fluid level of the fuel supplied to the vapor separator. When the fuel is filled into the vapor separator
7082963 Gas pressure reduction valve August 1, 2006
A first retainer and a second retainer are provided between a diaphragm and an upper housing. A first spring urges the diaphragm downward between the first retainer and the diaphragm. A second spring having an outer diameter smaller than that of the first spring urges the diaphragm d
7082915 Resin intake manifold August 1, 2006
A resin intake manifold is provided with an integrally formed base member. The base member has a U-shaped curved distribution passage lower surface wall portion, an engine mounting flange portion formed in one end of the distribution passage lower surface wall portion, and a surge tank
7071800 Actuators with integrated circuits July 4, 2006
An actuator includes a coil and an IC attached to a core. The coil produces a magnetic field and the core provides a path for the magnetic field. A rotor is rotatably mounted within the core, so that the rotor rotates in response to the magnetic field produced by the coil. The IC is
7063502 Fuel pump June 20, 2006
A fuel pump prevents pressurized fuel from being pulled into a clearance between an outer circumference face of an impeller and an inner circumference face of a pump case, thereby allowing the delivery of the pressurized fuel from a pump body side to a pump cover side through through
7055369 Gas detector having clog-resistant intake filter and protective cap June 6, 2006
A gas detector having an intake to let in the gas to be detected and detecting the gas let in through the intake by a gas sensor, in which a porous film is horizontally arranged over the gas intake, in order to prevent the gas permeability of the porous film from being affected by wa
7051616 Accelerator device May 30, 2006
An accelerator device includes an accelerator arm 12 provided with an accelerator pedal 11, a support case 13 internally holding and supporting an arm base part 12a through a support shaft 14, a return spring 16 and 17 for urging the arm 12 to rotate in a returning direction to return th
7047952 Canister May 23, 2006
A canister comprises a tank port communicated with an upper air chamber in a closed fuel tank, a purge port communicated with an intake passage of an engine, an atmospheric port opened to the atmosphere, and a main adsorbent chamber containing activated carbon, and the canister is fu
7047936 Throttle bodies and methods of manufacturing such throttle bodies May 23, 2006
A throttle body comprising a main body defining a cylindrical intake air channel and including a valve member movable between an open and a fully closed position. The valve seal surface and a contact surface are configured such that the valve seal surface sealingly contacts with the
7044405 Fuel injectors May 16, 2006
It is, accordingly, an object of the present teachings to provide fuel injectors that can prevent leakage of noise, which is caused by contact of the valve with the valve seat, to the outside of the fuel injector. a representative injector may comprise a fuel passage, a valve, a valve
7042212 Rotational angle sensors May 9, 2006
A rotational angle sensor detects a rotational angle of a rotary member based on a magnet field produced across the rotary member by a pair of magnets. At least one magnetic detection device is disposed within a holder and serves to detect the magnetic field and to output a signal re
7036359 Failure diagnostic system for fuel vapor processing apparatus May 2, 2006
In a failure diagnostic system for a fuel vapor processing apparatus, a processing flow path comprising a vapor line, a canister and a purge line is closed with a vapor control valve and a purge control valve. The interior of the processing flow path is reduced in pressure or pressur
7032569 Throttle control devices April 25, 2006
A throttle control device includes a throttle body that defines an intake air channel. A motor is coupled to a throttle shaft. As the motor is driven, the throttle valve rotates to open and close the intake air channel. A detection device serves to detect a degree of opening of the t
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