Expander system
AssigneeVolvo Car Corporation
InventorOla Rolandson
Life of this patent
Estimating the term…
Abstract
An expander system for recovering waste heat, a waste heat recovery system including such an expander system, a vehicle including such a waste heat recovery system and a method for manufacturing such an expander system. The expander system includes a shaft and a coupling portion including a first sealing unit and a second sealing unit. The shaft is inserted through the coupling portion to an expanding unit. The first sealing unit and the second sealing unit are arranged facing one another along the shaft. The first sealing unit and the second sealing unit are configured to seal the shaft in an axial direction relative to the shaft.
Claims14
An expander system for recovering waste heat, comprising:
- a shaft;
- and
- a coupling portion comprising a first sealing unit and a second sealing unit,
- the shaft being inserted through the coupling portion to an expanding unit,
- the first sealing unit and the second sealing unit being arranged facing one another along the shaft,
- the first sealing unit and the second sealing unit being configured to seal the shaft in an axial direction relative to the shaft, and
- the coupling portion comprising a through-hole arranged in a perpendicular direction relative to the shaft between the first sealing unit and the second sealing unit, the through-hole being fluidly connected to a pressure inlet of the expanding unit via a channel.
A waste heat recovery system, comprising:
- an expander system comprising a shaft and a coupling portion comprising a first sealing unit and a second sealing unit, the shaft being inserted through the coupling portion to an expanding unit, the first sealing unit and the second sealing unit being arranged facing one another along the shaft, the first sealing unit and the second sealing unit being configured to seal the shaft in an axial direction relative to the shaft, and the coupling portion comprising a through-hole arranged in a perpendicular direction relative to the shaft between the first sealing unit and the second sealing unit, the through-hole being fluidly connected to a pressure inlet of the expanding unit via a channel;
- and
- a generator,
- the shaft of the expander system being configured to be connected to the generator, and
- the generator being configured to convert an energy transferred from the shaft to a mechanical and/or electrical energy.
A method for manufacturing an expander system for recovering waste heat, comprising the following steps:
- providing a shaft;
- providing a coupling portion comprising a first sealing unit and a second sealing unit;
- inserting the shaft through the coupling portion to an expanding unit;
- and
- arranging the first sealing unit and the second sealing unit facing one another along the shaft,
- the first sealing unit and the second sealing unit being configured to seal the coupling portion in an axial direction relative to the shaft, and
- the coupling portion comprising a through-hole arranged in a perpendicular direction relative to the shaft between the first sealing unit and the second sealing unit, the through-hole being fluidly connected to a pressure inlet of the expanding unit via a channel.
Dependencies are inferred from the claim text.