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US 9,909,674 B2Granted
Pulse-width-regulating valve
AssigneeViking Heat Engines AS
InventorHarald Nes Risla
Life of this patent
Estimating the term…
Abstract
A pulse-width-regulating valve is for the regulation of a fluid flow or a fluid pressure. The pulse-width-regulating valve comprises a cut-off valve connected in series with an inflow valve, at least one of the cut-off valve and the inflow valve being provided with an axially displaceable or rotatable valve element which has an opening position or a closing position at a distance from a starting position of the valve element. A method of operating a pulse-width-regulating valve comprises: regulating a valve gear device by a valve synchronizer, in accordance with at least two displacement curves; and by one or more valve actuators, displacing or rotating corresponding valve elements arranged in the pulse-width-regulating valve.
Claims20
A pulse-width-regulating valve configured to regulate at least one of a fluid flow and a fluid pressure, the pulse-width-regulating valve comprising:
- a valve housing comprising an inlet port, an outlet port, and an intermediate-passage port disposed between the inlet port and the outlet port;
- a cut-off valve comprising a first valve element having a first through-going fluid passage, the first valve element being movable into and between an open position in which fluid flow from the inflow port to the intermediate-passage port is allowed via the first through-going fluid passage and a closed position in which fluid flow from the inflow port to the intermediate-passage port is prevented;
- an inflow valve connected in series with the cut-off valve, the inflow valve comprising a second valve element having a second through-going fluid passage, the second valve element being movable into and between an open position in which a fluid flow from the intermediate-passage port to the outlet port is allowed via the second through-going fluid passage and a closed position in which fluid flow from the intermediate-passage port to the outlet port is prevented;
- and
- wherein the cut-off valve and the inflow valve each comprise a gliding port transition that is configured such that the first valve element and second valve element can be accelerated prior to reaching their respective open and closed positions, thereby enabling opening and closing of the cut-off valve and the inflow valve at a highest possible displacement speed of the respective first and second valve elements,
- the pulse-width-regulating valve further comprising a valve gear device that is configured to move at least one of the cut-off valve and the inflow valve into and between the respective open and closed positions,
- wherein the valve gear device is configured to move the cut-off valve at a first opening speed towards the open position, wherein the valve gear device is configured to move the cut-off valve at a first closing speed towards the closed position, wherein the first opening speed is greater than the first closing speed, and
- wherein the valve gear device is configured to move the inflow valve at a second opening speed towards the open position, wherein the valve gear device is configured to move the inflow valve at a second closing speed towards the closed position, wherein the second closing speed is greater than a second opening speed.
5 more elements
A pulse-width-regulating valve configured to regulate at least one of a fluid flow and a fluid pressure, the pulse-width-regulating valve comprising:
- a valve housing comprising an inlet port, an outlet port, and an intermediate-passage port disposed between the inlet port and the outlet port;
- a cut-off valve comprising a first valve element having a first through-going fluid passage, the first valve element being movable into and between an open position in which fluid flow from the inflow port to the intermediate-passage port is allowed via the first through-going fluid passage and a closed position in which fluid flow from the inflow port to the intermediate-passage port is prevented;
- an inflow valve connected in series with the cut-off valve, the inflow valve comprising a second valve element having a second through-going fluid passage, the second valve element being movable into and between an open position in which a fluid flow from the intermediate-passage port to the outlet port is allowed via the second through-going fluid passage and a closed position in which fluid flow from the intermediate-passage port to the outlet port is prevented;
- and
- wherein the cut-off valve and the inflow valve each comprise a gliding port transition that is configured such that the first valve element and second valve element can be accelerated prior to reaching their respective open and closed positions, thereby enabling opening and closing of the cut-off valve and the inflow valve at a highest possible displacement speed of the respective first and second valve elements,
- the pulse-width-regulating valve further comprising a driving flow channel formed through the first valve element, wherein the driving flow channel is in fluid communication with the second valve element when the first valve element is the closed position.
3 more elements
A pulse-width-regulating valve configured to regulate at least one of a fluid flow and a fluid pressure, the pulse-width-regulating valve comprising:
- a valve housing comprising an inlet port, an outlet port, and an intermediate-passage port disposed between the inlet port and the outlet port;
- a cut-off valve comprising a first valve element having a first through-going fluid passage, the first valve element being movable into and between an open position in which fluid flow from the inflow port to the intermediate-passage port is allowed via the first through-going fluid passage and a closed position in which fluid flow from the inflow port to the intermediate-passage port is prevented;
- an inflow valve connected in series with the cut-off valve, the inflow valve comprising a second valve element having a second through-going fluid passage, the second valve element being movable into and between an open position in which a fluid flow from the intermediate-passage port to the outlet port is allowed via the second through-going fluid passage and a closed position in which fluid flow from the intermediate-passage port to the outlet port is prevented;
- and
- wherein the cut-off valve and the inflow valve each comprise a gliding port transition that is configured such that the first valve element and second valve element can be accelerated prior to reaching their respective open and closed positions, thereby enabling opening and closing of the cut-off valve and the inflow valve at a highest possible displacement speed of the respective first and second valve elements,
- wherein the first and second valve elements comprise first and second end faces, respectively, that are perpendicular to respective center axes of the first and second valve elements, and further comprise valve axles that project through respective valve seals in the valve housing.
3 more elements
The pulse-width-regulating valve according to 3, wherein the first and second end faces define axial-pressure faces having equal dimensions.
A pulse-width-regulating valve configured to regulate at least one of a fluid flow and a fluid pressure, the pulse-width-regulating valve comprising:
- a valve housing comprising an inlet port, an outlet port, and an intermediate-passage port disposed between the inlet port and the outlet port;
- a cut-off valve comprising a first valve element having a first through-going fluid passage, the first valve element being movable into and between an open position in which fluid flow from the inflow port to the intermediate-passage port is allowed via the first through-going fluid passage and a closed position in which fluid flow from the inflow port to the intermediate-passage port is prevented;
- an inflow valve connected in series with the cut-off valve, the inflow valve comprising a second valve element having a second through-going fluid passage, the second valve element being movable into and between an open position in which a fluid flow from the intermediate-passage port to the outlet port is allowed via the second through-going fluid passage and a closed position in which fluid flow from the intermediate-passage port to the outlet port is prevented;
- and
- wherein the cut-off valve and the inflow valve each comprise a gliding port transition that is configured such that the first valve element and second valve element can be accelerated prior to reaching their respective open and closed positions, thereby enabling opening and closing of the cut-off valve and the inflow valve at a highest possible displacement speed of the respective first and second valve elements,
- wherein the first and second valve elements comprise first and second end faces, respectively, that are perpendicular to respective center axes of the first and second valve elements, and further comprise valve axles that project through respective valve seals in the valve housing, and
- wherein the first and second end faces define axial-pressure faces having equal dimensions.
4 more elements
A pulse-width-regulating valve configured to regulate at least one of a fluid flow and a fluid pressure, the pulse-width-regulating valve comprising:
- a valve housing comprising an inlet port, an outlet port, and an intermediate-passage port disposed between the inlet port and the outlet port;
- a cut-off valve comprising a first valve element having a first through-going fluid passage, the first valve element being movable into and between an open position in which fluid flow from the inflow port to the intermediate-passage port is allowed via the first through-going fluid passage and a closed position in which fluid flow from the inflow port to the intermediate-passage port is prevented;
- an inflow valve connected in series with the cut-off valve, the inflow valve comprising a second valve element having a second through-going fluid passage, the second valve element being movable into and between an open position in which a fluid flow from the intermediate-passage port to the outlet port is allowed via the second through-going fluid passage and a closed position in which fluid flow from the intermediate-passage port to the outlet port is prevented;
- and
- wherein the cut-off valve and the inflow valve each comprise a gliding port transition that is configured such that the first valve element and second valve element can be accelerated prior to reaching their respective open and closed positions, thereby enabling opening and closing of the cut-off valve and the inflow valve at a highest possible displacement speed of the respective first and second valve elements;
- wherein the first and second valve elements comprise first and second end faces, respectively, that are perpendicular to respective center axes of the first and second valve elements, and further comprise valve axles that project through respective valve seals in the valve housing, and
- the pulse-width-regulating valve further comprising a preloading element that axially preloads the first and second valve elements so as to provide a compressive force against the first and second end faces.
4 more elements
Dependencies are inferred from the claim text.