The present disclosure relates to a solenoid valve. The solenoid valve includes an armature provided inside the sleeve, a plunger configured to ascend and descend by the operation of the armature, an elastic member configured to press the plunger toward the armature, a magnet core having a through hole in which the plunger and the elastic member are provided and forming an inner space in a longitudinal direction, a valve seat provided in the inner space and on which an orifice penetrating in an axial direction is formed to be opened and closed by the plunger, and a plurality of flow resistance members each including a ring body interposed between the valve seat and the magnet core to generate a flow resistance of a braking fluid, and a slot formed at one side of the ring body to penetrate through the ring body so that the braking fluid passes therethrough.

A cleaning system of a vehicle oil circuit is provided, including a filter unit, an oil storage unit and a flushing unit. The filter unit includes a filter chamber, a first oil inlet tube and an oil outlet tube. The first oil inlet tube is communicated with a first opening of the vehicle oil circuit. The oil outlet tube is communicated with a second opening of the vehicle oil circuit. The oil storage unit includes a waste oil chamber and a second oil inlet tube communicated with a third opening of the vehicle oil circuit. The flushing unit includes a flushing chamber and a flushing tube. The flushing chamber receives a washing oil. The flushing tube is communicated respectively with the flushing chamber and a fourth opening of the vehicle oil circuit. The flushing tube guides the washing oil to enter the vehicle oil circuit.

A cleaning system for a vehicle oil circuit is provided, including a heat exchange unit. The heat exchange unit includes an oil inlet channel, a first container, a second container and an oil outlet channel. The first container is located within the second container. The first container defines a first space communicated with the oil inlet channel and the oil outlet channel, and the first container and the second container define a second space therebetween and non-communicated with the first space. The oil inlet channel guides an oil from the vehicle oil circuit to the first space, and the oil outlet channel discharges the oil from the first space. The first space receives the oil, and the second space receives a detergent. When the oil is in the first space, a heat of the oil is transferred to the detergent through the first container.

A cleaning system for a vehicle oil circuit is provided, including a heat exchange unit. The heat exchange unit includes an oil inlet channel, a first container, a second container and an oil outlet channel. The first container is located within the second container. The first container defines a first space communicated with the oil inlet channel and the oil outlet channel, and the first container and the second container define a second space therebetween and non-communicated with the first space. The oil inlet channel guides an oil from the vehicle oil circuit to the first space, and the oil outlet channel discharges the oil from the first space. The first space receives the oil, and the second space receives a detergent. When the oil is in the first space, a heat of the oil is transferred to the detergent through the first container.

The invention relates to a filter unit (1, 19), having: at least one warp-knitted spacer (3) which comprises a first and a second cover layer (4; 5) having in each case a multiplicity of openings (6) which are delimited by peripheral regions (7), wherein threads (8) extend from the peripheral regions (7) of the first cover layer (4) to peripheral regions (7) of the second cover layer (5), and wherein the at least one warp-knitted spacer is rolled, twisted, and/or at least in one portion is compressed.

The invention relates to a filter unit (1, 19), having: at least one warp-knitted spacer (3) which comprises a first and a second cover layer (4; 5) having in each case a multiplicity of openings (6) which are delimited by peripheral regions (7), wherein threads (8) extend from the peripheral regions (7) of the first cover layer (4) to peripheral regions (7) of the second cover layer (5), and wherein the at least one warp-knitted spacer is rolled, twisted, and/or at least in one portion is compressed.

A filter is compressed between facing surfaces of a first configuration component and a second configuration component, and a molten resin is poured in such a compressed state. Injection molding of the first configuration component and the second configuration component, joining of the configuration components, and sealing of the circumference of the filter are performed by a pair of metal molds.

The invention relates to a filter for filtering a liquid or a gas, with a pocket-shaped filter element which has a sleeve-shaped circumferential region, a closed head region and an open foot region, and with a frame element which has an annular base, in which the foot region of the filter element is accommodated, and at least one supporting strut which extends away from the base along the circumferential region of the filter element. An advantageous design of the filter is achieved by forming the head region of the filter element with a saddle shape, wherein two lateral tips are provided between which a channel-shaped recess is formed.

An apparatus for collecting debris includes a frame having a connector configured to attach to a pole. The frame includes a plurality of frame rods each designed to be removably connected to at least one other frame rod via a tongue-and-groove feature such that the plurality of frame rods define an opening when connected together. The apparatus further includes a netting designed to be removably connected to the frame and to substantially fill the opening defined by the plurality of frame rods.

An apparatus for collecting debris includes a frame having a connector configured to attach to a pole. The frame includes a plurality of frame rods each designed to be removably connected to at least one other frame rod via a tongue-and-groove feature such that the plurality of frame rods define an opening when connected together. The apparatus further includes a netting designed to be removably connected to the frame and to substantially fill the opening defined by the plurality of frame rods.