WO2014196936A1 - Swivelling-piston internal combustion engine - Google Patents

Swivelling-piston internal combustion engine Download PDF

Info

Publication number
WO2014196936A1
WO2014196936A1 PCT/SI2014/000033 SI2014000033W WO2014196936A1 WO 2014196936 A1 WO2014196936 A1 WO 2014196936A1 SI 2014000033 W SI2014000033 W SI 2014000033W WO 2014196936 A1 WO2014196936 A1 WO 2014196936A1
Authority
WO
WIPO (PCT)
Prior art keywords
piston
engine
swivelling
characterised
block
Prior art date
Application number
PCT/SI2014/000033
Other languages
French (fr)
Inventor
Niko HRŽENJAK
Original Assignee
Hrženjak Niko
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
Priority to SIP-201300143 priority Critical
Priority to SI201300143A priority patent/SI24403A/en
Application filed by Hrženjak Niko filed Critical Hrženjak Niko
Publication of WO2014196936A1 publication Critical patent/WO2014196936A1/en

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01CROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C9/00Oscillating-piston machines or engines
    • F01C9/002Oscillating-piston machines or engines the piston oscillating around a fixed axis
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01CROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C21/00Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/08Rotary pistons

Abstract

Internal combustion engine (1) with a swivelling piston, consisting of an engine block, a piston (5) fitted on one side to a bearing, swivelling around its axis (5c), a cogged shaft (6), a crank (8), a connecting rod (9) and a crankshaft (10), featuring a three-part engine block (2, 3, 4), where the piston (5), swivels inside the operating area (3a) of the central part of the block (3), functioning in four combustion chambers (11, 22, 33, 44) and using the crank (8) and connecting rod (9) to drive the crankshaft (10). The engine's piston (5) has a sharp angle (a) between 8° and 60°, it functions in four combustion chambers (11, 22, 33, 44), its central part featuring a cogged hub fitted onto the cogged shaft (6).

Description

Svvivelling-piston internal combustion engine

Field of the invention

The subject of the invention is an internal combustion engine with a swivelling piston, fitted on one side onto a bearing and oscillating in its housing, turns the engine's central shaft via the connecting rod and crankshaft.

Current state of the technology

Generally speaking, there are two types of internal combustion engines. The most common type uses a cylindrical piston that moves longitudinally, turning the main shaft via the connecting rod and crankshaft. The second type is a rotary engine where the piston (different shapes) rotates or rolls, thereby producing the rotation of the central shaft (e.g. the Wankl engine).

The problem with cylindrical piston engines is mainly their size, as well as the large number of parts and vibrations. The problem with rotary engines lies mainly in the sealing of the pistons and the vibrations.

Slovenian Patent No. 21856 (P-200400232; inventor: Hrzenjak N.) describes a swing- piston internal combustion engine that is smaller in size than the abovementioned types, is very compact and is assembled with fewer components, produces fewer vibrations, more torque and enables the use of many existing components.

The engine combines the advantages of longitudinal piston motion engines and engines with rotating pistons, because the proposed engine's piston partly rotate or swing around their axis and have at the same time the properties of engines with longitudinally moving pistons.

According to this invention, the piston is placed in two combustion chambers located on its top left or top right, viewed from the pivot axis, while the space located on the bottom left or right, viewed from the pivot axis, remains unused. Consequently, the swivelling piston as described in patent No. SI 21856 only uses the energy of two chambers at each swing. Should one desire to double the number of chambers, this design requires the addition of another swivelling piston, which results in a considerably larger engine.

Description of the invention

The subject invention solves the aforementioned problem by introducing one further piston that functions in four combustion chambers, whereby the upper two combustion chambers, viewing from the pivot axis, are top left and top right and the lower two chambers are on the bottom left and right.

Short description of the attached figures

The invention will be described below on the basis of the attached figures displaying:

Fig. 1 : Cross-section of the invented engine;

Fig. 2: Longitudinal cross-section of the invented engine;

Fig. 3: Disassembled display of the invented piston assembly;

Fig. 4: Three-dimensional display of the piston with the axis, connecting rod and crankshaft.

Detailed description of the invention

The description that follows will use the terms "piston" and "cylinder" as an analogy to standard cylindrical piston-equipped engines, although the piston and the cylinder of the engine that is the subject of the present invention are designed/shaped differently.

Motor 1 , subject of the present invention, is displayed in Figures 1 and 2, namely its frontal cross-section in Fig. 1 its longitudinal cross-section in Fig. 2.

Engine 1 is composed of a three-part block, whereby the central part of the block consists of the cavity - 3a - where the swivelling piston is moving, while the upper part of the block - 2 - and its lower part are essentially the same, containing parts that are placed in the head of standard engines, namely valves, spark plugs and the like.

The remaining elements of the engine that is the subject of the invention are well- known standard technical elements; therefore, we do not describe them herein (filters, exhaust system, sump, etc.). The cross-section of the swivelling piston - 5 - that is the subject of the invention, is rhombus-shaped with rounded corners at the obtuse angles - 5a - and bevelled corners at its sharp angles - 5b.

The central section of the piston - 5 - consists of reinforcement grids and a hub with a central through hole that is cogged and connected to the shaft, also cogged at this section, running from the middle part of the engine block - 3 - to the rear part of the engine - 7 - where it ends with another cogged section, which in turn connects with the crank - 8 - itself articulately joined with the connecting rod - 9 - and on to the crankshaft.

The functioning principle or the transfer of movement via the crank, connecting rod and crankshaft is a well-known engineering solution, as is the role of the crankshaft, therefore we refrain from describing these characteristics herein.

The sealing of the piston - 5 - at its lateral surfaces is done by lateral seal lamellas as described in the Slovenian patent No. 21856 (P-200400232; inventor: Hrzenjak N.), therefore we do not describe this in detail herein.

The swivelling piston - 5 - that is the essence of the present invention is displayed in greater detail in Figures 3 and 4. As it is evident from the aforementioned Figures, the extreme edges at the piston's sharp angles - 5b - are rounded, which is reflected in the shape of the central part of the engine block.

The characteristic of the engine - 1 - according to the invention in question is that one swivelling piston - 5 - has four combustion chambers - 1 1 , 22, 33 and 44 - that operate in the sequence of the four strokes of a four-stroke engine (suction, compression, explosion, exhaust).

In Figure 1 , the piston - 5 - is in one extreme position so that the chambers 22 and 44 are fully open, while the chambers 1 1 and 33 are completely closed. According to the invention in question, the sharp angle of the piston a can be between 8° and 60°, preferably between 20° and 40°, and optimally 30°.

In the case displayed in Figures 1 and 2, the central part of the engine block - 3 - is a single piece, inside which is the operating area in which the piston - 5 - swivels around its axis - 5c - thereby travelling along a segment of a circle. It is also possible to design a version comprising several swivelling pistons, fitted linearly along a single axis. The increase in the number of pistons does generate more power, but at the other hand, it results in significantly larger dimensions of the engine.

The invention in question is described using the attached Figures displaying a particular mode of practising the invention, but the invention is by no means limited by it. Anyone with sufficient experience in this field of engineering will realise that it allows for many variants of the present invention, which the present invention encompasses in full.

Claims

Claims
1. Internal combustion engine (1) with a swivelling piston, consisting of an engine block, a piston (5) fitted on one side to a bearing, swivelling around its axis (5c), a cogged shaft (6), a crank (8), a connecting rod (9) and a crankshaft (10), characterised by featuring a three-part engine block (2, 3, 4) and by the fact that the piston (5), which swivels inside the operating area (3a) of the central part of the block (3), functioning in four combustion chambers (1 1 , 22, 33, 44) and using the crank (8) and connecting rod (9) to drive the crankshaft (10).
2. Engine according to Claim 1 , characterised by the piston (5) in its central section featuring a hub with a central through hole with internal rim cogging, attached onto a cogged shaft (6).
3. Engine according to any of the previous Claims, characterised by the sharp
angles of the piston (a) being between 8° and 60°, preferably between 20° and 40°.
4. Engine according to any of the previous Claims, characterised by the sharp angle of the piston (a) being 30°.
5. Engine according to any of the previous Claims, characterised by both parts of the engine block (2, 4) being essentially the same.
PCT/SI2014/000033 2013-06-04 2014-06-03 Swivelling-piston internal combustion engine WO2014196936A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SIP-201300143 2013-06-04
SI201300143A SI24403A (en) 2013-06-04 2013-06-04 Swivelling-piston internal combustion engine

Publications (1)

Publication Number Publication Date
WO2014196936A1 true WO2014196936A1 (en) 2014-12-11

Family

ID=51212933

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SI2014/000033 WO2014196936A1 (en) 2013-06-04 2014-06-03 Swivelling-piston internal combustion engine

Country Status (2)

Country Link
SI (1) SI24403A (en)
WO (1) WO2014196936A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2624640A1 (en) * 1976-06-02 1977-12-08 Egidio Soncin Oscillating vane motor for use with pressurised gas - has external crank linked to vane through connecting rod and timed disc valves
FR2539814A1 (en) * 1983-01-21 1984-07-27 Dorchies Alain Machine with an oscillating piston which can be used as a 2-stroke or 4-stroke internal combustion engine, as a fluid transmission device, pump, compressor, or electric generator
SI21856A (en) 2004-08-23 2006-02-28 Niko Hrzenjak Internal combustion engine with oscillating pistons
DE102006050204A1 (en) * 2006-10-25 2008-07-03 Flörchinger, Otto Swinging-vane internal combustion engine i.e. valveless four-stroke internal combustion engine, has rotation valve system that overextends supply of working chambers, and crankshaft directly and jointly utilized for electric generator

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2624640A1 (en) * 1976-06-02 1977-12-08 Egidio Soncin Oscillating vane motor for use with pressurised gas - has external crank linked to vane through connecting rod and timed disc valves
FR2539814A1 (en) * 1983-01-21 1984-07-27 Dorchies Alain Machine with an oscillating piston which can be used as a 2-stroke or 4-stroke internal combustion engine, as a fluid transmission device, pump, compressor, or electric generator
SI21856A (en) 2004-08-23 2006-02-28 Niko Hrzenjak Internal combustion engine with oscillating pistons
DE102006050204A1 (en) * 2006-10-25 2008-07-03 Flörchinger, Otto Swinging-vane internal combustion engine i.e. valveless four-stroke internal combustion engine, has rotation valve system that overextends supply of working chambers, and crankshaft directly and jointly utilized for electric generator

Also Published As

Publication number Publication date
SI24403A (en) 2014-12-31

Similar Documents

Publication Publication Date Title
US5992356A (en) Opposed piston combustion engine
WO2005010329A3 (en) Split-cycle engine with dwell piston motion
MY165334A (en) Monoblock valveless opposing piston internal combustion engine
CN104204455B (en) A kind of reciprocating-piston mechanism
AR074080A2 (en) Four stroke engine cycle divided
US3386429A (en) Internal combustion engine
US20020083908A1 (en) Internal combustion engine with variable ratio crankshaft assembly
TW200508482A (en) Variable compression ratio engine
US20100180868A1 (en) Mechanism for Internal Combustion Piston Engines
KR101020826B1 (en) Variable compression ratio apparatus
CA2422663A1 (en) Engine
US3175544A (en) Internal combustion engines
AU2007294489B2 (en) Improved opposed piston combustion engine
CN101979853A (en) Internal dual-phase shockwave swing link transmission type internal combustion engine
US6006619A (en) Internal combustion engine with improved orbital crankshaft motion converter
US7124719B2 (en) Two-way cylinder engine
US5027755A (en) Wobble plate internal combustion engine
MX2008010533A (en) Internal combustion engine with variable compression ratio.
EP2119890B1 (en) Link type variable stroke engine
WO2012013298A3 (en) Internal combustion engine having a multi-joint crank drive and additional masses on articulated connecting rods of the multi-joint crank drive for damping free mass forces
US7600490B2 (en) Internal combustion engine
US4128084A (en) Rotary engine
US8443778B2 (en) Dual crankshaft internal combustion engine
DE102008040574B4 (en) piston engine
JP2009036030A (en) Crankshaft structure of high expansion ratio engine

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 14741995

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase in:

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 14741995

Country of ref document: EP

Kind code of ref document: A1