The sun. [volume] (New York [N.Y.]) 1833-1916, 1914-01-04
WORKINGS OF THE RAYFIELD.
ny u. 4. BATES.
Find"iscn 4 krOpf Manufacturing
Company.

IA DCH discussion has attended the
M building and marketing OF car
J, bureters. Technical treatses have
been written on the various makes
and great attention has been given by
th'lr authors 10 the somewhat involved
task OF showing wherein the various
models differ one from the other. Very
few, however. have been able to show
Just wherein lie the elements OF carbu-
rotor efficiency. Engineers are agreed
thot motor ear efficiency depends more
upon the carbureter than upon any other
o." element that goes to make UP the
automobile.
The qualifications Of a good carbureter
va" ease in starting. getaway, speed.
po0 or, ability to throttle down. wide fiexl-
billy of operation under all weather con-
di'ons, freedom from trouble and, most
Of all, economy. Probably the most
widely discussed carbureter requisite is
economy, but economy with n sacrifice
o. efficiency is absolutely useless. No
nan will sacrifice the other elements OF
carbureter service for economy because
n doing so he would be skimpinR the
.'service and pleasure he expects to receive
from his motor car for a matter Of a
few dollars, and this is not the tendency
o. The motor car driver
II carbureter manufacturer can show
u" highest development in every other
factor and is also able to show economy
then he has added the last requirement
| 81 both motor car manufacturer and
motor car driver. Carbureters can be
divided generally into two classes,
fameiy. those with the constant air
DrdlNe and the mechanical air valve. and
second those having a constant air valve
ana automatic air valve. The Rayfield.
however. has all three. tho constant air
valve. the mechanical air valve and the
automatic air valve.
Briefly and simply the operation of the
Rtyiicld is as follows The gasolene
Enters the mixing chamber through the
noodle valve. In the small mixing cham
Der above tho needle IL meets the air
supplied from the constant air opening.
j rs now drawn into the larger mixing
chamber. where il is met by a current
o. air coming from the automatic air
valve and which strikes the mixture Just
below the opening through which II has
vn'ored causing whirling motion. This
breaks up the small particles or globules
OF gas. The mechanical air valve At the
has" Of the mixing chamber acts with
ard ls opened by the throttle and third
current Of air rushing In from this valve
trl',os the revolving mixture with .
tgnSF"rse motion, completely breaking
\ W. the remaining liquid gas. which then
AZ wells through the manifold to the
"nder, Should we omit either the auto
nGaiG ar valve or the mechanical air
valve We would lose most OF all the addi-
b onal air supply, but we would also lose
The perfect mixture which In gained by
tree CURRENTS OF air meeting simuita-
h"ously and from different directions.
1he noat construction Of the Rayneld
II designed to be such that II will handle
either pressure or gravity feed and will
in' food under pressure, The Rayheld
not Il carbureter OF hairline adjust
mont When II ~ set properly to pro-
SoH"" power, speed and economy there Ia
~ extremely wide margin ON either side
OF tine efficiency line" We strongly
teoommend hot water jacketed car
suseter and a hot air connection. Ths
sasolens on The market to-day 10 Of such