1. Field of the Invention
The present invention relates to the automotive or vehicle industries and, more particularly, to vehicle air conditioning systems and related methods.
2. Related Art
In the automotive or vehicle industries, although vehicle air conditioning systems have changed somewhat over the years and have often become more complex, air conditioning systems for vehicles have conventionally included an air conditioning compressor. Also, different vehicle manufacturers often have different air conditioning systems, including different compressors, for different makes, models, and engine types. These vehicle air conditioning compressors are often rebuilt when damaged or other problems arise therein. Refrigerant or other cooling fluids are often required to be replaced for environmental or legal concerns which also can require rebuilding of the vehicle air conditioning compressor to make it more compatible for a different type of refrigerant. When these rebuilding events occur, it is often desirable to seal a fluid opening, e.g., where discharge or suction occurs, in a housing of the air conditioning compressor. Various plates and seals have been used over the years to seal this fluid opening. For example, a flat plate having one or more fastener openings and flat and relatively thin seal pad, a plate or plastic molded part designed to hold an O-ring or a molded seal, and a plastic molded part designed to fit snugly into a fluid hole or opening without a seal have been used for vehicle air conditioning compressors. These prior plates and seals, however, often are not compatible with different air conditioning compressor types of different vehicle manufacturers requiring distributors and rebuilders to carry numerous different types and sizes of plates and seals. The number and types of plates and seals can be confusing and costly when selecting an appropriate plate and pad seal for a particular make, model, and engine type.
In view of the foregoing, embodiments of the present invention advantageously provide a vehicle air conditioning compressor plate and seal combination, plate, pad seal, and kit for transporting a housing of a vehicle air conditioning compressor and related methods which reduces the number and types of plates and pad seals needed to seal a fluid opening or port, e.g., suction or discharge, in the housing and yet secure or fasten the plate to the housing to thereby prevent or substantially reduce leakage of fluid from a vehicle air conditioning compressor. For example, a rebuilder or distributor can stock a plurality or series of seals and compressor plates of embodiments of the present invention as a system or combination to plug virtually any vehicle air conditioning compressor. This advantageously enables the rebuilder or distributor to significantly reduce or minimize inventory and yet effectively have coverage for or be able to seal virtually any vehicle compressor. Also, embodiments of a pad seal, plate, and combination or system of the present invention advantageously allow a range of fluid hole or opening sizes, e.g., a wider range of diameters, in a vehicle air conditioning compressor to be effectively plugged and sealed, a range of varying center to center distances between fastener openings and fluid openings to be compensated, and a system or group of pad seals and plates to cover all of these fluid hole or opening sizes and center to center distances.
Embodiments of the present invention also advantageously provide a vehicle air conditioning compressor plate and seal combination, plate, pad seal, and kit for transporting a housing of a vehicle air conditioning compressor and related methods which allow distributors and rebuilders to reduce the number of parts needed to cover various vehicle air conditioning compressors of various different makes, models, and engine types of vehicles and yet assure customers that these vehicle air conditioning compressors can be effectively sealed for transport. Embodiments of the present invention further advantageously provide a vehicle air conditioning compressor plate and seal combination, plate, pad seal, and kit for transporting a housing of a vehicle air conditioning compressor and related methods which are easy to use, relatively inexpensive to manufacture, significantly reduce tooling, save time and inventory costs, and reduce difficulties which otherwise can arise when selecting a plate and pad seal for transporting a vehicle air conditioning compressor.
More particularly, an embodiment of the present invention provides a vehicle air conditioning compressor plate and seal combination adapted to be positioned on a housing of a vehicle air conditioning compressor. The combination includes a transporting plate member having a plate body including an upper surface, a lower surface opposing the upper surface and adapted to be positioned adjacent a surface region surrounding both a fluid opening and a fastener opening in an air conditioning compressor housing of a vehicle air conditioning compressor, a first end portion adapted to be positioned adjacent the fluid opening, a second end portion adapted to be positioned adjacent the fastener opening, and a medial portion connected to and extending between the first end portion and the second end portion and adapted to extend between the fluid opening and the fastener opening when positioned adjacent thereto. The plate body also includes a first transporting pad seal opening formed in and extending through the first end portion of the plate body from the upper surface to the lower surface thereof and adapted to coaxially align with the fluid opening in the air conditioning compressor housing when the lower surface of the plate body is positioned adjacent thereto. The plate body additionally includes a second transporting fastener opening extending through the second end portion and the medial portion of the plate body from the upper surface to the lower surface thereof and adapted to be positioned adjacent the fastener opening in the air conditioning compressor housing when the plate body is positioned adjacent thereto. The combination also includes a transporting pad seal member including a seal body having a seal base adapted to be positioned in the fluid opening of the air conditioning compressor housing and a seal grip connected to and extending outwardly from the seal base and adapted to be positioned into the first transporting pad seal opening of the plate body. The seal base has a first portion adapted to insert into the fluid opening and a second portion connected to an end of the first portion and extending outwardly from the first portion so as to have a greater diameter than the end of the first portion to thereby enhance sealing of the fluid opening when the seal base is positioned therein. The first portion is adapted to insert into the fluid opening in the air conditioning compressor housing when the lower surface of the plate body is positioned adjacent, e.g., abuttingly contacting, the surface region surrounding the fluid opening in the air conditioning compressor housing so that the second portion abuttingly contacts the lower surface of the plate body surrounding the first transporting pad seal opening and closes the fluid opening to prevent fluid leakage from the fluid opening of the air conditioning compressor housing.
The seal base of the seal body according to an embodiment of the present invention can be formed of a flexible material and further can have a recess formed therein extending inwardly from a bottom surface of the first portion of the seal base to thereby enhance insertion of the seal base into the fluid opening of the air conditioning compressor housing. The recess can further extend through the first portion of the seal base and into the second portion of the seal base. The flexible material, for example, can be rubber or some other flexible material for use in an automotive or vehicle environment. The first portion of the seal base advantageously can have a substantially frusto-conical shape, and the second portion of the seal base advantageously can have a substantially annular shape to thereby substantially appear to be a combination of a frusto-conical member and an o-ring member as a single unit to enhance insertion and sealing. The combination can also include a fastener having a body member including an elongate body portion adapted to extend through the second transporting fastener opening of the plate body and a head body portion connected to the elongate body portion and adapted to operate as a stop for the fastener when the elongate body portion extends through the second transporting fastener opening.
An embodiment of the present invention also provides a compressor plate and seal system adapted to be positioned on a housing of a vehicle air conditioning compressor. The system, for example, includes a plurality of transporting plate members, e.g., two plate members for a pair of fluid openings and a pair of fastener openings in the housing, and can be positioned in a container. Each of the plurality of plate members has a plate body including an upper surface, a lower surface opposing the upper surface and adapted to be positioned adjacent a surface region surrounding both a fluid opening and a fastener opening in an air conditioning compressor housing of a vehicle air conditioning compressor, a first end portion adapted to be positioned adjacent the fluid opening, a second end portion adapted to be positioned adjacent the fastener opening, and a medial portion connected to and extending between the first end portion and the second end portion and adapted to extend between the fluid opening and the fastener opening when positioned adjacent thereto. The plate body also includes a first transporting pad seal opening formed in and extending through the first end portion of the plate body from the upper surface to the lower surface thereof and adapted to coaxially align with the fluid opening in the air conditioning compressor housing when the lower surface of the plate body is positioned adjacent thereto. The plate body further includes a second transporting fastener opening extending through the second end portion and the medial portion of the plate body from the upper surface to the lower surface thereof, and adapted to be positioned adjacent the fastener opening in the air conditioning compressor housing when the plate body is positioned adjacent thereto. The system also includes a plurality of transporting pad seal members, e.g., two pad seal members as illustrated for each of a pair of fluid openings or more as redundant, alternative sizes, or alternative shapes as desired, positioned in the container. The plurality of seal pads each include a seal body having a seal base adapted to be positioned in the fluid opening of the air conditioning compressor housing and a seal grip connected to and extending outwardly from the seal base and adapted to be positioned into the first transporting pad seal opening of the plate body. The seal base has a first portion adapted to insert into the fluid opening and a second portion connected to an end of the first portion and extending outwardly from the first portion so as to have a greater diameter than the end of the first portion to thereby enhance sealing of the fluid opening when the seal base is positioned therein, the first portion being adapted to insert into the fluid opening in the air conditioning compressor housing when the lower surface of the plate body is positioned adjacent the surface region surrounding the fluid opening in the air conditioning compressor housing so that the second portion abuttingly contacts the lower surface of the plate body surrounding the first transporting pad seal opening and closes the fluid opening to prevent fluid leakage from the fluid opening of the air conditioning compressor housing. The seal system can further include a fastener having a body member adapted to extend through the second transporting fastener opening of the plate body to fasten the transporting plate member to the air conditioning compressor housing.
An embodiment of a compressor pad and seal systemt, for example, advantageously allows rebuilders, mechanics, service center personnel, and various other users or transporters of vehicle air conditioning compressors to be readily sealed for transporting or other handling operations so that leakage of fluid, e.g., assembly oil or compressor oil and the entry of debry, is prevented or substantially reduced. The pad and seal system advantageously allows those in the chain of distribution to provide the appropriate plate and pad combination for various vehicle air conditioning systems of various makes, models, and/or engine types in a look up table, computer memory or storage, microfiche, or other database to readily service customers or users. Because the system can include a plurality of plate members and pad seal members, the number of openings in a housing of a vehicle air conditioning compressor can be covered by the system. Also, because redundant pad seal members, different size pad seal members, and different shape pad seal members can be selectively packaged or contained in a container together, customers or users can be assured of having the appropriate plate members and pad seal members, including redundant ones in the event of damage or loss of one of the plate member or pad seal members.
The present invention also includes methods of preparing a vehicle air conditioning compressor having a housing associated therewith for transporting wherein the housing includes a fluid opening and a fastener opening. An embodiment of a method according to the present invention includes inserting a pad seal member into the fluid opening to substantially seal the fluid opening, positioning a plate member to abuttingly contact surface regions of the housing surrounding the fluid opening and the fastener opening. The plate member has a first transporting pad seal opening positioned to receive a portion of the pad seal member therein when the plate member abuttingly contacts the surface regions of the housing and has a second fastener opening spaced apart from the first transporting pad seal opening. The method also includes positioning a fastener through the fastener opening of the plate member to thereby fasten the plate member having the portion of the pad seal member in the first transporting pad seal opening positioned therein to the housing of the air conditioning compressor.
Another embodiment of a method of preparing a vehicle air conditioning compressor having a housing associated therewith for transporting wherein the housing includes a fluid opening and a fastener opening is also provided. The method includes positioning a plate member having a first transporting pad seal opening formed therein and a second fastener opening spaced apart from the first transporting pad seal opening also formed therein adjacent surface regions of the housing adjacent the fluid opening and the fastener opening so that the first transporting pad seal opening receives a portion of a pad seal member therein and inserting the pad seal member into the fluid opening to substantially seal the fluid opening.
Some of the objects and advantages of the present invention having been stated, others will become apparent as the description proceeds when taken in conjunction with the accompanying drawings, in which:
The present invention now will be described more fully hereinafter with reference to the accompanying drawings in which illustrated embodiments of the invention are shown. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Like numbers refer to like elements throughout, and prime or double prime notation, if used, indicate like elements in alternative embodiments.
In an embodiment of the plate member 20, the plate body 21 has a first bulbous end portion 24 adapted to be positioned adjacent the fluid opening 12, 16 in the air conditioning compressor housing 11, a second end portion 25 substantially narrower than the first end portion 24 and adapted to be positioned adjacent the fastener opening 14, 18 in the air conditioning compressor housing 11, and a medial portion 26 connected to and extending between the first bulbous end portion and the second narrower end portion so that outer peripheries of the combination of the first bulbous end portion 24, the medial portion 26, and the second narrower end portion 25 of the plate body 21 define a substantially tear drop shape as illustrated (see
As illustrated, the plate body 21 also has a first transporting pad seal opening 27, 27′ formed in and extending through the first bulbous end portion 24 of the plate body 21 from the upper surface 22, 22′ to the lower surface 23, 23′ thereof. The first transporting pad seal opening 27 can have a substantially annular shape, or other shapes as desired, and is adapted to be positioned adjacent the fluid opening 12, 16 in the air conditioning compressor housing 11 when the plate body 21 is positioned adjacent, e.g., abuttingly contacting, thereto (see
As illustrated in
As perhaps best illustrated in
As perhaps best illustrated in FIGS. 2, 4A-4B, and 6, the seal base 32 also has a recess 35 formed therein extending inwardly from a bottom surface 33 of the first portion 31 of the seal base 32 to thereby enhance insertion of the seal base 32 into the fluid opening 12, 12′ of the air conditioning compressor housing 11, 11′. The recess 35, 35′ not only allows ease of installation of the seal base 32, but also advantageously allows the seal to be used in a wider range of fluid holes or openings, e.g., various diameters y1, y2, y3 of openings 12, 112, 212 of
For example, in the illustrated embodiments, a distance d2 from a bottom surface 31 of the first portion 31 of the seal base 32 to a lower end of the second portion 34 of the seal base 32 substantially equals the distance d1 from the lower end of the second portion 34 to the top end 36 thereof (see
Also as illustrated in
For example, as illustrated in
In alternative situations, such as where a compressor is charged with fluids such as dry nitrogen when shipping or helium for leak checking, a gas can be injected through the pad using a needle in a pad and plate system or combination. In such a situation, in an alternative embodiment for example, the seal grip 37 can be modified at the top 39 to include an overhanging ledge, e.g., so that when inserted the ledge can be positioned between the lower surface of the plate and the outer surface surrounding the fluid opening, to advantageously allow the seal pad member to lock, or otherwise be firmly fitted, into the plate after insertion to prevent or significantly reduce the risk of the seal pad member pushing back through the plate, e.g., due to pressure, as will be understood by those skilled in the art. In this embodiment, the seal grip can also advantageously include a recess, recess region, cavity, or chamber extending inwardly from the top of the seal grip so that the recess would nearly connect to the center of the recess 35 in the seal base and thereby allow the needle a place to penetrate the seal yet maintaining enough seal material to seal after the needle is retracted.
As perhaps best shown in
As shown in
The method can also include the seal pad member 30 having a seal base 32 and a seal grip 37 connected to and extending outwardly from the seal base 32 to define the portion of the seal pad member 30 positioned in the first transporting pad seal opening 27 portion 34 of the seal base 32 positioned adjacent an entrance to the fluid opening 12 also can have a larger circumference than a portion 31 of the seal base 32 positioned to extend further into the fluid opening 12 to thereby enhance inserting of the seal base 32 into the fluid opening 12 and to enhance sealing of the fluid opening 12 adjacent the entrance thereof. The method can additionally include the seal grip 37 having a proximal portion 38 thereof positioned adjacent the seal base 32 having a larger circumference than a distal portion 39 extending into the first transporting pad seal opening 27 to thereby enhance the sealing of the first transporting pad opening 27 adjacent seal base 32. The method can further include the seal base 32 being formed of a flexible material, and the method further including compressing the seal base 32 prior to inserting the seal base 32 into the fluid opening 12.
Another embodiment of a method of preparing a vehicle air conditioning compressor having a housing 11 associated therewith for transporting wherein the housing 11 includes a fluid opening 12 and a fastener opening 14 is also provided. The method includes positioning a plate member 20 having a first transporting pad seal opening 27 formed therein and a second fastener opening 28 spaced apart from the first transporting pad seal opening 27 also formed therein adjacent surface regions 13, 15 of the housing 11 adjacent the fluid opening 12 and the fastener opening 14 so that the first transporting pad seal opening 27 receives a portion 37 of a pad seal member 30 therein and inserting the pad seal member 30 into the fluid opening 12 to substantially seal the fluid opening 12. The method can also include positioning a fastener 45 through the fastener opening 14 of the plate member 20 to thereby fasten the plate member 20 having the portion 37 of the pad seal member 30 in the first transporting pad seal opening 27 positioned therein to the housing 11 of the air conditioning compressor. The method can further include the seal base 32 being formed of a flexible material, and the method further including compressing the seal base 32 prior to inserting the seal base 32 into the fluid opening 12.
In the drawings and specification, there have been disclosed embodiments of the invention and, although specific terms are employed, they are used in a generic and descriptive sense only and not for the purpose of limitation, the scope of the invention being set forth in the following claims.