Valve member

Claim 2

In an internal combustion engine having a combustion chamber with intake and exhaust passages and valve seats at the combustion chamber ends of said passages and valve guide means, a valve member comprising: a. valve means having a head with a seat engaging portion to close the respective passage and a stem extending from said head, said valve means being reciprocably mounted in the valve guide means; b. an internally sealed cavity within said stem and extending from the head and contiguous to external surfaces of said stem; c. capillary means disposed contiguous the walls of said cavity; d. means cooperating with the valve guide means for receiving heat from and cooling the valve stem remote from the valve head; and e. a charge of working fluid within said cavity to establish an evaporation-condensation pattern to remove heat from said valve stem and transfer same to the stem end portion.

Claim 3

In an internal combustion engine having a combustion chamber with intake and exhaust passages and valve seats at the combustion chamber ends of said passages and valve guide means, a valve member comprising: a. an elongated valve body having an enlarged head with a seat engaging portion to close the respective passage and a stem portion extending therefrom, said valve body being reciprocably mounted in the valve guide means and having a closed end adjacent said head and stem defining wall portions extending therefrom and defining a cavity having an open end; b. means engaging said valve body adjacent the open end thereof to hermetically seal the cavity; c. means within said hermetically sealed cavity to establish an evaporation-condensation flow pattern therein for heat transfer from said head portion to said stem portion, said means establishing the evaporation condensation flow pattern including a capillary flow medium disposed contiguous the wall portions defining the cavity and extending between said head of said valve body and adjacent said cavity sealing means and a charge of working fluid in said cavity; and d. means cooperating with the valve guide means for receiving heat from and cooling the valve stem to thereby cool said head of said valve body.

Claim 4

In an internal combustion engine having a combustion chamber with intake and exhaust passages and valve seats at the combustion chamber ends of said passages and valve guide means, a valve member comprising: a. an elongated valve body having an enlarged head with a seat engaging portion to close the respective passage and a stem portion extending therefrom, said valve body being reciprocably mounted in the valve guide means and having a closed end adjacent said head and stem defining wall portions extending therefrom and defining a cavity having an open end; b. means engaging said valve body adjacent the open end thereof to hermetically seal the cavity; c. means within said hermetically sealed cavity to establish an evaporation-condensation flow pattern therein for heat transfer from said head portion to said stem portion, said means establishing the evaporation condensation flow pattern including a capillary flow medium disposed contiguous the wall portions defining the cavity and extending between said head of said valve body and adjacent said cavity sealing means and a charge of working fluid in said cavity; and d. means cooperating with the valve guide means for receiving heat from and cooling the valve stem to thereby cool said head of said valve body.

Claim 5

a capillary flow medium disposed contiguous the wall portions defining the cavity and extending between said head of said valve body and said reservoir;

Claim 6

a capillary flow medium disposed contiguous the wall portions defining the cavity and extending between said head of said valve body and said reservoir;

Claim 7

a fluid condenser section within said cavity and disposed adjacent said cavity sealing means;

Claim 8

a fluid condenser section within said cavity and disposed adjacent said cavity sealing means;

Claim 9

a reservoir containing a non-condensible fluid and disposed in said fluid condenser section to provide a temperature-stabilizing fluid-vapor interface;

Claim 10

a reservoir containing a non-condensible fluid and disposed in said fluid condenser section to provide a temperature-stabilizing fluid-vapor interface;

Claim 11

a charge of volatile and condensible working fluid in said cavity; and

Claim 12

a charge of volatile and condensible working fluid in said cavity; and

Claim 13

In an internal combustion engine having a combustion chamber with intake and exhaust passages and valve seats at the combustion chamber ends of said passages and valve guide means, a valve member comprising: a. an elongated valve body having an enlarged head with a seat engaging portion to close the respective passage and a stem portion extending therefrom, said valve body being reciprocably mounted in the valve guide means and having a closed end adjacent said head and stem defining wall portions extending therefrom and defining a cavity having an open end; b. a reservoir in said cavity and disposed adjacent said cavity sealing means and containing a non-condensible fluid providing a temperature stabilizing fluid vapor interface; c. means engaging said valve body adjacent the open end thereof to hermetically seal the cavity; d. means within said hermetically sealed cavity to establish an evaporation-condensation flow pattern therein for heat transfer from said head portion to said stem portion; and e. means cooperating with the valve guide means for receiving heat from and cooling the valve stem to thereby cOol said head of said valve body.

Claim 14

In an internal combustion engine having a combustion chamber with intake and exhaust passages and valve seats at the combustion chamber ends of said passages and valve guide means, a valve member comprising: a. an elongated valve body having an enlarged head with a seat engaging portion to close the respective passage and a stem portion extending therefrom, said valve body being reciprocably mounted in the valve guide means and having a closed end adjacent said head and stem defining wall portions extending therefrom and defining a cavity having an open end; b. a reservoir in said cavity and disposed adjacent said cavity sealing means and containing a non-condensible fluid providing a temperature stabilizing fluid vapor interface; c. means engaging said valve body adjacent the open end thereof to hermetically seal the cavity; d. means within said hermetically sealed cavity to establish an evaporation-condensation flow pattern therein for heat transfer from said head portion to said stem portion; and e. means cooperating with the valve guide means for receiving heat from and cooling the valve stem to thereby cOol said head of said valve body.

Claim 15

In an internal combustion engine having a combustion chamber with intake and exhaust passages and valve seats at the combustion chamber ends of said passages and valve guide means, a valve member comprising: a. an elongated valve body having an enlarged head with a seat engaging portion to close the respective passage and a stem portion extending therefrom, said valve body being reciprocably mounted in the valve guide means and having a closed end adjacent said head and stem defining wall portions extending therefrom and defining a cavity having an open end; b. means engaging said valve body adjacent the open end thereof to hermetically seal the cavity; c. means within said hermetically sealed cavity to establish an evaporation-condensation flow pattern therein for heat transfer from said head portion to said stem portion, said means establishing the evaporation - condensation flow pattern including:

Claim 16

In an internal combustion engine having a combustion chamber with intake and exhaust passages and valve seats at the combustion chamber ends of said passages and valve guide means, a valve member comprising: a. an elongated valve body having an enlarged head with a seat engaging portion to close the respective passage and a stem portion extending therefrom, said valve body being reciprocably mounted in the valve guide means and having a closed end adjacent said head and stem defining wall portions extending therefrom and defining a cavity having an open end; b. means engaging said valve body adjacent the open end thereof to hermetically seal the cavity; c. means within said hermetically sealed cavity to establish an evaporation-condensation flow pattern therein for heat transfer from said head portion to said stem portion, said means establishing the evaporation - condensation flow pattern including:

Claim 17

means cooperating with the valve guide means for receiving heat from and cooling the valve stem to thereby cool said head of said valve body.

Claim 18

means cooperating with the valve guide means for receiving heat from and cooling the valve stem to thereby cool said head of said valve body.

Claim 19

a capillary flow medium disposed contiguous the wall portions defining the cavity and extending between said fluid evaporation section and said fluid condenser section;

Claim 20

a capillary flow medium disposed contiguous the wall portions defining the cavity and extending between said fluid evaporation section and said fluid condenser section;

Claim 21

a charge of volatile and condensible working fluid in said hermetically sealed cavity; and d. means cooperating with the valve guide means for receiving heat from and cooling the valve stem to thereby cool said head of said valve body.

Claim 22

a charge of volatile and condensible working fluid in said hermetically sealed cavity; and d. means cooperating with the valve guide means for receiving heat from and cooling the valve stem to thereby cool said head of said valve body.

Claim 23

In an internal combustion engine having a combustion chamber with intake and exhaust passages and valve seats at the combustion chamber ends of said passages and valve guide means, a valve member comprising: a. an elongated valve body having an enlarged head with a seat engaging portion to close the respective passage and a stem portion extending therefrom, said valve body being reciprocably mounted in the valve guide means and having a closed end adjacent said head and stem defining wall portions extending therefrom and defining a cavity having an open end; b. means engaging said valve body adjacent the open end thereof to hermetically seal the cavity; c. means within said hermetically sealed cavity to establish an evaporation-condensation flow pattern therein for heat transfer from said head portion to said stem portion, said means establishing the evaporation condensation flow pattern including:

Claim 24

In an internal combustion engine having a combustion chamber with intake and exhaust passages and valve seats at the combustion chamber ends of said passages and valve guide means, a valve member comprising: a. an elongated valve body having an enlarged head with a seat engaging portion to close the respective passage and a stem portion extending therefrom, said valve body being reciprocably mounted in the valve guide means and having a closed end adjacent said head and stem defining wall portions extending therefrom and defining a cavity having an open end; b. means engaging said valve body adjacent the open end thereof to hermetically seal the cavity; c. means within said hermetically sealed cavity to establish an evaporation-condensation flow pattern therein for heat transfer from said head portion to said stem portion, said means establishing the evaporation condensation flow pattern including:

Claim 25

A valve member for use in internal combustion engines having a combustion chamber with intake and exhaust passages communicating with the combustion chamber and having valve seats at the combustion chamber ends of said passages and valve guide means, said valve member comprising: a. an elongated valve body having an enlarged head with a seat engaging portion to close the respective passage and a stem portion extending therefrom, said valve body being reciprocably mounted in the valve guide means and having a closed end adjacent said head and stem defining wall portions extending therefrom and defining a cavity having an open end; b. means engaging said valve body adjacent the open end thereof to hermeticAlly seal the cavity; c. means within said hermetically sealed cavity to establish an evaporation-condensation flow pattern therein for heat transfer from said head to said stem portion; d. means cooperating with the valve guide means for receiving heat from and cooling the valve stem to thereby cool said head of said valve body; e. means within said cavity and disposed adjacent said cavity sealing means to provide a temperature stabilizing fluid-vapor interface; f. said means providing the temperature-stabilizing fluid-vapor interface comprises a reservoir containing a non-condensible fluid; and g. said means establishing the evaporation-condensation flow pattern comprises a capillary flow medium disposed contiguous the wall portions defining the cavity and extending between said head of said valve body and said reservoir and a charge of volatile and condensible working fluid in said cavity.

Claim 26

A valve member for use in internal combustion engines having a combustion chamber with intake and exhaust passages communicating with the combustion chamber and having valve seats at the combustion chamber ends of said passages and valve guide means, said valve member comprising: a. an elongated valve body having an enlarged head with a seat engaging portion to close the respective passage and a stem portion extending therefrom, said valve body being reciprocably mounted in the valve guide means and having a closed end adjacent said head and stem defining wall portions extending therefrom and defining a cavity having an open end; b. means engaging said valve body adjacent the open end thereof to hermeticAlly seal the cavity; c. means within said hermetically sealed cavity to establish an evaporation-condensation flow pattern therein for heat transfer from said head to said stem portion; d. means cooperating with the valve guide means for receiving heat from and cooling the valve stem to thereby cool said head of said valve body; e. means within said cavity and disposed adjacent said cavity sealing means to provide a temperature stabilizing fluid-vapor interface; f. said means providing the temperature-stabilizing fluid-vapor interface comprises a reservoir containing a non-condensible fluid; and g. said means establishing the evaporation-condensation flow pattern comprises a capillary flow medium disposed contiguous the wall portions defining the cavity and extending between said head of said valve body and said reservoir and a charge of volatile and condensible working fluid in said cavity.

Claim 27

A valve member for use in internal combustion engines having a combustion chamber with intake and exhaust passages communicating with the combustion chamber and having valve seats at the combustion chamber ends of said passages and valve guide means, said valve member comprising: a. an elongated valve body having an enlarged head with a seat engaging portion to close the respective passage and a stem portion extending therefrom, said valve body being reciprocably mounted in the valve guide means and having a closed end adjacent said head and stem defining wall portions extending therefrom and defining a cavity having an open end; b. means engaging said valve body adjacent the open end thereof to hermetically seal the cavity; c. means within said hermetically sealed cavity to establish an evaporation-condensation flow pattern therein for heat transfer from said head to said stem portion; d. means cooperating with the valve guide means for receiving heat from and cooling the valve stem to thereby cool said head of said valve body; e. means within said cavity and disposed adjacent said cavity sealing means to provide a temperature-stabilizing fluid-vapor interface; f. said means providing the temperature-stabilizing fluid-vapor interface comprises a reservoir containing a noncondensible fluid; and g. said means establishing the evaporation-condensation flow pattern comprises a fluid evaporation section within said cavity and disposed adjacent the closed end of said valve body and a fluid condenser section within said cavity and disposed adjacent said cavity sealing means and a capillary flow medium disposed contiguous the wall portions defining the cavity and extending between said fluid evaporation section and said fluid condenser section and a charge of volatile and condensible working fluid in said hermetically sealed cavity.

Claim 28

A valve member for use in internal combustion engines having a combustion chamber with intake and exhaust passages communicating with the combustion chamber and having valve seats at the combustion chamber ends of said passages and valve guide means, said valve member comprising: a. an elongated valve body having an enlarged head with a seat engaging portion to close the respective passage and a stem portion extending therefrom, said valve body being reciprocably mounted in the valve guide means and having a closed end adjacent said head and stem defining wall portions extending therefrom and defining a cavity having an open end; b. means engaging said valve body adjacent the open end thereof to hermetically seal the cavity; c. means within said hermetically sealed cavity to establish an evaporation-condensation flow pattern therein for heat transfer from said head to said stem portion; d. means cooperating with the valve guide means for receiving heat from and cooling the valve stem to thereby cool said head of said valve body; e. means within said cavity and disposed adjacent said cavity sealing means to provide a temperature-stabilizing fluid-vapor interface; f. said means providing the temperature-stabilizing fluid-vapor interface comprises a reservoir containing a noncondensible fluid; and g. said means establishing the evaporation-condensation flow pattern comprises a fluid evaporation section within said cavity and disposed adjacent the closed end of said valve body and a fluid condenser section within said cavity and disposed adjacent said cavity sealing means and a capillary flow medium disposed contiguous the wall portions defining the cavity and extending between said fluid evaporation section and said fluid condenser section and a charge of volatile and condensible working fluid in said hermetically sealed cavity.