US20170096917A1 - Tophead rotary valve (for internal combustion engines) - Google Patents

Tophead rotary valve (for internal combustion engines) Download PDF

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Publication number
US20170096917A1
US20170096917A1 US14/756,714 US201514756714A US2017096917A1 US 20170096917 A1 US20170096917 A1 US 20170096917A1 US 201514756714 A US201514756714 A US 201514756714A US 2017096917 A1 US2017096917 A1 US 2017096917A1
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United States
Prior art keywords
valve
tophead
rotary valve
internal combustion
valves
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Abandoned
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US14/756,714
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Wayne Estell Snyder
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Individual
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Individual
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Priority to US14/756,714 priority Critical patent/US20170096917A1/en
Publication of US20170096917A1 publication Critical patent/US20170096917A1/en
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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
    • F01L7/00—Rotary or oscillatory slide valve-gear or valve arrangements
    • F01L7/08—Rotary or oscillatory slide valve-gear or valve arrangements with conically or frusto-conically shaped valves
    • 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
    • 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
    • F01L7/16—Sealing or packing arrangements specially therefor
    • 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
    • F01L2250/00—Camshaft drives characterised by their transmission means
    • F01L2250/06—Camshaft drives characterised by their transmission means the camshaft being driven by gear wheels
    • 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
    • F01L2810/00—Arrangements solving specific problems in relation with valve gears
    • F01L2810/02—Lubrication

Definitions

  • Tophead Rotary Valve is a new type of rotary valve for use in internal combustion engines. It will replace the common popet valves now in use, saving energy by eliminating the reciprical motion used in popet valves, along with the compression of the heavy valve springs used with popet valves. It can be used in both 4 stroke engines and 2 stroke engines. It is comprised of a thin flat, or funnel, or hemispherical shaped disk, made of an appropriate heat resistant metal, with one or more holes cut out of the disk. The hole is use to allow the passage of intake and exhaust gasses. The valve covers the entire top end of the piston cylinder, which allows the port holes to be as large as possible.
  • the valve rotates in unison with the crankshaft, rotating the hole over the intake and exhaust ports in the head of the engine at the appropriate time.
  • the valve utilizes upward pressure of the combusting gasses to help seal in those gases. It is lubricated between itself and the engine head. The most practical way to rotate the valve is by a stem in the middle of the valve going up through the head of the engine and geared to the crankshaft. There are many ways to gear the valve to the crankshaft. There are many ways to supply the lubrication. There are many ways to add additional seals or groves to the surface of the valve or head to retain oil, and other seals to help retain combustion pressure.
  • Page one shows 6 views of Tophead Rotary Valves.
  • Page two shows a cutaway view of a one-cylinder engine incorporating a Tophead Rotary Valve.
  • Page two also includes the top and bottom views of the head from the engine shown.
  • FIG. 1 is a side view of a simple Tophead Rotary Valve.
  • FIG. 2 shows a prospective view of the same valve. Shown is the stem and the pie shaped cutout hole in the disk used for exhaust and intake in a four stroke engine.
  • FIG. 3 is a top view of another configuration of Tophead valve, showing a continuous outer circumference of the disk, with the cutout hole not going all the way out.
  • FIG. 4 is a perspective view of the same valve shown in FIG. 3 .
  • FIG. 5 is a side view of a Tophead Rotary Valve showing character 1 , which is a slot in the outside edge of the disk, used to hold a simple piston ring to help seal in lubricating oil, and could also aid in sealing combustion pressure. Character 2 of FIG.
  • FIG. 5 is a slot in the stem to hold a key stop which holds the drive gear in place.
  • Character 3 of FIG. 5 is a hole going through the stem which takes a simple cotter pin for holding the gear and valve in place.
  • FIG. 6 shows a funnel shaped Tophead Rotary Valve, exemplifying other possible shapes. A funnel shape will allow bigger exhaust and intake ports, although not by much.
  • FIG. 7 shows a simplistic cutaway view of a one cylinder 4 stroke engine. Showing how the Tophead Rotary Valve (character 4 ) covers the entire top end of the piston cylinder, and can even extend past the circumference of the cylinder. FIG. 7 also shows how a valve can be geared to its stem. The gearing which connects shaft (number 5 ) with the crankshaft (number 9 ) are not shown. Character numbers 6 and 7 depict the intake and exhaust ports respectfully. Character 8 is the piston. Character 10 is one of the gears driving the rotating valve. Character 12 shows one of the simple cotter pins (just above a washer) holding the valve and gears in place. FIG.
  • FIG. 8 depicts the top view of the head of the engine, showing a better view of the gears and the washers, which are directly under the cotter pins.
  • FIG. 9 shows the bottom view of the head.
  • Characters 6 and 7 are again the intake and exhaust ports which the valve rotates over.
  • Character 11 is, of course, the spark plug, which is recessed above the valve. When it is time for the spark, the hole in the rotating valve will be in line over the spark plug, allowing combustion.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)

Abstract

Tophead Rotary Valve is used in internal combustion engines. Each valve would replace the two or more reciprocating popet valves currently use in each cylinder, thereby saving energy now wasted by reciprocating parts and the compression of the heavy springs used with popet valves. The rotating valve is a self-sealing valve which incorporates the combustion pressure itself to seal in that pressure. Prior designs of rotating valves had inherent problems with the expansion and contraction of metal caused by the heating and cooling of the valve and is housing, which then caused leakage of combustion pressure past the minute clearances necessary to maintain both lubrication and combustion gasses. The Tophead Rotary Valve can expand and contract vertically and horizontally while maintaining the same contact clearances with the cylinder head, thus overcoming that inherent problem. The engine itself will run much quieter and should be capable of higher RPMs. One Rotary valve per cylinder should also reduce the total number of parts needed. The Tophead Rotary Valve should increase engine efficiency by close to 10%, increasing gas mileage by the same percentage.

Description

  • NO PRIOR application of such a rotary valve in conjunction with an internal combustion engine is known.
    • BRIEF SUMMARY OF INVENTION
  • Tophead Rotary Valve is a new type of rotary valve for use in internal combustion engines. It will replace the common popet valves now in use, saving energy by eliminating the reciprical motion used in popet valves, along with the compression of the heavy valve springs used with popet valves. It can be used in both 4 stroke engines and 2 stroke engines. It is comprised of a thin flat, or funnel, or hemispherical shaped disk, made of an appropriate heat resistant metal, with one or more holes cut out of the disk. The hole is use to allow the passage of intake and exhaust gasses. The valve covers the entire top end of the piston cylinder, which allows the port holes to be as large as possible. The valve rotates in unison with the crankshaft, rotating the hole over the intake and exhaust ports in the head of the engine at the appropriate time. The valve utilizes upward pressure of the combusting gasses to help seal in those gases. It is lubricated between itself and the engine head. The most practical way to rotate the valve is by a stem in the middle of the valve going up through the head of the engine and geared to the crankshaft. There are many ways to gear the valve to the crankshaft. There are many ways to supply the lubrication. There are many ways to add additional seals or groves to the surface of the valve or head to retain oil, and other seals to help retain combustion pressure.
    • BRIEF DESCRIPTION OF DRAWINGS
  • Page one shows 6 views of Tophead Rotary Valves. Page two shows a cutaway view of a one-cylinder engine incorporating a Tophead Rotary Valve. Page two also includes the top and bottom views of the head from the engine shown.
    •  DETAILED DESCRIPTION OF DRAWINGS Drawing, Page 1:
  • FIG. 1 is a side view of a simple Tophead Rotary Valve. FIG. 2 shows a prospective view of the same valve. Shown is the stem and the pie shaped cutout hole in the disk used for exhaust and intake in a four stroke engine. FIG. 3 is a top view of another configuration of Tophead valve, showing a continuous outer circumference of the disk, with the cutout hole not going all the way out. FIG. 4 is a perspective view of the same valve shown in FIG. 3. FIG. 5 is a side view of a Tophead Rotary Valve showing character 1, which is a slot in the outside edge of the disk, used to hold a simple piston ring to help seal in lubricating oil, and could also aid in sealing combustion pressure. Character 2 of FIG. 5 is a slot in the stem to hold a key stop which holds the drive gear in place. Character 3 of FIG. 5 is a hole going through the stem which takes a simple cotter pin for holding the gear and valve in place. FIG. 6 shows a funnel shaped Tophead Rotary Valve, exemplifying other possible shapes. A funnel shape will allow bigger exhaust and intake ports, although not by much.
    • Drawing, Page 2:
  • FIG. 7 shows a simplistic cutaway view of a one cylinder 4 stroke engine. Showing how the Tophead Rotary Valve (character 4) covers the entire top end of the piston cylinder, and can even extend past the circumference of the cylinder. FIG. 7 also shows how a valve can be geared to its stem. The gearing which connects shaft (number 5) with the crankshaft (number 9) are not shown. Character numbers 6 and 7 depict the intake and exhaust ports respectfully. Character 8 is the piston. Character 10 is one of the gears driving the rotating valve. Character 12 shows one of the simple cotter pins (just above a washer) holding the valve and gears in place. FIG. 8 depicts the top view of the head of the engine, showing a better view of the gears and the washers, which are directly under the cotter pins. FIG. 9 shows the bottom view of the head. Characters 6 and 7 are again the intake and exhaust ports which the valve rotates over. Character 11 is, of course, the spark plug, which is recessed above the valve. When it is time for the spark, the hole in the rotating valve will be in line over the spark plug, allowing combustion.

Claims (2)

1. I claim my invention is a rotary disk valve used in conjunction with an internal combustion engine, and is unique in that only one valve will cover the entire top area of the piston cylinder, with one or more triangular cut-out holes which rotate over similar shaped exhaust and intake ports in the head. The valve will rotate at the appropriate speed with the crankshaft, being geared directly to it through a system of gears and drive shafts.
2. I claim also as my invention any internal combustion piston engine which utilizes my Tophead Rotary Valve to cover the entire top end of the piston cylinder. Meaning any Tophead Rotary Valve engine.
US14/756,714 2015-10-05 2015-10-05 Tophead rotary valve (for internal combustion engines) Abandoned US20170096917A1 (en)

Priority Applications (1)

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US14/756,714 US20170096917A1 (en) 2015-10-05 2015-10-05 Tophead rotary valve (for internal combustion engines)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108843401A (en) * 2018-06-13 2018-11-20 中国科学院理化技术研究所 A kind of reciprocating expansion engine structure

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1068632A (en) * 1912-06-19 1913-07-29 Andrew C Dam Valve device for internal-combustion engines.
US1084410A (en) * 1912-02-21 1914-01-13 Raleigh Eugene Drennon Gas-engine valve.
US1114511A (en) * 1912-01-25 1914-10-20 Carley H Paulsen Explosive-engine.
US1245482A (en) * 1917-09-25 1917-11-06 Edward P Mantell Internal-combustion engine.
US1304839A (en) * 1919-05-27 Rotary valve fob internal-combustion engines
US1726299A (en) * 1929-08-27 Internal-combustion engine
US1826461A (en) * 1928-05-21 1931-10-06 Richard S Davis Rotary engine valve
US2231547A (en) * 1939-11-06 1941-02-11 Arthur H O Brien Internal combustion engine
US5988133A (en) * 1998-02-24 1999-11-23 Agapiades; Thomas Engine disc valve
US6029617A (en) * 1998-05-12 2000-02-29 Lambert; Steven Modular rotary discoid valve assembly for engines and other applications
US8100103B2 (en) * 2007-09-07 2012-01-24 Renato Bastos Ribeiro Reciprocating piston cylinder head cover having an integrated fluid exchange rotary disc valve
US8671899B2 (en) * 2012-01-18 2014-03-18 Khalid Al-Khulaifi Rotary valve system

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1304839A (en) * 1919-05-27 Rotary valve fob internal-combustion engines
US1726299A (en) * 1929-08-27 Internal-combustion engine
US1114511A (en) * 1912-01-25 1914-10-20 Carley H Paulsen Explosive-engine.
US1084410A (en) * 1912-02-21 1914-01-13 Raleigh Eugene Drennon Gas-engine valve.
US1068632A (en) * 1912-06-19 1913-07-29 Andrew C Dam Valve device for internal-combustion engines.
US1245482A (en) * 1917-09-25 1917-11-06 Edward P Mantell Internal-combustion engine.
US1826461A (en) * 1928-05-21 1931-10-06 Richard S Davis Rotary engine valve
US2231547A (en) * 1939-11-06 1941-02-11 Arthur H O Brien Internal combustion engine
US5988133A (en) * 1998-02-24 1999-11-23 Agapiades; Thomas Engine disc valve
US6029617A (en) * 1998-05-12 2000-02-29 Lambert; Steven Modular rotary discoid valve assembly for engines and other applications
US8100103B2 (en) * 2007-09-07 2012-01-24 Renato Bastos Ribeiro Reciprocating piston cylinder head cover having an integrated fluid exchange rotary disc valve
US8671899B2 (en) * 2012-01-18 2014-03-18 Khalid Al-Khulaifi Rotary valve system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108843401A (en) * 2018-06-13 2018-11-20 中国科学院理化技术研究所 A kind of reciprocating expansion engine structure

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