Abstract: A fuel supply system includes a housing including a housing body in which a fuel storage tank serving as a reservoir tank as well and a lid covering an opening of the housing body in an air-tight manner. The housing includes a fuel pump, a regulator configured to regulate a pressure of the fuel to return excess fuel to the fuel storage tank, a regulator holding member supporting the regulator, and a fuel storage volume adjusting unit that maintains the liquid surface level of the stored fuel at a fixed level. The fuel supply system supplies fuel at a predetermined pressure from a fuel discharging pipe of the lid to the engine. The regulator holding member is formed in such a manner in a planar view as to fill most of interspace in the opening of the housing body to close the upper portion of the fuel storage tank.

Abstract: A brushless motor integrated pump may include a brushless motor having a rotary shaft, a rotor axially mounted on the rotary shaft, a stator disposed around the rotor, a motor case forming a part of a case body and in which the rotor and the stator are accommodated, a motor cover covering the motor case with the rotary shaft penetrating through and protruding from an opening of the motor case, and low and high pressure-side gear pumps sharing the rotary shaft as a driving source and accommodated in a multistage manner inside a pump cover disposed on a surface of the motor cover to form the case body with the motor case.

Abstract: In a fuel supply apparatus, an injector and a throttle valve are provided in a throttle body, and the fuel supply apparatus is disposed between an intake manifold and an air cleaner of a two-cylinder general-purpose engine and supplies fuel adjusted to a predetermined air-fuel ratio to both cylinders of the two-cylinder general-purpose engine by one injector. The throttle body includes a fuel supply unit having the injector and an air amount control unit having the throttle valve. The fuel supply unit and the air amount control unit are formed of separate components that can be separated or joined.

Abstract: To provide a fuel supply system in which fuel stored in a fuel storage tank formed in a housing main body can be supplied by a high-pressure pump provided in the housing main body in spite of a rapid acceleration or a rapid deceleration of an engine, two types of connectors, which is a first connector having a low-pressure pump having a connection port for a fuel supply pipe from a fuel tank and a second connector having no pump, can be selectively attached via a common connector mounting part formed on a wall surface of a housing main body, and by using a housing having therein the commonly used high-pressure pump, a fuel supply system using an external pump and a fuel supply system using no external pump can be respectively manufactured in accordance with the purpose of use.

Abstract: A fuel supply system includes a housing including a housing body in which a fuel storage tank serving as a reservoir tank as well and a lid covering an opening of the housing body in an air-tight manner. The housing includes a fuel pump, a regulator configured to regulate a pressure of the fuel to return excess fuel to the fuel storage tank, a regulator holding member supporting the regulator, and a fuel storage volume adjusting unit that maintains the liquid surface level of the stored fuel at a fixed level. The fuel supply system supplies fuel at a predetermined pressure from a fuel discharging pipe of the lid to the engine. The regulator holding member is formed in such a manner in a planar view as to fill most of interspace in the opening of the housing body to close the upper portion of the fuel storage tank.

Abstract: A fuel supply device may include an intake manifold having both ends thereof respectively connected to intake openings of cylinder heads of each of the cylinders in a V-type two-cylinder general-purpose engine, a throttle body connected to a connection portion of the intake manifold, a fuel injection valve disposed in the throttle body and having nozzles for uniformly injecting fuel to inside of the intake port or to an inner wall surface of the intake port of each of the cylinders through the connection portion of the intake manifold, and a throttle valve disposed to the throttle body upstream of the fuel injection valve.

Abstract: A seal is fit between a cylindrical connector support which is protruded on an upper end face of a cylindrical barrel part of an electrically-powered high pressure pump embedded in a housing and from which a power connector is exposed and an inner peripheral surface of a hollow part formed in a top face of a lid body such that the seal is flush with a top face of the hollow part. A flange having an outer shape which is the same as an inner shape of the hollow part is protrudingly provided at a predetermined height position on a circumference of the connector support such that a lower surface of the flange is disposed flush with a top face of the hollow part.

Abstract: To provide a fuel supply system in which fuel stored in a fuel storage tank formed in a housing main body can be supplied by a high-pressure pump provided in the housing main body in spite of a rapid acceleration or a rapid deceleration of an engine, two types of connectors, which is a first connector having a low-pressure pump having a connection port for a fuel supply pipe from a fuel tank and a second connector having no pump, can be selectively attached via a common connector mounting part formed on a wall surface of a housing main body, and by using a housing having therein the commonly used high-pressure pump, a fuel supply system using an external pump and a fuel supply system using no external pump can be respectively manufactured in accordance with the purpose of use.