US1666871A - Hydraulic-brake solution - Google Patents

Hydraulic-brake solution Download PDF

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Publication number
US1666871A
US1666871A US140686A US14068626A US1666871A US 1666871 A US1666871 A US 1666871A US 140686 A US140686 A US 140686A US 14068626 A US14068626 A US 14068626A US 1666871 A US1666871 A US 1666871A
Authority
US
United States
Prior art keywords
solution
hydraulic
boiling point
brake
parts
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
US140686A
Inventor
William G Calkins
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.)
Old Carco LLC
Original Assignee
Chrysler Corp
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
Application filed by Chrysler Corp filed Critical Chrysler Corp
Priority to US140686A priority Critical patent/US1666871A/en
Application granted granted Critical
Publication of US1666871A publication Critical patent/US1666871A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M111/00—Lubrication compositions characterised by the base-material being a mixture of two or more compounds covered by more than one of the main groups C10M101/00 - C10M109/00, each of these compounds being essential
    • C10M111/02—Lubrication compositions characterised by the base-material being a mixture of two or more compounds covered by more than one of the main groups C10M101/00 - C10M109/00, each of these compounds being essential at least one of them being a non-macromolecular organic compound
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M101/00—Lubricating compositions characterised by the base-material being a mineral or fatty oil
    • C10M101/04—Fatty oil fractions
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M105/00—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound
    • C10M105/08—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound containing oxygen
    • C10M105/10—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound containing oxygen having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M105/12—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound containing oxygen having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms monohydroxy
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/02—Hydroxy compounds
    • C10M2207/021—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/02—Hydroxy compounds
    • C10M2207/021—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2207/0215—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms used as base material
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/40—Fatty vegetable or animal oils
    • C10M2207/401—Fatty vegetable or animal oils used as base material
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/40—Fatty vegetable or animal oils
    • C10M2207/402—Castor oils
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/40—Fatty vegetable or animal oils
    • C10M2207/404—Fatty vegetable or animal oils obtained from genetically modified species
    • C10M2207/4045—Fatty vegetable or animal oils obtained from genetically modified species used as base material
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/12—Inhibition of corrosion, e.g. anti-rust agents or anti-corrosives
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/08—Hydraulic fluids, e.g. brake-fluids

Definitions

  • This invention relates to o STATES PATENT OFFICE.
  • Cert tem may be exposed to heated parts of the vehicle, so as to absorb heat therefrom, as for example, one of brake operating mechanism may be adjacent the muliler or motor.
  • brake operating mechanism may be adjacent the muliler or motor.
  • used on frictional heat causes vaporization of the ordinary solution, creating a pressure in which locks the brakes.
  • pheric pressure cause changes in the pres sure when aused. It is therefore an invention to provide a solution having a high boiling point.
  • Another object of this invention is to provide a solution having lubricating qualities which will have no corrosive effect on the parts of the system.
  • any of the higher alcohols or their deriva tives such as butyl, iso butyl, amyl, iso amyl,
  • boiling point at atmospheric pressure higher than 80 centigrade The boiling points of these alcohols range from 82 centigrade, iso propyl, t0 137.8 centigrade, normal amyl.
  • CH Normal butyl alcohol
  • a hydraulic solution composed of approximately iifty percent castor oil and a proximately fifty percent butyl alcohol.
  • a hydraulic solution com proximately fifty percent casto posed of apr oi series having a boiling point not less than 117 C. at atmospheric pressure WILLIAM G. CALKINS.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Lubricants (AREA)

Description

Patented Apr. 1-7, 1928.
UNITE WILLIAM G. CALKINS,
TION, F HIGHLAND PARK, MI
No Drawing.
This invention relates to o STATES PATENT OFFICE.
0F DETROIT, MICHIGAN, ASSIGNOR TO CHRYSLER COICPORA- CHIGAN, A CORPORATION OF DELAWARE.
HYDRAULIC-BRAKE soLU'rIoN.
Application filed October 9, 1926. Serial No. 140,686.
a low vapor pressure. high boiling point solution and more particularly to a solution adapted for use in a closed hydraulic system such as is com- 5 monly tem.
In closed hydraul type which operate used in a closed hydraulic brake sysic brake systems of the on automoblle vehicles,
it is diflicult to maintain a constant pressure within the system to vaporization solution used. Cert tem may be exposed to heated parts of the vehicle, so as to absorb heat therefrom, as for example, one of brake operating mechanism may be adjacent the muliler or motor. used on frictional heat causes vaporization of the ordinary solution, creating a pressure in which locks the brakes. pheric pressure cause changes in the pres sure when aused. It is therefore an invention to provide a solution having a high boiling point.
Certain hydraulic operating parts made of steel, their connecting lines usually are made of copPertubing, and where flexibility is required, rub ber hose is commonly used. The operating parts require lubrication and to lubricate these parts by the solution used in the system, it is necessary at all temperatures, and condensatlon of the due ain portions of the systhe lines leading to the This and other heat, from the brake drum,
the entire system Changes in atmoslow boiling point solution is important object of this to provide a solution which has no corrosive effect on other parts of the system such Light mineral oils as rubber and copper.
are objectionable in that they attack the rubber and cause deterioration thereof.
Another object of this invention is to provide a solution having lubricating qualities which will have no corrosive effect on the parts of the system.
but due to its viscosity when used without dilution, it is not desirable for exceedingly low temperatures.
viscosity and as bef It therefore becomes necessary to dilute the castor oil with a liquid of less ore mentioned one hav- -prophyl, iso prophyl, et cetera, have a brake'systems have their mg approximately ing a high boiling point and no effect on the parts of the system.
Any of the higher alcohols or their deriva tives, such as butyl, iso butyl, amyl, iso amyl,
boiling point at atmospheric pressure higher than 80 centigrade. The boiling points of these alcohols range from 82 centigrade, iso propyl, t0 137.8 centigrade, normal amyl.
Normal butyl alcohol, CH (CH (LI-L0H, has a boiling point of 117 centigrade and when used to dilute the castor oil a noncorrosive solution is produced which has lubricating qualities and vaporizes only at a temperature above unusual conditions.
\Vhile amyl alcohol, CH (GH CH OH,
has aboiling point of 137.8 centigrade it causes the sulphur in the rubber connections of the system to attack the copper tubing forming a black copper sulphide corrosion within the system. Through a series of tests butyl alcohol has been found most desirable as it has less action on the parts of the system, its boiling point is sufficiently high to prevent vaporization under extraordinary condition, and it is a more commercial product.
It has been found that a solution consistof castor oil and of one of these higher alcohols, particularly butyl alcohol, makes a desirable solution. \Vhere butyl alcohol is used, the solution has a. boiling point of 117 centigrade 01 2 2 Fahrenheit as compared to 76 centigrade, 170 Fahrenheit,when ordinary denatured alcohol is used; the latter being undesirable.
It is to be understood that while butyl a1- cohol has been found to be" the most satisfactory to meet the requirements for a solution used in a sytsem of the class described,
other derivatives of the higher alcohols may .be used when the parts of the system are not 2. A hydraulic solution composed of approximately iifty percent castor oil and a proximately fifty percent butyl alcohol.
composed of cas alcohol having a C. at atmospheric 3. A hydraulic solution 5 tor oil and :1- monohydric boiling point above 80 pressure.
4. A hydraulic solution com proximately fifty percent casto posed of apr oi series having a boiling point not less than 117 C. at atmospheric pressure WILLIAM G. CALKINS.
US140686A 1926-10-09 1926-10-09 Hydraulic-brake solution Expired - Lifetime US1666871A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US140686A US1666871A (en) 1926-10-09 1926-10-09 Hydraulic-brake solution

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US140686A US1666871A (en) 1926-10-09 1926-10-09 Hydraulic-brake solution

Publications (1)

Publication Number Publication Date
US1666871A true US1666871A (en) 1928-04-17

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2834733A (en) * 1949-04-01 1958-05-13 Douglas Aircraft Co Inc Hydraulic fluid and lubricant composition
US2894911A (en) * 1957-12-16 1959-07-14 Douglas Aircraft Co Inc Fire-resistant hydraulic fluid

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2834733A (en) * 1949-04-01 1958-05-13 Douglas Aircraft Co Inc Hydraulic fluid and lubricant composition
US2894911A (en) * 1957-12-16 1959-07-14 Douglas Aircraft Co Inc Fire-resistant hydraulic fluid

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