Abstract: A rotary valve that controls a flow rate at which working oil is supplied to and discharged from a hydraulic cylinder that causes a wing to rotate about a rotary shaft includes a rotor that rotates as the wing rotates about the rotary shaft, and a first control flow passage and a second control flow passage formed in the rotor to control the flow rate at which the working fluid is supplied to and discharged from the hydraulic cylinder, wherein the first control flow passage and the second control flow passage respectively vary a resistance exerted on a flow of the working fluid passing therethrough as the rotor rotates.

Abstract: A gas burner assembly for a cooking hob, in particular for a domestic cooking hob, includes at least two burner bases arranged side-by-side-and a burner crown element arranged or arrangeable above the burner bases. At least one burner cap is arranged or arrangeable above the burner crown element. The burner bases are adjustable separately. The burner crown element includes a bottom plate subdivided into at least two portions arranged side-by-side. Each portion of the bottom plate is arranged or arrangeable above one of the burner bases. The burner crown element includes at least two side walls. Each side wall encloses one of the portions of the bottom plate. The burner crown element includes flame ports formed in the side walls. The flame ports are arranged in those sections of the side walls arranged opposite to the adjacent portion or portions of the bottom plate.

Abstract: A burner assembly for liquid fuels where a body member is rotatable about a central stem member and movable axially thereof to open a fuel valve and also to move a flow control member extending into the nozzle.