US1694759A - Thermostatic control of carburetors - Google Patents

Thermostatic control of carburetors Download PDF

Info

Publication number
US1694759A
US1694759A US11268126A US1694759A US 1694759 A US1694759 A US 1694759A US 11268126 A US11268126 A US 11268126A US 1694759 A US1694759 A US 1694759A
Authority
US
Grant status
Grant
Patent type
Prior art keywords
thermostat
engine
valve
fuel
carburetor
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 - Lifetime
Application number
Inventor
Taub Alex
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Motors Liquidation Co
Original Assignee
Motors Liquidation Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Grant date

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M1/00Carburettors with means for facilitating engine's starting or its idling below operational temperatures
    • F02M1/04Carburettors with means for facilitating engine's starting or its idling below operational temperatures the means to facilitate starting or idling being auxiliary carburetting apparatus able to be put into, and out of, operation, e.g. having automatically-operated disc valves
    • F02M1/046Auxiliary carburetting apparatus controlled by piston valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M7/00Carburettors with means for influencing, e.g. enriching or keeping constant, fuel/air ratio of charge under varying conditions
    • F02M7/12Other installations, with moving parts, for influencing fuel/air ratio, e.g. having valves
    • F02M7/133Auxiliary jets, i.e. operating only under certain conditions, e.g. full power

Description

A, TAUB THERMOSTATIC CONTROL OF CARBURETOR Filed May 29, 1.926

abtozmgz lull Patented Dec. 11, 1928.

"IT-ED STATES PAL-TENT; oFncE.

ALEX TAUB, OF DETROIT, MIGHIGAN, ASSIGNORTO GENERAL MOTORS CORPORATION,

015 DETROIT, MICHIGAN, A. CORRORATION OF DELAWARE.

THERMOSTATIG GONTROL 0F UARBURETDRS.

Application filed May 29, 1923. Serial No. 112,381.

This invention relates to internal combustion engines and is concerned with means for automatically changing the character of the fuel mixture in accordance with the needs of the engine.

'lhe invention is intended for use on a steam cooled or constant temperature engine. warming up period a richer mixture is needed. than at normal running temperature. The carburetor is adjusted for the normal engine temperatures. Before. the engine reaches that .normal tem erature the fuel supply is insuificient un ess provision is made for additional supply.

It is an object of the invention to provide means automatically operable to supply a relatively rich mixture during the period in which the engine is warmin up and to leanthe mixture when the engine has reached its normal running temperature.

For the attainment of this object I make use of a thermostat subjected to the heat condition of the chamber containing the cooling medium and provide; a connection between the thermostat and thecarburetor fuel supply means whereby the proportion of fuel in the mixture is automatically.

changed.

The invention is herein described in detail and is illustrated in the accompanying drawing: I

Figure 1 shows an internal combustion engine of the constant temperature type in side elevation, the fuel control of this invention being incorporated therein.

, Figure 2 is a side elevation of a carburetor having parts broken away and in section.

Referring by reference characters to the drawing, numeral 1 represents the internal combustion engine as a whole. The oil pan is shown at, 2 and 3 re resents the head mounted on the cylinder lock. Numeral 4 is theexhaust manifold and 5 represents the intke manifold. The carburetor is shown at i Within the head 3 and contained within the chamber receiving the chamber from the cooling medium which surrounds the cylinders is a thermostat 9. This thermostat is of well known bi-metallic type. Extending to the outside of the head 3 is a stem 11 having an arm 13. Under the action of the It is well known that during the thermostat stem 11 rotates and swings the arm 13. I

Referring more particularily to Figure 2 the carburetor is shown as having a float chamber '15, a throttle valve chamber 17 and an air inlet 19. There is also a valve 21 which may be opened by the suction of the motor against the tension of the spring 23. At the lower side of the carburetor there is Shown plug 25 throu h which passes the needle valve 27. The e1 reaches the needle valve by passage 29 from the float chambers 15. At t e left of-the needle valve 27 there is shown a second plug 31 which has'a circumferential groove 33 and a radial passage 35, the latter communicating with an axial passage 37. Extending through this plug is a second needle valve 39 cooperating with a seat 41 in a tube 43 secured within-an opening in the plu 31. The stem of the needle valve is enlarged and fits snugly where it passes out through the plug 31, packing 45 and a cap 47 being su plied to make the joint tight. The end of t e needle valve stem is threaded as at 4.9 where it is engaged by a collar 51. The collar is engaged by the forked ends of a lever 53 ivoted at 55 to an arm 57 extended down from the bottom of the carburetor. A link 59 is connected between the arm 13 of the thermostat and the'lever 53.

By the mechanism described it will be seen that the movement of the thermostat controls the secondary valve 39. When the engine is cold and an additional supply of fuel is needed for the mixture the condition of the thermostat is-such that it, through the arm 13, link 59 and lever 53, opens the secondary fuel valve. When, however, the engine warms up and reaches that temperature for which the carburetor is adjusted the thermostat agailr acts through parts 13, 59 and 53 to close the secondary needle valve. It will be understood that the thermostat is located within that part of the cooling chamber where it is sub ected to the hot vapors arising from the cooling medium WlllOll surrounds the engine cylinders.

I claim: 1. In a constant temperature engine, a chamber for cooling medium therefor, a thermostat therein, a carburetor having primary and secondary means to supply uel mixture to said engine, mechanism connecting said thermostat and the secondary supplying means for said carburetor where- ''by the thermostat determines the character of the mixture.

2.111 a constant temperature engine, a chamber for cooling medium therefor, a thermostat therein, a carburetor having means to supply fuel mixture to said engine,

said means including a primary fuel valve 10 and a secondary fuel valve, operating means between said thermostat and said secondary fuel valve for controlling thesupply of fuel through'said valve in accordance with the temperature of the medium to which said 15 thermostat is subjected. v i

In testimony whereof I afiix my signature.

ALEX TAUB

US1694759A 1926-05-29 1926-05-29 Thermostatic control of carburetors Expired - Lifetime US1694759A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US1694759A US1694759A (en) 1926-05-29 1926-05-29 Thermostatic control of carburetors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1694759A US1694759A (en) 1926-05-29 1926-05-29 Thermostatic control of carburetors

Publications (1)

Publication Number Publication Date
US1694759A true US1694759A (en) 1928-12-11

Family

ID=22345285

Family Applications (1)

Application Number Title Priority Date Filing Date
US1694759A Expired - Lifetime US1694759A (en) 1926-05-29 1926-05-29 Thermostatic control of carburetors

Country Status (1)

Country Link
US (1) US1694759A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2503261A1 (en) * 1981-04-03 1982-10-08 Gurtner Sa Automatic choke for two-stoke engine - has thermostat on head controlling choke feed to intake manifold
EP0647778A1 (en) * 1993-10-08 1995-04-12 NIPPON THERMOSTAT Co., Ltd. Automatic choking system for carburetor
US20070289562A1 (en) * 2006-03-09 2007-12-20 John Zajac Constant temperature internal combustion engine and method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2503261A1 (en) * 1981-04-03 1982-10-08 Gurtner Sa Automatic choke for two-stoke engine - has thermostat on head controlling choke feed to intake manifold
EP0647778A1 (en) * 1993-10-08 1995-04-12 NIPPON THERMOSTAT Co., Ltd. Automatic choking system for carburetor
US20070289562A1 (en) * 2006-03-09 2007-12-20 John Zajac Constant temperature internal combustion engine and method
US7434551B2 (en) 2006-03-09 2008-10-14 Zajac Optimum Output Motors, Inc. Constant temperature internal combustion engine and method

Similar Documents

Publication Publication Date Title
US3246886A (en) Charge forming device enrichment mechanism
US4570584A (en) General-purpose internal combustion engine with vertical crank shaft
US3851633A (en) Fuel system for an internal combustion engine
US4218999A (en) Inline fuel heater
US4312317A (en) Carburetor
US1318068A (en) Fuel-heating system.
US2058204A (en) Internal combustion engine
US2936746A (en) Water heated intake manifold
US3500806A (en) Preheating inlet air during engine idling
US7246794B2 (en) Carburetor throttle valve control system
US1966345A (en) Hydrogen generator for internal combustion engines
US2213683A (en) Fuel feeding mechanism
US3190623A (en) Automatic choke for carburetor
US1933365A (en) Carburetor air control
US3621825A (en) Exhaust gas recirculation control valve
US2380374A (en) Internal-combustion engine charge forming apparatus
US2617399A (en) Temperature regulating apparatus for internal-combustion engines
US2574670A (en) Carburetor
US2979047A (en) Automatic choke for small carburetors
US2124778A (en) Carburetor
US2977948A (en) Automatic carburetor primer
US4036188A (en) Carburetor equipped with a cooling system
US1968553A (en) Choker valve means
US2287593A (en) Carburetor
US3333832A (en) Air valve carburetors