An oil gun for an automatic fluid pump conveniently supplies fluid stored inside a tank to the inside of a container. The oil gun includes a case and a handle part, which has a switch to control a battery-operated suction pumping part coupled to a suction hose to which a supply hose is coupled. A gun nozzle coupling part curvedly extends downward from the handle part. The case is divided into an upper case and a lower case that can be assembled and disassembled. A first seating groove is formed on one end of each of the upper case and the lower case to receive a connector of a flow path member. A second seating groove is formed on the other end of each of the upper case and the lower case to receive an upper portion of the gun nozzle.

An oil gun for an automatic fluid pump conveniently supplies fluid stored inside a tank to the inside of a container. The oil gun includes a case and a handle part, which has a switch to control a battery-operated suction pumping part coupled to a suction hose to which a supply hose is coupled. A gun nozzle coupling part curvedly extends downward from the handle part. The case is divided into an upper case and a lower case that can be assembled and disassembled. A first seating groove is formed on one end of each of the upper case and the lower case to receive a connector of a flow path member. A second seating groove is formed on the other end of each of the upper case and the lower case to receive an upper portion of the gun nozzle.

A gearbox filler assembly includes a cylindrical insert attached to an interior of a port disposed within a housing of the gearbox. The cylindrical insert has a first end disposed within the port, a second end extending outward from the port and is configured to receive a detachable filler cap, a retaining lip around at least a portion of a first interior circumference proximate to the first end, and a retaining slot around at least a second interior circumference between the retaining lip and the second end. A retaining ring is detachably coupled within the retaining slot. A cylindrical baffle is detachably retained between the retaining ring and the retaining lip.

An oil tank filling system for filling the oil tank of a gas turbine engine. The system includes an oil tank located within the core of the engine, an engine oil filling port located on a bifurcation below the core of the engine, and an oil tank filling pipe that leads from the engine oil filling port to a tank filling port on the oil tank. The engine oil filling port is detachably connectable to an off-engine oil pump that when connected to the engine oil filling port and supplied with oil pumps oil into the engine oil filling port and through the oil tank filling pipe to the tank filling port to fill the oil tank. A method of filling the oil tank of a gas turbine engine and a gas turbine engine that includes the oil tank filling system are also disclosed.

A method of transferring fluid in a motor system includes containing a first volume of fluid in a reservoir of a fluid container that is in fluid communication with a fluid receptacle of a motor and containing a second volume of fluid in the fluid receptacle. A first quantity of fluid is transferred from the fluid receptacle to the reservoir of the replaceable fluid container so as to mix the first quantity of fluid from the fluid receptacle with the volume of fluid in the reservoir of the replaceable fluid container A second quantity of fluid is transferred from the reservoir back to the fluid receptacle.

The present invention relates to a grease replacement method of replacing grease in a case (84) including a sealable gear chamber (31, 36) accommodating a gear (85) as a member to be lubricated, a grease injection port (61, 62) configured to inject grease into the gear chamber (31, 36), and a discharge port (32, 37) configured to discharge the grease in the gear chamber (31, 36), and a grease suction device to be used to perform this method. The grease replacement method includes a suction step (S2) of sucking the grease in the gear chamber (31, 36) from the grease injection port (61, 62) with the discharge port (32, 37) being open, and discharging the grease outside the case (84), and an injection step (S4) of injecting new grease into the grease injection port (61, 62) and supplying the new grease to the gear (85). This facilitates discharging of old grease.

A pneumatic liquid dispenser includes a container and a lid. When the lid is mounted on the container, the container supports passaging defining a gas supply inlet for receiving pressurized gas, a gas outlet for delivering pressurized gas to the container, and a gas flow path between the inlet and the outlet. A pressure valve is located between the gas supply inlet and the gas outlet. The pressure valve is configured to automatically permit gas flow along the gas flow path when pressure in the interior of the container is less than a threshold pressure and to automatically block gas flow along the gas flow path when pressure in the interior of the container is greater than the threshold pressure. When gas flows freely through the gas flow path, the gas pressurizes the container to dispense liquid in the container through a liquid passage.

A liquid dispenser includes a container and a lid. When the lid is mounted on the container, the container supports passaging including a gas supply inlet and a venturi. A control valve in fluid communication with the passaging is adjustable to a dispensing configuration and an evacuation configuration and a separate mode selector valve is adjustable to a dispensing configuration and an evacuation configuration. The dispenser dispenses liquid when both valves are in the dispensing configuration and evacuates liquid when both valves are in the evacuation configuration. The mode selector valve can block flow through a pressurization passage of the passaging in the evacuation configuration and through the venturi or other evacuation passage in the dispensing configuration.

A retainer is rotationally driven about a axis of a ball bearing, and convex areas having pockets provided therein along a ball pitch circle of the retainer and concave areas between adjacent pockets is detected by a sensor. Grease is discharged according to phases of the convex areas and concave areas in the rotationally driven retainer from a dispenser having grease discharge ports arranged to face an annular space.

A liquid dispenser includes a container and a lid. When the lid is mounted on the container, the container supports passaging including a gas supply inlet and a venturi. A control valve in fluid communication with the passaging is adjustable to a dispensing configuration and an evacuation configuration and a separate mode selector valve is adjustable to a dispensing configuration and an evacuation configuration. The dispenser dispenses liquid when both valves are in the dispensing configuration and evacuates liquid when both valves are in the evacuation configuration. The mode selector valve can block flow through a pressurization passage of the passaging in the evacuation configuration and through the venturi or other evacuation passage in the dispensing configuration.