WO1994019588A1 - Structure d'entrainement de pompe a eau destinee a un moteur a combustion interne - Google Patents

Structure d'entrainement de pompe a eau destinee a un moteur a combustion interne Download PDF

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Publication number
WO1994019588A1
WO1994019588A1 PCT/JP1994/000248 JP9400248W WO9419588A1 WO 1994019588 A1 WO1994019588 A1 WO 1994019588A1 JP 9400248 W JP9400248 W JP 9400248W WO 9419588 A1 WO9419588 A1 WO 9419588A1
Authority
WO
WIPO (PCT)
Prior art keywords
water pump
pulley
fan
diameter
cooling fan
Prior art date
Application number
PCT/JP1994/000248
Other languages
English (en)
Japanese (ja)
Inventor
Hidetada Fukushima
Original Assignee
Kabushiki Kaisha Komatsu Seisakusho
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 Kabushiki Kaisha Komatsu Seisakusho filed Critical Kabushiki Kaisha Komatsu Seisakusho
Publication of WO1994019588A1 publication Critical patent/WO1994019588A1/fr

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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
    • F01P5/00—Pumping cooling-air or liquid coolants
    • F01P5/02—Pumping cooling-air; Arrangements of cooling-air pumps, e.g. fans or blowers
    • F01P5/04—Pump-driving arrangements
    • 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
    • F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
    • F01P5/12—Pump-driving arrangements

Definitions

  • the present invention relates to a water pump drive structure for a water-cooled internal combustion engine. Background technology
  • the water pump drive structure has a simple, low-cost structure with the water pump and cooling fan installed coaxially. .
  • Fig. 4 shows a partial cross-sectional side view of a conventional general internal combustion engine in which a water pump and a cooling fan are installed coaxially.
  • a water pump pulley 16 is attached to the tip of the impeller drive shaft of the water pump 1, and a cooling fan 13 is attached to the water pump pulley 16 via an adapter 17.
  • the water pump bouly 16 is driven via a V-belt 14 by a crank pulley 19 attached to the end of a crank shaft 18 to drive the water pump 1 and the cooling fan 13 at the same rotational speed. It is driving.
  • the diameter of the cooling fan 13 is much larger than the diameter of the impeller (not shown) of the water pump 1. Therefore, when the diameter of the water pump pulley 16 and the diameter of the crank pulley 19 are set so that the rotation speed of the cooling fan 13 can reach the rotation speed that reaches the maximum permissible peripheral speed of the cooling fan 13
  • the rotation speed of the water pump 1 which is driven coaxially and at the same rotation speed, is usually relatively lower than the allowable rotation speed of the water pump 1, and the performance of the water pump 1 can be maximized.
  • a large water pump 1 must be installed, and as a result, a large and costly water pump 1 is required, and the weight and mounting space are increased. Problems such as an increase in (2)
  • large, low-speed rotating fans have been adopted in order to reduce the noise of the cooling fan 13.
  • the large-sized cooling fan 1 In recent years, large, low-speed rotating fans have been adopted in order to reduce the noise of the cooling fan 13. However, the large-sized cooling fan 1
  • a water pump drive structure for an internal combustion engine includes a water pump pulley and a fan pulley driven from a crank pulley via a belt, and an impeller drive shaft that drives an impeller of the water pump on the water pump bully.
  • the cooling fan is fixed to the fan wheel, and the fan pulley is attached to the impeller drive shaft so as to freely rotate.
  • the diameter of the water pump pulley that drives the water pump and the diameter of the fan pulley that drives the cooling fan are set independently.
  • the crank burley is a crank pulley in which the diameter of the mounting portion of the belt that drives the water pump pulley and the diameter of the mounting portion of the belt that drives the fan pulley are independently set.
  • the rotation direction of the water pump pulley that drives the water pump and the rotation direction of the family that drives the cooling fan are set independently.
  • the water pump pulley and the fan pulley have a coaxial structure and can rotate freely with each other, so that the water pump pulley and the fan pulley can be rotated at different rotation speeds. Therefore, by setting the diameters of the water pump pulley and the fan pulley independently of each other, it is possible to achieve a rotation speed corresponding to the performance required for the water pump and the cooling fan. In addition, since the diameter of the belt mounting part of the crank pulley can be set to a different diameter, the water pump pulley and the pump This is effective when the required performance cannot be met with only one diameter.
  • the cooling fan The direction of rotation is changed, and a suction system or a blowing system, which is a cooling system for an internal combustion engine such as an engine, can be selected as necessary.
  • FIG. 1 is a cross-sectional view of a main part of a water pump drive structure for an internal combustion engine according to the present invention
  • FIG. 2 is an explanatory view of how to attach a belt of a water pump pulley of an application example according to the present invention
  • FIG. FIG. 4 is an explanatory view of how to attach a belt of a fan pulley of an application example according to the present invention.
  • FIG. 4 is a side view of a partial cross section of a water pump driving structure of an internal combustion engine in which a water pump and a cooling fan according to the related art are coaxially installed. It is. BEST MODE FOR CARRYING OUT THE INVENTION
  • FIG. 1 is a sectional view showing a water pump driving structure of an internal combustion engine located coaxially with a cooling fan.
  • outer rings 3b and 4b of bearings 3 and 4 are press-fitted into stepped holes provided in housing 2 of water pump 1, and impellers are inserted into inner rings 3a and 4a of bearings 3 and 4.
  • a drive shaft 6 is fitted into the drive shaft 6, and the impeller drive shaft 6 is rotatable with respect to the housing 2.
  • the impeller drive shaft 6 has a water pump 1 at one end.
  • a water pump bully 7 is press-fitted and fixed in front of the bearing 3, and an adapter 10 is mounted in front of the water pump pulley 7 via the bearings 8 and 9.
  • bearings 8 and 9 are composed of inner rings 8a and 9a and outer rings 8b and 9b, respectively, and the impeller drive shaft 6 and the adapter 10 can rotate freely with each other.
  • a fan pulley 12 and a cooling fan 13 are fastened to the adapter 10 by bolts 11.
  • a V-belt 14 and a V-belt 15 for driving are attached to the water pump pulley 7 and the fan pulley 12, respectively.
  • the diameters of the fan pulleys 12 and the water pump pulley 7 can be set arbitrarily, in this embodiment, the diameter of the fan pulleys 12 is set to be larger than the diameter of the water pump pulley 7. I have.
  • the V-belt may be a general V-belt or a poly-V-belt (P01y—VeeBelt) to which a belt used in an internal combustion engine is applicable.
  • a commonly used belt other than the V belt may be used.
  • the operation of the water pump drive structure for an internal combustion engine having such a configuration is performed as follows.
  • the water pump pulley 7 is driven by a crank pulley (not shown) via a V-belt 14, so that the impeller 5 fixed to the impeller drive shaft 6 is the same as the water pump pulley 7.
  • the fan pulley 12 is also driven and rotated by the crank pulley (not shown) via the V-belt 15, but the diameter of the fan pulley 12 is set to be larger than the diameter of the water pump pulley 7. I have. Therefore, since the rotation speed is inversely proportional to the diameter, the rotation speed of the cooling fan 13 is smaller than the rotation speed of the impeller 5. That is, it is possible to obtain the maximum performance of the water pump 1 by setting the impeller 5 to high-speed rotation, for example, the allowable rotation speed of the water pump 1. On the other hand, noise can be reduced by setting the cooling fan 13 to low-speed rotation.
  • the diameters of the water pump pulley 7 and the fan pulley 12 can be set independently, even if the water pump 1 and the cooling fan 13 are the same part, they have different capacities, for example, When the cooling capacity of the water pump 1 is small and the cooling capacity of the cooling fan 13 is required to be large, the diameter of the water pump bully 7 should be relatively large, and the diameter of the fan pulleys 12 should be relatively large. The requirement is achieved by reducing the value to a small value, that is, by adjusting the rotation ratio. Moreover, there is no need to significantly change the water pump drive structure, and the invention can be applied to a limited installation space.
  • the mounting diameters of the V belts 14 and 15 are set respectively. However, even if the diameter is different, the same operation and effect as described above can be obtained.
  • the diameters of the water pump pulley 7 and the fan pulley 12 and the diameter of the portion to be attached to the crank pulley are set in combination. It is also possible to make 13 a lower speed rotation.
  • FIGS. 1 This application example is a case where the rotation direction of the cooling fan is reversed in the above embodiment.
  • a V-belt 14 for driving is attached to the crank pulley 19, the tension pulley 21 and the water pump pulley 7, and the arrow 23 Driven in the direction.
  • the tension pulley 21 is a general pulley (not shown). It is movable in the direction 22 by a simple tension adjusting device, and the V belt 14 is adjusted to a predetermined tension.
  • Fig. 2 showing the water pump pulley side
  • the tension pulley 21 is a general pulley (not shown). It is movable in the direction 22 by a simple tension adjusting device, and the V belt 14 is adjusted to a predetermined tension.
  • a driving V-belt 15 is attached to the crank pulley 19, idler pulley 28, fan pulley 12, tension pulley 21 and idler pulley 26. Driven in the direction of arrow 27 by 1 9. The movement of the tension pulley 21 in the direction 25 adjusts the V-belt 15 to a predetermined tension.
  • the V belt 15 is preferably a belt that can be driven on both sides, such as a poly V belt.
  • the water pump pulley 7 and the fan pulley 12 rotate in opposite directions. Accordingly, referring to FIG. 1, the impeller 5 of the water pump 1 rotates in the same direction as in the above embodiment, but the cooling fan 13 rotates in the opposite direction to that of the above embodiment.
  • the cooling method for the engine such as the suction method or the blowing method, so that the cooling required for the water pump 1 and cooling fan 13 is required. It is easy to respond to performance such as performance and noise level, and can meet various required specifications with few types of parts. Industrial applicability
  • the present invention by driving the water pump and the cooling fan at desired rotational speeds and rotational directions, performances corresponding to demands such as high cooling performance and low noise can be obtained, and further, significant structural changes are made. Since it can be set to different rotation speeds without the need to perform this, it is useful as a water pump drive structure for an internal combustion engine that enables effective use of installation space.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

Une structure d'entraînement de pompe à eau, destinée à un moteur à combustion interne, répondant à des exigences telles qu'une forte capacité de refroidissement et un faible bruit, en entraînant une pompe à eau et un ventilateur de refroidissement à des vitesses de rotation et dans des sens de rotation désirés et en pouvant se régler à différentes vitesses de rotation, sans modification majeure de la construction d'ensemble, ce qui permet d'utiliser efficacement le volume disponible pour son installation. Cette structure d'entraînement se caractérise par une poulie de pompe à eau (7) et une poulie de ventilateur (12) entraînées par une poulie de vilebrequin, par un arbre d'entraînement (6) de rotor de pompe à eau (1) relié à la poulie de pompe à eau (7), par un ventilateur de refroidissement (13) relié à la poulie de ventilateur (12), poulie qui est montée sur l'arbre d'entraînement de rotor (6) en roue libre, et par des diamètres de la poulie (7) chargée d'entraîner la pompe à eau (1) et de la poulie (12) chargée d'entraîner le ventilateur de refroidissement (13) qui sont déterminés de façon indépendante.
PCT/JP1994/000248 1993-02-22 1994-02-18 Structure d'entrainement de pompe a eau destinee a un moteur a combustion interne WO1994019588A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP5/11755U 1993-02-22
JP1175593 1993-02-22

Publications (1)

Publication Number Publication Date
WO1994019588A1 true WO1994019588A1 (fr) 1994-09-01

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1994/000248 WO1994019588A1 (fr) 1993-02-22 1994-02-18 Structure d'entrainement de pompe a eau destinee a un moteur a combustion interne

Country Status (1)

Country Link
WO (1) WO1994019588A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4441712A1 (de) * 1994-11-23 1996-06-05 Arntjen Gerd Verfahren zum Aufbau eines Dachaufbaus und Bauelementensatz für einen Dachaufbau
WO2006056249A1 (fr) * 2004-11-19 2006-06-01 Ebm-Papst St. Georgen Gmbh & Co. Kg Ensemble comprenant un ventilateur et une pompe
WO2018229670A1 (fr) * 2017-06-15 2018-12-20 Baruffaldi S.P.A. Groupe à fonctionnement hybride mixte pour la recirculation et le refroidissement du fluide de refroidissement d'un véhicule
WO2019061643A1 (fr) * 2017-09-29 2019-04-04 苏州驿力机车科技股份有限公司 Module de refroidissement et système de refroidissement intelligent de véhicule
IT201900002313A1 (it) * 2019-02-18 2020-08-18 Baruffaldi Spa Pompa di ricircolo di un fluido di raffreddamento di motori termici con comando motore elettrico

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5099328U (fr) * 1974-01-18 1975-08-18
JPS55135119U (fr) * 1979-03-16 1980-09-25

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5099328U (fr) * 1974-01-18 1975-08-18
JPS55135119U (fr) * 1979-03-16 1980-09-25

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4441712A1 (de) * 1994-11-23 1996-06-05 Arntjen Gerd Verfahren zum Aufbau eines Dachaufbaus und Bauelementensatz für einen Dachaufbau
DE4441712C2 (de) * 1994-11-23 2001-07-26 Arntjen Gerd Bauelementensatz für einen Dachaufbau
WO2006056249A1 (fr) * 2004-11-19 2006-06-01 Ebm-Papst St. Georgen Gmbh & Co. Kg Ensemble comprenant un ventilateur et une pompe
WO2018229670A1 (fr) * 2017-06-15 2018-12-20 Baruffaldi S.P.A. Groupe à fonctionnement hybride mixte pour la recirculation et le refroidissement du fluide de refroidissement d'un véhicule
WO2019061643A1 (fr) * 2017-09-29 2019-04-04 苏州驿力机车科技股份有限公司 Module de refroidissement et système de refroidissement intelligent de véhicule
IT201900002313A1 (it) * 2019-02-18 2020-08-18 Baruffaldi Spa Pompa di ricircolo di un fluido di raffreddamento di motori termici con comando motore elettrico

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