ES258122A1 - Unos perfeccionamientos en los motores diesel de dos tiempos turbosobrealimentados y con barrido de retorno - Google Patents
Unos perfeccionamientos en los motores diesel de dos tiempos turbosobrealimentados y con barrido de retornoInfo
- Publication number
- ES258122A1 ES258122A1 ES0258122A ES258122A ES258122A1 ES 258122 A1 ES258122 A1 ES 258122A1 ES 0258122 A ES0258122 A ES 0258122A ES 258122 A ES258122 A ES 258122A ES 258122 A1 ES258122 A1 ES 258122A1
- Authority
- ES
- Spain
- Prior art keywords
- ports
- exhaust
- sweep
- cylinder
- walls
- 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
Links
- 238000010408 sweeping Methods 0.000 abstract 3
- 230000007423 decrease Effects 0.000 abstract 2
- 238000002485 combustion reaction Methods 0.000 abstract 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/18—Other cylinders
- F02F1/22—Other cylinders characterised by having ports in cylinder wall for scavenging or charging
-
- 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
- F02B25/00—Engines characterised by using fresh charge for scavenging cylinders
-
- 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
- F02B33/00—Engines characterised by provision of pumps for charging or scavenging
- F02B33/44—Passages conducting the charge from the pump to the engine inlet, e.g. reservoirs
-
- 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
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
-
- 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
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/04—Engines with exhaust drive and other drive of pumps, e.g. with exhaust-driven pump and mechanically-driven second pump
-
- 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
- F02B75/02—Engines characterised by their cycles, e.g. six-stroke
- F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
- F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two
-
- 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
- F02B2720/00—Engines with liquid fuel
- F02B2720/23—Two stroke engines
- F02B2720/236—Two stroke engines scavenging or charging channels or openings
-
- 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
- F02B3/00—Engines characterised by air compression and subsequent fuel addition
- F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Supercharger (AREA)
Abstract
Perfeccionamientos en los motores Diesel de dos tiempos turbo-sobrealimentados y con barrido de retorno, caracterizados porque las lumbreras de escape de los cilindros abren antes y cierran después de la apertura y cierre respectivos de las lumbreras de barrido y del tipo en que se ha previsto un sistema de barrido, según el cual las lumbreras de barrido se hallan dispuestas a un solo lado del cilindro, simétricamente con relación a un plano axil, y según el cual los conductos que llevan el aire de barrido a las lumbreras inmediatamente adyacentes al plano de simetría se hallan provistos de paredes dirigidas hacia el citado plano, siendo su dirección en principio tangencial en relación a la pared del cilindro en el citado plano, y mostrando las paredes del conducto un súbito cambio de inclinación en dirección hacia el eje del cilindro inmediatamente en frente de las lumbreras del barrido, quedando formados los citados conductos por paredes dirigidas hacia la citada posición de cambio de inclinación, mientras que las paredes mencionadas en último lugar forman con el eje del cilindro un ángulo que disminuye a medida que estas paredes se acercan a la citada posición de cambio de inclinación, conduciendo las lumbreras de escape de uno o más cilindros el producto de la combustión hacia una turbina de escape que impulsa un compresor para el aire de barrido y el de carga del motor, caracterizado por haberse adaptando las duraciones de los periodos de pre-escape y de post-escape de suerte que una vez ha cesado el periodo de pre-escape, la presión en el cilindro disminuye con velocidad aproximadamente constante hasta alcanzar un valor mínimo, manteniéndose luego constante o creciendo solamente poco durante el periodo de barrido, después del cual la presión, como consecuencia del aumento de estrangulación en las lumbreras de escape incrementa rápidamente justamente antes o al mismo tiempo de cerrarse las lumbreras de barrido.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE448959 | 1959-05-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES258122A1 true ES258122A1 (es) | 1960-08-16 |
Family
ID=20264316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES0258122A Expired ES258122A1 (es) | 1959-05-11 | 1960-05-10 | Unos perfeccionamientos en los motores diesel de dos tiempos turbosobrealimentados y con barrido de retorno |
Country Status (3)
| Country | Link |
|---|---|
| CH (1) | CH383681A (es) |
| ES (1) | ES258122A1 (es) |
| GB (1) | GB949618A (es) |
-
1960
- 1960-04-13 CH CH423660A patent/CH383681A/de unknown
- 1960-04-20 GB GB13813/60A patent/GB949618A/en not_active Expired
- 1960-05-10 ES ES0258122A patent/ES258122A1/es not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB949618A (en) | 1964-02-12 |
| CH383681A (de) | 1964-10-31 |
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