| 摘要 |
PROBLEM TO BE SOLVED: To easily mount reservoirs absorbing the expansion and contraction of operating oil caused by the change of temperature, without using a special member in a hydraulic coupling device of a power transmission for a four-wheel drive vehicle. SOLUTION: The reservoirs 55L, 55R are enclosed inside through-holes 27d of left and right rotor shafts 37L, 37R supporting rotors 35L, 35R of a lateral pair of vane pumps PL, PR. The reservoirs 55L, 55R are composed of rubber- made cylindrical elastic bodies 56 and blocking members 57, and the blocking members 57 are fixed to the outer end parts of the through-holes 27d of the rotor shafts 37L, 37R by press-fitting or other means to simultaneously attain blocking of the openings of the cylindrical elastic bodies 56, fixing of the reservoirs 55L, 55R into the through-holes 27d, and the prevention of outflow of operating oil from the through-holes 27d.
|
