US20220333513A1 - Replaceable Valve Assembly - Google Patents
Replaceable Valve Assembly Download PDFInfo
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- US20220333513A1 US20220333513A1 US17/722,255 US202217722255A US2022333513A1 US 20220333513 A1 US20220333513 A1 US 20220333513A1 US 202217722255 A US202217722255 A US 202217722255A US 2022333513 A1 US2022333513 A1 US 2022333513A1
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- seat
- segment
- valve assembly
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Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
- F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
- F01L13/0021—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque by modification of rocker arm ratio
- F01L13/0026—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque by modification of rocker arm ratio by means of an eccentric
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L15/00—Valve-gear or valve arrangements, e.g. with reciprocatory slide valves, other than provided for in groups F01L17/00 - F01L29/00
- F01L15/20—Component parts, details, or accessories, not provided for in preceding subgroups of this main group
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/02—Valve drive
- F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
- F01L1/08—Shape of cams
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/26—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift-valves per cylinder
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/46—Component parts, details, or accessories, not provided for in preceding subgroups
- F01L1/462—Valve return spring arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
- F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
- F01L13/0063—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque by modification of cam contact point by displacing an intermediate lever or wedge-shaped intermediate element, e.g. Tourtelot
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L15/00—Valve-gear or valve arrangements, e.g. with reciprocatory slide valves, other than provided for in groups F01L17/00 - F01L29/00
- F01L15/02—Valve-gear or valve arrangements, e.g. with reciprocatory slide valves, other than provided for in groups F01L17/00 - F01L29/00 with valves other than cylindrical, sleeve, or part-annularly-shaped, e.g. flat D-valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L15/00—Valve-gear or valve arrangements, e.g. with reciprocatory slide valves, other than provided for in groups F01L17/00 - F01L29/00
- F01L15/18—Valves arrangements not provided for in preceding subgroups of this main group
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/02—Valve drive
- F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
- F01L1/047—Camshafts
- F01L1/053—Camshafts overhead type
- F01L2001/0535—Single overhead camshafts [SOHC]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
- F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
- F01L13/0063—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque by modification of cam contact point by displacing an intermediate lever or wedge-shaped intermediate element, e.g. Tourtelot
- F01L2013/0068—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque by modification of cam contact point by displacing an intermediate lever or wedge-shaped intermediate element, e.g. Tourtelot with an oscillating cam acting on the valve of the "BMW-Valvetronic" type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L2303/00—Manufacturing of components used in valve arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L2305/00—Valve arrangements comprising rollers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
- F01L3/08—Valves guides; Sealing of valve stem, e.g. sealing by lubricant
Definitions
- This invention relates generally to lift valves for internal combustion engines, and more specifically to a lift valve assembly comprising a lift valve within a housing that incorporates the valve, a valve seat, and a biasing spring in a selectively replaceable configuration suitable for use in a conventional internal combustion engine in place of the conventional individual components.
- the integrated assembly be configurable to be secured with a threaded interface on the assembly and within the engine block or head. It may also be an improvement to the field of art that the integrated assembly be configurable to be secured by a separate threaded securing fastener. It may also be an improvement to the field of art that the integrated assembly be configurable to be secured by fasteners interfacing an integral flange on the housing.
- a lift-valve assembly comprising a lift valve within a housing that incorporates the valve, a valve seat, and a biasing spring in a selectively replaceable configuration suitable for use in a conventional internal combustion engine in place of the conventional individual components, actuated by a cam actuating system, and controlling fluid communication between a combustion chamber and both intake and exhaust systems.
- FIG. 1A is a perspective view schematic of an exemplary replaceable lift valve assembly according to the present invention.
- FIG. 1B is a side view schematic of the exemplary replaceable lift valve assembly shown in FIG. 1A .
- FIG. 1C is a schematic cross-sectional side view of the exemplary replaceable lift valve assembly shown in FIG. 1B , cut at line A-A.
- FIG. 1D is a cutaway side view schematic of details within reference circle B shown in FIG. 1C .
- FIG. 2A is a side view schematic of an alternate exemplary replaceable lift valve assembly according to the present invention.
- FIG. 2B is a schematic cross-sectional side view of the exemplary replaceable lift valve assembly shown in FIG. 2A , cut at line C-C.
- FIG. 2C is a cutaway side view schematic of details within reference circle D shown in FIG. 2B .
- FIG. 3A is a side view schematic of an alternate exemplary replaceable lift valve assembly according to the present invention.
- FIG. 3B is a schematic cross-sectional side view of the exemplary replaceable lift valve assembly shown in FIG. 3A , cut at line E-E.
- FIG. 3C is a schematic cross-sectional side view of an alternate exemplary port segment and seat segment suitable for use in the exemplary embodiment shown in FIG. 3A , shown as if positioned and cut at line E-E.
- FIG. 4A is a side view schematic of an alternate exemplary replaceable lift valve assembly according to the present invention.
- FIG. 4B is a schematic cross-sectional side view of the exemplary replaceable lift valve assembly shown in FIG. 4A , cut at line F-F.
- FIG. 5A is a side view schematic of an alternate exemplary replaceable lift valve assembly according to the present invention.
- FIG. 5B is a schematic cross-sectional side view of the exemplary replaceable lift valve assembly shown in FIG. 5A , cut at line G-G.
- FIG. 6A is a side view schematic of an alternate exemplary replaceable lift valve assembly according to the present invention.
- FIG. 6B is a schematic cross-sectional side view of the exemplary replaceable lift valve assembly shown in FIG. 6A , cut at line H-H.
- FIG. 7A is a side view schematic of an alternate exemplary replaceable lift valve assembly according to the present invention, shown without a lift valve.
- FIG. 7B is a side view schematic of an alternate exemplary replaceable lift valve assembly according to the present invention.
- FIG. 7C is a schematic cross-sectional side view of the exemplary replaceable lift valve assembly shown in FIG. 7B , cut at line I-I.
- FIG. 8 is a partial side view schematic of a prior art lift valve configuration for an overhead valve engine.
- FIG. 9 is a partial cross-sectional side view schematic of an exemplary replaceable lift valve assembly according to the present invention configured for use in engine similar to that shown in FIGS. 8 .
- FIG. 10 is a partial cross-sectional side view schematic of a flathead engine having one lift valve configuration according to the prior art, and another an exemplary replaceable lift valve assembly according to the present invention.
- FIG. 11 is a top, side perspective schematic view of an alternate exemplary replaceable lift valve assembly according to the present invention.
- FIG. 12 is a schematic side view of the exemplary replaceable lift valve assembly shown in FIG. 11 .
- FIG. 13 is a top view of the exemplary replaceable lift valve assembly shown in FIG. 11 .
- FIG. 14 is a schematic cross-sectional side view of the exemplary replaceable lift valve assembly shown in FIG. 11 , cut at line J-J.
- FIGS. 15 and 16 are partial schematic cross-sectional side views of the detail area designated by circle K, shown in FIG. 14 .
- FIG. 17 is a top view of the exemplary replaceable lift valve assembly shown in FIG. 11 .
- FIG. 18 is a schematic cross-sectional side view of the exemplary replaceable lift valve assembly shown in FIG. 11 , cut at line L-L.
- valves and their corresponding intake and exhaust ports, may be positioned in various locations in the engine, and may have varied orientations.
- the current disclosure will discuss a configuration where the valves and valve channels are located in the engine head, and the valves are generally shown to be positioned above the bulk of the combustion chamber.
- the current device and process may be used in engines where the valves and valve channels are otherwise located, such as being positioned in the engine block, at or being below the combustion chambers.
- the engine valves and valve channels are radially circular in structure, to provide even seal and pressure distribution around the perimeters.
- valve assembly 10 comprising a pressure segment 102 , a mounting segment 104 , a port segment 106 , a seat segment 108 , and a lift valve 110 .
- the valve assembly 10 is shown with a longitudinal valve assembly axis ⁇ .
- the valve assembly may be assembled without a lift valve 110 and configured to receive a standard lift valve 110 .
- a lift valve 110 may include a valve stem 112 and a valve head 114 .
- the lift valve 110 head may have a head perimeter 132 on which may be formed a valve seat-face 134 .
- the valve stem 112 may include the valve had 114 located at one end of the valve stem 112 .
- the valve stem 112 may have a retainer notch 136 in the valve stem 112 distal the head 114 .
- the pressure segment 102 may include a spring 116 , a compression housing 118 , and a pressure retainer 120 .
- the pressure segment 102 may be generally oriented around the valve assembly axis ⁇ .
- the spring 116 maybe a helical spring that coils around the valve stem 112 of a lift valve 110 positioned within the pressure segment 102 .
- the compression housing 118 may include one or more cylindrically parallel housing components, such as an internal housing 138 and an external housing 140 .
- the exemplary parallel housing components ( 138 , 140 ) may be seen as either or both cylindrically parallel to and coaxal to the spring 116 .
- the mounting segment 104 may include a mounting seal 122 , a mounting interface 124 , a valve sleeve 126 , a valve sleeve channel 128 , and a wrench interface 130 .
- the mounting segment 104 may be generally oriented around the valve assembly axis ⁇ .
- the valve sleeve channel 128 maybe correspondently sized to receive an appropriate valve stem 112 .
- the mounting seal 122 is located intermediate the port segment 106 and the pressure segment 102 in order to ensure fluid flow is restricted from the port segment 106 area.
- the port segment 106 may consist of a plurality of ports 142 .
- the port segment 106 may be generally oriented around the valve assembly axis ⁇ .
- ports 142 are radial openings through the port segment 112 .
- the port segment 106 may include a port framework 144 to sustain the ports 142 and ensure the port segment 106 maintains the capacity for fluid flow through the ports 142 .
- seat segment 108 may include a valve seat 146 .
- the seat segment 108 may be generally oriented around the valve assembly axis ⁇ .
- the valve seat 146 may be circular in shape and oriented perpendicular to the valve assembly axis ⁇ .
- the shape of the valve seat 146 may form a valve orifice 148 .
- An appropriately sized lift valve 110 will have a valve head 114 correspondently sized to the valve orifice 148 .
- the inside perimeter 150 of the valve orifice 148 may comprise a valve seat seat-face 152 .
- valve seat seat-face 152 is complementary in shape to the valve seat-face 134 .
- the interface of the valve seat-face 134 and the valve seat seat-face 152 create a pressure chamber seal 154 .
- the pressure chamber seal 154 works in concert with other seals to retain pressure within a periodically pressurized chamber 20 , such as an internal combustion engine combustion chamber.
- the seats segment 108 may include a seat seal 156 having a seat appendage 158 , cylindrically parallel to the valve orifice 148 and a seat void 160 .
- Exemplary seat seal 156 in cooperation with other seals, creates a seal between the seat segment 208 and the engine block or head in which the valve assembly 210 may be installed.
- This exemplary seat seal 156 is particularly suitable for securing an engine insert where the engine or head material is of a softer nature then the insert.
- the exemplary securement embodiment is based on a design by the current inventor. The inventor's design is explained in detail in U.S. patent application Ser. No. 16/134,877, filed on Sep.
- valve assembly 210 comprising a pressure segment 102 , a mounting segment 104 , a port segment 106 , a seat segment 208 , and a lift valve 110 .
- the pressure segment 102 , mounting segment 104 , and port segment 106 are similar to those of the prior exemplary embodiment.
- This exemplary embodiment may be better suited for use in an engine or head of made from more rigid material, such as cast iron.
- this exemplary embodiment employs an alternate configuration for the seat segment 208 , which forms an alternate exemplary seat seal 256 between the seat segment 208 and the engine or head in which the valve assembly 210 may be installed.
- the alternate exemplary valve seat 246 may also include an alternate inside perimeter 250 and an alternate pressure chamber seal 254 .
- This alternate exemplary embodiment may include an alternate embodiment valve seat 246 generally oriented around a similar valve assembly axis ⁇ , and having a circular shape oriented perpendicular to the valve assembly axis ⁇ .
- This alternate exemplary embodiment may also still include a valve seat seat-face 252 and corresponding valve seat-face 134 , which together create a pressure chamber seal 254 .
- a principal difference is seal 210 , which may be made from a soft metal. As such, seal 210 is intended to deform between the alternate embodiment valve seat 246 and the engine component in which the valve assembly 210 may be installed.
- valve assembly 310 comprising a pressure segment 302 , a mounting segment 104 , a port segment 106 , and either a seat segment 108 , or, as shown in FIG. 3C , an alternate seat segment 208 .
- the choice of seat segment ( 108 , 208 ) may depend on the material of the engine in which the valve assembly 310 may be installed.
- the exemplary alternate embodiment valve assembly 310 includes a hollow valve 380 , through which a fluid may be passed to promote cooling of the hollow valve 380 .
- the alternate embodiment valve assembly 310 may include a cooling connection 362 which may be secured to the hollow valve 380 distal the valve head 114 with a cooling securement 364 .
- the cooling securement 364 may be secured with cooling fastener 366 .
- cooling connection 362 may be connected to a cooling line providing a flow of fluid.
- a suitable flow of fluid may be obtained from a cooling system of an engine in which the exemplary valve assembly 310 may be used. Cooling systems with suitable cooling fluids are known in the field, and may include a typical radiator and radiator coolant flow system. A small cooling line (not shown) may be tapped into the cooling system to provide a supply of cooling fluid. In the exemplary embodiment, the cooling fluid may enter the cooling connection 362 through inlet port 390 by use of a suitable connector (not shown).
- cooling fluid introduced to the cooling connection 362 through inlet port 390 may flow into a valve core 386 through valve inlet 382 at the end of the hollow valve 380 opposite the valve head 114 .
- cooling fluid would then leave the valve core 386 through valve outlet 384 and enter the interior of compression housing 118 .
- pressure is applied to the cooling connection 362 to open the valve assembly 110 .
- Such action also moves the internal housing segment 138 in relationship to the external housing segment 140 .
- the motion of internal housing segment 138 in relationship to external housing segment 140 creates a pumping action.
- Fluid pressure within compression housing 118 forces the cooling fluid out outlet port 392 .
- a suitable connector may connect to outlet port 392 an provide fluid communication for the cooling fluid to return to the cooling system (not shown).
- the alternate wrench interface 340 may include an alternate mounting interface 424 .
- the exemplary mounting interface 424 is a fine set of threads, potentially similar to threads found on spark plugs.
- the exemplary wrench interface 430 has a securement interface 432 with the exemplary mounting segment 404 .
- the exemplary securement interface 432 permits motion between the main portion of the mounting segment 404 and the wrench interface 430 such that the wrench interface 430 may be turned to progressively engage correspondingly shaped threads in an engine in which the exemplary valve assembly 410 may be installed, while the balance of the mounting segment 404 remains rotationally still. Such progressive engagement of the threads of the securement interface 432 provide for a secure attachment of the valve assembly 410 within an engine.
- valve assembly 510 is shown with an alternate modified mounting segment 504 .
- a mounting interface 524 is moved from the mounting segment 504 to the seat segment 508 .
- mounting segment 408 may still comprises a mounting seal 122 .
- the mounting interface 524 may comprise threads on the exterior of the alternate valve seat 546 .
- the threads of the mounting interface 524 may correspond in size and shape to threads in an engine in which the exemplary valve assembly 510 may be installed, in order to provide secure attachment of the alternate valve assembly 510 within an engine.
- alternate mounting segment 604 includes an alternate mounting interface 624 which may have a flange protruding radially outward from the valve assembly access ⁇ .
- alternate mounting interface 624 may support securement of the valve assembly 610 by various means, including clamps, bolts, and a securement plate (not shown), to name a few examples.
- FIG. 8 depicts the prior art, where the components that support the function of the valve 117 are individual components and must be installed and removed independently.
- FIG. 9 depicts a valve assembly 210 , previously shown in FIGS. 2 a , 2 B, and 2 C, configured to replace the individual components within the overhead valve configuration. The replacement may include modification of the engine head, but the balance of the engine, including the valve actuation system may remain the same.
- valve assembly 710 may be particularly well suited for use in an engine design typically referred to as a “flathead,” an example of which is depicted in FIG. 10 with both a conventional valve configuration and a valve assembly 710 according to the current disclosure.
- Alternate exemplary embodiment 710 is shown comprising a pressure segment 102 , an alternate mounting segment 704 , a port segment 106 , and an alternate seat segment 708 .
- the valve assembly may be assembled without a lift valve 110 . With the lift valve 110 removed the valve orifice 748 may be more evident, without the valve head 114 in place to obscure the valve orifice 748 .
- the valve assembly 10 is shown with a longitudinal valve assembly axis ⁇ .
- the alternate mounting segment 704 comprises a mounting surface of threads on the mounting segment body. Though inverted in this alternate embodiment, the threads function as previously describe to secure the valve assembly 710 in an appropriate engine.
- the alternate seat segment 708 comprises a wrench interface 730 .
- the alternate seat segment 708 also comprises an alternate seat seal 756 on the opposite surface of the valve alternate valve seat 746 from the alternate wrench interface 730 . Since the exemplary embodiment will be installed inverted, the wrench interface 730 must remain exposed on the side of the valve seat 746 opposite the port segment 106 . It should be understood by one having ordinary skill in the art that the valve actuator linkage in a “flathead” configuration will be within the engine block, below the valve assembly 710 .
- any of the depicted valve assemblies may have an open position where the pressure segment ( 102 , 202 ) is compressed and the valve head 114 extends from the valve orifice ( 148 , 748 ) and a closed position where the pressure segment ( 102 , 202 ) is extended and the valve seat-face 134 impinges against the seat seat-face ( 152 , 252 ).
- valve seat ( 146 , 246 ) inside perimeter ( 150 , 250 ) sized to correspond to the valve head perimeter 132 so that the valve seat-face 134 and the seat seat-face ( 152 , 252 ) form a tight seal when the valve is in the closed position.
- a metered valve 1110 may be particularly suited for implementation with compressible gas fuels.
- a metered valve 1110 may have a pressure segment 1102 , a mounting segment 104 , a port segment 1106 , and a seat segment 1108 .
- the metered valve 1110 may have a crown 1161 at one end of a valve body 1164 , distal the port segment 1106 .
- a wrenching surface 1130 may be adjacent to the mounting segment 104 .
- the crown 1161 may wrap over a valve body neck 1162 , and be configured to slidably engage with the valve body neck 1162 .
- an inlet port interface 1176 in the valve body neck 1162 , may be accessible through an orifice in the crown 1161 .
- a crown 1161 may extend within the valve body neck 1162 , and comprise an inlet port 1190 .
- the inlet port interface 1176 may provide fluid communication with the inlet port 1190 , which, in turn, may provide fluid communication with a compression chamber 1191 and an outlet port 1192 .
- the compression chamber 1191 may reside within a valve 1170 .
- the valve body 1164 may house and slidably engage a valve 1170 , which in an exemplary embodiment, may comprise a valve upper 1172 and a valve bottom 1174 .
- the crown 1161 may slidably engage the valve 1170 and apply fluid pressure to the compression chamber 1191 . Movement of the crown 1161 with respect to the body neck 1162 may terminate the fluid communication between the inlet port interface 1176 and the inlet port 1190 , closing the compression chamber 1191 , and permitting pressure to develop within the compression chamber 1191 .
- the crown 1161 may have a stroke distance S, relative to the mounting segment 104 .
- the stroke distance S may comprise a stroke load SL distance and a stroke release distance SR.
- a stroke load distance SL may be the distance the crown 1161 may travel before it makes contact with the valve 1170
- a stroke release distance SR may be the distance the crown 1161 may travel once it makes contact with the valve 1170 .
- pressure is increased on a fluid in the compression chamber 1191 .
- the flared valve head 1114 of the valve bottom 1174 moves away from the valve body 1164 in the port segment 1106 .
- fluid pressurized within the compression chamber 1191 may travel through the valve core 1186 , to be released out outlet port 1192 .
- the metered valve 1110 may have a closed position, where the flared valve head 1114 of the valve 1170 seats securely against the valve body 1164 , blocking fluid flow from the outlet port 1192 , the compression chamber 1191 , and the valve core 1186 .
- the metered valve 1110 may have an open position, where the flared valve head 1114 of the valve 1170 is separated away from the valve body 1164 , permitting fluid flow from the outlet port 1192 , the compression chamber 1191 , and the valve core 1186 .
- recover spring 1178 may provide force to return the valve bottom 1174 to the closed position from the open position, reestablishing the stroke release distance SR. Additionally, spring 1116 may provide force to return the crown 1161 to an extended position, at the full extent of stroke load distance SL, as well as the full extent of stroke distance S.
Abstract
A lift-valve assembly, comprising a lift valve within a housing that includes a pressure segment, a mounting segment, a port segment, and a seat segment. The lift-valve assembly may receive a lift valve, and the housing including a valve seat and a biasing spring in a selectively replaceable configuration suitable for use in a conventional internal combustion engine in place of the conventional individual components, actuated by a cam actuating system, and controlling fluid communication between a combustion chamber and both intake and exhaust systems.
Description
- This application claims the benefit of U.S. Provisional Application No. 63/175,453, filed on Apr. 15, 2021, by the present inventor, entitled “replaceable Valve Assembly.” The prior submission related to engine insert technologies is hereby incorporated by reference in its entirety for all allowable purposes, including the incorporation and preservation of any and all rights to patentable subject matter of the inventor, such as features, elements, processes and process steps, and improvements that may supplement or relate to the subject matter described herein.
- Not Applicable
- This invention relates generally to lift valves for internal combustion engines, and more specifically to a lift valve assembly comprising a lift valve within a housing that incorporates the valve, a valve seat, and a biasing spring in a selectively replaceable configuration suitable for use in a conventional internal combustion engine in place of the conventional individual components.
- Current configurations require complex and careful assembly and disassembly, which include the manipulation of springs under substantial pressure. Inspection and replacement are both dangerous and time-consuming. Because of these factors, valve inspection and maintenance are frequently done less frequently than is prudent, especially in mission-critical engines, such as aircraft and military vehicles.
- It would be an improvement to the field of art to have the lift valve assembly that could be easily installed and removed as an integrated assembly. It may also be an improvement to the field of art that the integrated assembly be configurable to be secured with a threaded interface on the assembly and within the engine block or head. It may also be an improvement to the field of art that the integrated assembly be configurable to be secured by a separate threaded securing fastener. It may also be an improvement to the field of art that the integrated assembly be configurable to be secured by fasteners interfacing an integral flange on the housing.
- The present development is, among other things, a lift-valve assembly, comprising a lift valve within a housing that incorporates the valve, a valve seat, and a biasing spring in a selectively replaceable configuration suitable for use in a conventional internal combustion engine in place of the conventional individual components, actuated by a cam actuating system, and controlling fluid communication between a combustion chamber and both intake and exhaust systems.
-
FIG. 1A is a perspective view schematic of an exemplary replaceable lift valve assembly according to the present invention. -
FIG. 1B is a side view schematic of the exemplary replaceable lift valve assembly shown inFIG. 1A . -
FIG. 1C is a schematic cross-sectional side view of the exemplary replaceable lift valve assembly shown inFIG. 1B , cut at line A-A. -
FIG. 1D is a cutaway side view schematic of details within reference circle B shown inFIG. 1C . -
FIG. 2A is a side view schematic of an alternate exemplary replaceable lift valve assembly according to the present invention. -
FIG. 2B is a schematic cross-sectional side view of the exemplary replaceable lift valve assembly shown inFIG. 2A , cut at line C-C. -
FIG. 2C is a cutaway side view schematic of details within reference circle D shown inFIG. 2B . -
FIG. 3A is a side view schematic of an alternate exemplary replaceable lift valve assembly according to the present invention. -
FIG. 3B is a schematic cross-sectional side view of the exemplary replaceable lift valve assembly shown inFIG. 3A , cut at line E-E. -
FIG. 3C is a schematic cross-sectional side view of an alternate exemplary port segment and seat segment suitable for use in the exemplary embodiment shown inFIG. 3A , shown as if positioned and cut at line E-E. -
FIG. 4A is a side view schematic of an alternate exemplary replaceable lift valve assembly according to the present invention. -
FIG. 4B is a schematic cross-sectional side view of the exemplary replaceable lift valve assembly shown inFIG. 4A , cut at line F-F. -
FIG. 5A is a side view schematic of an alternate exemplary replaceable lift valve assembly according to the present invention. -
FIG. 5B is a schematic cross-sectional side view of the exemplary replaceable lift valve assembly shown inFIG. 5A , cut at line G-G. -
FIG. 6A is a side view schematic of an alternate exemplary replaceable lift valve assembly according to the present invention. -
FIG. 6B is a schematic cross-sectional side view of the exemplary replaceable lift valve assembly shown inFIG. 6A , cut at line H-H. -
FIG. 7A is a side view schematic of an alternate exemplary replaceable lift valve assembly according to the present invention, shown without a lift valve. -
FIG. 7B is a side view schematic of an alternate exemplary replaceable lift valve assembly according to the present invention. -
FIG. 7C is a schematic cross-sectional side view of the exemplary replaceable lift valve assembly shown inFIG. 7B , cut at line I-I. -
FIG. 8 is a partial side view schematic of a prior art lift valve configuration for an overhead valve engine. -
FIG. 9 is a partial cross-sectional side view schematic of an exemplary replaceable lift valve assembly according to the present invention configured for use in engine similar to that shown inFIGS. 8 . -
FIG. 10 is a partial cross-sectional side view schematic of a flathead engine having one lift valve configuration according to the prior art, and another an exemplary replaceable lift valve assembly according to the present invention. -
FIG. 11 is a top, side perspective schematic view of an alternate exemplary replaceable lift valve assembly according to the present invention. -
FIG. 12 is a schematic side view of the exemplary replaceable lift valve assembly shown inFIG. 11 . -
FIG. 13 is a top view of the exemplary replaceable lift valve assembly shown inFIG. 11 . -
FIG. 14 is a schematic cross-sectional side view of the exemplary replaceable lift valve assembly shown inFIG. 11 , cut at line J-J. -
FIGS. 15 and 16 are partial schematic cross-sectional side views of the detail area designated by circle K, shown inFIG. 14 . -
FIG. 17 is a top view of the exemplary replaceable lift valve assembly shown inFIG. 11 . -
FIG. 18 is a schematic cross-sectional side view of the exemplary replaceable lift valve assembly shown inFIG. 11 , cut at line L-L. - It is understood that valves, and their corresponding intake and exhaust ports, may be positioned in various locations in the engine, and may have varied orientations. The current disclosure will discuss a configuration where the valves and valve channels are located in the engine head, and the valves are generally shown to be positioned above the bulk of the combustion chamber. However, the current device and process may be used in engines where the valves and valve channels are otherwise located, such as being positioned in the engine block, at or being below the combustion chambers. It is also understood that the engine valves and valve channels are radially circular in structure, to provide even seal and pressure distribution around the perimeters. It is for that reason terms like “cylindrical,” “cylindrically parallel,” “radially parallel,” and “coaxial” are used to describe and mean multiple surfaces that uniformly encircle a common axis, and each surface at a different distance from that axis, which includes that adjacent parallel surfaces may be touching.
- Referring now to
FIGS. 1A, 1B, 1C, and 1D , an exemplary embodiment of avalve assembly 10 is shown comprising apressure segment 102, a mountingsegment 104, aport segment 106, aseat segment 108, and alift valve 110. For reference purposes, thevalve assembly 10 is shown with a longitudinal valve assembly axis α. In an exemplary embodiment, the valve assembly may be assembled without alift valve 110 and configured to receive astandard lift valve 110. - In an exemplary embodiment, a
lift valve 110 may include avalve stem 112 and avalve head 114. In an exemplary embodiment, thelift valve 110 head may have a head perimeter 132 on which may be formed a valve seat-face 134. In an exemplary embodiment, thevalve stem 112 may include the valve had 114 located at one end of thevalve stem 112. In the exemplary embodiment, thevalve stem 112 may have aretainer notch 136 in thevalve stem 112 distal thehead 114. - In an exemplary embodiment, the
pressure segment 102 may include aspring 116, acompression housing 118, and apressure retainer 120. In the exemplary embodiment, thepressure segment 102 may be generally oriented around the valve assembly axis α. In an exemplary embodiment, thespring 116 maybe a helical spring that coils around thevalve stem 112 of alift valve 110 positioned within thepressure segment 102. In an exemplary embodiment, thecompression housing 118 may include one or more cylindrically parallel housing components, such as aninternal housing 138 and anexternal housing 140. The exemplary parallel housing components (138, 140) may be seen as either or both cylindrically parallel to and coaxal to thespring 116. - In an exemplary embodiment, the mounting
segment 104 may include a mountingseal 122, a mountinginterface 124, avalve sleeve 126, a valve sleeve channel 128, and awrench interface 130. In the exemplary embodiment, the mountingsegment 104 may be generally oriented around the valve assembly axis α. In the exemplary embodiment, the valve sleeve channel 128 maybe correspondently sized to receive anappropriate valve stem 112. In the exemplary embodiment, the mountingseal 122 is located intermediate theport segment 106 and thepressure segment 102 in order to ensure fluid flow is restricted from theport segment 106 area. - In the exemplary embodiment, the
port segment 106 may consist of a plurality ofports 142. In the exemplary embodiment, theport segment 106 may be generally oriented around the valve assembly axis α. In the exemplary embodiment of theport segment 106,ports 142 are radial openings through theport segment 112. In the exemplary embodiment, theport segment 106 may include aport framework 144 to sustain theports 142 and ensure theport segment 106 maintains the capacity for fluid flow through theports 142. - Paying particular attention to
FIG. 1D ,seat segment 108 may include avalve seat 146. In the exemplary embodiment, theseat segment 108 may be generally oriented around the valve assembly axis α. In the exemplary embodiment, thevalve seat 146 may be circular in shape and oriented perpendicular to the valve assembly axis α. In the exemplary embodiment, the shape of thevalve seat 146 may form avalve orifice 148. An appropriatelysized lift valve 110 will have avalve head 114 correspondently sized to thevalve orifice 148. In the exemplary embodiment, the inside perimeter 150 of thevalve orifice 148 may comprise a valve seat seat-face 152. In the exemplary embodiment, the valve seat seat-face 152 is complementary in shape to the valve seat-face 134. In the exemplary embodiment, the interface of the valve seat-face 134 and the valve seat seat-face 152 create a pressure chamber seal 154. In the exemplary embodiment, the pressure chamber seal 154 works in concert with other seals to retain pressure within a periodicallypressurized chamber 20, such as an internal combustion engine combustion chamber. - Referring now primarily still to
FIG. 1D , in the exemplary embodiment, theseats segment 108 may include aseat seal 156 having aseat appendage 158, cylindrically parallel to thevalve orifice 148 and aseat void 160.Exemplary seat seal 156, in cooperation with other seals, creates a seal between theseat segment 208 and the engine block or head in which thevalve assembly 210 may be installed. Thisexemplary seat seal 156 is particularly suitable for securing an engine insert where the engine or head material is of a softer nature then the insert. The exemplary securement embodiment is based on a design by the current inventor. The inventor's design is explained in detail in U.S. patent application Ser. No. 16/134,877, filed on Sep. 18, 2018, and now issued U.S. Pat. No. 10,731,522, entitled “Secure Engine Insert and Process for Installing,” issued on Aug. 4, 2020. This patent and the patent applications from which it depends are all included herein by reference for all legal purposes, and primarily to include the elements of that invention, as they may relate, to the present device. - Referring now primarily to
FIGS. 2A, 2B, and 2C , an alternate exemplary embodiment of avalve assembly 210 is shown comprising apressure segment 102, a mountingsegment 104, aport segment 106, aseat segment 208, and alift valve 110. In the particular exemplary embodiment, thepressure segment 102, mountingsegment 104, andport segment 106, are similar to those of the prior exemplary embodiment. This exemplary embodiment may be better suited for use in an engine or head of made from more rigid material, such as cast iron. As such, this exemplary embodiment employs an alternate configuration for theseat segment 208, which forms an alternateexemplary seat seal 256 between theseat segment 208 and the engine or head in which thevalve assembly 210 may be installed. The alternateexemplary valve seat 246 may also include an alternate inside perimeter 250 and an alternate pressure chamber seal 254. This alternate exemplary embodiment may include an alternateembodiment valve seat 246 generally oriented around a similar valve assembly axis α, and having a circular shape oriented perpendicular to the valve assembly axis α. This alternate exemplary embodiment may also still include a valve seat seat-face 252 and corresponding valve seat-face 134, which together create a pressure chamber seal 254. In this exemplary embodiment, a principal difference isseal 210, which may be made from a soft metal. As such,seal 210 is intended to deform between the alternateembodiment valve seat 246 and the engine component in which thevalve assembly 210 may be installed. - Referring now primarily to
FIGS. 3A, 3B, and 3C , an alternate exemplary embodiment of avalve assembly 310 is shown comprising apressure segment 302, a mountingsegment 104, aport segment 106, and either aseat segment 108, or, as shown inFIG. 3C , analternate seat segment 208. The choice of seat segment (108, 208) may depend on the material of the engine in which thevalve assembly 310 may be installed. The exemplary alternateembodiment valve assembly 310 includes ahollow valve 380, through which a fluid may be passed to promote cooling of thehollow valve 380. The alternateembodiment valve assembly 310 may include acooling connection 362 which may be secured to thehollow valve 380 distal thevalve head 114 with acooling securement 364. In the exemplary embodiment, the coolingsecurement 364 may be secured with coolingfastener 366. - In the exemplary embodiment, cooling
connection 362 may be connected to a cooling line providing a flow of fluid. A suitable flow of fluid may be obtained from a cooling system of an engine in which theexemplary valve assembly 310 may be used. Cooling systems with suitable cooling fluids are known in the field, and may include a typical radiator and radiator coolant flow system. A small cooling line (not shown) may be tapped into the cooling system to provide a supply of cooling fluid. In the exemplary embodiment, the cooling fluid may enter thecooling connection 362 throughinlet port 390 by use of a suitable connector (not shown). - In the exemplary embodiment, cooling fluid introduced to the
cooling connection 362 throughinlet port 390 may flow into avalve core 386 throughvalve inlet 382 at the end of thehollow valve 380 opposite thevalve head 114. In the exemplary embodiment, cooling fluid would then leave thevalve core 386 throughvalve outlet 384 and enter the interior ofcompression housing 118. During typical operation of thevalve assembly 310, pressure is applied to thecooling connection 362 to open thevalve assembly 110. Such action also moves theinternal housing segment 138 in relationship to theexternal housing segment 140. The motion ofinternal housing segment 138 in relationship toexternal housing segment 140 creates a pumping action. Fluid pressure withincompression housing 118 forces the cooling fluid outoutlet port 392. Once appropriately primed, the fluid flow throughout thevalve assembly 310 will be supported by the pumping action of thecompression housing 118. A suitable connector (not shown) may connect tooutlet port 392 an provide fluid communication for the cooling fluid to return to the cooling system (not shown). - Referring now to
FIGS. 4A and 4B , an additional alternate exemplary embodiment valve assembly 410 is shown with a modified mountingsegment 404. In the exemplary embodiment, the alternate wrench interface 340 may include analternate mounting interface 424. in the exemplary embodiment, the exemplary mountinginterface 424 is a fine set of threads, potentially similar to threads found on spark plugs. Theexemplary wrench interface 430 has asecurement interface 432 with theexemplary mounting segment 404. Theexemplary securement interface 432 permits motion between the main portion of the mountingsegment 404 and thewrench interface 430 such that thewrench interface 430 may be turned to progressively engage correspondingly shaped threads in an engine in which the exemplary valve assembly 410 may be installed, while the balance of the mountingsegment 404 remains rotationally still. Such progressive engagement of the threads of thesecurement interface 432 provide for a secure attachment of the valve assembly 410 within an engine. - Referring now to
FIGS. 5A and 5B , an additional alternate exemplary embodiment valve assembly 510 is shown with an alternate modified mountingsegment 504. In the exemplary embodiment valve assembly 510, a mountinginterface 524 is moved from the mountingsegment 504 to theseat segment 508. In the exemplary embodiment, mounting segment 408 may still comprises a mountingseal 122. In the exemplary embodiment, the mountinginterface 524 may comprise threads on the exterior of the alternate valve seat 546. The threads of the mountinginterface 524 may correspond in size and shape to threads in an engine in which the exemplary valve assembly 510 may be installed, in order to provide secure attachment of the alternate valve assembly 510 within an engine. - Referring now to
FIGS. 6A and 6B , an additional alternate exemplaryembodiment valve assembly 610 is shown with an alternate modified mounting segment 604. In the exemplary alternate embodiment ofvalve assembly 610, alternate mounting segment 604 includes an alternate mounting interface 624 which may have a flange protruding radially outward from the valve assembly access α. In the exemplary embodiment, the alternate mounting interface 624 may support securement of thevalve assembly 610 by various means, including clamps, bolts, and a securement plate (not shown), to name a few examples. - The previous exemplary embodiments have primarily focused on an overhead valve configuration widely used in engines known in the field.
FIG. 8 depicts the prior art, where the components that support the function of the valve 117 are individual components and must be installed and removed independently.FIG. 9 depicts avalve assembly 210, previously shown inFIGS. 2a , 2B, and 2C, configured to replace the individual components within the overhead valve configuration. The replacement may include modification of the engine head, but the balance of the engine, including the valve actuation system may remain the same. - Referring now primarily to
FIGS. 7A, 7B, 7C, and 10 , an additional exemplary embodiment is shown that may be particularly suited for installation from thevalve head 114 end of thevalve assembly 710, or valve stem 112 first.Exemplary valve assembly 710 may be particularly well suited for use in an engine design typically referred to as a “flathead,” an example of which is depicted inFIG. 10 with both a conventional valve configuration and avalve assembly 710 according to the current disclosure. - Alternate
exemplary embodiment 710 is shown comprising apressure segment 102, analternate mounting segment 704, aport segment 106, and analternate seat segment 708. As shown inFIG. 7A , the valve assembly may be assembled without alift valve 110. With thelift valve 110 removed thevalve orifice 748 may be more evident, without thevalve head 114 in place to obscure thevalve orifice 748. For reference purposes, thevalve assembly 10 is shown with a longitudinal valve assembly axis α. - In the exemplary embodiment, the
alternate mounting segment 704 comprises a mounting surface of threads on the mounting segment body. Though inverted in this alternate embodiment, the threads function as previously describe to secure thevalve assembly 710 in an appropriate engine. - In the exemplary embodiment, the
alternate seat segment 708 comprises awrench interface 730. Thealternate seat segment 708 also comprises an alternate seat seal 756 on the opposite surface of the valvealternate valve seat 746 from thealternate wrench interface 730. Since the exemplary embodiment will be installed inverted, thewrench interface 730 must remain exposed on the side of thevalve seat 746 opposite theport segment 106. It should be understood by one having ordinary skill in the art that the valve actuator linkage in a “flathead” configuration will be within the engine block, below thevalve assembly 710. - During operation, it should be understood by one having ordinary skill in the art that any of the depicted valve assemblies (10, 210, 310, 410, 510, 610, 710) may have an open position where the pressure segment (102, 202) is compressed and the
valve head 114 extends from the valve orifice (148, 748) and a closed position where the pressure segment (102, 202) is extended and the valve seat-face 134 impinges against the seat seat-face (152, 252). It should also be appreciated that a valve seat (146, 246) inside perimeter (150, 250) sized to correspond to the valve head perimeter 132 so that the valve seat-face 134 and the seat seat-face (152, 252) form a tight seal when the valve is in the closed position. - Referring now primarily to
FIGS. 11 through 18 , an additional exemplary embodiment meteredvalve 1110 is shown that may be particularly suited for implementation with compressible gas fuels. In an exemplary embodiment, ametered valve 1110 may have apressure segment 1102, a mountingsegment 104, aport segment 1106, and aseat segment 1108. In an exemplary embodiment, the meteredvalve 1110 may have acrown 1161 at one end of avalve body 1164, distal theport segment 1106. In an exemplary embodiment, a wrenching surface 1130 may be adjacent to the mountingsegment 104. - In an exemplary embodiment, the
crown 1161 may wrap over avalve body neck 1162, and be configured to slidably engage with thevalve body neck 1162. In an exemplary embodiment, aninlet port interface 1176, in thevalve body neck 1162, may be accessible through an orifice in thecrown 1161. In an exemplary embodiment, acrown 1161 may extend within thevalve body neck 1162, and comprise aninlet port 1190. In an exemplary embodiment, theinlet port interface 1176 may provide fluid communication with theinlet port 1190, which, in turn, may provide fluid communication with acompression chamber 1191 and anoutlet port 1192. In an exemplary embodiment, thecompression chamber 1191 may reside within avalve 1170. - In an exemplary embodiment, the
valve body 1164 may house and slidably engage avalve 1170, which in an exemplary embodiment, may comprise a valve upper 1172 and avalve bottom 1174. In an exemplary embodiment, thecrown 1161 may slidably engage thevalve 1170 and apply fluid pressure to thecompression chamber 1191. Movement of thecrown 1161 with respect to thebody neck 1162 may terminate the fluid communication between theinlet port interface 1176 and theinlet port 1190, closing thecompression chamber 1191, and permitting pressure to develop within thecompression chamber 1191. - In an exemplary embodiment, the
crown 1161 may have a stroke distance S, relative to the mountingsegment 104. The stroke distance S, may comprise a stroke load SL distance and a stroke release distance SR. In an exemplary embodiment, a stroke load distance SL may be the distance thecrown 1161 may travel before it makes contact with thevalve 1170, and a stroke release distance SR may be the distance thecrown 1161 may travel once it makes contact with thevalve 1170. - In an exemplary embodiment, during the compressive travel of the stroke load distance SL, pressure is increased on a fluid in the
compression chamber 1191. In an exemplary embodiment, during the compressive travel of the stroke release distance SR, the flaredvalve head 1114 of thevalve bottom 1174 moves away from thevalve body 1164 in theport segment 1106. In an exemplary embodiment, during the compressive travel of the stroke release distance SR, fluid pressurized within thecompression chamber 1191 may travel through thevalve core 1186, to be released outoutlet port 1192. As such, the meteredvalve 1110 may have a closed position, where the flaredvalve head 1114 of thevalve 1170 seats securely against thevalve body 1164, blocking fluid flow from theoutlet port 1192, thecompression chamber 1191, and thevalve core 1186. Alternatively, the meteredvalve 1110 may have an open position, where the flaredvalve head 1114 of thevalve 1170 is separated away from thevalve body 1164, permitting fluid flow from theoutlet port 1192, thecompression chamber 1191, and thevalve core 1186. - In an exemplary embodiment, recover
spring 1178 may provide force to return thevalve bottom 1174 to the closed position from the open position, reestablishing the stroke release distance SR. Additionally,spring 1116 may provide force to return thecrown 1161 to an extended position, at the full extent of stroke load distance SL, as well as the full extent of stroke distance S. - The foregoing disclosure and description of the invention is illustrative and explanatory thereof. The examples contained in this specification are merely possible implementations of the current device, and alternatives to the particular features and elements may be changed without departing from the spirit of the invention. The present invention should only be limited by the following claims and their legal equivalents, since the provided exemplary embodiments are only examples of how the invention may be employed and are not exhaustive.
Claims (5)
1. A valve assembly for controlling fluid communication into a periodically pressurized chamber, comprising:
a pressure segment, a mounting segment, a port segment, and a seat segment;
the pressure segment including a spring and a tension retainer;
the mounting segment including a mounting interface;
the port segment including at least one port and a port framework;
the seat segment including a valve seat and a pressure chamber seal; and
the pressure chamber seal sealing the valve assembly from pressures within the periodically pressurized chamber.
2. The valve assembly of claim 1 , further comprising:
a lift valve having a valve stem and a valve head;
the valve head having a valve head perimeter; and
the valve head perimeter having a valve seat face.
3. The valve assembly of claim 1 , further comprising:
the valve seat having an inside perimeter forming a round valve orifice, and a seat seat-face on the inside perimeter.
4. The valve assembly of claim 2 , further comprising:
the valve seat having a valve seat inside perimeter forming a round valve orifice, and a valve seat-face on the inside perimeter;
the valve assembly having an open position where the pressure segment is compressed and the valve head extends from the valve orifice; and
the valve assembly having a closed position where the pressure segment is extended and the valve seat-face impinges against the seat seat-face.
5. The valve assembly of claim 4 , further comprising:
the valve seat inside perimeter sized to correspond to the valve head perimeter so that the valve seat-face and the seat seat-face form a tight seal when the valve is in the closed position.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US17/722,255 US20220333513A1 (en) | 2021-04-15 | 2022-04-15 | Replaceable Valve Assembly |
Applications Claiming Priority (2)
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US202163175453P | 2021-04-15 | 2021-04-15 | |
US17/722,255 US20220333513A1 (en) | 2021-04-15 | 2022-04-15 | Replaceable Valve Assembly |
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US20220333513A1 true US20220333513A1 (en) | 2022-10-20 |
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US17/722,255 Abandoned US20220333513A1 (en) | 2021-04-15 | 2022-04-15 | Replaceable Valve Assembly |
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Citations (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1254976A (en) * | 1917-02-15 | 1918-01-29 | Ettore Bugatti | Engine-valve. |
US1343111A (en) * | 1919-03-26 | 1920-06-08 | Cattaneo Giustino | Cooling arrangement for exhaust-valves of internal-combustion engines |
US1752790A (en) * | 1926-01-28 | 1930-04-01 | Adrian C Estep | Valve cage |
US1760497A (en) * | 1929-05-04 | 1930-05-27 | Hasbrouck Augustus | Removable valve cage for internal-combustion engines |
US1893209A (en) * | 1932-05-11 | 1933-01-03 | Ingersoll Rand Co | Valve cage |
US2063779A (en) * | 1931-06-23 | 1936-12-08 | Baj Alessandro | Means for cooling the valves in internal combustion engines |
US3589346A (en) * | 1969-05-06 | 1971-06-29 | Robert C Warren | Overhead valve action and air pollutant device |
US3742927A (en) * | 1970-05-27 | 1973-07-03 | Semt | Valve for an internal combustion engine or the like |
US3799139A (en) * | 1970-09-23 | 1974-03-26 | Semt | Method and device for protecting the stem of an exhaust valve of an internal combustion engine or the like against corrosion |
US4000730A (en) * | 1974-03-07 | 1977-01-04 | Maschinenfabrik Augsburg-Nurnberg Ag | Valve cage structure for internal combustion engines, particularly adapted for fluid cooling |
US4006592A (en) * | 1975-11-17 | 1977-02-08 | Warren Glenn B | Valve arrangements for reciprocating piston machines |
US4008695A (en) * | 1974-01-29 | 1977-02-22 | Societe D'etudes De Machines Thermiques | Cooled integral valve chest for an internal combustion engine and method for making same |
US4147149A (en) * | 1976-05-24 | 1979-04-03 | Sulzer Brothers Limited | Exhaust valve for a reciprocating internal combustion engine |
US4182282A (en) * | 1977-08-05 | 1980-01-08 | Societe D'etudes De Machines Thermiques S.E.M.T. | Mushroom valve housing with fluid coolant circulation for internal combustion engines |
US4200066A (en) * | 1977-01-28 | 1980-04-29 | Sulzer Brothers Limited | Internal combustion piston engine |
-
2022
- 2022-04-15 US US17/722,255 patent/US20220333513A1/en not_active Abandoned
Patent Citations (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1254976A (en) * | 1917-02-15 | 1918-01-29 | Ettore Bugatti | Engine-valve. |
US1343111A (en) * | 1919-03-26 | 1920-06-08 | Cattaneo Giustino | Cooling arrangement for exhaust-valves of internal-combustion engines |
US1752790A (en) * | 1926-01-28 | 1930-04-01 | Adrian C Estep | Valve cage |
US1760497A (en) * | 1929-05-04 | 1930-05-27 | Hasbrouck Augustus | Removable valve cage for internal-combustion engines |
US2063779A (en) * | 1931-06-23 | 1936-12-08 | Baj Alessandro | Means for cooling the valves in internal combustion engines |
US1893209A (en) * | 1932-05-11 | 1933-01-03 | Ingersoll Rand Co | Valve cage |
US3589346A (en) * | 1969-05-06 | 1971-06-29 | Robert C Warren | Overhead valve action and air pollutant device |
US3742927A (en) * | 1970-05-27 | 1973-07-03 | Semt | Valve for an internal combustion engine or the like |
US3799139A (en) * | 1970-09-23 | 1974-03-26 | Semt | Method and device for protecting the stem of an exhaust valve of an internal combustion engine or the like against corrosion |
US4008695A (en) * | 1974-01-29 | 1977-02-22 | Societe D'etudes De Machines Thermiques | Cooled integral valve chest for an internal combustion engine and method for making same |
US4000730A (en) * | 1974-03-07 | 1977-01-04 | Maschinenfabrik Augsburg-Nurnberg Ag | Valve cage structure for internal combustion engines, particularly adapted for fluid cooling |
US4006592A (en) * | 1975-11-17 | 1977-02-08 | Warren Glenn B | Valve arrangements for reciprocating piston machines |
US4147149A (en) * | 1976-05-24 | 1979-04-03 | Sulzer Brothers Limited | Exhaust valve for a reciprocating internal combustion engine |
US4200066A (en) * | 1977-01-28 | 1980-04-29 | Sulzer Brothers Limited | Internal combustion piston engine |
US4182282A (en) * | 1977-08-05 | 1980-01-08 | Societe D'etudes De Machines Thermiques S.E.M.T. | Mushroom valve housing with fluid coolant circulation for internal combustion engines |
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