US3669082A - Internal combustion engine having a cooling-air blower - Google Patents

Internal combustion engine having a cooling-air blower Download PDF

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Publication number
US3669082A
US3669082A US35476A US3669082DA US3669082A US 3669082 A US3669082 A US 3669082A US 35476 A US35476 A US 35476A US 3669082D A US3669082D A US 3669082DA US 3669082 A US3669082 A US 3669082A
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US
United States
Prior art keywords
blower
cylinder head
engine
internal combustion
fan
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
US35476A
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English (en)
Inventor
Ernst Hatz
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.)
Motorenfabrik Hatz GmbH and Co KG
Motorenfabrik Hatz KG
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Motorenfabrik Hatz GmbH and Co KG
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
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Publication of US3669082A publication Critical patent/US3669082A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P1/00—Air cooling
    • F01P1/02—Arrangements for cooling cylinders or cylinder heads, e.g. ducting cooling-air from its pressure source to cylinders or along cylinders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/12—Filtering, cooling, or silencing cooling-air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P5/00—Pumping cooling-air or liquid coolants
    • F01P5/02—Pumping cooling-air; Arrangements of cooling-air pumps, e.g. fans or blowers

Definitions

  • This invention relates to an internal combustion engine, and in particular it relates to a cooling-air blower constructed in combination with an internal combustion engine such as a single-cylinder diesel engine or; the like.
  • Cooling-air blowers in particular axial-flow blowers of generally known constructions, comprise a jacket or casing which, by means of turbine blades or support webs, is welded or screwed to the bearing housing enclosing the bearing for the fan to form a unitary construction.
  • these blowers are usually provided with a support arm which is con nected to the crankcase of the engine.
  • a seat is also fixed to the crankcase, the above-described blower being held on said seat by bands. Arrangements of this'kind are inherently of complicated construction, which not only increases manufacturing costs but also occupies considerable space.
  • the purpose of the invention is to overcome the disadvantages of the known constructions,- and to provide a simplified blower arrangement which requires a minimum of parts and space, and which is also economical in manufacture and weight.
  • the screws in the cylinder head for the inlet and exhaust manifolds are preferably used as holding means.
  • the blower housing is made. of two shell-halves which are screwed together. Moreover,'it is of advantage to arrange these shellhalves so that they also serve to define the cooling-air passages around the cylinder head and cylinder.
  • the shellhalves are connected together in a plane'passing through the cylinder axis and are screwed together at a plurality of locations,'in particular, around the periphery of the fan.
  • An arrange'ment in which the blower is an axial blower produces an advantageous arrangement in which the mounting bolt for the fan is arranged at right angles to the cylinder axis and is pressed into the body of the cylinder head.
  • mounting of the blower on the engine is simplified by the fact that the fan, its drive pulley and its mounting bolt are constructed as a unit which is mounted in the cylinder head by fixing the mounting bolt in its bore at the appropriate position on the cylinder head.
  • It is another object of this invention to provide a simplified blower arrangement for an internal combustion engine comprising a fan having a mounting bolt fixed onto the engine and including a pair of shell-halves connected together and forming a blower housing for the fan.
  • blower comprises a fan including a mounting bolt and drive pulley mounted together as a unit, the mounting bolt being connected directly to the engine.
  • FIG. 1 is a longitudinal sectionthrough' an internal combustion engine and blower constructed in accordance with the present invention.
  • FIG. 2 is a partial .plan, partial horizontal sectional view taken along line A-A of FIG. 1.
  • FIG. 3 is a side view taken in the direction of the arrow Y in FIG. 1.
  • FIG. 4 is a side view taken in the direction of the arrow X in FIG. 1.
  • the illustrated internal combustion engine is a single cylinder diesel engine of known form comprising a crankcase 10, a cylinder 12 arranged with its axis vertical and a cylinder head 14 all of which are connected together in usual fashion, not shown. Both the cylinder and cylinder head are formed with horizontal cooling ribs, 12a and 14a respectively, around their peripheries. Moreover, the cylinder head 14 includes a number of cooling-air channels 14b which extend horizontally therethrough.
  • An injection nozzle 16 is mounted in the 'cylinder head 14, and is directed towards the piston which is arranged in the combustion chamber, but which has been omitted for clarity.
  • inlet and outlet valves 18, 20 are arranged in the cylinder head in known fashion and are operated by rockers 22, 24 from the camshaft.
  • the passageways in the cylinder head 14 which lead to the valves are designated 14c and 14d.
  • Inlet and outlet manifolds 26, 28 are connected to these passageways, the inlet manifold 26 by means of two screws 26a, and the outlet manifold by means of two screws 28a.
  • the screws 26a and 28a are fixed to corresponding flanges Me and 14f, respectively, on the cylinder head 14.
  • the boss 38b is also shaped at its outer end to form a V-belt pulley 380, by means of which the fan 38 is driven by a belt (not shown) from a drive pulley, for example, on the crankshaft.
  • Fan 38 is surrounded by a housing designed to produce a high blowing efficiency, this housing comprising two thin-walled shell-halves 40 and 42 which are shaped as mirror images of one another and are connected toa narrow rim around the fan 38 by screws 44, 46.
  • a turned-over rim 40a, 42a on the inlet side of the shell-halves 40, 42 ensures rigidity of these parts of the housing.
  • the shell-halves 40, 42 are sidewardly extended in the region in which they form the blower housing and are shaped to serve as cooling-air deflectors which surround the cooling ribs 12a on the cylinder and the cooling ribs 14a on the head, being held together by a screw 48 at the side of the engine remote from the blower, so as to leave an outlet slit for the cooling-air (FIG. 4) between the edge portions 40b and 42b,
  • the lower edges 40c and 420 of the shell-halves 40, 42 extend down to the region of the top a of the crankcase 10 and said halves include, in the region of the manifolds 26 and 28 respectively, a large through-flow aperture 40d and 42d and the two smaller openings 40e and 42s respectively.
  • the two shell-halves can be fixed between the manifolds 26 and 28 and the cylinder head by means of the two screws 26a and 28a.
  • the diameters and positions of the openings 40a and 42e are chosen exactly and the latter preferably serve, together with the bolts of the screws 26a and 28a as fitting means to ensure the required exact drive setting of the blower housing 40a, 42a relative to the fan 38 and to maintain the required minimum clearance between these parts after the shell-halves 40, 42 have been fitted to the cylinder head 14.
  • a screw 52 could be screwed into the cylinder 12 in the region of each lower edge 40c, 42c to prevent the lower regions of the shell-halves from flapping. This screw is shown in dotted linesin FIGS. 1 and 2.
  • the cooling-airas indicated by arrows in the drawings is sucked in at the forward end of the blower and is fed by the rotating vanes 38a of the fan 38, being blown through the shell-halves 40, 42 partly by way of the channels 14b and along the cooling ribs 14a of the cylinder and partly along the cooling ribs 12a of the cylinder to cool these parts and, after cooling, issues through the opposite side by way of the slit between edges 40b and 42b.
  • the position of the blower and itsdiameter are so chosen that the parts of the cylinder head and of the cylinder at a thermal maximum are effectively cooled by the air blow.
  • the blower has a minimum of parts, requires minimum preparation and, moreover, takes up minimum space in the engine. By tightening or loosening a number of screws, the whole housing, together with the associated ducting, can be easily removed or re-mounted respectively,
  • the fan is made in a conventional manner as an injection moulding in aluminum or similar material and, so that the inner bore only of its boss requires finishing.
  • the bolts for mounting the fan can be easily mass produced in the required size, and the bores in the cylinder head to receive the same can be made during construction without further expense so as to incur no further cost.
  • the shell-halves can either be made as aluminum mouldings or pressings, being light in weight and low in price. Alternatively, the shell-halves could be made in a plastics material of an appropriate rigidity.
  • the fan 38 can be made as a single unit with the mounting parts 32 and 30 so that mounting on the engine is simply a case of pressing,
  • blower mounted on said internal combustion engine, said blower including a fan formed about a mounting bolt, said mounting bolt connected to said cylinder head, and said blower further comprising a blower housing in the form of two shell-halves rigidly connected together and arranged on the engine to direct the air from the fan by the engine to cool the latter, said shell-halves being connected together by screws along a plane which passes through the axis of said cylinder, said screws being applied at a plurality of positions along said plane, including a plurality of positions in the area where the housing forms the blower housing surrounding the fan, said holding means of said engine element being arranged for simultaneously holding said blower housing on the cylinder head.
  • blower fan is constructed as an axial blower fan having a plurality of radially extending vanes and the said mounting bolt for the fan is arranged substantially at right angles to the axis of the cylinder and is fixed in the body of the cylinder head.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
US35476A 1969-05-07 1970-05-07 Internal combustion engine having a cooling-air blower Expired - Lifetime US3669082A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691923300 DE1923300A1 (de) 1969-05-07 1969-05-07 Brennkraftmaschine mit Kuehlluft-Geblaese

Publications (1)

Publication Number Publication Date
US3669082A true US3669082A (en) 1972-06-13

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ID=5733500

Family Applications (1)

Application Number Title Priority Date Filing Date
US35476A Expired - Lifetime US3669082A (en) 1969-05-07 1970-05-07 Internal combustion engine having a cooling-air blower

Country Status (5)

Country Link
US (1) US3669082A (enrdf_load_stackoverflow)
DE (1) DE1923300A1 (enrdf_load_stackoverflow)
ES (1) ES379233A1 (enrdf_load_stackoverflow)
FR (1) FR2047234A5 (enrdf_load_stackoverflow)
GB (1) GB1296273A (enrdf_load_stackoverflow)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3911876A (en) * 1973-03-06 1975-10-14 List Hans Air-cooled single-cylinder internal combustion engine
US4364355A (en) * 1979-07-18 1982-12-21 Hitachi, Ltd. Electronically controlled fuel supply apparatus for internal combustion engine
US4633824A (en) * 1984-03-30 1987-01-06 Kubota Limited Cooling means for the squish part of an air cooling overhead valve engine
US4744432A (en) * 1985-01-28 1988-05-17 Yamaha Hatsudoki Kabushiki Kaisha Cooling apparatus for vehicle engine
US4982705A (en) * 1990-02-21 1991-01-08 Tecumseh Products Company Cam pulley and cylinder head arrangement for an overhead cam engine
US5094217A (en) * 1989-11-02 1992-03-10 Yamaha Hatsudoki Kabushiki Kaisha Air fuel injection system
DE19650401A1 (de) * 1995-12-05 1997-06-12 Compagnucci Spa Zwangsluftgekühlter Motor für Modellautos
US5755194A (en) * 1995-07-06 1998-05-26 Tecumseh Products Company Overhead cam engine with dry sump lubrication system
US6196170B1 (en) * 1996-12-27 2001-03-06 Dolmar Gmbh Driving device for a lawn trimmer
US6223713B1 (en) 1996-07-01 2001-05-01 Tecumseh Products Company Overhead cam engine with cast-in valve seats
CN113864035A (zh) * 2017-03-09 2021-12-31 Tvs电机股份有限公司 一种用于内燃机的冷却系统及其方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2168640C1 (ru) * 1999-12-27 2001-06-10 Календаров Ибрагим Ахмедович Система воздушного охлаждения двигателя внутреннего сгорания
RU2253740C2 (ru) * 2003-04-01 2005-06-10 Прасолов Николай Сергеевич Двигатель внутреннего сгорания

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3911876A (en) * 1973-03-06 1975-10-14 List Hans Air-cooled single-cylinder internal combustion engine
US4364355A (en) * 1979-07-18 1982-12-21 Hitachi, Ltd. Electronically controlled fuel supply apparatus for internal combustion engine
US4633824A (en) * 1984-03-30 1987-01-06 Kubota Limited Cooling means for the squish part of an air cooling overhead valve engine
US4744432A (en) * 1985-01-28 1988-05-17 Yamaha Hatsudoki Kabushiki Kaisha Cooling apparatus for vehicle engine
US5094217A (en) * 1989-11-02 1992-03-10 Yamaha Hatsudoki Kabushiki Kaisha Air fuel injection system
US4982705A (en) * 1990-02-21 1991-01-08 Tecumseh Products Company Cam pulley and cylinder head arrangement for an overhead cam engine
US5988135A (en) * 1995-07-06 1999-11-23 Tecumseh Products Company Overhead vertical camshaft engine with external camshaft drive
US5755194A (en) * 1995-07-06 1998-05-26 Tecumseh Products Company Overhead cam engine with dry sump lubrication system
US5979392A (en) * 1995-07-06 1999-11-09 Tecumseh Products Company Overhead cam engine with integral head
US6032635A (en) * 1995-07-06 2000-03-07 Tecumseh Products Company Overhead cam engine with integral head
DE19650401A1 (de) * 1995-12-05 1997-06-12 Compagnucci Spa Zwangsluftgekühlter Motor für Modellautos
US6223713B1 (en) 1996-07-01 2001-05-01 Tecumseh Products Company Overhead cam engine with cast-in valve seats
US6196170B1 (en) * 1996-12-27 2001-03-06 Dolmar Gmbh Driving device for a lawn trimmer
CN113864035A (zh) * 2017-03-09 2021-12-31 Tvs电机股份有限公司 一种用于内燃机的冷却系统及其方法

Also Published As

Publication number Publication date
GB1296273A (enrdf_load_stackoverflow) 1972-11-15
DE1923300A1 (de) 1970-11-26
FR2047234A5 (enrdf_load_stackoverflow) 1971-03-12
ES379233A1 (es) 1972-09-01

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