F16K31/36

Pneumatic servovalve assembly

The present disclosure relates to a servovalve assembly comprising a pair of opposed nozzles spaced apart by a first gap. A control element positioned in the first gap (G) between the pair of opposed nozzles. Each nozzle has an outlet opening. The control element has a central control portion and two resiliently deformable end portions at opposite ends of the central control portion. The central control portion is perpendicular to a central axis (C) of each nozzle outlet opening. The control element is configured such that the two resiliently deformable end portions elastically deform when the control element is placed under tension by a force applied parallel to the central control portion, so as to move the control element in a direction parallel to the central axis (C) of each nozzle outlet opening.

Pneumatic servovalve assembly

The present disclosure relates to a servovalve assembly comprising a pair of opposed nozzles spaced apart by a first gap. A control element positioned in the first gap (G) between the pair of opposed nozzles. Each nozzle has an outlet opening. The control element has a central control portion and two resiliently deformable end portions at opposite ends of the central control portion. The central control portion is perpendicular to a central axis (C) of each nozzle outlet opening. The control element is configured such that the two resiliently deformable end portions elastically deform when the control element is placed under tension by a force applied parallel to the central control portion, so as to move the control element in a direction parallel to the central axis (C) of each nozzle outlet opening.

Switch valve for controlling a hydraulic fluid flow for a connecting rod of variable compression internal combustion engine and connecting rod
10598088 · 2020-03-24 · ·

A switch valve for controlling a hydraulic fluid flow of a connecting rod for an internal combustion engine with variable compression with an eccentrical element adjustment arrangement for adjusting an effective connecting rod length, the eccentrical element adjustment arrangement including a first cylinder including a first hydraulic chamber; a second cylinder including a second hydraulic chamber, wherein the first cylinder includes a first inlet for feeding hydraulic fluid into the first cylinder from a supply and the second cylinder includes a second inlet for feeding hydraulic fluid into the second cylinder from the supply, wherein the first cylinder includes a first drain for draining the hydraulic fluid from the first cylinder and the second cylinder includes a second drain for draining the hydraulic fluid from the second cylinder, wherein the switch valve includes a step piston which is displaceable into a first switching position or a second switching position.

COOLING SYSTEM VALVE
20200072116 · 2020-03-05 ·

The present invention relates to a cooling system valve (24) for an internal combustion engine cooling system (12), the internal combustion engine cooling system (12) comprising a radiator (14) and a coolant passage (16) adapted to cool at least a portion of an internal combustion engine (18), the cooling system valve (24) being adapted to be located between the radiator (14) and the coolant passage (16), as seen in an intended direction of flow from the radiator (14) to the coolant passage (16). The cooling system valve (24) is adapted to automatically assume each one of at least the following conditions: an open condition, allowing coolant transport from the radiator (14) towards the coolant passage (16) via the cooling system valve (24), and a closed condition, preventing coolant transport in a direction from the coolant passage (16) towards the radiator (14) via the cooling system valve (24).

COOLING SYSTEM VALVE
20200072116 · 2020-03-05 ·

The present invention relates to a cooling system valve (24) for an internal combustion engine cooling system (12), the internal combustion engine cooling system (12) comprising a radiator (14) and a coolant passage (16) adapted to cool at least a portion of an internal combustion engine (18), the cooling system valve (24) being adapted to be located between the radiator (14) and the coolant passage (16), as seen in an intended direction of flow from the radiator (14) to the coolant passage (16). The cooling system valve (24) is adapted to automatically assume each one of at least the following conditions: an open condition, allowing coolant transport from the radiator (14) towards the coolant passage (16) via the cooling system valve (24), and a closed condition, preventing coolant transport in a direction from the coolant passage (16) towards the radiator (14) via the cooling system valve (24).

CONTROL APPARATUS FOR LINEAR SOLENOID

A control apparatus for controlling a linear solenoid by controlling a driving current supplied to the linear solenoid through a feedback control. The feedback control is executed by a feedback control system having parameters that are determined in accordance with an ILQ design method. In a frequency characteristic of a gain of a transfer function representing a ratio of an output to a disturbance in the feedback control system, the gain is lower than 0[dB] throughout all frequency ranges.

CONTROL APPARATUS FOR LINEAR SOLENOID

A control apparatus for controlling a linear solenoid by controlling a driving current supplied to the linear solenoid through a feedback control. The feedback control is executed by a feedback control system having parameters that are determined in accordance with an ILQ design method. In a frequency characteristic of a gain of a transfer function representing a ratio of an output to a disturbance in the feedback control system, the gain is lower than 0[dB] throughout all frequency ranges.

Reversing Valve
20240125403 · 2024-04-18 ·

Provided is a reversing valve. The reversing valve includes: a main valve; a supporting frame having a first connecting end and a second connecting end, wherein the first connecting end is connected with the main valve, and an end wall of the first connecting end is attached to a side wall of the main valve; and a supporting structure located between a side wall of the first connecting end and the side wall of the main valve. Strength of connection between the main valve and the supporting frame of the reversing valve is high, thereby achieving safety and reliability.

Reversing Valve
20240125403 · 2024-04-18 ·

Provided is a reversing valve. The reversing valve includes: a main valve; a supporting frame having a first connecting end and a second connecting end, wherein the first connecting end is connected with the main valve, and an end wall of the first connecting end is attached to a side wall of the main valve; and a supporting structure located between a side wall of the first connecting end and the side wall of the main valve. Strength of connection between the main valve and the supporting frame of the reversing valve is high, thereby achieving safety and reliability.

Rotary hydraulic distribution manifold for water play features

A rotary hydraulic distribution manifold for water play features comprising in one example: a fluid inlet; a housing having a fluid conduit to the fluid inlet; a distribution liner positioned within the housing; the distribution liner having a surface defining a distribution liner port; the housing having surfaces defining a plurality of housing outlets; and a drive unit configured to rotate the distribution liner within the housing to sequentially align the distribution liner port with the housing outlets so as to intermittently provide a fluid conduit between the fluid inlet and one or more housing outlets.