A hydrogen generator for use with an inner combustion engine or other apparatus, even of a movable type, such as a home gas kitchen, said hydrogen generator comprises a system for separating hydrogen from ammonia, said system comprising a NH.sub.3 tank, an ammonia sucking pump, and a cracking oven containing a catalyst, an electric resistance and a H.sub.2/N.sub.2 separating centrifuge and including a suction device comprising a filter followed by a bottle for providing a feeding volume necessary for the produced hydrogen to compensate for user system requirement variations.

During a journey using a motor vehicle, a virtual environment is displayed by use of a display device and additionally a virtual representation of a route layout located in front of the motor vehicle is also displayed by use of the display device within the virtual environment. The display device may be used in the motor vehicle.

During a journey using a motor vehicle, a virtual environment is displayed by use of a display device and additionally a virtual representation of a route layout located in front of the motor vehicle is also displayed by use of the display device within the virtual environment. The display device may be used in the motor vehicle.

A fuel supply device of an engine includes: a fuel tank; a fuel filter which is disposed in front of the fuel tank in a front-rear direction of a vehicle; a fuel pump which is disposed in front of the fuel filter in the front-rear direction of the vehicle; a first fuel supply pipe which connects the fuel tank and the fuel filter to each other; and a second fuel supply pipe which connects the fuel filter and the fuel pump to each other. A first connecting portion to which the first fuel supply pipe is connected is formed on a front portion of the fuel filter, and a second connecting portion to which the second fuel supply pipe is connected is formed on a rear portion of the fuel filter.

A fuel pump system of a hybrid vehicle is provided. The fuel pump system prevents a fuel pump from continuing to operate when fuel is exhausted, whereby the fuel pump may be damaged. The pressure of fuel is measured in response to exhaustion of fuel, and when the pressure of fuel is low, fuel is circulated within the fuel pump instead of being supplied to the engine side, thereby preventing the fuel pump from being stuck due to frictional heat.

A fuel pump system of a hybrid vehicle is provided. The fuel pump system prevents a fuel pump from continuing to operate when fuel is exhausted, whereby the fuel pump may be damaged. The pressure of fuel is measured in response to exhaustion of fuel, and when the pressure of fuel is low, fuel is circulated within the fuel pump instead of being supplied to the engine side, thereby preventing the fuel pump from being stuck due to frictional heat.

Methods and systems are provided for a fuel filler pipe. In one example, a system may include a bracket comprising a bumper physically coupled to a vehicle cross-member. The bumper coming into contact with a fuel filler pipe proximal to the cross-member during some vehicle conditions to block the fuel filler pipe from contacting the cross-member.

An advancing/retreating movement mechanism 1 of an advancing/retreating member includes: a lifter 3; a coil spring 5; a lock pin 7 that limits the movement of the lifter 3; a case 2 that accommodates the lifter 3 and the coil spring 5; an advance/retreat position control mechanism 9 that controls an advance position, a retreat position, and a reciprocating movement of the lifter 3; and a receiving seat 11 that receives the coil spring 5 so that the lifter 3 is biased. The receiving seat 11 is arranged in a rearward position side of the lifter 3. An engaging part 27a engaging the lock pin 7 is arranged to the lifter 3. When the lifter 3 moves to the retreat position, the engaging part 27a moves to a rearward side beyond the receiving seat 11 and moves to a position where the engaging part 27a can be engaged with the lock pin 7. Therefore, the size of the advancing/retreating member in a protruding/withdrawing direction can be made small.

An advancing/retreating movement mechanism 1 of an advancing/retreating member includes: a lifter 3; a coil spring 5; a lock pin 7 that limits the movement of the lifter 3; a case 2 that accommodates the lifter 3 and the coil spring 5; an advance/retreat position control mechanism 9 that controls an advance position, a retreat position, and a reciprocating movement of the lifter 3; and a receiving seat 11 that receives the coil spring 5 so that the lifter 3 is biased. The receiving seat 11 is arranged in a rearward position side of the lifter 3. An engaging part 27a engaging the lock pin 7 is arranged to the lifter 3. When the lifter 3 moves to the retreat position, the engaging part 27a moves to a rearward side beyond the receiving seat 11 and moves to a position where the engaging part 27a can be engaged with the lock pin 7. Therefore, the size of the advancing/retreating member in a protruding/withdrawing direction can be made small.

The present invention relates to a tank cap including a lever member that is constrained from moving to the standing position contrary to the intention of the operator. The tank cap comprises a slide member disposed in the cap body so as to be adjacent to the lever member, and provided with a cam contact portion that is to come into contact with a cam portion of the lever member, and a coil spring disposed between the slide member and the bottom of the cap body. The resilience of the coil spring causes the cam contact portion to press the cam portion and retains the retracted position.