公开(公告)号：US06253743B1

公开(公告)日：2001-07-03

申请号：US09368474

申请日：1999-08-04

申请人： Yoshihiko Hyodo ,  Toshimi Murai ,  Hidekazu Sasaki ,  Koichi Takeuchi

发明人： Yoshihiko Hyodo ,  Toshimi Murai ,  Hidekazu Sasaki ,  Koichi Takeuchi

IPC分类号： F02M3302

CPC分类号： F02M31/18 ,  F02M25/08 ,  Y02T10/126

摘要： A fuel vapor control apparatus determines whether the concentration of fuel vapor in a space above the surface of liquid fuel in the fuel tank is less than a predetermined concentration. When the concentration of fuel vapor is less than the predetermined concentration, the concentration of fuel vapor in the fuel tank is increased and, when the concentration of fuel vapor exceeds the predetermined concentration, the increase of the concentration of fuel vapor is stopped. Therefore, an amount of fuel flowing out of the fuel tank can be reduced while using a reduced amount of energy.

摘要翻译： 燃料蒸汽控制装置确定燃料箱中的液体燃料表面上方的空间中的燃料蒸气的浓度是否小于预定浓度。 当燃料蒸汽的浓度小于预定浓度时，燃料箱中燃料蒸气的浓度增加，并且当燃料蒸汽的浓度超过预定浓度时，停止燃料蒸气浓度的增加。 因此，能够减少从燃料箱流出的燃料量，同时减少能量。

公开(公告)号：US06240908B1

公开(公告)日：2001-06-05

申请号：US09333426

申请日：1999-06-15

申请人： Yoshihiko Hyodo ,  Hidekazu Sasaki ,  Takuya Matsuoka ,  Naoya Takagi

发明人： Yoshihiko Hyodo ,  Hidekazu Sasaki ,  Takuya Matsuoka ,  Naoya Takagi

IPC分类号： F02M3704

CPC分类号： F02M25/0809

摘要： A diagnostic apparatus for a fuel storage device has a gas introducing passage for introducing gas from a fuel storage device into an intake passage of an internal combustion engine and a shutoff valve that shuts the gas introducing passage. The diagnostic apparatus detects an amount of fuel component introduced into the intake passage via the gas introducing passage when the shutoff valve is in at least one of an open state and a closed state on the basis of the detected amount of fuel component and, upon detecting the presence of the fuel component in the introduced gas, the apparatus diagnoses that the fuel storage device has a fault.

摘要翻译： 燃料储存装置的诊断装置具有用于将燃料从燃料存储装置引入内燃机的进气通路的气体导入通路和关闭气体导入通路的切断阀。 诊断装置根据检测到的燃料成分量，检测在截止阀处于打开状态和关闭状态中的至少一个时经由气体导入通路导入的进气通路的燃料成分的量， 燃料成分在引入气体中的存在，该装置诊断燃油存储装置有故障。