GB659301A - Improvements in injection pump pistons - Google Patents
Improvements in injection pump pistonsInfo
- Publication number
- GB659301A GB659301A GB114549A GB114549A GB659301A GB 659301 A GB659301 A GB 659301A GB 114549 A GB114549 A GB 114549A GB 114549 A GB114549 A GB 114549A GB 659301 A GB659301 A GB 659301A
- Authority
- GB
- United Kingdom
- Prior art keywords
- port
- recess
- injection pump
- piston
- fuel
- 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
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/20—Varying fuel delivery in quantity or timing
- F02M59/24—Varying fuel delivery in quantity or timing with constant-length-stroke pistons having variable effective portion of stroke
- F02M59/26—Varying fuel delivery in quantity or timing with constant-length-stroke pistons having variable effective portion of stroke caused by movements of pistons relative to their cylinders
- F02M59/265—Varying fuel delivery in quantity or timing with constant-length-stroke pistons having variable effective portion of stroke caused by movements of pistons relative to their cylinders characterised by the arrangement or form of spill port of spill contour on the piston
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
659,301. Fuel-injection pumps. SCORZONI, R. Jan. 14, 1949, No. 1145. [Class 102(i)] In a fuel-injection pump, the piston is provided with a number of control recesses 12, 12' that are bounded by inclined edges 3, 3' and communicate through grooves 10, 10<SP>1</SP> with the pumping space. The cylinder has a similar number of control ports 5, 5<SP>1</SP>, all except one being sealed, e.g. by screwed plug 11, so that one recess and one port co-operate at one time. When wear has occurred, the port can be sealed and another brought into operation. In a modification, one port is provided in the cylinder and the piston is rotated to bring another recess into operation with it. The recesses may communicate with the pumping space through diametral and axial bores and the lower edge of the recess may be inclined.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB114549A GB659301A (en) | 1949-01-14 | 1949-01-14 | Improvements in injection pump pistons |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB114549A GB659301A (en) | 1949-01-14 | 1949-01-14 | Improvements in injection pump pistons |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB659301A true GB659301A (en) | 1951-10-24 |
Family
ID=9716966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB114549A Expired GB659301A (en) | 1949-01-14 | 1949-01-14 | Improvements in injection pump pistons |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB659301A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4090819A (en) * | 1975-11-05 | 1978-05-23 | Societe D'etudes De Machines Thermiques | Fuel injection pump with cavitation preventing steps along the fuel return flow path |
-
1949
- 1949-01-14 GB GB114549A patent/GB659301A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4090819A (en) * | 1975-11-05 | 1978-05-23 | Societe D'etudes De Machines Thermiques | Fuel injection pump with cavitation preventing steps along the fuel return flow path |
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