SU928052A1 - Piston for automatic changing of i.c. engine compression degree - Google Patents
Piston for automatic changing of i.c. engine compression degree Download PDFInfo
- Publication number
- SU928052A1 SU928052A1 SU802987109A SU2987109A SU928052A1 SU 928052 A1 SU928052 A1 SU 928052A1 SU 802987109 A SU802987109 A SU 802987109A SU 2987109 A SU2987109 A SU 2987109A SU 928052 A1 SU928052 A1 SU 928052A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- piston
- hydraulic cavity
- compression degree
- engine compression
- automatic changing
- Prior art date
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
- F02B75/04—Engines with variable distances between pistons at top dead-centre positions and cylinder heads
- F02B75/044—Engines with variable distances between pistons at top dead-centre positions and cylinder heads by means of an adjustable piston length
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Description
в корпусе 2 поршн выполнена гидравлическа полость 10, в которой происходит перемещение поршенька 11 с обратным клапаном. 8 канале подвода масла к полости установлен обратный клапан 12. В сливном клапане находитс плунжер 13 с жиклером.The piston body 2 has a hydraulic cavity 10 in which the piston 11 moves with a check valve. 8, an oil supply channel to the cavity is provided with a check valve 12. A plunger 13 with a jet is located in the drain valve.
При работе двигател на малых оборотах поршенек с обратным клапаном совершает возвратно-поступательное движение в гидравлической полости, прокачива масло, поступающее из системы смазки двигател к плунжеру, установленному в сливном клапане. Слив поданного масла осуществл етс через жиклер плунжера, диаметр проходного сечени которого рассчитываетс с условием пропуска количества масла, поданного на малых оборотах. При увеличении оборотов подача масла поршеньком к плунжеру сливного клапана растет, масл9, не успева полностью сливатьс , давит на плунжер и сдвигает его, увеличива нат г пружины , тем самым компенсиру действие возросших си инерции масс пружины и иглы. И чем больше обороты двигател , тем сильнее нат г пружины. Поэтому обеспечиваетс постр нство максимальных давлени сгорани в зависимости от скоростного режиЭ а.When the engine is running at low speed, the pistons with a check valve reciprocate in the hydraulic cavity, pumping oil from the engine lubrication system to the plunger installed in the drain valve. The discharged oil is drained through the plunger jet, the bore diameter of which is calculated with the condition of passing the amount of oil supplied at low speed. As the revolutions increase, the oil supply to the plunger of the drain valve by the piston grows; And the more engine rpm, the stronger the tension of the spring. Therefore, maximum combustion pressures are provided, depending on the velocity mode.
При снижении оборотов давлени масла падает, подача его уменьшаетс , а жиклер плунжера успевает сливать поданное количество масла. Под действием пружины плунжер перемещаетс вверх, уменьша ее нат г.When the oil pressure is reduced, the oil pressure drops, its supply decreases, and the plunger jet manages to drain the amount of oil fed. Under the action of the spring, the plunger moves upward, reducing its tension.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU802987109A SU928052A1 (en) | 1980-09-29 | 1980-09-29 | Piston for automatic changing of i.c. engine compression degree |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU802987109A SU928052A1 (en) | 1980-09-29 | 1980-09-29 | Piston for automatic changing of i.c. engine compression degree |
Publications (1)
Publication Number | Publication Date |
---|---|
SU928052A1 true SU928052A1 (en) | 1982-05-15 |
Family
ID=20919686
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU802987109A SU928052A1 (en) | 1980-09-29 | 1980-09-29 | Piston for automatic changing of i.c. engine compression degree |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU928052A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4776308A (en) * | 1985-02-15 | 1988-10-11 | Blackburn Anthony E | Piston engines |
-
1980
- 1980-09-29 SU SU802987109A patent/SU928052A1/en active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4776308A (en) * | 1985-02-15 | 1988-10-11 | Blackburn Anthony E | Piston engines |
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