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US 6,637,219 B2Granted
Cooling device with a controlled coolant phase upstream of the compressor
AssigneeEaton Fluid Power GmbH
InventorsBert Leisenheimer, Holger Ullrich
Life of this patent
Estimating the term…
Abstract
A fluid collector of a cooling device, which collects fluid carried along by the coolant in a reservoir, is arranged upstream of the compressor. The return of the fluid coolant, which can also contain oil, into the section leading to the compressor takes place via an inlet conduit. A control device regulates the reintroduction of the fluid via a regulating valve in such a way, that the vapor conveyed to the compressor does not contain any large fluid particles.
Claims16
A cooling device, in particular for motor vehicles, comprising:
- a coolant circuit having at least one section in which a coolant is present in the form of a vapor;
- a precipitation collector arranged in said at least one section having a reservoir for keeping back a coolant present in the form of a fluid from within said coolant present in the form of vapor;
- an inlet conduit leading from said reservoir into said at least one section for providing said coolant present in the form of fluid to said coolant present in the form of vapor;
- a control member arranged in said inlet conduit for regulating the flow of said coolant present in the form of fluid introduced into said at least one section;
- a sensor device for detecting the state of said coolant present in the form of fluid in said at least one section;
- a control device connected to said sensor device and said control member;
- and wherein a heat exchanger is arranged in said at least one section, by means for which heat is supplied to said coolant present in the form of vapor.
4 more elements
A cooling device, in particular for motor vehicles, comprising:
- a coolant circuit having at least one section in which a coolant is present in the form of a vapor;
- a precipitation collector arranged in said at least one section having a reservoir for keeping back a coolant present in the form of a fluid from within said coolant present in the form of vapor;
- an inlet conduit leading from said reservoir into said at least one section for providing said coolant present in the form of fluid to said coolant present in the form of vapor;
- a control member arranged in said inlet conduit for regulating the flow of said coolant present in the form of fluid introduced into said at least one section;
- a sensor device for detecting the state of said coolant present in the form of fluid in said at least one section;
- a control device connected to said sensor device and said control member;
- and wherein a pressure sensor is a part of said sensor device, said pressure sensor is used for detecting the actual pressure of said coolant present in the form of vapor.
4 more elements
A cooling device, in particular for motor vehicles, comprising:
- a coolant circuit having at least one section in which a coolant is present in the form of a vapor;
- a precipitation collector arranged in said at least one section having a reservoir for keeping back a coolant present in the form of a fluid within said coolant present in the form of vapor;
- an inlet conduit leading from said reservoir into said at least one section for providing said coolant present in the form of fluid to said coolant present in the form of vapor;
- a control member arranged in said inlet conduit for regulating the flow of said coolant present in the form of fluid introduced into said at least one section;
- a sensor device for detecting the state of said coolant present in the form of fluid in said at least one section;
- a control device connected to said sensor device and said control member;
- and wherein said control device controls said control member in such a way that said coolant present in the form of vapor is present in the form of a dry vapor at said sensor device.
4 more elements
A cooling device, in particular for motor vehicles, comprising:
- a coolant circuit having at least one section in which a coolant is present in the form of a vapor;
- a precipitation collector arranged in said at least one section having a reservoir for keeping back a coolant present in the form of a fluid from within said coolant present in the form of vapor;
- an inlet conduit leading from said reservoir into said at least one section for providing said coolant present in the form of fluid to said coolant present in the form of vapor;
- a control member arranged in said inlet conduit for regulating the flow of said coolant present in the form of fluid introduced into said at least one section;
- a sensor device for detecting the state of said coolant present in the form of fluid in said at least one section;
- a control device connected to said sensor device and said control member;
- and wherein said control device controls said control member in such a way that said coolant present in the form of vapor is present in the form of a dry vapor after passing through said at least one section.
4 more elements
A cooling device, in particular for motor vehicles, comprising:
- a coolant circuit having at least one section in which a coolant is present in the form of a vapor;
- a precipitation collector arranged in said at least one section having a reservoir for keeping back a coolant present in the form of a fluid from within said coolant present in the form of vapor;
- an inlet conduit leading from said reservoir into said at least one section for providing said coolant present in the form of fluid to said coolant present in the form of vapor;
- a control member arranged in said inlet conduit for regulating the flow of said coolant present in the form of fluid introduced into said at least one section;
- a sensor device for detecting the state of said coolant present in the form of fluid in said at least one section;
- a control device connected to said sensor device and said control member;
- and wherein a fill level sensor is part of said sensor device, which detects a fill level in said reservoir and which is connected to said control device.
4 more elements
A method for operating a cooling device having a compressor which is to be provided with coolant vapor, comprising the following steps:
- fluid coolant contained in the coolant vapor is precipitated at a location upstream of the compressor by means of a precipitating collector,
- the phase state of the coolant is continuously monitored at a location upstream of the compressor, and
- fluid coolant is metered into the coolant vapor upstream of the compressor in such an amount that the coolant vapor upstream of the compressor is dry.
Dependencies are inferred from the claim text.