WO2003021095A1 - Twin piston engine - Google Patents

Twin piston engine Download PDF

Info

Publication number
WO2003021095A1
WO2003021095A1 PCT/IB2001/001611 IB0101611W WO03021095A1 WO 2003021095 A1 WO2003021095 A1 WO 2003021095A1 IB 0101611 W IB0101611 W IB 0101611W WO 03021095 A1 WO03021095 A1 WO 03021095A1
Authority
WO
WIPO (PCT)
Prior art keywords
piston
twin
engine
crankshaft
pistons
Prior art date
Application number
PCT/IB2001/001611
Other languages
French (fr)
Inventor
Arben Vrapi
Original Assignee
Arben Vrapi
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Arben Vrapi filed Critical Arben Vrapi
Priority to PCT/IB2001/001611 priority Critical patent/WO2003021095A1/en
Publication of WO2003021095A1 publication Critical patent/WO2003021095A1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/28—Engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders
    • F02B75/282—Engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders the pistons having equal strokes

Definitions

  • the invention relates to internal combustion engines and more particularly it presents a twin piston engine with two opposite pistons in the same cylinder.
  • a cylinder 10 opened at both ends.
  • the pistons 21 and 22 move in opposite directions between a first position where they are spaced apart and a second position where they are proximate to each other.
  • the connecting rod 31 of the bottom piston 21 is in line; the connecting rods 32 of the top piston 22 are set off to the side and the three of them are connected to their respective places in the crankshaft 40.
  • the two connecting rods 32 of the top piston are permanently connected with each other through the connecting branch 33 and this branch is pivotally attached to the piston through the modified rod 34.
  • the modified rod 34 is connected to the piston through the pin 35, which is 90 degree rotated in respect to the bottom pin 36. This is done in order to force the modified rod 34 to move only in vertical direction by embodying it with the top piston.
  • Fig 1 is a schematic perspective view of the mechanism presented by this invention.
  • Fig 2 shows how this mechanism can be implemented in a two-stroke engine.
  • Fig 3 shows how this mechanism can be implemented in a four-stroke engine.
  • Fig 4 is an upper view of the engine where are used two twin-piston cylinders.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Abstract

This invention presents a twin piston engine comprising a cylinder opened at both ends and two pistons that move in opposite directions. The bottom piston is connected to a three-throw crankshaft through an inline rod.The top piston is connected through a modified rod to the connecting branch of the two side rods and through these rods to the crankshaft.

Description

TITLE OF INVENTION
TWIN PISTON ENGINE
Technical Field The invention relates to internal combustion engines and more particularly it presents a twin piston engine with two opposite pistons in the same cylinder.
Background of invention
Many changes are made to the engine since it was created. There have been created many types with different abilities. This invention relates to twin piston engines. In prior art we see for example in the patent GB 208,670 published in March 1923 a twin piston engine where one's piston rod passes through the other piston creating extra friction among the moving parts. There are also some other patents related to twin piston engines such as WO 99/878 or US 6,182,619 Bl published respectively in April 1999 and February 2001. These patents describe twin piston engines but the rods of different pistons pass their rotating movement to two crankshaft. In respect to these or other earlier patents this invention presents a twin piston engine where are eliminated the extra friction forces present in the 1923' s patent and passes the rotating movement of both piston rods on one crankshaft.
Disclosure of invention
This invention presents a new design for the twin piston engines with internal combustion. The invention generally comprises a cylinder opened at ends, two pistons, three piston rods with their connecting rods and a three-throw crankshaft. The pistons move in opposite directions between a first position where they are spaced apart and a second position where they are proximate to each other. This engine comprises:
1. A cylinder 10 opened at both ends.
2. Two opposite moving pistons 21 and 22.
3. Three piston rods with their connecting rods. 4. A three-throw crankshaft 40
The pistons 21 and 22 move in opposite directions between a first position where they are spaced apart and a second position where they are proximate to each other. The connecting rod 31 of the bottom piston 21 is in line; the connecting rods 32 of the top piston 22 are set off to the side and the three of them are connected to their respective places in the crankshaft 40. The two connecting rods 32 of the top piston are permanently connected with each other through the connecting branch 33 and this branch is pivotally attached to the piston through the modified rod 34. The modified rod 34 is connected to the piston through the pin 35, which is 90 degree rotated in respect to the bottom pin 36. This is done in order to force the modified rod 34 to move only in vertical direction by embodying it with the top piston.
In fig 3 are shown among the others the inlet 51 and exhaust outlet 52 with their respective valves. In fig 4 is shown also the sparking plug 60.
Brief description of the drawings
Fig 1 is a schematic perspective view of the mechanism presented by this invention.
Fig 2 shows how this mechanism can be implemented in a two-stroke engine. Fig 3 shows how this mechanism can be implemented in a four-stroke engine. Fig 4 is an upper view of the engine where are used two twin-piston cylinders.

Claims

ClaimsWhat I claim is:
1. A twin piston engine comprising a cylinder and two pistons, which move in opposite directions.
2. Two long rods that connect the top piston with the crankshaft.
3. The two long rods as in claim 2 where the two of them are fixed with the connecting branch.
4. The connecting branch that is pivotally attached in its mid point to the modified rod that connects the connecting branch to the piston's pin.
5. The top piston's pin is 90 degree rotated in respect to the bottom piston's pin.
PCT/IB2001/001611 2001-09-04 2001-09-04 Twin piston engine WO2003021095A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/IB2001/001611 WO2003021095A1 (en) 2001-09-04 2001-09-04 Twin piston engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB2001/001611 WO2003021095A1 (en) 2001-09-04 2001-09-04 Twin piston engine

Publications (1)

Publication Number Publication Date
WO2003021095A1 true WO2003021095A1 (en) 2003-03-13

Family

ID=11004164

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2001/001611 WO2003021095A1 (en) 2001-09-04 2001-09-04 Twin piston engine

Country Status (1)

Country Link
WO (1) WO2003021095A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2491155A (en) * 2011-05-24 2012-11-28 Cox Powertrain Ltd Opposed piston combustion engine having fuel injector disposed at least partly within an engine cylinder
CN102797562A (en) * 2011-07-11 2012-11-28 摩尔动力(北京)技术股份有限公司 Air cylinder piston mechanism with multiple pistons sharing one axis
CN102979617A (en) * 2011-11-16 2013-03-20 摩尔动力(北京)技术股份有限公司 Double top opposed piston engine
CN109736947A (en) * 2019-03-18 2019-05-10 张家港川梭车业有限公司 A kind of Dual-piston IC engine
CN110374742A (en) * 2019-08-01 2019-10-25 安徽天沃重工机械有限公司 A kind of engineering machinery limiting body height and the multi-cylinder diesel engine for increasing stroke

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE112405C (en) * 1899-01-07
GB208670A (en) 1923-03-09 1923-12-27 Peter Hill Twin piston engine
DE602660C (en) * 1931-01-29 1934-09-13 William Doxford & Sons Ltd Machine with counter-rotating pistons acting on a crankshaft, in which the crosshead is connected to the upper piston by a pivot pin
US2120666A (en) * 1937-02-03 1938-06-14 Sun Shipbuilding & Dry Dock Co Internal-combustion engine
WO1999000878A1 (en) 1997-06-30 1999-01-07 Mikael Burvall Lamp socket
US6182619B1 (en) 1998-12-24 2001-02-06 General Atomics Aeronautical Systems, Inc. Two-stroke diesel engine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE112405C (en) * 1899-01-07
GB208670A (en) 1923-03-09 1923-12-27 Peter Hill Twin piston engine
DE602660C (en) * 1931-01-29 1934-09-13 William Doxford & Sons Ltd Machine with counter-rotating pistons acting on a crankshaft, in which the crosshead is connected to the upper piston by a pivot pin
US2120666A (en) * 1937-02-03 1938-06-14 Sun Shipbuilding & Dry Dock Co Internal-combustion engine
WO1999000878A1 (en) 1997-06-30 1999-01-07 Mikael Burvall Lamp socket
US6182619B1 (en) 1998-12-24 2001-02-06 General Atomics Aeronautical Systems, Inc. Two-stroke diesel engine

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2491155A (en) * 2011-05-24 2012-11-28 Cox Powertrain Ltd Opposed piston combustion engine having fuel injector disposed at least partly within an engine cylinder
GB2491155B (en) * 2011-05-24 2013-04-10 Cox Powertrain Ltd Opposed piston engine having injector located within cylinder
US9512777B2 (en) 2011-05-24 2016-12-06 Cox Powertrain Ltd. Internal combustion engines
CN102797562A (en) * 2011-07-11 2012-11-28 摩尔动力(北京)技术股份有限公司 Air cylinder piston mechanism with multiple pistons sharing one axis
CN102979617A (en) * 2011-11-16 2013-03-20 摩尔动力(北京)技术股份有限公司 Double top opposed piston engine
CN109736947A (en) * 2019-03-18 2019-05-10 张家港川梭车业有限公司 A kind of Dual-piston IC engine
CN110374742A (en) * 2019-08-01 2019-10-25 安徽天沃重工机械有限公司 A kind of engineering machinery limiting body height and the multi-cylinder diesel engine for increasing stroke

Similar Documents

Publication Publication Date Title
CA2303252A1 (en) Internal combustion engines
EP1160430A3 (en) Internal combustion engine with a supercharger and an improved piston crank mechanism
RU2000109322A (en) INTERNAL COMBUSTION ENGINES
EP1236877A3 (en) Piston actuation system of V-type engine with variable compression ratio mechanism
AU2782597A (en) Internal combustion engines
EP1980731A3 (en) Internal combustion engine with a single crankshaft and having opposed cylinders with opposed pistons
EP1247959A3 (en) Piston control mechanism of reciprocating internal combustion engine of variable compression ratio type
UA42078C2 (en) Multiple circular slider crank reciprocating piston internal combustion engine
US4787342A (en) V-6 engine
WO2003021095A1 (en) Twin piston engine
KR20050058479A (en) Internal combustion engines
JP2013510979A (en) Improvement of 2-stroke engine
US20070283922A1 (en) Internal combustion engine
JPH07269368A (en) Internal combustion engine
JP5234190B2 (en) Variable compression ratio V-type internal combustion engine
AU657699B2 (en) Modified cylinder head
JP2003083101A (en) Internal combustion engine
JPS5823945Y2 (en) multi-cylinder internal combustion engine
EP1207274A2 (en) Valve system for OHV-type four-cylinder internal combustion engine
JPS62131918A (en) Supercharged multi-cylinder internal combustion engine
RU95115755A (en) FOUR STROKE INTERNAL COMBUSTION ENGINE WITH AUXILIARY CYLINDERS
RU96112577A (en) GAS DISTRIBUTION DEVICE FOR A TWO-STROKE INTERNAL COMBUSTION ENGINE
RU2004122366A (en) INTERNAL COMBUSTION ENGINE
RU94010686A (en) FOUR-SPECIFIC STEREOMECHANICAL PISTON ENGINE
KR920020064A (en) Internal combustion engine of rotary valve

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AL AT AU BG BR BY CA CH CN CZ DK ES FI GB HR HU ID IL IN IS JP MX NZ PH PL PT RO RU SE SG SI SK TR US

Kind code of ref document: A1

Designated state(s): AL AT AU BG BR BY CA CH CN CZ DE DK ES FI GB HR HU ID IL IN IS JP MX NO NZ PH PL PT RO RU SE SG SI SK TR UA US ZA

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB IE IT LU MC NL PT SE TR

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR

121 Ep: the epo has been informed by wipo that ep was designated in this application
122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: JP