Three-way solenoid valve for actuating flow control valves in a temperature control system
OwnerThomas J. Hollisinventor
Life of this patent
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Abstract
A pressurization system for controlling actuation of flow control valves in a temperature control system is disclosed. The pressurization system includes a housing mounted to an internal combustion engine. A three-way solenoid valve is mounted to the housing and is adapted to control flow of pressurized fluid into and out of an electronic engine temperature control valve for controlling flow of temperature control fluid. The fluid flow out of the solenoid valve is channeled either along an external line to the electronic engine temperature valve or through internal channels in the engine to an oil reservoir.
Claims11
A solenoid assembly for controlling flow of hydraulic fluid from an engine to an electronic engine temperature control valve, the solenoid assembly comprising:
- a housing adapted to be mounted to an engine, the housing including first and second fluid channels formed in the housing and spaced axially apart from one another, the first fluid channel adapted to communicate with a high pressure hydraulic fluid source in the engine, the second fluid channel adapted to communicate with a hydraulic fluid return in the engine which is in fluid communication with a hydraulic fluid reservoir;
- the first and second fluid channels communicating with an internal cavity within the housing;
- a fluid outlet port formed in the housing and adapted to be connected to an external fluid line;
- and
- a three-way solenoid valve, engaged with the housing, the solenoid valve having a port housing located within the cavity, the port housing having an outer wall located within the cavity and an interior, the port housing including
- a first port formed in the port housing and extending into the port housing from the outer wall, the first port being located at a position on the port housing so as to be in fluid communication with the first fluid channel,
- a second port formed in the port housing and extending into the port housing from the outer wall, the second port being located at a position on the port housing so as to be in fluid communication with the second fluid channel, and
- a third port formed in the port housing and extending into the port housing from the outer wall, the second port being located at a position on the port housing so as to be in fluid communication with the fluid outlet port, the third port being in fluid communication with the first and second ports through the interior of the port housing,
- the solenoid valve adapted to receive electrical signals for controlling flow through the ports.
A solenoid assembly for controlling flow of hydraulic fluid from an engine to an electronic engine temperature control valve, the solenoid assembly comprising:
- a housing adapted to be mounted to an engine, the housing including
- a central cavity;
- a first fluid channel formed in the housing and adapted to channel high pressure hydraulic fluid from the engine to the central cavity;
- a second fluid channel formed in the housing and adapted to channel low pressure hydraulic fluid from the central cavity to the engine, the second fluid channel being spaced axially apart from the first fluid channel;
- a fluid outlet port formed in the housing and extending outward from the central cavity, the fluid outlet port adapted to be connected to an external fluid line;
- and
- a three-way solenoid valve, removably attached to the housing, the three-way solenoid valve having a port housing disposed within the central cavity, the port housing having an outer wall located within the cavity and an interior, the port housing including
- a first port formed in the port housing and extending into the port housing from the outer wall, the first port being located at a position on the port housing so as to be in fluid communication with the first fluid channel,
- a second port formed in the port housing and extending into the port housing from the outer wall, the second port being located at a position on the port housing so as to be in fluid communication with the second fluid channel, and
- a third port formed in the port housing and extending into the port housing from the outer wall, the third port being located at a position on the port housing so as to be in fluid communication with the fluid outlet port, the third port being in fluid communication with the first and second ports through the interior of the port housing,
- the solenoid valve adapted to receive electrical signals for controlling flow through the ports.
Dependencies are inferred from the claim text.