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54:
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engines operate at a much higher pressure, up to 30,000 psi (2,100 bar) and have configurations such as common rail radial piston, common rail two piston radial, inline, port and helix, and metering unit. Injection pumps are fuel lubricated which prevents oil from contaminating the fuel.
325:
Plunger-type pumps are a type of positive-displacement pump used by diesel engines. These pumps contain a chamber whose volume is increased and/or decreased by a moving plunger, along with check valves at the inlet and discharge ports. It is similar to that of a piston pump, but the high-pressure
293:
Port and Helix pumps are most commonly used in marine diesel engines because of their simplicity, reliability, and its ability to be scaled up in proportion to the engine size. The pump is similar to that of a radial piston-type pump, but instead of a piston it has a machined plunger that has no
356:
Since the electric pump does not require mechanical power from the engine, it is feasible to locate the pump anywhere between the engine and the fuel tank. The reasons that the fuel pump is typically located in the fuel tank are:
230:
Carbureted engines often use low-pressure mechanical pumps that are mounted on the engine. Fuel injected engines use either electric fuel pumps mounted inside the fuel tank (for lower pressure
245:
system, i.e. by simply mounting the tank higher than the carburetor. This method is commonly used in carbureted motorcycles, where the tank is usually directly above the engine.
529:
349:
systems, this "in-tank" fuel pump transports the fuel from the fuel tank to the engine, as well as pressurising the fuel to typically 40–60 psi (3–4 bar). While for
522:
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353:
systems, the in-tank fuel pump transports the fuel to the engine, where a separate fuel pump pressurises the fuel (to a much higher pressure).
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368:
In-tank fuel pumps are often part of an assembly consisting of the fuel pump, fuel strainer and fuel level sensor (the latter used for the
364:
Liquid fuel by itself (i.e. without oxygen present) isn't flammable, therefore surrounding the fuel pump by fuel reduces the risk of fire
309:
device that rotates the plunger, thus allowing variable amounts of fuel to the area above the plunger. The fuel is then forced through a
515:
1036:
424:
137:
241:
Some engines do not use any fuel pump at all. A low-pressure fuel supply used by a carbureted engine can be achieved through a
257:(e.g. in older cars, lawnmowers and power tools), a mechanical fuel pump is typically used in order to transfer fuel from the
714:
75:
447:
1011:
161:
Electric fuel pump (silver), along with the fuel strainer (dark brown) and fuel level sensor (light brown circular object)
595:
118:
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into the carburetor. These fuel pumps operate at a relatively low fuel pressure of 10–15 psi (0.7–1.0 bar).
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298:, the injection to the cylinder is finished and it is returned on its downward stroke by a compression spring.
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In fuel-injected petrol engines, an electric fuel pump is typically located inside the fuel tank. For older
104:
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By submerging the pump in fuel at the bottom of the tank, the pump is cooled by the surrounding fuel
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333:. These pumps usually run at a fuel pressure of 3,600–26,100 psi (250–1,800 bar).
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Plunger-type pumps are often mounted on the side of the injection pump and driven by the
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systems) or high-pressure mechanical pumps mounted on the engine (for high-pressure
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seal is stationary while the smooth cylindrical plunger slides through the seal.
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For the machine at a filling station used to pump fuel into vehicles, see
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305:, the amount of fuel being pumped to the injector is controlled by a
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to the device where it is mixed with the intake air (such as the
1102:
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47:
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to supply the fuel and oxidizer into the combustion chamber.
207:
is a component used in many liquid-fuelled engines (such as
501:(Vol. 7). Cambridge, Massachusetts: Robert Bentley Inc.
264:
The two most widely used types of mechanical pumps are
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Classroom Manual for
Automotive Fuels and Emissions
78:. Unsourced material may be challenged and removed.
523:
8:
479:Mollenhauer, K., & Tschöke, H. (2010).
530:
516:
508:
138:Learn how and when to remove this message
596:Crankcase ventilation system (PCV valve)
405:
215:engines) to transfer the fuel from the
493:
491:
489:
7:
475:
473:
471:
76:adding citations to reliable sources
25:
419:. Cengage Learning. p. 154.
185:
175:Mechanical fuel pump in a 1980s
168:
154:
52:
698:Overhead valve (pushrod) layout
63:needs additional citations for
294:seals. When the plunger is at
276:High-pressure mechanical pumps
1:
1192:Engine fuel system technology
499:Modern Smaller Diesel Engines
301:Due to the fixed height of a
249:Low-pressure mechanical pumps
192:High-pressure fuel pump on a
483:. Berlin: Springer- Verlag.
1213:
539:Internal combustion engine
481:Handbook of Diesel Engines
413:Hollembeak, Barry (2005).
36:
29:
1156:
1007:Diesel particulate filter
959:Idle air control actuator
900:Engine control unit (ECU)
545:
448:"Diesel fuel tech review"
1072:Viscous fan (fan clutch)
984:Throttle position sensor
693:Overhead camshaft layout
37:Not to be confused with
611:Core plug (freeze plug)
347:throttle-body injection
253:On engines that use a
380:Rocket engines use a
852:Compression ignition
289:Port and Helix pumps
196:marine diesel engine
72:improve this article
1002:Catalytic converter
1128:Knocking / pinging
720:Combustion chamber
497:Judge, A. (1965).
394:List of auto parts
321:Plunger-type pumps
232:manifold injection
18:Fuel pump (engine)
1197:Engine components
1174:
1173:
1143:Stratified charge
910:Electrical system
892:Engine management
725:Compression ratio
665:Starter ring gear
564:rotating assembly
280:Pumps for modern
148:
147:
140:
122:
16:(Redirected from
1204:
1017:Exhaust manifold
882:Spark plug wires
768:Boost controller
755:Forced induction
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351:direct-injection
282:direct-injection
236:direct injection
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1148:Top dead centre
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833:
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705:Tappet / lifter
688:Flathead layout
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455:www.chevron.com
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307:rack and pinion
296:top dead center
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266:diaphragm pumps
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209:petrol/gasoline
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1037:Cooling system
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994:Exhaust system
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964:Inlet manifold
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819:Fuel injection
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586:Connecting rod
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343:port injection
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337:Electric pumps
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43:fuel injection
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1050:Water cooling
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1027:Oxygen sensor
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944:
942:Intake system
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934:
933:Starter motor
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872:Ignition coil
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804:Petrol engine
802:
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799:Diesel engine
797:
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790:
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779:
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763:Blowoff valve
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680:Cylinder head
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571:Balance shaft
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426:9781401839048
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315:fuel injector
313:and into the
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270:plunger pumps
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225:fuel injector
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92:
89: –
88:
84:
83:Find sources:
77:
73:
67:
66:
61:This article
59:
55:
50:
49:
44:
40:
33:
32:Gasoline pump
19:
1057:Electric fan
857:Coil-on-plug
823:
783:Turbocharger
778:Supercharger
650:Main bearing
640:Firing order
630:Displacement
576:Block heater
560:Engine block
548:Part of the
547:
498:
480:
458:. Retrieved
454:
442:
430:. Retrieved
415:
408:
379:
367:
355:
340:
328:
324:
300:
292:
279:
263:
252:
243:gravity feed
240:
229:
204:
202:
194:Yanmar 2GM20
134:
125:
115:
108:
101:
94:
82:
70:Please help
65:verification
62:
1081:Lubrication
1045:Air cooling
862:Distributor
814:Fuel filter
792:Fuel system
773:Intercooler
740:Timing belt
730:Head gasket
660:Piston ring
311:check valve
87:"Fuel pump"
1181:Categories
1133:Power band
1093:Oil filter
1067:Thermostat
1012:EGT sensor
974:MAF sensor
969:MAP sensor
954:Air filter
918:Alternator
877:Spark plug
809:Carburetor
735:Rocker arm
675:Valvetrain
606:Crankshaft
550:Automobile
400:References
376:Turbopumps
370:fuel gauge
255:carburetor
238:systems).
221:carburetor
98:newspapers
39:carburetor
867:Glow plug
829:Fuel tank
824:Fuel pump
591:Crankcase
460:3 January
382:turbopump
259:fuel tank
217:fuel tank
205:fuel pump
128:June 2012
1166:Category
1111:Dry sump
1107:Wet sump
1098:Oil pump
1062:Radiator
979:Throttle
839:Ignition
710:Camshaft
635:Flywheel
616:Cylinder
601:Crankpin
432:June 12,
388:See also
331:camshaft
317:nozzle.
303:cam lobe
1138:Redline
1022:Muffler
923:Battery
847:Magneto
177:Saab 90
112:scholar
1161:Portal
949:Airbox
928:Dynamo
655:Piston
645:Stroke
624:layout
552:series
423:
213:diesel
114:
107:
100:
93:
85:
1187:Pumps
1121:Other
745:Valve
715:Chest
451:(PDF)
119:JSTOR
105:books
1103:Sump
620:bank
581:Bore
462:2023
434:2012
421:ISBN
345:and
268:and
91:news
27:Pump
1088:Oil
677:and
562:and
372:).
227:).
223:or
211:or
74:by
41:or
1183::
1109:,
622:,
488:^
470:^
453:.
272:.
203:A
1113:)
1105:(
626:)
618:(
531:e
524:t
517:v
464:.
436:.
141:)
135:(
130:)
126:(
116:·
109:·
102:·
95:·
68:.
45:.
34:.
20:)
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