DE1926996U - STARTING SETUP. - Google Patents

Description

KOLN-N I EH L-H EN RY-FORD-STRA SSE

TELEPHONE COLLECTING NO. KDLN 77011. AT EXTENSION DIAL 7701 UNO HOUSE PHONE NUMBER «

TELEGRAMS FOROMOTOR ■ TELEPHONE 0888149) Γ 1

COLOGNE,

YOUR SIGN:

OUR MARK: FK-712 PS-2 Sp Ll

HOUSE CALL:

LEGAL DEPARTMENT

Patent application STARTING DEVICE

The invention relates to an automatic starting device for carburetors for internal combustion engines and, more particularly, to one Device for heating the temperature-sensitive element of an automatic starting device.

The air flap of an automatic starting device is opened between and moved in the closed position via a temperature-sensitive element in accordance with the change in temperature. The temperature of the temperature-sensitive element should have a corresponding relationship to the temperature of the intake system of the engine in order to achieve the Adjust the air flap according to the requirements of the engine. The temperature sensitive element is generally used during the Operation of the engine is heated to a match between the Temperature of the motor "and that of the temperature-sensitive element to back up. Although various methods of heating the temperature-sensitive Element have been applied, none has yet proven to be completely satisfactory.

ft% l £% riadM * rtbint4M SdwheniprJ t * «· * M **« m »Mm « te weteW vw the word- -2- dB originally used ^ iWW UpfcirO »··». DIs reehflk * »Explanation of the deviation is nloW checked,« v *. ι,. **. · *? "* eingfcMcn üwatassn i- ^ VA"&i> in ton to "to * hti. Ste ta'tm Ipdmtft "OtK * Nsefwe" * i, v "; r «ct ihciisn Iwtatösses gubü ^ rBfifrei £ inga <eh« n wetrfan. At Antm , WokopiM Mil PHlW-xa were delivered to you at the Äbltefiw prices. DeuSee »Patent Office, © buhuil« «« »!»

Chairman of the supervisory hotel: Erhard Vltger

Board of Directors: John S. Andrews, Chairman · Roberto, Loyton, Vice Chairman

Hans Grandl · Jules A. Gutzeit · Archie R. McCordell · Horts Schmld »« Toni SäimOdeW · Mox Ueber representative ·. Otto H. Hadftteln. James i. Toohey Jr.

KOlN-NIgHl

31att 2 for writing from an

In one heating method, the temperature-sensitive element is in direct heat-exchanging contact with the engine's exhaust system, or the temperature-sensitive element is surrounded by air that has been heated by contact with the exhaust system. The exhaust system of an engine heats up very quickly after starting a cold engine. A starting device heated by the exhaust system therefore has the very desirable property of opening the air flap quickly in cold weather.

However, a starting device heated by the exhaust system also has an undesirable property. When the engine is stopped, the exhaust system cools down faster than the rest of the engine. The resulting cooling of the temperature-sensitive element therefore closes the air flap, although the engine is still warm through and through. This premature closing of the air flap results in an unnecessarily rich mixture when the engine is restarted and leads to an increase in fuel consumption. These conditions occur particularly when the temperature-sensitive element is arranged on the carburetor and is indirectly heated. Although it is well known to isolate the temperature-sensitive element, these conditions still occur.

The undesirably short closing time of a starting device heated by the exhaust system can be extended by using the cooling liquid of the engine to heat the temperature- sensitive element. The heating of the starting device via the cooling liquid of the engine can be done by arranging the temperature-sensitive element in direct heat exchange with part of the cooling jacket of the engine or by arranging a liquid jacket around the temperature-sensitive element, if this is arranged on the carburetor. The coolant of an engine retains its heat much longer after a warm engine has been stopped, and a starter device heated by the coolant results in the desired delayed closing time of the air flap.

PK-712 / January 27, 1964 ->

KOLN-NLEHL

Sheet.? .... for writing from

Although a starting device heated by the coolant the results in the desired delayed closing time of the air flap when the warm engine is stopped, it has an undesirably long opening time the air damper, At low outside temperatures, a considerable amount of time elapses before the liquid in the cooling system reaches its operating temperature achieved. Under these conditions, the temperature of the coolant does not correspond to the fuel-air mixture required by the engine and the air flap remains closed longer than necessary.

It is therefore the basic object of the present invention to provide a To provide improved apparatus for heating a starting device which has the desirable characteristics of both types of heating, heating via the exhaust system and the heating via the coolant, combined. ned.

Although it has been suggested earlier, the two types of heating to combine, a corresponding starting device that fulfills this task has not been developed. The absence of a satisfactory, The starting device heated by the cooling and exhaust system can be explained by the difficulties encountered in arranging all of them required parts occur. It is extremely desirable to be temperature sensitive Element to be arranged directly on the carburetor, so that the automatic starter and the carburetor form a single component. This Arrangement of the temperature-sensitive element avoids at the same time extensive Linkage arrangements that would require constant maintenance and observation of correct adjustment. It's been difficult until now, eiö temperature-sensitive element, which is arranged on the carburetor, satisfactory to be heated by the engine coolant. As mentioned, a liquid jacket had to be placed around the temperature-sensitive element will. Hoses and hose connections were needed to carry the cooling liquid from the cooling jacket of the engine to the heating jacket of the temperature sensitive Element to lead. . '■

The object of the present invention extends to the creation a simple device for heating a temperature-sensitive egg

FK-712 / January 27, 1964 -4

KOLN-NIEHL

Leaf . ¹ A .... for writing from to

mentes an automatic starting device that works directly on the carburetor is arranged.

An automatic starting device according to the invention can be used in each Internal combustion engine can be used, which has a liquid cooling and an exhaust system. The automatic start facility is on The engine's carburetor is located on the intake system. They are actuators provided as a temperature-sensitive element to adjust an air flap according to the temperature. An air duct leads heated air through part of the exhaust system to the temperature-sensitive air Element. A liquid line carries the liquid from the cooling system to a point that is adjacent to the temperature sensitive Element lies.

Another essential feature of the present invention is one flexible line that is attached to the housing of the temperature-sensitive element and guides heated coolant through the motor. The touch between the flexible cable and the housing of the temperature-sensitive Element provides the necessary heat conduction to the temperature-sensitive element.

Further objects and advantages of the present invention are made in context the following description with the aid of the enclosed Drawings more obvious.

Fig. 1 is part of a perspective view

one provided with the present invention

Combustionnxfcorsj

Fig. 2 is an exploded view of the temperature sensitive. borrowed part of the automatic starting device shown in FIG.

In Fig. 1, an internal combustion engine is designated by 11 «As from the drawing As can be seen, the internal combustion engine 11 is in a motor vehicle

FK-712 / January 27, 1964 -5-

i «ν- \ y \ ·» :: .- ■■ * -: IT-TC - ^ ■ »Τϊ'Ττ» * «* ?!« * ^

KOLN-NIEHl

latt 5 for writing from an

arranged where the use of automatic starting devices \

is common. The engine 11 consists of a cylinder block 12 and j Cylinder head 13 (only 1 cylinder head is shown). An exhaust manifold

14 is arranged on one side of the cylinder heads 13. The motor 11 has {

an intake system consisting of an intake pipe 15 and a carburetor 16 "

consists. \

ι The engine 11 is liquid cooled, and therefore has a cooling jacket \ in the cylinder block 12 and in the cylinder heads I] S. The cooling liquid is \ (not shown) by a pump moves through the "cooling jackets of the cylinder block and the cylinder heads 12 {. 13 [

The coolant heated by the engine is passed through a line 17 which carries the cooling |

defects of the two cylinder heads IJ are connected by a cooler (not:

shown), whereby the coolant is cooled down, before it is?

circulates again in the motor. Heated liquid can be discharged from line 17 via j;

a flexible hose 18 through a heating device 19 for heating the I.

Car interior are guided. A return hose 21 leads the |

Fluid from heater 19 back to engine cooling system, \

The parts mentioned so far are of conventional design. !

\ An air damper 22 of the carburetor 16 is disposed in the intake passage. The 'f,

Air flap 22 is controlled depending on the temperature via an automatic "f.

table starter operated, generally designated 2j5 [■

and is shown in detail in FIG. The automatic starting device 23 i

consists of.a housing with a part 24 and a cover 25 · The part! ^:

24 is connected to the carburetor 16 via a number of lugs 27. In this |

Housing a temperature-sensitive element is arranged * one of which \

End is attached to the cover 25. The other end of the temperature sensitive P

1st element via the rod 28 to the damper 22 is connected to the \

Air flap between open and closed position depending on |

from the temperature of the engine to move. The temperature sensitive element {

and the control of the air% kl »ppi 8 &" * ίη |

Design and are therefore not shown in detail.

FK-712 / 27.I.I964, -6-

KOLN-NIEHL

31att 6. for writing from an

The inside of the auto starter housing is over
an air duct 29 connected to a heat exchanger 31 on the exhaust manifold . The air flowing through the heat exchanger 31
is via line 29 into the housing of the automatic starting device

directed. Air is circulated through the vent of part 24 of :

Housing after the intake side of the engine allows. The descended ; set pressure in the housing 24 causes the air flow in a known manner and
Wise.

Although the exhaust heat quickly heats the temperature sensitive element via the heat exchanger 31 on the exhaust manifold when the engine is started,;

the temperature-sensitive element cools down again quickly as soon as the '

Motor is stopped. In order to prevent the temperature from cooling down early !

To prevent sensitive element , heat is transferred to the coolant j

fed in the manner as described below: How !

already mentioned, the liquid that is heated in the cooling jacket of the engine ;

was guided to the heating device 19 via a flexible hose 18. The ]

heated liquid, which is passed through the flexible hose 18, )

is used to heat the temperature-sensitive element, in-;

which part of the hose 18 on the cover 25 is arranged opposite one another '

will. Since one end of the temperature-sensitive element on the cover 25 be j

is fixed, a reliable heat transfer is guaranteed. j

A sheet metal clamp 32 has a bulge to accommodate the hose \

18th The fastening means, which are shown in detail in Pig 2;

attach the sheet metal clamp 32 and the hose 18 to the cover 25 and the t

Cover 25 on the housing part 24 of the automatic starting device «The loading 1

have fastening devices, a sheet metal bracket 33, which jj the lid

25 includes and lies against a flange of the same. Fasteners \

34 protrude with their threaded ends 35 through the openings 36 ^;

in the sheet metal clamp 33 · The ends 35 of the fastening elements "*> k are ί

received in corresponding openings of the part 24. Shoulders of loading:;

#e «tisu» g80i «m« nte 54 amfind de © öawijRÄea SS &&# 8 <WA against Äii lifehkiam- }

mer 33 and press the cover 25 to the part 24. The fasteners "

PK-712 / 27.1.1964 "■ '·. · -7-

KOtN-NlEHl

ilatt X .... for writing from an

34 are tightened through slots 37 using a normal screwdriver. The outer ends of the fastening elements Jk are provided with bores 33. Screws 39 lead through openings 41 in the sheet metal clamp 32 and _f are screwed into the bores 38 in order to press the sheet metal clamp J> 2 and the hose 18 against the cover 25.

It has been found that the heated liquid in the flexible hose 18 transfers enough heat to the cover 25 to keep the temperature of the temperature-sensitive element at a point that keeps the air flap 22 in the open position until the motor has cooled down enough that he needs a start enrichment of the mixture. The effect of the thermosiphon in the engine's cooling system is that coolant circulates through the hose 18 even though the engine was shut down a considerable time ago.

It will be understood that the invention is not limited to the exact construction shown and described, but that a wide variety of configurations and improvements can be made without departing from the scope of the inventive concept .

FK-712

/ Claims

Claims (1)

Automatic starting device for internal combustion engines with liquid cooling and one on the suction system of the Engine «arranged carburetor, which has a housing, which absorbs a temperature-sensitive element, one end of which is connected to the cover of this QehKuse and the other end of which the air flap over a linkage on the one hand according to the temperature of the heated over the exhaust system and on the other hand according to the temperature of the heated over the coolant cover of the housing of a closed to open position, d a d u r ο h g e ke n indicates that the The deodorant (25) of the housing is heated via the KUhI liquid through a clamp (32) in heat « exchanging contact with the cover (25) of the housing (24) of the temperature-therapeutic element held part of one of the flexible KUhIflUssigskoitesohläuohe (19) of the motor «takes place. ;? ' L ■ · ' Starter device according to claim 1, d.a. by e β * indicates that the cover (25) with the Housing (24) of the temperature sensitive element Fixing elements (> 4) connected, the gla on their outer floors 08) the """""'-*" - ¹ ' - ■ ^^^ tf®® * ® (59) the Klanmer (JS) . PK - 712 / March 9, 1965