Adapter Ring for Transmission Pump Assembly to Engine Connection
A transmission pump adapter ring is provided that enables a transmission pump assembly to be operatively connected to an engine, thus enabling a common transmission pump assembly to be used in a given type or types of transmissions while enabling different engines to be used with the transmission simply by changing the adapter ring. The adapter ring allows a novel method of assembling a powertrain that permits assembly of the transmission with a generic (i.e., common) type of pump assembly prior to a determination of the engine type or types to be used with the transmission.
1 . An apparatus for connecting a transmission pump assembly having a pump assembly mounting face with an engine having a predetermined engine mounting face, the apparatus comprising:
an annular adapter ring having a pump-side mounting face at one end adapted to mount to the pump assembly mounting face and an engine-side mounting face at an opposed end adapted to mount to the predetermined engine mounting face.
2 . The apparatus of claim 1 , wherein the annular adapter ring is magnesium.
3 . The apparatus of claim 1 , wherein the pump assembly mounting face includes a predetermined pump assembly mounting bolt pattern; wherein the predetermined engine mounting face includes a predetermined engine mounting bolt pattern; wherein the adapter ring pump-side mounting face is characterized by the pump assembly mounting bolt pattern; and wherein the adapter ring engine-side mounting face is characterized by the engine mounting bolt pattern.
4 . A powertrain comprising:
a transmission having a casing;
a torque converter operatively connectable to the transmission;
a pump assembly including a transmission pump and a bell housing; wherein the bell housing is adapted to mount to the transmission casing and the pump is adapted to operatively connect to the torque converter;
an engine having an engine mounting face; and
an annular pump assembly adapter ring having a pump-side mounting face adapted to mount to the bell housing and an engine-side mounting face adapted to mount to the engine mounting face, thereby connecting the pump assembly with the engine.
5 . The powertrain of claim 4 , wherein the pump assembly mounting face includes a predetermined pump assembly bolt pattern; wherein the predetermined engine mounting face includes a predetermined engine bolt pattern; wherein the adapter ring pump-side mounting face is characterized by the pump assembly bolt pattern; and wherein the adapter ring engine-side mounting face is characterized by the engine bolt pattern.
6 . The apparatus of claim 5 , wherein the annular adapter ring is magnesium.
7 . A method of assembling a powertrain comprising:
maintaining an inventory of transmissions of a first type each connected with a respective transmission pump assembly of a first type; and
mounting an adapter ring to the pump assembly of a first of the transmissions in the inventory; wherein the adapter ring is configured with a predetermined engine mounting bolt pattern adapted for connection with a first type of engine.
8 . The method of assembling of claim 7 , wherein the adapter ring is a first adapter ring of a first type and the predetermined engine bolt pattern is a first engine bolt pattern on the first type of engine; and further comprising:
mounting a second adapter ring of a second type to the pump assembly of a second transmission of the first type from the inventory; wherein the second adapter ring is configured with a second predetermined engine bolt pattern adapted for connection with a second type of engine.
9 . The method of claim 8 , wherein the pump assembly of the first transmission is a first pump assembly and the pump assembly of the second transmission is a second pump assembly, and further comprising:
prior to said mounting the first adapter ring, mounting the first pump assembly to the first transmission; and
prior to said mounting the second adapter ring, mounting the second pump assembly to the second transmission.
10 . The method of claim 8 , further comprising:
prior to said mounting the first adapter ring, receiving an order for the first type of transmission to be used with the first type of engine;
maintaining an inventory of adapter rings of the first and second types; and
in response to said receiving the order for the first type of transmission to be used with the first type of engine, selecting the first adapter ring from the inventory for said mounting the first adapter ring.
11 . The method of claim 8 , further comprising:
prior to said mounting the second adapter ring, receiving an order for the first type of transmission to be used with the second type of engine;
maintaining an inventory of adapter rings of the first and second types; and
in response to said receiving the order for the first type of transmission to be used with the second type of engine, selecting the second adapter ring from the inventory for said mounting the second adapter ring.