GB1471476A - Fuel injection pumps for multi-cylinder diesel engines - Google Patents
Fuel injection pumps for multi-cylinder diesel enginesInfo
- Publication number
- GB1471476A GB1471476A GB3012074A GB3012074A GB1471476A GB 1471476 A GB1471476 A GB 1471476A GB 3012074 A GB3012074 A GB 3012074A GB 3012074 A GB3012074 A GB 3012074A GB 1471476 A GB1471476 A GB 1471476A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pistons
- fuel injection
- idling
- pump
- throttling
- 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
1471476 Fuel injection pumps NIPPONDENSO CO Ltd 8 July 1974 [9 July 1973] 30120/74 Heading F1A In a multi-cylinder fuel injection pump, e.g. of the in-line type, wherein each of the pumping pistons is angularly adjustable and has an oblique control edge 2 which uncovers a spill port 5 to stop further delivery, some of the pistons are provided with a throttling discharge port I which connects the pumping chamber to the spill port 5 when the piston is turned to its rotary position corresponding to idling of the engine to be supplied by the pump. Thus at idling those cylinders of the engine fed by pump pistons with throttling discharge ports 1 are inoperative, thereby reducing the amount of unburnt gases emitted. At idling speed settings of the pistons but average or high engine speeds, the throttling effect of the discharge ports 1 ensures that the pistons with such ports do not become inoperative under these conditions. A longitudinal bore 4 connects the pumping chamber to the control edge 2 and discharge port 1.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7763673A JPS529252B2 (en) | 1973-07-09 | 1973-07-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1471476A true GB1471476A (en) | 1977-04-27 |
Family
ID=13639369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3012074A Expired GB1471476A (en) | 1973-07-09 | 1974-07-08 | Fuel injection pumps for multi-cylinder diesel engines |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS529252B2 (en) |
| BR (1) | BR7405618D0 (en) |
| DE (1) | DE2429423A1 (en) |
| GB (1) | GB1471476A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58142636U (en) * | 1982-03-19 | 1983-09-26 | 三菱重工業株式会社 | Heat pump air conditioner |
| JPS5956373U (en) * | 1982-10-06 | 1984-04-12 | 三菱自動車工業株式会社 | Fuel injection pump device for reduced cylinder engine |
-
1973
- 1973-07-09 JP JP7763673A patent/JPS529252B2/ja not_active Expired
-
1974
- 1974-06-19 DE DE19742429423 patent/DE2429423A1/en not_active Withdrawn
- 1974-07-08 BR BR561874A patent/BR7405618D0/en unknown
- 1974-07-08 GB GB3012074A patent/GB1471476A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BR7405618D0 (en) | 1975-05-06 |
| JPS5025930A (en) | 1975-03-18 |
| JPS529252B2 (en) | 1977-03-15 |
| DE2429423A1 (en) | 1975-02-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |