US2704055A - Air-supply means for internalcombustion engines - Google Patents

Air-supply means for internalcombustion engines Download PDF

Info

Publication number
US2704055A
US2704055A US353046A US35304653A US2704055A US 2704055 A US2704055 A US 2704055A US 353046 A US353046 A US 353046A US 35304653 A US35304653 A US 35304653A US 2704055 A US2704055 A US 2704055A
Authority
US
United States
Prior art keywords
air
supply means
duct
internalcombustion engines
chambers
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
US353046A
Inventor
Downing Eric William
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.)
ZF International UK Ltd
Original Assignee
Lucas Industries Ltd
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 Lucas Industries Ltd filed Critical Lucas Industries Ltd
Application granted granted Critical
Publication of US2704055A publication Critical patent/US2704055A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/104—Intake manifolds
    • F02M35/116—Intake manifolds for engines with cylinders in V-arrangement or arranged oppositely relative to the main shaft
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10242—Devices or means connected to or integrated into air intakes; Air intakes combined with other engine or vehicle parts
    • F02M35/10295—Damping means, e.g. tranquillising chamber to dampen air oscillations

Definitions

  • This invention relates to the air-supply means for internal combustion engines of the kind comprising two or more groups of cylinders.
  • the object of the present invention is to enable the said difliculty to be avoided or reduced in a simple and convenient manner.
  • An air supply means in accordance with the invention comprises the combination of a single air inlet duct, and two or more pulsation damping chambers in communication with the exit end of the said duct, the said chambers being adapted to effect communication between the inlet duct and the air intake manifolds of the engine.
  • Figure l is a part sectional inverted plan, Figure 2 a longitudinal section, and Figure 3 a cross section on the line 3-3 ( Figure 2), illustrating one embodiment of the invention.
  • Figures 4 and 5 are side elevations taken at right angles to each other illustrating to a smaller scale the embodiment of the invention shown in Figures 1 to 3 applied to an internal combustion engine having two groups of cylinders.
  • the construction there shown comprises an air inlet duct a which may contain a throttle valve b of the conventional butterfly type.
  • a cap adapted to minimise hissing of the air entering the duct may be mounted over the entrance end of the duct.
  • To the outlet end of the duct a is secured a transverse tube c which is divided internally by a pan of annular 2,704,055 Patented Mar. 15, 1955 partitions d to form an air distribution chamber e and a pair of pulsation damping chambers f.
  • the ends of the tube 0 are closed by covers g which are held in position by a tie rod h.
  • each partition d is attached a tube i by which air is conveyed from the distribution chamber to the interior of the associated damping chamber, the tube i being arranged to extend along the greater part of the length of the said chamber.
  • the damping chambers are provided with lateral exit ducts j for connection to the air intake manifolds o of the engine p.
  • each damping chamber is provided with a permeable partition k of cylindrical or other convenient form which serves as an additional means for suppressing air pulsations.
  • This partition may be made from wire gauze, and it may also serve as an air filter. Also it is preferably corrugated as shown in Figure 3.
  • the partitions k surround the tubes i, and air conveyed by these tubes passes through the partitions k before entering the ducts i.
  • the ends of the partitions are carried by frustro-conical parts m secured to the parts d, g.
  • a flared tube It may be arranged at the exit end of the inlet duct a for conveying air into the distribution chamber 6 with a minimum of turbulance.
  • Air supply means for an internal combustion engine of the kind specified comprising the combination of a single air inlet duct, and two or more pulsation damping chambers in communication with the exit end of the said duct, the said chambers being adapted to effect communication between the inlet duct and the air intake manifolds of the engine.
  • Air supply means as and for the purpose claimed in claim 1, in which each damping chamber is provided with an air-permeable partition.

Description

March 15, 1955 E. w. DOWNING AIR-SUPPLY MEANS FOR INTERNAL-COMBUSTION ENGINES 2 Sheets-Sheet 1 Filed May 5, 1953 5 I120 eaioz March 15, 1955 w. DOWNING 2,704,055
AIR-SUPPLY MEANS FOR INTERNAL-COMBUSTION ENGINES Filed May 5, 1953 2 Sheets-Sheet 2 Z 22 ,2; elation United States Patent AIR-SUPPLY MEANS FOR INTERNAL- COMBUSTION ENGINES Eric William Downing, Birmingham, England, assignor to Joseph Lucas (Industries) Limited, Birmingham, England Application May 5, 1953, Serial No. 353,046
Claims priority, application Great Britain May 5, 1952 2 Claims. (Cl. 123-52) This invention relates to the air-supply means for internal combustion engines of the kind comprising two or more groups of cylinders.
When it is required to supply air to the cylinders from a common air inlet difliculty is experienced in ensuring equal supplies of air to each group, particularly when the induction strokes occur at uneven time intervals.
The object of the present invention is to enable the said difliculty to be avoided or reduced in a simple and convenient manner.
An air supply means in accordance with the invention comprises the combination of a single air inlet duct, and two or more pulsation damping chambers in communication with the exit end of the said duct, the said chambers being adapted to effect communication between the inlet duct and the air intake manifolds of the engine.
In the accompanying drawings:
Figure l is a part sectional inverted plan, Figure 2 a longitudinal section, and Figure 3 a cross section on the line 3-3 (Figure 2), illustrating one embodiment of the invention.
Figures 4 and 5 are side elevations taken at right angles to each other illustrating to a smaller scale the embodiment of the invention shown in Figures 1 to 3 applied to an internal combustion engine having two groups of cylinders.
Referring to the drawings, the construction there shown comprises an air inlet duct a which may contain a throttle valve b of the conventional butterfly type. A cap adapted to minimise hissing of the air entering the duct may be mounted over the entrance end of the duct. To the outlet end of the duct a is secured a transverse tube c which is divided internally by a pan of annular 2,704,055 Patented Mar. 15, 1955 partitions d to form an air distribution chamber e and a pair of pulsation damping chambers f. The ends of the tube 0 are closed by covers g which are held in position by a tie rod h. To each partition d is attached a tube i by which air is conveyed from the distribution chamber to the interior of the associated damping chamber, the tube i being arranged to extend along the greater part of the length of the said chamber. The damping chambers are provided with lateral exit ducts j for connection to the air intake manifolds o of the engine p. Preferably each damping chamber is provided with a permeable partition k of cylindrical or other convenient form which serves as an additional means for suppressing air pulsations. This partition may be made from wire gauze, and it may also serve as an air filter. Also it is preferably corrugated as shown in Figure 3. The partitions k surround the tubes i, and air conveyed by these tubes passes through the partitions k before entering the ducts i. For supporting the partitions k centrally on the tube 0, the ends of the partitions are carried by frustro-conical parts m secured to the parts d, g.
If desired a flared tube It may be arranged at the exit end of the inlet duct a for conveying air into the distribution chamber 6 with a minimum of turbulance.
When the engine comprises more than two groups of cylinders, corresponding additional pulsation chambers are connected to the distribution chamber e.
By the use of pulsation damping chambers between a common air inlet duct and the air-intake manifolds of the engine, it has been found that substantially equal supplies of air to each group of cylinders with consequent equalisation of the power developed in each group can be ensured in a satisfactory manner. Also effective silencing of the air inflow is obtained, thus rendering unnecessary the use of separate silencers.
Having thus described my invention what I claim as new and desire to secure by Letters Patent is:
1. Air supply means for an internal combustion engine of the kind specified, comprising the combination of a single air inlet duct, and two or more pulsation damping chambers in communication with the exit end of the said duct, the said chambers being adapted to effect communication between the inlet duct and the air intake manifolds of the engine.
2. Air supply means as and for the purpose claimed in claim 1, in which each damping chamber is provided with an air-permeable partition.
No references cited.
US353046A 1952-05-05 1953-05-05 Air-supply means for internalcombustion engines Expired - Lifetime US2704055A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2704055X 1952-05-05

Publications (1)

Publication Number Publication Date
US2704055A true US2704055A (en) 1955-03-15

Family

ID=10913786

Family Applications (1)

Application Number Title Priority Date Filing Date
US353046A Expired - Lifetime US2704055A (en) 1952-05-05 1953-05-05 Air-supply means for internalcombustion engines

Country Status (1)

Country Link
US (1) US2704055A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2877622A (en) * 1954-11-18 1959-03-17 Associated British Oil Engines Heat engines
US3177854A (en) * 1963-03-05 1965-04-13 Alfa Romeo Spa Resonance induction device for internal-combustion engines
US3530648A (en) * 1967-04-18 1970-09-29 Citroen Sa Andre Combined air-filter and induction silencer

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2877622A (en) * 1954-11-18 1959-03-17 Associated British Oil Engines Heat engines
US3177854A (en) * 1963-03-05 1965-04-13 Alfa Romeo Spa Resonance induction device for internal-combustion engines
US3530648A (en) * 1967-04-18 1970-09-29 Citroen Sa Andre Combined air-filter and induction silencer

Similar Documents

Publication Publication Date Title
US2455493A (en) Exhaust manifold
US8935917B2 (en) Partially integrated exhaust manifold
ES487056A1 (en) Conduit system for introducing intake gases in internal combustion engines
JPS60206929A (en) Air sucking apparatus of multi-cylinder internal combustion cylinder
GB1263979A (en) Air-cooled internal combustion engine with soundproofing casing
GB1353231A (en) Carburation system for multicylinder internal combustion engines
US4510896A (en) Multi-cylinder combustion engine intake manifold
US2704055A (en) Air-supply means for internalcombustion engines
US3303832A (en) High output engines
US2654355A (en) Four-stroke internal-combustion engine
US2857893A (en) Induction system
JPS6285163A (en) Exhaust emission control device for v-type engine
US2862572A (en) Cleaner silencer assembly
US1439506A (en) Silencer of internal-combustion engines
US1784831A (en) Humidifying device for internal-combustion engines
US1828774A (en) Exhaust manifold for internal combustion engines
US2489585A (en) Baffle type muffler with fluid mingling
US1785108A (en) Engine
US1985943A (en) Engine
US1546262A (en) Silencer for multicylinder internal-combustion engines
US2175428A (en) Intake manifold
US2767699A (en) Induction system for internal combustion engine
US1512311A (en) Induction system of internal-combustion engines
US2814178A (en) Internal combustion engines exhaust apparatus
US2713333A (en) Dual compound carburetor intake manifold