Aisin Seiki Kabushiki Kaisha

Toyota Jidosha Kogyo Kabushiki Kaisha

Masashi Ban

Jiro Kizaki

Tomio Tachino

Hiroshi Uemura

Masakazu Ishikawa

Yoshihisa Kato

Toshiaki Okamoto

A fluid reservoir for a master cylinder has intergral flanges at the rear and front portions thereof which are able to absorb expansion and contraction due to the change in the surrounding temperature.

Fluid reservoirs for master cylinders

A fluid reservoir for a vehicle tandem master cylinder is made of a resin material and provided therein with first and second fluid chambers for supplying fluid to the cylinder body chambers. A pinched-in portion between the first and second fluid chambers forms a wall between two fluid chambers of reduced area.

Fluid reservoirs for tandem master cylinders

A flow control apparatus for a brake master cylinder of a vehicle includes a valve chamber formed within a plug threadably secured to an outlet port of the master cylinder which is fluidically connected to the wheel cylinders of the vehicle, a flow control valve movably disposed within the valve chamber having projecting portions on one face of a flat portion thereof for providing a gap between the valve chamber wall and the valve in one end position of movement of the valve and a flow passage through the flat portion, a spring retainer secured within the inner end of the plug having a central opening for slidably receiving a central extension of the other face of the valve flat portion and a plurality of flow passages therethrough, and a compression spring between the other face of the valve portion and the spring retainer for normally maintaining the valve against the valve chamber wall with the projecting portions abutting thereagainst, whereby brake pedal depression and release alters the quantity of fluid flowing between the master cylinder and the wheel cylinders.

Flow control apparatus of master cylinder

In a combined reservoir made of a plastic material such as nylon or polythene and master cylinder housing assembly, a bolt is screwed into coaxial openings of the housing and the reservoir to fasten each other. A metallic sleeve is secured to the opening of the plastic reservoir to limit the compression of plastic reservoir when the bolt is rotated. Thus, a seal rubber provided between the plastic reservoir and the housing is properly compressed to make effectively fluid-tight therebetween due to a proper fastening force exerted on the metallic sleeve.

Growing community of inventors

Kariya, Japan

Masashi Ban