A robotic work tool (100) comprising one or more satellite navigation sensors (175), a visual sensor (185) and a controller (110), wherein the controller (110) is configured to utilize the one or more satellite navigation sensors (175) to determine a refer...

A method for use in a robotic work tool system comprising a robotic work tool 100, the robotic work tool comprising a controller 110, a deduced reckoning sensor 180 comprising a direction sensor 181, and wherein the method comprises: receiving sensor input...

A robotic work tool (1) is disclosed configured to operate in an area in an autonomous manner. The robotic work tool (1) comprises one or more rechargeable batteries (5) and a contact plate (3) configured to transfer electricity from a contact (4) of a doc...

A method for use in a robotic work tool system (200) comprising a charging station (210), a wire (220) leading to/from the charging station (210) and a robotic work tool (100) arranged to operate in an operational area (205), the robotic work tool (100) co...

A robotic work tool system (200), comprising a charging station (210), a boundary wire (250), a signal generator (240) for generating and transmitting a signal through said boundary wire (250) for demarcating a work area (205) and a robotic work tool (100)...

A fuel supply unit (1) is provided e.g. a carburettor or a low pressure injection system of an internal combustion engine. The fuel supply unit (1) includes a main air passage (3), which has a throttle valve (8, 9) mounted therein and the throttle valve (8...