US3893483A - Rotary valve train - Google Patents
Rotary valve train Download PDFInfo
- Publication number
- US3893483A US3893483A US43090474A US3893483A US 3893483 A US3893483 A US 3893483A US 43090474 A US43090474 A US 43090474A US 3893483 A US3893483 A US 3893483A
- Authority
- US
- United States
- Prior art keywords
- disc
- recess
- shaft
- disposed
- bore
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- 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
- F01L7/00—Rotary or oscillatory slide valve-gear or valve arrangements
- F01L7/06—Rotary or oscillatory slide valve-gear or valve arrangements with disc type valves
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/86493—Multi-way valve unit
- Y10T137/86574—Supply and exhaust
- Y10T137/86638—Rotary valve
Definitions
- ABSTRACT A rotary valve train employing an elongated block with an axial bore and a shaft disposed in the bore and rotatable about its axis.
- the block contains a plurality of longitudinally spaced recesses centered on the bore and extending at right angles. Each recess has a first half defining a semicircle and a second half defining a rectangle.
- a separate circular disc centered on, secured to and rotatable with the shaft is disposed in each recess.
- Each disc has a quadrant removed.
- Each recess is ported.
- Each second half recess has a centrally disposed arm extending radially toward the shaft and disposed in sealing engagement with the outer periphery of the body of the disc.
- the rotary valve train employs an elongated block with an axial bore and a shaft disposed in the bore and rotatable about its axis.
- the block contains a plurality of longitudinally spaced recesses centered on the bore and extending at right angles thereto.
- Each recess, which is ported, has a first half section defining a semicircle and a second half section defining a rectangle.
- a separate circular disc having a quadrant removed is centered on, secured to and rotatable with the shaft and is rotatably disposed in the corresponding recess.
- Each combination of recess and disc constitutes a valve.
- the timing is controlled by carefully spacing the missing quadrants of the discs relative to each other.
- the shaft is driven by a chain off the crank shaft as is a cam shaft in a conventional engine.
- the rotary valve train thus substitutes a smooth circular motion which is highly efficient for the lower efficiency conventional up and down motion and contains many fewer parts.
- FIG. 1 is a perspective view of shaft with discs as used in the invention
- FIG. 2 is a perspective view of a portion of the valve block as used in the invention.
- FIG. 3 is an exploded view in cross section of the parts used in the invention.
- FIG. 4 is a top view of the composite valve train.
- mating rectangular blocks and 12 define an elongated block with a centrally disposed axial bore 14.
- a shaft 16 rotated about its axis by a chain off the crank shaft of the engine employing the invention is disposed in the bore.
- a plurality of recesses which are longitudinally spaced are disposed in the block, centered on the shaft and extend at right angles to the shaft.
- Each recess has a first half section 18 defining a semicircle and a second half section 20 defining a rectangle.
- the center of the section has a stub or arm 22 extending radially inward at right angles toward the shaft.
- the shaft carries a plurality of longitudinally spaced circular discs 24 centered on the shaft, secured thereto and rotatable therewith. Each disc has a quadrant 26 cut away. A separate disc is disposed in each recess and the circular peripheral surface engages the arm 22. Each section 20 has a port 28.
- Each combination of recess and disc constitutes a separate valve 32.
- Two valves, an intake valve and an exhaust valve are disposed in corresponding cylinder housings 34, each containing cylinder 36.
- the valves are operated by shaft 16 as described.
- the timing is adjusted by varying the position of the quadrants 26.
- the relative positions of the quadrants of a pair of valves, one intake, the other exhaust, are adjusted for a separation.
- the two blocks are placed together, surrounding the shaft and the discs thereon. The two blocks are disposed directly above the cylinder, forming a cylinder head.
- a rotary valve train comprising:
- an elongated block having an axial bore and a plurality of longitudinally spaced recesses centered on the bore and extending outward at right angles, each recess being ported and having first and second halves, the first half being semi-circular, the second half being rectangular;
- each disc centered on and secured to the shaft and rotated therewith, the discs being longitudinally spaced, each disc being disposed in a corresponding recess and rotatable therein, each disc having a cut out portion defining a circular sector.
- each cut-out portion defines a quadrant.
- each second half has an arm extending centrally and radially inward, the outer circular periphery of the corresponding disc being in sealing engagement with the arm.
Abstract
A rotary valve train employing an elongated block with an axial bore and a shaft disposed in the bore and rotatable about its axis. The block contains a plurality of longitudinally spaced recesses centered on the bore and extending at right angles. Each recess has a first half defining a semicircle and a second half defining a rectangle. A separate circular disc centered on, secured to and rotatable with the shaft is disposed in each recess. Each disc has a quadrant removed. Each recess is ported. Each second half recess has a centrally disposed arm extending radially toward the shaft and disposed in sealing engagement with the outer periphery of the body of the disc.
Description
United States Patent 1191 Ackerm an 1111 3,893,483 [451 July 8,1975
[ ROTARY VALVE TRAIN [76] Inventor: Timothy Ackerman, Main St.,
Centerbrook, Conn. 06409 [22] Filed: Jan. 4, 1974 [2]] Appl. No.: 430,904
[52] U.S. C1 137/625.21; 123/190 A; 123/190 E [51] Int. Cl. F011 7/00 [58] Field of Search 123/190 R, 190 A, 190 D,
Primary Examiner-Charles J. Myhre Assistant Examiner- Daniel .1. O'Connor [57] ABSTRACT A rotary valve train employing an elongated block with an axial bore and a shaft disposed in the bore and rotatable about its axis. The block contains a plurality of longitudinally spaced recesses centered on the bore and extending at right angles. Each recess has a first half defining a semicircle and a second half defining a rectangle. A separate circular disc centered on, secured to and rotatable with the shaft is disposed in each recess. Each disc has a quadrant removed. Each recess is ported. Each second half recess has a centrally disposed arm extending radially toward the shaft and disposed in sealing engagement with the outer periphery of the body of the disc.
4 Claims, 4 Drawing Figures ROTARY VALVE TRAIN SUMMARY OF THE INVENTION This invention is directed toward a rotary valve train which can be substituted for a conventional overhead valve train in an internal combustion engine.
The rotary valve train employs an elongated block with an axial bore and a shaft disposed in the bore and rotatable about its axis. The block contains a plurality of longitudinally spaced recesses centered on the bore and extending at right angles thereto. Each recess, which is ported, has a first half section defining a semicircle and a second half section defining a rectangle. A separate circular disc having a quadrant removed is centered on, secured to and rotatable with the shaft and is rotatably disposed in the corresponding recess.
Each combination of recess and disc constitutes a valve. The timing is controlled by carefully spacing the missing quadrants of the discs relative to each other. The shaft is driven by a chain off the crank shaft as is a cam shaft in a conventional engine.
The rotary valve train thus substitutes a smooth circular motion which is highly efficient for the lower efficiency conventional up and down motion and contains many fewer parts.
BRIEF DESCRIPTION OF THE DRAWINGS In the drawings:
FIG. 1 is a perspective view of shaft with discs as used in the invention;
FIG. 2 is a perspective view of a portion of the valve block as used in the invention;
FIG. 3 is an exploded view in cross section of the parts used in the invention; and
FIG. 4 is a top view of the composite valve train.
DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS Referring now to FIGS. 1-4, mating rectangular blocks and 12 define an elongated block with a centrally disposed axial bore 14. A shaft 16 rotated about its axis by a chain off the crank shaft of the engine employing the invention is disposed in the bore.
A plurality of recesses which are longitudinally spaced are disposed in the block, centered on the shaft and extend at right angles to the shaft. Each recess has a first half section 18 defining a semicircle and a second half section 20 defining a rectangle. The center of the section has a stub or arm 22 extending radially inward at right angles toward the shaft.
The shaft carries a plurality of longitudinally spaced circular discs 24 centered on the shaft, secured thereto and rotatable therewith. Each disc has a quadrant 26 cut away. A separate disc is disposed in each recess and the circular peripheral surface engages the arm 22. Each section 20 has a port 28.
Each combination of recess and disc constitutes a separate valve 32. Two valves, an intake valve and an exhaust valve are disposed in corresponding cylinder housings 34, each containing cylinder 36. The valves are operated by shaft 16 as described. The timing is adjusted by varying the position of the quadrants 26. As shown in FIG. 1, the relative positions of the quadrants of a pair of valves, one intake, the other exhaust, are adjusted for a separation. As is shown in FIG. 3, the two blocks are placed together, surrounding the shaft and the discs thereon. The two blocks are disposed directly above the cylinder, forming a cylinder head. Considering the disc shown in the drawing as an intake valve, air-fuel mixture is sucked into port 28 into the rectangular half section only so long as one of the faces of the cutaway quadrant is between the arm 22 on the rectangular half section and a downwardly directed vertical line. The corresponding exhaust valve operates in a similar manner.
While I have described my invention with particular reference to the drawings, such is not to be considered as limiting its actual scope.
Having thus described this invention, what is asserted as new is:
l. A rotary valve train comprising:
an elongated block having an axial bore and a plurality of longitudinally spaced recesses centered on the bore and extending outward at right angles, each recess being ported and having first and second halves, the first half being semi-circular, the second half being rectangular;
an elongated shaft rotatable about its axis disposed in the bore; and
a like plurality of circular discs, each centered on and secured to the shaft and rotated therewith, the discs being longitudinally spaced, each disc being disposed in a corresponding recess and rotatable therein, each disc having a cut out portion defining a circular sector.
2. The train of claim 1 wherein the disc cut-out portions are angularly separated one from another.
3. The train of claim 2 wherein each cut-out portion defines a quadrant.
4. The train of claim 3 wherein each second half has an arm extending centrally and radially inward, the outer circular periphery of the corresponding disc being in sealing engagement with the arm.
Claims (4)
1. A rotary valve train comprising: an elongated block having an axial bore and a plurality of longitudinally spaced recesses centered on the bore and extending outward at right angles, each recess being ported and having first and second halves, the first half being semicircular, the second half being rectangular; an elongated shaft rotatable about its axis disposed in the bore; and a like plurality of circular discs, each centered on and secured to the shaft and rotated therewith, the discs being longitudinally spaced, each disc being disposed in a corresponding recess and rotatable therein, each disc having a cut out portion defining a circular sector.
2. The train of claim 1 wherein the disc cut-out portions are angularly separated one from another.
3. The train of claim 2 wherein each cut-out portion defines a quadrant.
4. The train of claim 3 wherein each second half has an arm extending centrally and radially inward, the outer circular periphery of the corresponding disc being in sealing engagement with the arm.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US43090474 US3893483A (en) | 1974-01-04 | 1974-01-04 | Rotary valve train |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US43090474 US3893483A (en) | 1974-01-04 | 1974-01-04 | Rotary valve train |
Publications (1)
Publication Number | Publication Date |
---|---|
US3893483A true US3893483A (en) | 1975-07-08 |
Family
ID=23709569
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US43090474 Expired - Lifetime US3893483A (en) | 1974-01-04 | 1974-01-04 | Rotary valve train |
Country Status (1)
Country | Link |
---|---|
US (1) | US3893483A (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4041837A (en) * | 1976-03-05 | 1977-08-16 | Franz Weidlich | Induction and exhaust apparatus for piston machines |
US4077382A (en) * | 1975-10-06 | 1978-03-07 | Gentile Carl A | Rotary valve for internal combustion engines |
US4867117A (en) * | 1987-12-22 | 1989-09-19 | Scalise Michael A | Rotary valve with integrated combustion chamber |
US4989576A (en) * | 1981-07-30 | 1991-02-05 | Coates George J | Internal combustion engine |
US5095870A (en) * | 1991-06-17 | 1992-03-17 | Place George C | Rotary valve four-cycle engine |
US20040099236A1 (en) * | 2002-07-25 | 2004-05-27 | Lee Jung W. | Spherical rotary engine valve assembly |
US7089893B1 (en) | 2004-07-13 | 2006-08-15 | David Ostling | Combustion engine valve system |
US20140196600A1 (en) * | 2013-01-11 | 2014-07-17 | National Tsing Hua University | Air engine with rotatable intake-exhaust mechanism |
DE102015223677A1 (en) * | 2015-11-30 | 2017-06-01 | Karin Weikert | Cylinder head for an internal combustion engine |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1273433A (en) * | 1917-06-20 | 1918-07-23 | Rudolph Wehr | Internal-combustion engine. |
US1486175A (en) * | 1920-03-03 | 1924-03-11 | Sliding Valves Inc | Valve construction |
US1486954A (en) * | 1920-08-09 | 1924-03-18 | Charles Moore | Rotary valve for internal-combustion engines |
US1515052A (en) * | 1923-06-29 | 1924-11-11 | Johnson Richard Warren | Rotary valve mechanism for engines |
US1578111A (en) * | 1924-12-13 | 1926-03-23 | Edward P Wright | Internal-combustion engine |
US1787649A (en) * | 1929-09-04 | 1931-01-06 | Wehr Motor Company | Internal-combustion engine |
US3547094A (en) * | 1968-12-27 | 1970-12-15 | Ginji Yasuda | Rotary valve engine |
-
1974
- 1974-01-04 US US43090474 patent/US3893483A/en not_active Expired - Lifetime
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1273433A (en) * | 1917-06-20 | 1918-07-23 | Rudolph Wehr | Internal-combustion engine. |
US1486175A (en) * | 1920-03-03 | 1924-03-11 | Sliding Valves Inc | Valve construction |
US1486954A (en) * | 1920-08-09 | 1924-03-18 | Charles Moore | Rotary valve for internal-combustion engines |
US1515052A (en) * | 1923-06-29 | 1924-11-11 | Johnson Richard Warren | Rotary valve mechanism for engines |
US1578111A (en) * | 1924-12-13 | 1926-03-23 | Edward P Wright | Internal-combustion engine |
US1787649A (en) * | 1929-09-04 | 1931-01-06 | Wehr Motor Company | Internal-combustion engine |
US3547094A (en) * | 1968-12-27 | 1970-12-15 | Ginji Yasuda | Rotary valve engine |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4077382A (en) * | 1975-10-06 | 1978-03-07 | Gentile Carl A | Rotary valve for internal combustion engines |
US4041837A (en) * | 1976-03-05 | 1977-08-16 | Franz Weidlich | Induction and exhaust apparatus for piston machines |
US4989576A (en) * | 1981-07-30 | 1991-02-05 | Coates George J | Internal combustion engine |
US4867117A (en) * | 1987-12-22 | 1989-09-19 | Scalise Michael A | Rotary valve with integrated combustion chamber |
US5095870A (en) * | 1991-06-17 | 1992-03-17 | Place George C | Rotary valve four-cycle engine |
US20040099236A1 (en) * | 2002-07-25 | 2004-05-27 | Lee Jung W. | Spherical rotary engine valve assembly |
US7121247B2 (en) * | 2002-07-25 | 2006-10-17 | Lee Jung W | Spherical rotary engine valve assembly |
US7089893B1 (en) | 2004-07-13 | 2006-08-15 | David Ostling | Combustion engine valve system |
US20140196600A1 (en) * | 2013-01-11 | 2014-07-17 | National Tsing Hua University | Air engine with rotatable intake-exhaust mechanism |
DE102015223677A1 (en) * | 2015-11-30 | 2017-06-01 | Karin Weikert | Cylinder head for an internal combustion engine |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3893483A (en) | Rotary valve train | |
ATE44074T1 (en) | VALVE CONTROL FOR AN INTERNAL ENGINE. | |
DK252989A (en) | COMBUSTION ENGINE WITH INTERNAL ROTATING VALVE | |
DE3765737D1 (en) | INTERNAL COMBUSTION ENGINE WITH AT LEAST TWO INLET VALVES PER CYLINDER. | |
US4256067A (en) | Oblong piston rings for internal combustion engine | |
US2787988A (en) | Device for controlling the opening and closing of the cylinders of combustion engines | |
DE3361124D1 (en) | Cylinder head for a four-stroke internal-combustion engine | |
US3884198A (en) | Cam shafts for four cycle reversible internal combustion engines | |
US2648318A (en) | Rotary valve controlled multicylinder internal-combustion engine | |
ES2018434A6 (en) | Rotary internal combustion engine. | |
JPS57173514A (en) | Intake and exhaust device of reciprocating engine | |
JPS59105007U (en) | Conical rotary valve with ball bearing that can adjust sealing performance | |
JPS60233305A (en) | Rotary valve type prime mover using cam | |
GB193598A (en) | A rotary disc valve for four stroke internal combustion engines | |
KR940018550A (en) | Pentagonal rotary engine | |
GB525983A (en) | Improvements in or relating to engines having radially or tangentially arranged cylinders | |
JPS58138218A (en) | Valve device of engine | |
DE69516283T2 (en) | INTERNAL COMBUSTION ENGINE WITH RADIAL SPHERICAL PISTON | |
JPS57206711A (en) | Intake and exhaust valve device for internal combustion engine | |
JPS5937213A (en) | Valve gear of engine | |
JPS60162202U (en) | 4-stroke engine valve actuator | |
ES221747U (en) | Cam for admission and exhaust valves in the explosion and internal combustión engines. (Machine-translation by Google Translate, not legally binding) | |
JPS6275508U (en) | ||
GB922047A (en) | Improvements in or relating to two-stroke internal combustion engines | |
JPS5514913A (en) | Four-stroke engine with rotary valve unit |