GB497985A - Fuel injection pump for internal combustion engines - Google Patents
Fuel injection pump for internal combustion enginesInfo
- Publication number
- GB497985A GB497985A GB5175/38A GB517538A GB497985A GB 497985 A GB497985 A GB 497985A GB 5175/38 A GB5175/38 A GB 5175/38A GB 517538 A GB517538 A GB 517538A GB 497985 A GB497985 A GB 497985A
- Authority
- GB
- United Kingdom
- Prior art keywords
- piston
- port
- fuel
- delivery
- until
- 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
- F02M59/36—Varying fuel delivery in quantity or timing by variably-timed valves controlling fuel passages to pumping elements or overflow passages
-
- 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
- F02M2700/00—Supplying, feeding or preparing air, fuel, fuel air mixtures or auxiliary fluids for a combustion engine; Use of exhaust gas; Compressors for piston engines
- F02M2700/13—Special devices for making an explosive mixture; Fuel pumps
- F02M2700/1317—Fuel pumpo for internal combustion engines
- F02M2700/137—Fuel pump with control of fuel outlet of pumping chamber to delivery pipe
Abstract
497,985. Fuel-injection pumps. HUMBOLDT-DEUTZMOTOREN ART. -GES. Feb. 18, 1938, No. 5175. Convention date, Feb. 18, 1937. [Class 102 (i.)] In a fuel-injection pump, a piston 15 is reciprocated mechanically and has a bore 19 containing an accumulator piston 16 loaded by a spring. Suction having taken place through ports 21 and passage 20, during upward movement of the piston 15, the fuel trapped in the bore 19 raises the piston 16 until port 25a coincides with the overflow port 24 when the piston 16 descends until the edge 26 closes the port 25a. The port 23a then coincides with the delivery port 22 and fuel is delivered until the inclined edge 27 closes the port 23a. Several ports 23a, 25a are provided so that an interrupted injection takes place. Either of the pistons 15, 16 may be rotated to vary the delivery. The piston 16 may be provided. with a stop, preferably a stiff spring so that the injector jets, if choked, may be cleared. The Specification as open to inspection under Sect. 91 comprises also an arrangement wherein the end of the piston 16 is flat and the port 24 is connected to an adjustable throttle valve for varying the delivery. In an arrangement of this kind, several pumps are arranged in a circle with parallel cylinders and actuated by a common cam and each of the overflow passages is connected to a common throttle valve. This subject-matter does not appear in the Specification as accepted.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE497985X | 1937-02-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB497985A true GB497985A (en) | 1939-01-02 |
Family
ID=6545248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5175/38A Expired GB497985A (en) | 1937-02-18 | 1938-02-18 | Fuel injection pump for internal combustion engines |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB497985A (en) |
-
1938
- 1938-02-18 GB GB5175/38A patent/GB497985A/en not_active Expired
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