GB778302A - Compound power plants - Google Patents
Compound power plantsInfo
- Publication number
- GB778302A GB778302A GB27052/54A GB2705254A GB778302A GB 778302 A GB778302 A GB 778302A GB 27052/54 A GB27052/54 A GB 27052/54A GB 2705254 A GB2705254 A GB 2705254A GB 778302 A GB778302 A GB 778302A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- engine
- piston
- spring
- compressor
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D23/00—Controlling engines characterised by their being supercharged
-
- 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)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
778,302. Charge pumps; regulating. NAPIER & SON, Ltd., D. Sept. 6, 1955 [Sept. 17, 1954], No. 27052/54. Classes 7 (2) and 7 (6). [Also in Groups XXVI and XXIX] Charge air, supplied to a two-stroke diesel engine A Fig. 1, by axial flow and centrifugal compressors E, F in series and powered respectively by an exhaust-gas turbine D and the engine, is throttled under idling and/ or low load slow running conditions by a valve H, thus ensuring satisfactory compression ignition at such times. A blow-off valve S operating as described below is incorporated. The compressors E, F may be linked by a fluid coupling or an infinitely-variable gear as in Specification 663,296 to transmit power from the crankshaft or chankshafts of the engine A to the compressor E or vice versa. The valve H is operated by a piston J in a hydraulic cylinder J<SP>2</SP>. Under normal engine operating conditions a servo-motor piston M<SP>1</SP> acting on a boost control (not shown), such as a ratio-control of a variable-speed gear between the engine A and compressor E, is in a position such that a spring-loaded valve K<SP>2</SP> in a supply duct L, K to the cylinder J<SP>2</SP> is closed and a spring J<SP>3</SP> therefore holds the valve H open. Under idling or low load conditions, however, the piston M<SP>1</SP> moves upward sufficiently for its rod M<SP>2</SP> to open the valve K<SP>2</SP> and the consequent feed to the cylinder J closes the valve H to give the negative boost required by the setting of a spring P acting on the servo-motor valve N via a lever O and loaded by a cam Q on an engine control shaft also mounting a cam Q<SP>2</SP> controlling via tracks Q<SP>4</SP> and Q<SP>5</SP> (appropriate in the case of an aircraft engine to no-power flight and ground running conditions) the fulcrum of a lever R<SP>1</SP> in the normal fuel injection control mechanism. The boost pressure re-acts on the valve N via a diaphragm O<SP>1</SP> the atmospheric pressure on which is counter-balanced by that on an evacuated capsule O<SP>2</SP>. The blow-off valve S, Fig. 1, operates to prevent compressor surging under idling &c. conditions, the compressor delivery pressure acting via a duct X on a spring-loaded pilot piston V<SP>2</SP> to uncover ducts V<SP>3</SP> or V<SP>4</SP> as this pressure falls or rises and so vent or pressurize the space below a main valve piston V and correspondingly open or close the valve member U<SP>2</SP>.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB27052/54A GB778302A (en) | 1954-09-17 | 1954-09-17 | Compound power plants |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB27052/54A GB778302A (en) | 1954-09-17 | 1954-09-17 | Compound power plants |
Publications (1)
Publication Number | Publication Date |
---|---|
GB778302A true GB778302A (en) | 1957-07-03 |
Family
ID=10253382
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB27052/54A Expired GB778302A (en) | 1954-09-17 | 1954-09-17 | Compound power plants |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB778302A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107363131A (en) * | 2017-06-30 | 2017-11-21 | 无锡威奥液压机电设备有限公司 | A kind of hand-hydraulic pipe bender |
-
1954
- 1954-09-17 GB GB27052/54A patent/GB778302A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107363131A (en) * | 2017-06-30 | 2017-11-21 | 无锡威奥液压机电设备有限公司 | A kind of hand-hydraulic pipe bender |
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