EP0007874B1 - Installation de production d'énergie à générateur à pistons libres - Google Patents

Installation de production d'énergie à générateur à pistons libres Download PDF

Info

Publication number
EP0007874B1
EP0007874B1 EP79400531A EP79400531A EP0007874B1 EP 0007874 B1 EP0007874 B1 EP 0007874B1 EP 79400531 A EP79400531 A EP 79400531A EP 79400531 A EP79400531 A EP 79400531A EP 0007874 B1 EP0007874 B1 EP 0007874B1
Authority
EP
European Patent Office
Prior art keywords
air
fraction
compressor
compression chambers
cooler
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
Application number
EP79400531A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0007874A1 (fr
Inventor
Henry Benaroya
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT79400531T priority Critical patent/ATE301T1/de
Publication of EP0007874A1 publication Critical patent/EP0007874A1/fr
Application granted granted Critical
Publication of EP0007874B1 publication Critical patent/EP0007874B1/fr
Expired legal-status Critical Current

Links

Images

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
    • F02B71/00—Free-piston engines; Engines without rotary main shaft
    • F02B71/04—Adaptations of such engines for special use; Combinations of such engines with apparatus driven thereby
    • F02B71/06—Free-piston combustion gas generators per se
    • 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
    • F02B75/04—Engines with variable distances between pistons at top dead-centre positions and cylinder heads

Definitions

  • the present invention relates to energy production installations comprising a gas generator with free pistons having several compressor compartments and at least one engine cylinder, and a gas turbine which receives the exhaust gases from the engine cylinder or engine cylinders.
  • the so-called internal engine pistons which are neighboring and which are mechanically connected to each other constitute, with the compressor pistons which they drive, an internal mobile assembly.
  • the two external engine pistons, which are also mechanically connected to each other and to associated compressor pistons, constitute a mobile assembly which can be described as external.
  • the installation may include, in addition to the generator and the gas turbine, a compressor, generally rotary, which supplies the compressor compartments with air at a pressure higher than atmospheric pressure, by means of a conventional cooler. .
  • the air supplied by the compressor cylinders passes through a cooler, then arrives at the engine cylinders where it is used as combustion and purge air.
  • the invention aims to provide an energy production installation that better meets those previously known to the requirements of practice, in particular in that the excess air supplied by the compressors is used under conditions which lead to increased efficiency. .
  • the invention provides an installation of the kind defined above, characterized in that the compressor compartments are divided into a first fraction and a second fraction, in that the compressor compartments of the first fraction are supplied with air by a supercharging compressor through a first air cooler and supply hot compressed air which is, at least partially, sent to a turbine, and in that the compressor compartments belonging to the second fraction are supplied by a compressor supercharging through a second cooler and supplying the engine cylinder or the engine cylinders through a third cooler.
  • the same rotary supercharger can supply the compressor compartments belonging to the first fraction and the second fraction (the number of compartments in each group can also be reduced to 1).
  • the rotary compressor can be driven by the hot air turbine.
  • the air cooled by partial expansion in the air turbine can be mixed with the air flow leaving the rotary compressor.
  • these compartments will advantageously be provided to supply air at a pressure lower than that supplied by the other compartments, so that the air and gases arriving at the turbine are at the same pressure.
  • one of the fractions may be constituted by the compressor compartments situated on one side of the median plane, the other fraction being constituted by the compressor compartments situated from the on the other hand, so that the external and internal crews are subjected to the same efforts.
  • FIG. 1 The installation shown diagrammatically in FIG. 1 comprises a generator with free pistons which it will be assumed, for example, that it comprises two compressor cylinders 3a and 3n in which compressor pistons 2a and 2n limit compression compartments.
  • the piston 2n is mechanically coupled to two engine pistons 7 placed one in an engine cylinder 5, the other in a engine cylinder 6.
  • the piston 2a is mechanically coupled to pistons 8 also placed in the cylinders 5 and 6 and delimiting combustion chambers with the pistons 7.
  • the mechanical couplings must obviously take account of the relative arrangement of the cylinders in space; Figure 2 will show a possible embodiment.
  • the compressor compartments 3a and 3n are supplied by a rotary supercharging compressor 20 which sucks in air at atmospheric pressure and discharges it into a line 21.
  • Part of the air coming from the line 21 is supplied, via from an air cooler 22 which may be of the conventional type, to an inlet valve (not shown) of the compressor compartment 3a.
  • the other part of the air coming from line 21 is directed to an inlet valve of the compressor compartment 3n, by means of an air cooler 23, which forces the air passing through it to drop higher temperature than cooler 22.
  • the air discharged from the compartment 3n passes through a third cooler 24 before being admitted into the engine cylinders 5 and 6, by intake and scanning lights.
  • the exhaust gases from the engine cylinders are sent to one or more gas turbines 25 driving one or more electricity generators 26.
  • Control valves are provided so that the quantity of air admitted to the engine cylinders ensures satisfactory combustion and sweeping without overheating.
  • the air coming from the compressor compartment 3a feeds a hot air turbine 27 which drives the rotary compressor 20.
  • the exhaust of the air turbine 27 can be carried out in the open air, but it will often be more advantageous to return this air, cooled by its expansion, towards line 21 (as indicated in dashes in FIGS. 1 and 2). In this case, there will obviously be only partial expansion in the turbine 27.
  • the overall efficiency will be increased since the adiabatic efficiency of the compressor will only affect the additional air. In return, precautions must be taken so that the oil contained in the air leaving the turbine does not clog the compressor compartments.
  • a fraction of the air from the compressor 3a, adjustable using a valve 28, is however returned upstream of the gas turbine 25, to give more flexibility to the 'installation.
  • This return can take place via a pressure balancing diaphragm upstream of the gas turbine, but it is more advantageous to give the compressor compartments 3a a lower compression ratio than the compressors 3n.
  • the supercharging compressor 20 supplies air at a pressure of 1.4 bar (in absolute value). Under normal conditions, this air is brought back from a temperature of 54 ° C to respective temperatures of 45 ° C and 25 ° C by the coolers 22 and 23.
  • the compressor compartments 3a and 3n respectively raise the pressure of the air at 5.9 bars and 6.4 bars absolute approximately.
  • the gas temperature goes from 210 ° C to 149 ° C in the exchanger 24, then to 619 ° C at the outlet of the engine cylinders 5 and 6.
  • Figure 1 shows the installation only schematically and many elements are not shown, in particular the necessary adjustment valves.
  • each of the elements represented is likely to be replaced by several.
  • the rotary compressor (which can also be replaced by a volumetric machine) must be equipped with means intended to prevent it from being pumped, for example by direct return of air from its discharge to its intake, when an operation is detected. close to the pumping line.
  • Each line of compressor cylinders includes two external cylinders and two internal cylinders, each double acting and fitted with inlet and outlet valves is lying.
  • the pistons 2a and 2n move which delimit in the cylinders compressor compartments 3a and 3n, as well as symmetrical compartments.
  • the internal cylinders slide pistons 2b and 2c which delimit on their side compressor compartments 3b and 3c.
  • the generator's external mobile assembly comprises the engine pistons 7 interconnected and with the compressor pistons by cross-members 35 and a central tie rod.
  • the internal mobile assembly comprises, on its side, internal engine pistons 8, circulating in the same engine cylinders 5 and 6 as the pistons 7 of the external crew.
  • the pistons 8 are connected to the compressor pistons 2b and 2c by a cross-member 31.
  • Each of the compressor cylinders is provided with inlet and outlet valves such as 37 and 38.
  • the devices other than the generator have been represented in the form of a simple block diagram in FIG. 2. It can be seen that only the compressor compartments delimited by the compressor pistons 2a and 2b are used to supply the hot air turbine 27. The compartments of the compressor cylinders delimited by the pistons 2c and 2n supply the engine cylinders 6 and 7 through the air cooler 24.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)
  • Supercharger (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
EP79400531A 1978-07-26 1979-07-25 Installation de production d'énergie à générateur à pistons libres Expired EP0007874B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT79400531T ATE301T1 (de) 1978-07-26 1979-07-25 Anlage zur energieerzeugung mit einem freikolbengenerator.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7822168 1978-07-26
FR7822168A FR2432089A1 (fr) 1978-07-26 1978-07-26 Installation de production d'energie a generateur a pistons libres

Publications (2)

Publication Number Publication Date
EP0007874A1 EP0007874A1 (fr) 1980-02-06
EP0007874B1 true EP0007874B1 (fr) 1981-10-14

Family

ID=9211214

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79400531A Expired EP0007874B1 (fr) 1978-07-26 1979-07-25 Installation de production d'énergie à générateur à pistons libres

Country Status (4)

Country Link
EP (1) EP0007874B1 (enrdf_load_stackoverflow)
AT (1) ATE301T1 (enrdf_load_stackoverflow)
DE (1) DE2960986D1 (enrdf_load_stackoverflow)
FR (1) FR2432089A1 (enrdf_load_stackoverflow)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2533628B2 (fr) * 1978-07-26 1988-10-21 Benaroya Henry Installation de production d'energie a generateur a pistons libres
FR2456231A1 (fr) * 1979-05-07 1980-12-05 Benaroya Henry Perfectionnements apportes aux machines tandem a pistons libres opposes comportant plusieurs elements compresseurs
FR2459875A1 (fr) * 1979-06-25 1981-01-16 Benaroya Henry Perfectionnements aux machines a pistons libres multi-tandem
FR2587062B1 (fr) * 1985-09-11 1989-11-17 Benaroya Henry Installation de production d'energie a plusieurs cylindres moteurs a cycle diesel suralimentes par compresseurs alternatifs

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH216488A (de) * 1940-08-07 1941-08-31 Sulzer Ag Kompressor mit Brennkraftmaschinenantrieb, insbesondere in Freikolbenbauart.
DE811518C (de) * 1949-06-14 1951-08-20 Participations Eau Soc Et Freiflugkolbenmaschine mit einem wenigstens zweistufigen Verdichterteil
FR1094386A (fr) * 1953-11-16 1955-05-20 Rateau Soc Perfectionnements aux installations à turbines à gaz avec générateurs de gaz à mouvement alternatif
FR1547421A (fr) * 1967-05-24 1968-11-29 Perfectionnements apportés aux machines tandem à pistons libres
FR1601540A (enrdf_load_stackoverflow) * 1968-12-27 1970-08-24
FR1602072A (enrdf_load_stackoverflow) * 1968-12-30 1970-10-05
US3995427A (en) * 1975-05-15 1976-12-07 Resonance Motors, Inc. Multiple-phase combustion engine embodying hydraulic drive

Also Published As

Publication number Publication date
EP0007874A1 (fr) 1980-02-06
ATE301T1 (de) 1981-10-15
DE2960986D1 (en) 1981-12-24
FR2432089A1 (fr) 1980-02-22
FR2432089B1 (enrdf_load_stackoverflow) 1981-02-06

Similar Documents

Publication Publication Date Title
EP0038232B1 (fr) Procédé et système de génération de puissance par moteur à combustion interne suralimenté
EP0273959B1 (fr) Installation de production d'energie a moteur a combustion interne et turbine
FR2660366A1 (fr) Systeme d'air refrigere auxiliaire utilisant un melange d'air evacue du compresseur de moteur a turbine et d'air recycle dans le systeme auxiliaire.
FR2772835A1 (fr) Systeme de transfert d'ecoulement servant au refroidissement module d'une turbine
FR2611229A1 (fr) Turboreacteur a soufflante carenee a cycle compound
KR102019931B1 (ko) 배기가스 재순환 시스템을 갖춘 대형 터보차징 2 행정 압축 점화 엔진
FR2535392A1 (fr) Systeme de suralimentation pour moteurs a combustion interne
FR2845137A1 (fr) Refroidissement intermediaire a flux radial monte interieurement pour compresseur rotatif
SE512943C2 (sv) Förbränningsmotor
FR2662211A1 (fr) Moteur a combustion interne, suralimente par un groupe de turbocompresseurs dont certaines peuvent etre mis hors service.
FR2996878A1 (fr) Moteur thermique pour l'entrainement d'un arbre moteur
EP0253866A1 (en) Compound engines
FR2904365A1 (fr) Moteur a combustion interne comprenant un dispositif de suralimentation en air
EP0007874B1 (fr) Installation de production d'énergie à générateur à pistons libres
FR2737838A1 (fr) Systeme de refroidissement integre pour convertisseur de puissance utilisant l'air d'admission d'une turbine
US4248293A (en) Apparatus for cooling engine oil
EP1654448B1 (fr) Moteur suralimente comprenant au moins deux etages de turbocompression
US11542858B2 (en) Charge air cooling unit for a two-staged turbocharger
JPH0586899A (ja) 双スプールガスタービンエンジン
US6655142B2 (en) Separate shaft turbocharger
FR3115316A1 (fr) Turbogenerateur a couplage magnetique
FR2533628A2 (fr) Installation de production d'energie a generateur a pistons libres
FR2479330A1 (fr) Moteur a combustion interne suralimente par turbo-compresseur
FR3115821A1 (fr) Systeme de propulsion et de recuperation de chaleur equipant un vehicule automobile
FR2459366A1 (fr) Perfectionnements aux machines a pistons libres

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH DE GB IT LU NL SE

17P Request for examination filed
ITF It: translation for a ep patent filed
GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): AT BE CH DE GB IT LU NL SE

REF Corresponds to:

Ref document number: 301

Country of ref document: AT

Date of ref document: 19811015

Kind code of ref document: T

TCAT At: translation of patent claims filed
REF Corresponds to:

Ref document number: 2960986

Country of ref document: DE

Date of ref document: 19811224

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19820731

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 19830624

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19840630

Year of fee payment: 6

Ref country code: DE

Payment date: 19840630

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19860623

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19870731

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Effective date: 19890725

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19890726

ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19890731

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19890905

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19890914

Year of fee payment: 11

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19900201

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19900403

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19900725

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Effective date: 19900731

Ref country code: BE

Effective date: 19900731

BERE Be: lapsed

Owner name: BENAROYA HENRY

Effective date: 19900731

GBPC Gb: european patent ceased through non-payment of renewal fee
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

EUG Se: european patent has lapsed

Ref document number: 79400531.4

Effective date: 19900418

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT