US2310269A - Internal combustion engine plant with at least two crankshafts - Google Patents

Internal combustion engine plant with at least two crankshafts Download PDF

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Publication number
US2310269A
US2310269A US424643A US42464341A US2310269A US 2310269 A US2310269 A US 2310269A US 424643 A US424643 A US 424643A US 42464341 A US42464341 A US 42464341A US 2310269 A US2310269 A US 2310269A
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United States
Prior art keywords
internal combustion
combustion engine
cooling
water
gear
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Expired - Lifetime
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US424643A
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Waeber Erwin
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Sulzer AG
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Sulzer AG
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B73/00—Combinations of two or more engines, not otherwise provided for
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S123/00—Internal-combustion engines
    • Y10S123/08—Multiple engine units
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S60/00—Power plants
    • Y10S60/912—Cooling means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/21—Elements
    • Y10T74/2186—Gear casings

Definitions

  • the invention relates to an internal combustion engine plant with at least two crankshafts driving a main shaft through a central gear and consists in that the gear member is provided with heating spaces connected to the cooling-circuit of the intemai combustion engine, in order, by heating the gear member, to eliminate bending stresses in the transmission shafts which are supported partl in the gear member and partly in the internal combustion engine.
  • the heating spaces of the gear member and the cooling spaces of the internal combustion engine are connected in series in such a way that the heated cooling-water flows from the coolingspaces of the engine into the heating spaces of the gear member. Cooling-water may also be withdrawn at an intermediate spot of the coolingspaces of the internal combustion engine and led to the heating spaces of the gear member. In other cases a mixture of cooled water flowing to the engine and heated water flowing from the engine cooling-system can be led to the heating spaces of the gear member in order to be able to adjust the temperature of the gear member by varying the ratio of hot water to cold water. is preferable to introduce the water below into the heating spaces of the gear member and to lead it away above from the heating spaces.
  • Fig. 1 shows a side view
  • Fig. 2 a plan view of a simplified illustration of a construction according to the invention.
  • the method of working of the object of the invention is explained with the help of Fig. 3 (longitudinal section) and Fig. 4 (front view).
  • the double-shaft opposed-piston engines I and 2 (Figs. -1 to 4) form an internal combustion engine set whose crankshafts 3 drive the main shaft 8 through the pinions 4 and the central gearwheel 5.
  • the casing l of the gear has heating spaces 8 and 8 which are in connection with the cooling-medium circuit of the engines.
  • gear casing has practically the same temperature as the engine casing.
  • the transmission shafts are, as can be seen in Figs. 3 and-4, carried in the engine casing l or 2 and also in the gear casing I. If the engine casing I or 2 expands when heated in the course of service, the transmission shafts will be liable to be subjected to bending stresses in the regions l1 between the engines and the gears. If the gear case I is heated in a suitable manner, the gear case also expands, so that bending of the transmission shafts between the engine and the gear at the regions I! will be prevented and bending stresses cannot occur.
  • the cooling-water could for instance be taken from the cooler in two separate parallel circuits. One part of the cooling-water flows then into the cooling spaces of the engines and the other part into the heating spaces of the gear case. Since there is only a small temperature difference between the recooled and the heated cooling-water, the gear case will assume practically the same temperature as the engine casing. Another possibility for leading in the cooling-water is that water is taken from an intermediate spot of the engine cooling-spaces and led to the heating spaces of the gear case. The gear case then takes up practically the mean temperature of the engine casing. Also a mixture of cold water flowing to the engine and hot water from the engine cooling system could be led to the heating spaces of the gear case, in order in this manner to be able to keep the gear case at the mean temperature of the engine casing. Taking the cooling-water from an intermediate spot on the engines and the mixture of cold and hot water for heating the gear case is particularly recommended when water for cooling can be led to the engine cooling-spaces from a pipe, from a pond, or from a lake.
  • the internal combustion engine according to the invention may also have only one or also more than two rows of cylinders. In thearrangement of several rows of cylinders the crankshaft of each row of cylinders can drive the main shaft through the same central gear. Also more than one central gear could be provided for several rows of cylinders.

Description

Feb. 9, 1943. E WAEBER 2,310,269
INTERNAL COMBUSTION ENGINE PLANT WITH AT LEAST TWO CRANKSHAFTS Filed D60. 2'7, 1941 I MM AITORN EY5 Patented Feb. 9,
INTERNAL COMBUSTION WGINE. PLANT WITH AT LEAST TWO CRANKSHAFTS Erwin Waeber, Winterthur, Switnerland, assign):-
to Snlzer Freres, (Sooit Anonyme, Winterthnr,
Small Application December :1, 1941, Serial No. 424,643
In Switzerland August 10. 1941 V v Claims.
The invention relates to an internal combustion engine plant with at least two crankshafts driving a main shaft through a central gear and consists in that the gear member is provided with heating spaces connected to the cooling-circuit of the intemai combustion engine, in order, by heating the gear member, to eliminate bending stresses in the transmission shafts which are supported partl in the gear member and partly in the internal combustion engine.
The heating spaces of the gear member and the cooling spaces of the internal combustion engine are connected in series in such a way that the heated cooling-water flows from the coolingspaces of the engine into the heating spaces of the gear member. Cooling-water may also be withdrawn at an intermediate spot of the coolingspaces of the internal combustion engine and led to the heating spaces of the gear member. In other cases a mixture of cooled water flowing to the engine and heated water flowing from the engine cooling-system can be led to the heating spaces of the gear member in order to be able to adjust the temperature of the gear member by varying the ratio of hot water to cold water. is preferable to introduce the water below into the heating spaces of the gear member and to lead it away above from the heating spaces.
The invention is further explained with the help of the drawing. where Fig. 1 shows a side view and Fig. 2 a plan view of a simplified illustration of a construction according to the invention. The method of working of the object of the invention is explained with the help of Fig. 3 (longitudinal section) and Fig. 4 (front view).
The double-shaft opposed-piston engines I and 2 (Figs. -1 to 4) form an internal combustion engine set whose crankshafts 3 drive the main shaft 8 through the pinions 4 and the central gearwheel 5. The casing l of the gear has heating spaces 8 and 8 which are in connection with the cooling-medium circuit of the engines.
Through the pumps Ill and II (Figs. 1 and 2) the engines I and 2 and the cooler I! receive cooling-water through the distributing piping IS. The heated cooling-water passes out of the collecting pipe ll through pipe I! into the lower part of the heating spaces 8 and 9 of the gear casing 1. already passed through the heating spaces of the gear casing back again to the cooler I2. Between the recooled water in the distributing piping l3 and the heated water in the collecting pipe M The pipe i6 leads the water which has there is only a small temperature difference, so
that the gear casing has practically the same temperature as the engine casing.
The transmission shafts are, as can be seen in Figs. 3 and-4, carried in the engine casing l or 2 and also in the gear casing I. If the engine casing I or 2 expands when heated in the course of service, the transmission shafts will be liable to be subjected to bending stresses in the regions l1 between the engines and the gears. If the gear case I is heated in a suitable manner, the gear case also expands, so that bending of the transmission shafts between the engine and the gear at the regions I! will be prevented and bending stresses cannot occur.
The cooling-water could for instance be taken from the cooler in two separate parallel circuits. One part of the cooling-water flows then into the cooling spaces of the engines and the other part into the heating spaces of the gear case. Since there is only a small temperature difference between the recooled and the heated cooling-water, the gear case will assume practically the same temperature as the engine casing. Another possibility for leading in the cooling-water is that water is taken from an intermediate spot of the engine cooling-spaces and led to the heating spaces of the gear case. The gear case then takes up practically the mean temperature of the engine casing. Also a mixture of cold water flowing to the engine and hot water from the engine cooling system could be led to the heating spaces of the gear case, in order in this manner to be able to keep the gear case at the mean temperature of the engine casing. Taking the cooling-water from an intermediate spot on the engines and the mixture of cold and hot water for heating the gear case is particularly recommended when water for cooling can be led to the engine cooling-spaces from a pipe, from a pond, or from a lake.
The internal combustion engine according to the invention may also have only one or also more than two rows of cylinders. In thearrangement of several rows of cylinders the crankshaft of each row of cylinders can drive the main shaft through the same central gear. Also more than one central gear could be provided for several rows of cylinders.
I claim:
1. Internal combustion engine plant with at least two crankshafts driving a main shaft through a central gear characterised in that the gear member is provided with heating spaces connected to the cooling-circuit of the internal combustion engine, in order, by heating the gear member, to eliminate bending stresses in the transmission shafts which are supported partly in the gear member and partly in the internal combustion engine.
2. Internal combustion engine plant as claimed in claim 1, characterised in that the heating spaces of the gear member and the coolingspaces of the internal combustion engine are connected in series in such a way that the heated cooling-water flows from the cooling spaces of the engine to the heating spaces of the gear member.
3. Internal combustion engine plant as claimed in claim 1, characterised in that cooling-water is withdrawn at an intermediate spot of the cooling-spaces oi the internal combustion engine and led to the heating spaces of the gear member.
4. Internal combustion engine plant as claimed in claim 1, characterised in that a mixture of cooled water flowing to the engine and heated water flowing from the engine cooling-system is led to the heating spaces of the gear member, in order to be able to adjust the temperature of the gear member by varying the ratio of hot water to cold water.
5. Internal combustion engine plant as claimed in claim 1, characterised in that the water is introduced below into the heating spaces of the gear member and led away above from the heat-t ing spaces.
ERWIN WAEBER.
US424643A 1941-08-16 1941-12-27 Internal combustion engine plant with at least two crankshafts Expired - Lifetime US2310269A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2541227A (en) * 1949-04-12 1951-02-13 Eaton Mfg Co Engine heat booster brake
US2683384A (en) * 1949-11-02 1954-07-13 Bradford W Rogers Dual crankshaft power delivery arrangement
US2699642A (en) * 1949-05-10 1955-01-18 Jarvis C Marble Cooling means for hydrodynamic torque converters
US2776651A (en) * 1953-05-11 1957-01-08 Ray H Masters Auxiliary lubricant and vapor heating system for internal combustion engines
US4261172A (en) * 1978-01-24 1981-04-14 Kommanditbolaget United Stirling (Sweden) Ab & Co. Six-cylinder double-acting hot gas engine
US7117827B1 (en) * 1972-07-10 2006-10-10 Hinderks Mitja V Means for treatment of the gases of combustion engines and the transmission of their power
US8707929B2 (en) 2011-07-28 2014-04-29 Pratt & Whitney Canada Corp. Multi-rotor rotary engine architecture

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2541227A (en) * 1949-04-12 1951-02-13 Eaton Mfg Co Engine heat booster brake
US2699642A (en) * 1949-05-10 1955-01-18 Jarvis C Marble Cooling means for hydrodynamic torque converters
US2683384A (en) * 1949-11-02 1954-07-13 Bradford W Rogers Dual crankshaft power delivery arrangement
US2776651A (en) * 1953-05-11 1957-01-08 Ray H Masters Auxiliary lubricant and vapor heating system for internal combustion engines
US7117827B1 (en) * 1972-07-10 2006-10-10 Hinderks Mitja V Means for treatment of the gases of combustion engines and the transmission of their power
US4261172A (en) * 1978-01-24 1981-04-14 Kommanditbolaget United Stirling (Sweden) Ab & Co. Six-cylinder double-acting hot gas engine
US8707929B2 (en) 2011-07-28 2014-04-29 Pratt & Whitney Canada Corp. Multi-rotor rotary engine architecture

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