US2229048A - Means for facilitating the starting of internal combustion engines for motor vehicles using a vacuumgoverned fuel injection pump - Google Patents

Means for facilitating the starting of internal combustion engines for motor vehicles using a vacuumgoverned fuel injection pump Download PDF

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Publication number
US2229048A
US2229048A US228870A US22887038A US2229048A US 2229048 A US2229048 A US 2229048A US 228870 A US228870 A US 228870A US 22887038 A US22887038 A US 22887038A US 2229048 A US2229048 A US 2229048A
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United States
Prior art keywords
starting
fuel injection
internal combustion
facilitating
motor vehicles
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Expired - Lifetime
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US228870A
Inventor
Colell Richard Friedrich
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Austin Motor Co Ltd
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Austin Motor Co Ltd
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Publication date
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Publication of US2229048A publication Critical patent/US2229048A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D1/00—Controlling fuel-injection pumps, e.g. of high pressure injection type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2700/00—Mechanical control of speed or power of a single cylinder piston engine
    • F02D2700/02—Controlling by changing the air or fuel supply
    • F02D2700/0269—Controlling by changing the air or fuel supply for air compressing engines with compression ignition
    • F02D2700/0282—Control of fuel supply
    • F02D2700/0284—Control of fuel supply by acting on the fuel pump control element
    • F02D2700/0287—Control of fuel supply by acting on the fuel pump control element depending on several parameters

Definitions

  • the set-screw is adjustable in relation to the lever M and is secured in its adjusted position by a lock nut p.
  • the whole of the mechanism comprised in the auxiliary governor and the lever M and stop P are enclosed in a casing Q and are inaccessible to the driver of the vehicle.
  • the stop is, however, in its rearward position so that further increase of fuel is prevented.
  • the movement of the stop P in a rearward direction is, of course, limited by the engagement of the sleeve K against the collar :7
  • the fuel supply t exceed a predetermined controlled maximum per cycle; but for starting a supply in excess of such controlled maximum is obtained.
  • a fuel injection pump a control rod controlling the quantity of fuel supplied at each stroke of the pump and connected to said diaphragm in such a manner that as the vacuum decreases the control rod is moved in adirection to increase the fuel supply, a stop to limit the movement of said rod in said direction, said stop remaining in one definite position during all normal running speeds, and an auxiliary centrifugal out of said definite position to allow of the injection of an excess of fuel ior starting and moved back to its definite position for running.

Description

Jan. 21, 1941. R. F. COLELL 2,229,048
MEANS FOR FACILITATINGTHE STARTING OF INTERNAL COMBUSTION ENGINES FOR MOTOR VEHICLES USING A VACUUM-GOVERNED FUEL INJECTION PUMP" Filed Sept. 7, 193B 2 Sheets-Sheet l g j? 1" lfl j fffl ffff I: ..i I- 1 7" v """"f I a I 1 J H .3 15* Q 6 C I Ill .11-..- P
JV 1'2 17 n Z;Z I
(1 Z 9 1M, 1 Z,"
a Q I I119: enfibrz Jan. 21, 1941. R; F. COLELL 2,229,048 MEANS FOR FACILITATING THE STARTING OF INTERNAL COMBUSTION ENGINES I FOR MOTOR VEHICLES USING A VACUUM-GOVERNED FUEL INJECTION PUMP Filed Sept. 7, 1938 2 Sheets-Sheet 2 77/ i g a B 7 f ,fizvmfiol': Pickara' Friedrick (Hell.
carries at its upper end a set-screw P forming the stop to the forward movement of the pump rack C. The set-screw is adjustable in relation to the lever M and is secured in its adjusted position by a lock nut p.
The whole of the mechanism comprised in the auxiliary governor and the lever M and stop P are enclosed in a casing Q and are inaccessible to the driver of the vehicle.
Assuming that the engine is stationary, the parts are as shown in Figure 1. It will be seen the sleeve K is being pressed by the spring L as far as it willgo in a rearward direction so that the lower end oi the lever M is also in its most rearward position and the stop P in its most forward position. There being no suction in the chamber E the spring F is pressing the pump rack G forwardly against the stop P. With the pump rack in this position and as soon as the engine is turned for-starting the pump delivers fuel in excess or the normal maximum delivery, thus Iacilitating starting. when the engine has started the engine suction causes the pump rack C to move away from the stop; but so long as the engine has not reached a predetermined speed the centrifugal force of the weights h is not sumcient to impel the sleeve K forwardly against the force ofthe spring L and the parts of the auxiliary governor as well as the stop P are still in the same position as that shown for these parts in figure 1.
As soon, however, as the engine reaches a predetermined speed the centrifugal i'orce oi the weights it becomes sumcient to impel the sleeve K to its fully forward position, its forward end then coming against the collar of the sleeve G. The lower end of the lever M is thereby rocked tor-ward and the stop P moved to its 'rearmost position. The engine is then in its idling conpump rack encounters the stop P (see Figure 8).
The stop is, however, in its rearward position so that further increase of fuel is prevented. The movement of the stop P in a rearward direction, is, of course, limited by the engagement of the sleeve K against the collar :7
Thus, tor running of the vehicle, the fuel supply t exceed a predetermined controlled maximum per cycle; but for starting a supply in excess of such controlled maximum is obtained.
Having fully described my invention what I 10 ative at all engine speeds to control the fuel supply. a fuel injection pump, a control rod controlling the quantity of fuel supplied at each stroke of the pump and connected to said diaphragm in such a manner that as the vacuum decreases the control rod is moved in adirection to increase the fuel supply, a stop to limit the movement of said rod in said direction, said stop remaining in one definite position during all normal running speeds, and an auxiliary centrifugal out of said definite position to allow of the injection of an excess of fuel ior starting and moved back to its definite position for running.
2. In combination with the means claimed in governor by means of which said stop is moved claim 1 said stop being carried on the end of one arm oi a lever pivoted at an intermediate point,
the other arm oithe lever being connected to and operated by the said centrifugal governor.
3. In combination with means as claimed in claim l, a casing by which the centrifugal governor parts are completely enclosed and rendered inaccessible.
US228870A 1937-09-08 1938-09-07 Means for facilitating the starting of internal combustion engines for motor vehicles using a vacuumgoverned fuel injection pump Expired - Lifetime US2229048A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2229048X 1937-09-08

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US2229048A true US2229048A (en) 1941-01-21

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2531243A (en) * 1946-09-19 1950-11-21 Texas Co Fuel-air ratio controller
US2538605A (en) * 1945-03-12 1951-01-16 George M Holley Speed and barometric responsive fuel control for gas turbines
US2569664A (en) * 1947-11-05 1951-10-02 American Bosch Corp Combined mechanical and pneumatic governor
US2719517A (en) * 1951-11-13 1955-10-04 Novi Equipment Co Load sensitive governor
US2917035A (en) * 1956-09-06 1959-12-15 Borg Warner Fuel injector mechanism
US4343276A (en) * 1981-01-16 1982-08-10 Cummins Engine Company, Inc. Turbocharger boost feedback control for engine governor

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2538605A (en) * 1945-03-12 1951-01-16 George M Holley Speed and barometric responsive fuel control for gas turbines
US2531243A (en) * 1946-09-19 1950-11-21 Texas Co Fuel-air ratio controller
US2569664A (en) * 1947-11-05 1951-10-02 American Bosch Corp Combined mechanical and pneumatic governor
US2719517A (en) * 1951-11-13 1955-10-04 Novi Equipment Co Load sensitive governor
US2917035A (en) * 1956-09-06 1959-12-15 Borg Warner Fuel injector mechanism
US4343276A (en) * 1981-01-16 1982-08-10 Cummins Engine Company, Inc. Turbocharger boost feedback control for engine governor

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