Toyota Jidosha Kabushiki Kaisha

Takashi Usui

Kazuhiro Asayama

Takeyuki Yabuuchi

Mutsumi Kanda

Toshimi Kashiwagura

Terutoshi Tomoda

Yoshihiro Tanaka

Tomoyoshi Kobayashi

Takeshi Kitamura

Yuichiro Hama

Tomoyuki Maeda

Hirokazu Yokoyama

Toshikazu Ito

Yoshinori Takeuchi

A mandrel has an outer peripheral member that shapes an outer peripheral surface of a mandrel, and a regulation member that regulates movement of the outer peripheral surface toward the radially inner side. A manufacturing device for a tubular member includes a radial movement mechanism that deforms the outer peripheral surface by actuating the regulation member into the outer peripheral surface in a winding shape and the outer peripheral surface in a separable shape, the separable shape being obtained by moving the outer peripheral surface in the winding shape toward the radially inner side and allowing the mandrel and the tubular member to be separated in the axial direction of the mandrel.

Manufacturing device for manufacturing tubular member constituting high-pressure tank

There is provided a high-pressure tank manufacturing method that ensures a shorten heating period compared with a conventional one and eliminates a need for taking out a material for heating after heating. A high-pressure tank manufacturing method includes: disposing a conductive heating material on an outer periphery of a resin liner; winding a conductive fiber with which thermosetting resin is impregnated around the outer periphery of the resin liner on which the heating material is disposed; and heating the heating material and the fiber on the outer periphery of the resin liner by induction heating to harden the thermosetting resin.

High-pressure tank manufacturing method

A method for manufacturing a high pressure tank capable of uniformly heating a thermosetting resin in a short time is provided. A method for manufacturing a high-pressure tank including: a step (a) of preparing a tank intermediate product including a fiber-reinforced resin layer formed by winding a carbon fiber impregnated with a thermosetting resin around a liner including a cap attached thereto; and a step (b) of performing a process for thermosetting the fiber-reinforced resin layer of the tank intermediate product by induction-heating the fiber-reinforced resin layer using induction-heating means, in which: the induction-heating means includes first induction-heating means for induction-heating a trunk part of the tank intermediate product and second induction-heating means for induction-heating a dome part of the tank intermediate product; and a temperature of the trunk part of the tank intermediate product and a temperature of the dome part thereof are controlled independently.

Method for manufacturing high-pressure tank

A fuel injection pump is provided. The fuel injection pump includes a valve holder, a plunger, an inlet valve, an outlet valve, and a relief valve. The valve holder includes a pump chamber and a seat. The plunger configured to pressurize or depressurize the pump chamber. The inlet valve, the outlet valve, and the relief valve are arranged in an interior of the valve holder. The relief valve is provided on a downstream side of the outlet valve. The pump chamber is formed between the inlet valve and the outlet valve. The seat has a discharge passage and a return passage. The return passage is configured such that the fuel flows through the return passage from the downstream side of the outlet valve to an upstream side of the relief valve. The discharge passage and the return passage are formed offset from each other in the seat.

Fuel injection pump

In a fuel pump that includes a pump housing () that has fuel passages (), a plunger () that is movably housed in the pump housing (), a fuel pressurizing chamber () that is formed in the pump housing () and draws in fuel via one of the fuel passages () that is on the intake side of the fuel pressurizing chamber (), pressurizes the fuel that has been drawn in, and discharges the pressurized fuel via the other fuel passage () that is on the discharge side of the fuel pressure chamber (), in response to movement of the plunger (), and valve elements () that are arranged in the fuel passages () near the fuel pressurizing chamber (), each of the valve elements () has a reed valve body () arranged in the fuel passage () on the intake side of the fuel pressurizing chamber () or the fuel passage () on the discharge side of the fuel pressurizing chamber (); and an operating member () that applies operating force in at least one of a valve opening direction or a valve closing direction to the reed valve body () is provided in the pump housing ().

Fuel pump with discharge control

Provided is a fuel pump comprising: a pump body; a plunger reciprocatably displaceable with respect to the pump body; and a plurality of valve elements inclusive of a suction valve to allow the fuel to be sucked into the fuel pressurizing chamber and a discharge valve to allow the fuel to be discharged out of the fuel pressurizing chamber, in which the pump body comprises a tubular valve retention member to retain the plurality of valve elements, a cylinder member to slidably retain the plunger, and an outer shell member having an inner wall surface facing an outer surface of the valve retention member, the inner wall surface and the outer surface of the valve retention member collectively forming a suction gallery chamber.

Fuel pump

A fuel pump which can suppress fuel bubbles from being sucked into a fuel pressure chamber, and can achieve a stable fuel pressure property. The fuel pump has a pump body formed with a suction passage and a pump operation chamber, and a pressure pump mechanism to pressurize and discharge fuel. The pump body has a lower side wall portion and an upper side wall portion respectively at the vertically lower and upper sides of the inner wall portion forming a suction gallery chamber partly forming the suction passage. The pressure pump mechanism has a valve retaining member having an insertion portion inserted into the suction gallery chamber. The insertion portion has internal suction inlets through which the fuel is sucked from the suction gallery chamber into the pump operation chamber, the internal suction inlets being positioned in the intermediate height area in the suction gallery chamber.

Fuel pump and fuel supply system of internal combustion engine

A pulsation damper mounted in a fuel chamber () of a high-pressure fuel pump () is provided with a diaphragm () having a flat section () displaced when fuel pressure is applied thereto, a pump cover () for supporting the diaphragm (), and a gas chamber () formed by the diaphragm () and the pump cover (). Pressure pulsation occurring in the fuel chamber () is suppressed by displacement of the flat section (). The diaphragm () is formed in a closed-bottomed tubular shape with the flat section () located at the bottom and has a projection () provided to the periphery of the flat section () and projecting to the side opposite to the pump cover (). A tubular peripheral section extending from the outer periphery of the projection () so as to be vertical to the flat section () is fitted over the pump cover (). The externally fitting portion of the tubular peripheral section is a joint section () joined to the pump cover ().

Pulsation damper

A roller lifter including a roller that is rotatably supported and a body that supports the roller, the body including: a base portion in the form of a flat plate; a roller holding portion in the form of a pair of opposing plate-shaped portions that are formed by bending towards one of plate surfaces of the base portion, the roller holding portion being configured to hold the roller between the plate-shaped portions; and a guide portion in the form of a plate-shaped portion formed by bending towards the other one of the plate surfaces of the base portion and also formed by curving so that the plate-shaped portion follows a cylindrical surface shape in which a direction perpendicular to the plate surface of the base portion is the axial direction of the cylinder, the guide portion being configured to form a guide surface in a shape that follows the cylindrical surface shape.

Roller lifter, roller lifter production method and liquid pump

A direct-fuel-injection-type spark-ignition internal combustion engine has an ignition plug, a cavity formed in an upper wall of a cylinder, a fuel injection valve that injects fuel so that most of the fuel strikes a side wall of the cavity at an acute angle with respect to a tangent to the side wall at the point where the fuel strikes it, and a fuel guide portion that is provided in the side wall of the cavity and that guides most of the fuel to the vicinity of the ignition plug. The direct-fuel-injection-type spark-ignition internal combustion engine is able to realize a good stratified charge combustion by reliably positioning a major portion of combustible mixture in the vicinity of the ignition plug at the time of ignition.

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Toyota, Japan

Takashi Usui