Aisan Kogyo Kabushiki Kaisha

Tadao Horiuchi

Nobuo Suzuki

Takashi Nagai

Koichi Suda

Takeshi Fukaya

Satomi Wada

Mikio Hamada

Hironori Ueda

A fuel supply system includes a fuel pump and a housing that are disposed within a fuel tank . A damping material is disposed on an upper end portion of a sidewall of the housing . The damping material reduces the transmission of vibrations generated by the fuel pump from to the fuel tank to thereby prevent the fuel tank from vibrating. The damping material may include an elastic material having a specific gravity of 0.12 to 0.4. Alternatively, the damping material may include a fuel-resistant paper material.

Reduced vibration fuel supply systems

A fuel supply apparatus for engines of a multi-point injection system using fuel tanks of many sizes and shapes is disclosed. In the fuel supply apparatus, a pump device,is constructed of an electric motor-driven fuel pump,, a fuel filter,, and a pressure regulator,, which are contained in a housing integrally constructed of a first and second cases,and,. A suction port,of the pump device,communicates with a suction opening,of the fuel pump,, while a discharge outlet portion,of the pump device,communicates with a discharge port,through the fuel filter,. The discharge port,communicates with an inlet of the pressure regulator,. An outlet of the pressure regulator,communicates with a return port,of the pump device

Fuel supply apparatus

Fuel filter with return path for reducing electrical charge buildup

An apparatus for detecting a rotation of a rotational member. A core is disposed opposite to the rotational member. A coil of wire is disposed around the core. A permanent magnet, which is formed in a shaft of a symmetrically cut out cross section, is connected to the core. A bobbin is provided with a first cylindrical portion for receiving therein the core and winding the wire of the coil around the first cylindrical portion, and a second cylindrical portion integrally connected to the first cylindrical portion in co-axial relationship therewith. The second cylindrical portion is formed with cutout portions to provide a periphery corresponding to a periphery of the permanent magnet, and arranged to receive therein at least a part of the permanent magnet in co-axial relationship with the core. A case, which is formed in a cylindrical body for receiving therein the bobbin assembled with the core, permanent magnet and coil, defines a certain space between an outer surface of the second cylindrical portion at the cutout portions thereof and an inner surface of the case. A terminal electrically connected to the coil, is disposed in the space and fixed to the second cylindrical portion.

Method of making a electromagnetic rotation detector

The invention is directed to an apparatus for detecting a rotation of a rotational member. A core is disposed opposite to the rotational member. A coil of wire is disposed around the core. A permanent magnet, which is formed in a shaft of a symmetrically cut out cross section, is connected to the core. A bobbin is provided with a first cylindrical portion for receiving therein the core and winding the wire of the coil around the first cylindrical portion, and a second cylindrical portion integrally connected to the first cylindrical portion in co-axial relationship therewith. The second cylindrical portion is formed with cutout portions to provide a periphery corresponding to a periphery of the permanent magnet, and arranged to receive therein at least a part of the permanent magnet in co-axial relationship with the core. A case, which is formed in a cylindrical body for receiving therein the bobbin assembled with the core, permanent magnet and coil, defines a certain space between an outer surface of the second cylindrical portion at the cutout portions thereof and an inner surface of the case. A terminal electrically connected to the coil, is disposed in the space and fixed to the second cylindrical portion.

Growing community of inventors

Obu, Japan

Tadao Horiuchi