Rok 2014

• Compact satellite hydraulic unit

  Publikacja

  • P. Śliwiński
  • P. Patrosz

  - Mechines Technologies Materials - Rok 2014

  The article describes the design and operation of a prototype hydraulic unit. It is based on an inversed kinematics, satellite pump in which the body rotates around the shaft. The pump is placed inside the electric motor. Thanks to that the compact and low mass construction was achieved. Thanks to new commutation unit with enlarged channels, lower pressure losses were obtained. The article presents the construction and results...

• Influence of the position of the swash plate rotation axis on the volumetric efficiency of the axial pistons pumps

  Publikacja

  • P. Załuski

  - Mechines Technologies Materials - Rok 2014

  The article describes the influence of the position of the swash plate axis of rotation on the size of the dead space and the volumetric efficiency of the axial pistons pump. Superposition of the two motions have been proposed - the rotation of the swash plate with respect to axis intersecting the axis of rotation of the pump shaft and the shifts of swash plate yielding a result of the rotation axis offset effect. In the article...

• Plate heat exchanger with porous structure for potential use in ORC system

  Publikacja

  • J. Wajs
  • D. Mikielewicz
  • E. Fornalik-Wajs

  - Mechines Technologies Materials - Rok 2014

  The experimental analysis of passive heat transfer intensification in the case of plate heat exchanger has been carried out. The passive intensification was obtained by a modification of the heat transfer surface, which was covered by a metallic porous microlayer. The experiment was accomplished in two stages. In the first stage the commercial stainless steel gasketed plate heat exchanger was investigated, while in the second one...

• Satellite pump and motor

  Publikacja

  • P. Śliwiński

  - Mechines Technologies Materials - Rok 2014

  The article describe the design and operation of a prototype of satellite pump and a prototype of satellite motor. In both machines, the operating mechanism consists of a non-circular gear with external teeth (rotor), non-circular gear with internal teeth (curvature), and ten gear wheels which cooperate with the rotor and the curvature. The differences between the commutation unit in the pump and the commutation unit in the motor...

Rok 2013

• Practical aspects of design and operation of amphibious craft for rescue purposes

  Publikacja

  • M. Gerigk
  • T. Abramowicz-Gerigk
  • Z. Burciu

  - Mechines Technologies Materials - Rok 2013

  The paper presents the selected problems of design and operation of amphibious craft for rescue purposes. The result of research on the amphibious rescue units allowed formulating the general conclusions with respect to the proper selection of the main design parameters, program of model tests and full scale trials for the amphibious craft. The most important design problems related to the water characteristics are presents and...