US 12,595,855 B2Granted

Poppet assembly and a cam-actuated control valve having a poppet assembly

AssigneeHUSCO Automotive Holdings LLC

InventorsAustin Schmitt, Michael Kujak, Gene Shimelfarb, Alexander Schlarmann, Brian Heidemann

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Abstract

The present disclosure provides a control valve including a camshaft and one or more poppet assemblies. In general, the one or more poppet assemblies can include a poppet carriage that is moveable by the camshaft between a first end position and a second end position, a poppet coupled to the poppet carriage, and a spring configured bias the poppet carriage radially away from the camshaft, toward the first end position, in a first radial direction relative to a camshaft axis. According to some aspects, the camshaft can include a cam lobe that engages the poppet carriage to move the poppet carriage from the first end position toward the second end position in a second radial direction that is opposite the first radial direction.

Claims19

Dependent claims

A control valve, comprising:

a valve body having a first side and a second side opposite the first side;
a first valve chamber arranged within the valve body;
a second valve chamber arranged within the valve body, wherein the first and second valve chambers are separated by a sidewall of the valve body that extends between the first and second sides of the valve body, and wherein the sidewall of the valve body defines an interior compartment, the interior compartment being configured to thermally isolate the first valve chamber from the second valve chamber;
one or more chamber ports to provide fluid communication to or from the first valve chamber and the second valve chamber,
a camshaft extending through the valve body into the first valve chamber and the second valve chamber, and defining a camshaft axis, the camshaft including a cam lobe;
an actuator coupled to the camshaft and configured to selectively rotate the camshaft about the camshaft axis;
and
a poppet assembly received within each of the first valve chamber and the second valve chamber, the poppet assembly including:
a poppet carriage operatively coupled to the camshaft and in engagement with the cam lobe such that the poppet carriage is movable by the camshaft between a first end position and a second end position along a poppet axis;
a poppet coupled to the poppet carriage;
and
a spring configured to bias the poppet carriage radially away from the camshaft, toward the first end position, in a first radial direction relative to the camshaft axis;
wherein when the camshaft is rotated, the cam lobe engages the poppet carriage to move the poppet carriage from the first end position toward the second end position in a second radial direction that is opposite the first radial direction.

10 more elements

A control valve, comprising:

a valve body including a valve chamber, a first chamber port, and a chamber second port, the first and second chamber ports being configured to provide fluid communication to or from the valve chamber;
a camshaft extending through the valve body into the valve chamber and defining a camshaft axis, the camshaft including a cam;
an actuator coupled to the camshaft and configured to selectively rotate the camshaft about the camshaft axis;
and
a poppet cartridge received within the valve chamber and having a poppet axis, the poppet cartridge including:
a first poppet carriage having a first carriage opening extending through the first poppet carriage between a first outer end and a first inner end of the first poppet carriage, the first carriage opening defining a first engagement surface to be engaged by the cam such that the first poppet carriage is movable by the camshaft along the poppet axis between a first poppet closed position and a first poppet open position;
a first poppet coupled to the first outer end of the first poppet carriage;
a second poppet carriage having a second carriage opening extending through the second poppet carriage between a second outer end and a second inner end of the second poppet carriage, the second carriage opening defining a second engagement surface to be engaged by the cam such that the second poppet carriage is movable by the camshaft along the poppet axis between a second poppet closed position and a second poppet open position;
a second poppet coupled to the second outer end of the second poppet carriage;
and
a spring configured to bias the first and second poppet carriages radially away from the camshaft axis;
wherein the first engagement surface of the first poppet carriage is radially opposite the first poppet relative to the camshaft axis, and the second engagement surface of the second poppet carriage is radially opposite the second poppet relative to the camshaft axis.

9 more elements

A control valve, comprising:

a valve body having a first side and a second side opposite the first side;
a valve chamber arranged within the valve body and having a first chamber port disposed along the first side of the valve body and a second chamber port disposed along the second side of the valve body;
a camshaft arranged within a camshaft opening of the valve body, the camshaft opening extending through a first end of the valve body that is adjacent to the first and second sides of the valve body and a second end of the valve body, opposite the first end, along a camshaft axis, the camshaft having a first cam lobe and a second cam lobe;
an actuator coupled to the camshaft and configured to selectively rotate the camshaft in at least one rotational direction about the camshaft axis;
a first valve chamber manifold coupled to the first side of the valve body and defining a first manifold passageway in fluid communication with the first chamber port;
a second valve chamber manifold coupled to the second side of the valve body and defining a second manifold passageway in fluid communication with the second chamber port;
a cartridge slot extending within the valve chamber between the first side of the valve body and the second side of the valve body;
and
a poppet cartridge received within the cartridge slot of the valve body and operatively coupled to the camshaft, the poppet cartridge including:
a first poppet carriage having a first poppet and movable between a first poppet open position and a first poppet closed position, the first poppet being configured to engage the first chamber port when the first poppet carriage is in the first poppet closed position;
a second poppet carriage having a second poppet and movable between a second poppet open position and a second poppet closed position, the second poppet being configured to engage the second chamber port when the second poppet carriage is in the second poppet closed position;
and
a spring coupled between the first and second poppet carriages, the spring being configured to bias the first poppet toward the first poppet closed position and bias the second poppet toward the second poppet closed position;
wherein the first cam lobe of the camshaft is configured to engage the first poppet carriage to move the first poppet carriage from the first poppet closed position toward the first poppet open position, and the second cam lobe of the camshaft is configured to engage the second poppet carriage to move the second poppet carriage from the second poppet closed position toward the second poppet open position.

11 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/684,509Filed 18 Aug 2022 · us provisional application
Priority: 18 Aug 2021
Published: US 2024/0353013 A124 Oct 2024
Granted: 7 Apr 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification11 codes

F01L 1/04
Valve drive: by means of cams, camshafts, cam discs, eccentrics or the like
F16K 11/166
Only turns: with the rotating spindles at right angles to the closure members
F01L 1/047
By means of cams, camshafts, cam discs, eccentrics or the like: camshafts
F01L 1/08
By means of cams, camshafts, cam discs, eccentrics or the like: shape of cams