Toyota Jidosha Kabushiki Kaisha

Yoshihide Ogawa

Yoshinori Ogaki

Yusaku Nishimura

Kazuhiro Minamitani

Satoshi Kawai

Toshio Douke

A pressure regulator is connected to a fuel pipe to which fuel is supplied by a feed pump. There is formed a fuel channel in the pressure regulator for returning fuel from within the fuel pipe to the fuel tank. In the pressure regulator, there are also formed a stopper and a valve body which collectively reduce the fuel flow area of the fuel channel as a result of an increase in the fuel pressure within the fuel pipe. This makes the fuel within the fuel pipe less likely to be released through the aforementioned fuel channel. For this reason, it is possible to correspondingly increase the fuel pressure within the fuel pipe in an efficient manner by increasing operating rate of the feed pump under conditions where the fuel pressure within the fuel pipe is high.

Pressure regulator

A canister arrangement structure in a fuel vapor recovery device includes a canister that has built therein an adsorbent for adsorbing fuel and temporarily collects fuel vapor generated in a fuel tank of an internal combustion engine, the canister is arranged between an exhaust pipe of the internal combustion engine and the fuel tank.

Canister arrangement structure, fuel vapor recovery device, and vehicle equipped with fuel vapor recovery device

An evaporation system leak diagnostic apparatus that purges fuel vapor from a fuel tank into an intake system of an internal combustion engine via a canister, includes: a first closed system leak diagnostic unit that executes a leak diagnostic on a first closed system based on a tank internal pressure detected by a tank internal pressure detecting device while the first closed system is formed with a first closed system forming device; and a second closed system leak diagnostic unit that introduces pressure in the first closed system into a second closed system by forming a second closed system with a second closed system forming device, and executes a leak diagnostic on the second closed system based on the tank internal pressure detected by the tank internal pressure detecting device, after the leak diagnostic by the first closed system leak diagnostic unit.

Evaporation system leak diagnostic apparatus

A fuel tank that stores a liquid fuel is equipped with a float member floating on the fuel stored in the fuel tank. In this fuel tank, the float member is so formed as to cover a liquid surface of the liquid fuel.

Growing community of inventors

Anjo, Japan

Yoshihide Ogawa