Denso Corporation

Nippondenso Co., Ltd.

Sumitomo Wiring System, Ltd.

Tatsuo Sakai

Masakazu Tanaka

Hiroyuki Usami

Kinji Hodaira

Mamoru Mabuchi

Yoshio Ebihara

Kiyoshi Nagata

Mitsuhiro Fujitani

Yasuo Matsushita

Kunio Nanba

Keiichi Yamashita

Katsuhisa Yamada

Kazuto Maeda

Akira Nabeshima

Koji Hashimoto

Hideo Kiuchi

Hiroshi Mori

Kenji Okabe

Kunihiro Umetsu

Takashi Koba

Yukihiro Sugiura

Katsuhisa Shimokawa

Kouji Izatani

Emission gas recycling equipment includes a passage for recycling a part of an emission gas and a control valve for controlling an amount of the part of the emission gas. The control valve includes: a housing having a pipe portion; a butterfly valve accommodated in the pipe portion rotatable in a first direction and a second direction; a seal ring for sealing a clearance; and valve open/close operation means for stopping the butterfly valve at the valve full close position after the valve open/close operation means operates the butterfly valve to open and to close equal to or more than one cycle across the valve full close position at the time when the engine stops or after the engine stops.

Emission gas recycling equipment having butterfly valve

A fuel supply system has a cover, a pump unit, and metal pipes. The cover and the pump unit are connected through the use of the metal pipes so as to be moved relatively each other. A case cover, covering the pump unit, has supporting portions, each of which has a through hole. Each metal pipe is inserted through the through hole and thereby guided to be moved in its axial direction inside the supporting portion. The supporting portion has a plurality of grooves. Therefore, sliding resistance between the metal pipe and the supporting portion is reduced, that is, the pump unit can be smoothly moved relatively to the cover.

Fuel supply system installed inside fuel tank

In a fuel supply device disposed in a fuel tank, a pump module is constructed with at least a fuel pump, a fuel filter and a pressure regulator, and is installed in a sub-tank. A filter case of the fuel filter has first ribs and second ribs, so that an axially position between the pump module and the sub-tank is set by the first ribs, and a circumferential position therebetween is set by the second ribs. Further, a fuel inlet of a jet pump is formed in an inner bottom surface of the sub-tank, and an inner surface of the fuel inlet of the jet pump is tapered. Therefore, a fuel outlet of the pressure regulator is guided while being connected to the fuel inlet of the jet pump. Accordingly, the fuel supply device can be assembled easily.

Fluid supply device

A fuel feed apparatus accommodates a sub tank. The sub tank includes a pump module The pump module generates vibration, and is supported by a supporting member and a suction filter. The suction filter is covered with a nonwoven fabric. The nonwoven fabric is used as an additional filter for removing debris in fuel drawn by the pump module. The supporting member and the nonwoven fabric have resilience. The pump module is mounted on the sub tank via the supporting member and the non woven fabric. Therefore, vibration of the pump module is not apt to be transmitted to the sub tank. Additionally, the supporting member need not to be rigidly formed, so that the supporting member can be manufactured easily.

Fuel feed apparatus having vibration damping structure

Exhaust gas is caused to flow through a bypass passage during an adsorption mode. At this time, an adsorbing member adsorbs harmful components, e.g. HC, of the exhaust gas. Also, exhaust gas is caused to flow through the bypass passage to thermally desorb the harmful component held at the adsorbing member during a desorption mode. A quantity of heat given from exhaust gas to the adsorbing member during the desorption mode is calculated based on an operation state of an engine. It is determined that the desorption of the harmful components has been finished when the quantity of heat given to the adsorbing member reaches a total quantity of heat required for totally desorbing the harmful components adsorbed by the adsorbing member.

Engine exhaust gas purifying system

A change-over valve unit has a change-over valve for switching a bypass passage and an exhausting passage disposed in parallel therewith. An adsorbent is disposed in the bypass passage to adsorb exhaust components. An actuator of the change-over valve is isolated from an adsorption cylinder by a pedestal. Furthermore, rotary shafts of the control mechanism of the change-over valve are positioned within the bypass passage of the adsorber when the change-over valve is positioned to open the main exhaust passage. Thus, the heat of the exhaust gas flowing through the main exhaust passage is not transmitted to the rotary shafts.

Change-over valve unit for switching exhaust gas passages and exhaust

In an automotive engine exhaust pipe having a main flow passage and a bypass flow passage, the exhaust gas flows through the bypass flow passage having an heater-provided catalyst when an engine starts. After a main catalyst reaches a catalytic activation temperature, a switching valve switches the exhaust gas to flow through the main flow passage. The main shaft is divided into a driven shaft inserted into a bearing hole and a driving shaft inserted into another bearing hole, and therefore, a total length thereof in an axial direction is shorter than a length of the main shaft without having segments. Therefore, even though the driven shaft and the driving shaft are deformed into the arch shape, a deformation amount thereof is reduced so that inner peripheries of the bearing holes are not rubbed against the shafts. Since the driving shaft is smaller in diameter than the driven shaft, even though a cross section of the driving shaft is elliptically strained, the inner periphery of the bearing hole is not rubbed against the driving shaft. As a result, since a clearance between the driving shaft and the bearing hole can be narrowed, the exhaust gas from the clearance can be prevented from leaking.

Exhaust pipe opening and closing apparatus

A fuel injector comprises, a fuel flow adjustment throttle for determining a flow rate of a fuel passing through the fuel injector, a first member having a cylindrical surface for defining partially the fuel flow adjustment throttle, and a second member including a first surface and a second surface both of which extend toward the first member and join each other at a pointed edge defining the fuel flow adjustment throttle together with the cylindrical surface of the first member, and at least one of which forms a space expanding gradually in a fuel flow direction.

Fuel injector

A connector block for injectors for an internal combustion engine comprises a rod-like main stem section of a heat-resistant rigid resin having a connector portion for a wire harness and a required number of injector connecting portions disposed at predetermined intervals that are molded as integral parts thereof, and tab-like terminals are made exposed from the connector portion for a wire harness and the injector connecting portions, and bus bars are insert molded in the rod-like main stem section for effecting an electrical connection between the connector portion and injector connecting portions, whereby an electrical connection is effected between a wire harness and a group of injectors. A receptacle junction terminal having upper and lower contact sections in which tab-like terminals are inserted for connection and adapted to be accommodated in a terminal accommodating chamber of the connector block is made by blanking a single plate material into a predetermined configuration and holding the plate material so blanked into a hollow quadrilateral prism, and at least a pair of cantilever-like elastic pieces are formed, respectively, on front and back walls of said quadrilateral prism in such a manner as to protrude upwardly therefrom, and the terminal accommodating chamber accommodates the junction terminal with the top portions of the elastic pieces of the junction terminal being in press contact therewith, while a space where the elastic pieces are allowed to be elastically flexible is being provided between the inner walls of the terminal accommodating chamber and the front and back walls of the junction terminal, respectively.

Growing community of inventors

Kariya, Japan

Tatsuo Sakai